CONGRESS OF THE UNITED STATES CONGRESSIONAL BUDGET OFFICE The Budget and Economic Outlook: 2018 to 2028 Percentage of GDP 30 Actual Current-Law Projection 25 Outlays Over the next decade, the gap between 20 outlays and revenues is projected to be 15 persistently large. Revenues 10 0 2003 2008 2013 2018 2023 2028 Percentage of GDP 100 Actual Current-Law Projection That imbalance would cause 80 federal debt held by the public to 60 rise to nearly 100 percent of GDP. 40 20 0 2003 2008 2013 2018 2023 2028 Percent 6 Actual Current-Law Projection 4 2 The growth of real GDP is projected to 0 be relatively strong this year and next and then to moderate. -2 -4 2003 2008 2013 2018 2023 2028 APRIL 2018 Notes This report is usually published in January. This year, it was published in April to give the Congressional Budget Office time to analyze and incorporate some of the effects of recent major legislation, particularly Public Law 115-97 (originally called the Tax Cuts and Jobs Act and called the 2017 tax act in this report), which was enacted on December 22, 2017; the Bipartisan Budget Act of 2018 (P.L. 115-123), which was enacted on February 9, 2018; and the Consolidated Appropriations Act, 2018 (P.L. 115-141), which was enacted on March 23, 2018. Unless the report notes otherwise, the projections in it do not reflect economic developments, administrative actions, or regulatory changes that occurred after mid-February 2018. Because CBO had little time to incorporate the effects of recent legislation into its projections, it was not feasible to perform the analysis necessary to produce the 30-year budget projections mandated by section 3108 of the concurrent resolution on the budget for fiscal year 2016 (S. Con. Res. 11). CBO will release those projections in a few months. The report includes preliminary updates to projections of subsidies for employment-based health insurance and for insurance purchased through the marketplaces established under the Affordable Care Act. CBO and the staff of the Joint Committee on Taxation expect to complete final estimates later this spring, when CBO will publish a report about subsidies for health insurance coverage for people under age 65. Unless otherwise indicated, all years referred to in describing the budget outlook are federal fiscal years, which run from October 1 to September 30 and are designated by the calendar year in which they end. Years referred to in describing the economic outlook are calendar years. Numbers in the text, tables, and figures may not add up to totals because of rounding. Also, some values are expressed as fractions to indicate numbers rounded to amounts greater than a tenth of a percentage point. As referred to in this report, the Affordable Care Act comprises the Patient Protection and Affordable Care Act (P.L. 111-148), the health care provisions of the Health Care and Education Reconciliation Act of 2010 (P.L. 111-152), and the effects of subsequent judicial decisions, statutory changes, and administrative actions. Supplemental data for this analysis are available on CBO’s website (www.cbo.gov/ publication/53651), as are a glossary of common budgetary and economic terms (www.cbo.gov/publication/42904), a description of how CBO prepares baseline budget projections (www.cbo.gov/publication/53532), and previous editions of the report (https://go.usa.gov/xQrzS). www.cbo.gov/publication/53651 Contents Summary 1 Economic Growth Is Projected to Be Relatively Strong This Year and Next and Then to Moderate  1 GDP Is Projected to Be Greater Than CBO Previously Estimated 3 Deficits Are Projected to Be Large by Historical Standards 3 Deficits Are Projected to Be Larger Than CBO Previously Estimated 5 Debt Held by the Public Is Projected to Approach 100 Percent of GDP 5 Deficits and Debt Would Be Larger If Some Current Policies Were Continued 6 1 The Economic Outlook Overview7 Recent Economic Developments The Economic Effects of Recent Changes in Fiscal Policy 7 11 11 Potential Output 14 Actual Output 17 The Labor Market 26 Inflation28 Monetary Policy and Interest Rates 29 Income29 Uncertainty Surrounding the Economic Outlook 32 Comparisons With CBO’s June 2017 Projections 33 Comparisons With Other Economic Projections 39 2 The Spending Outlook Overview43 Mandatory Spending 43 45 BOX 2-1. CATEGORIES OF FEDERAL SPENDING 46 Discretionary Spending 54 Net Interest 61 Uncertainty Surrounding the Spending Outlook 62 3 The Revenue Outlook 63 Overview63 The Evolving Composition of Revenues 64 Individual Income Taxes 65 Payroll Taxes 68 Corporate Income Taxes 69 Smaller Sources of Revenues 71 Tax Expenditures 74 Uncertainty Surrounding the Revenue Outlook 78 II The Budget and Economic Outlook: 2018 to 2028 April 2018 4 The Outlook for Deficits and Debt 79 Overview79 Deficits79 Debt 85 Alternative Assumptions About Fiscal Policy 88 A Changes in CBO’s Baseline Projections Since June 2017  Overview93 Legislative Changes Economic Changes 93 93 99 Technical Changes 101 B The Effects of the 2017 Tax Act on CBO’s Economic and Budget Projections 105 Overview105 The Major Provisions of the Act 106 BOX B-1. REPATRIATION OF UNDISTRIBUTED FOREIGN EARNINGS 109 How the Act Affects the Economic Outlook 114 BOX B-2. COMPARISON WITH OTHER ORGANIZATIONS’ ESTIMATES 117 BOX B-3. THE EFFECTS OF PROFIT SHIFTING ON ECONOMIC STATISTICS 124 How the Act Affects the Budget Outlook 128 Uncertainty Surrounding CBO’s Estimates 129 C Trust Funds 131 Overview131 Social Security’s Trust Funds 134 Trust Funds for Federal Employees’ Retirement Programs 134 Medicare’s Trust Funds 136 Highway Trust Fund 137 D CBO’s Economic Projections for 2018 to 2028 139 E Historical Budget Data 143 List of Tables and Figures 155 About This Document 157 Summary I n the Congressional Budget Office’s baseline pro- matching CBO’s estimate of the economy’s maximum jections, which incorporate the assumption that sustainable rate of growth. current laws governing taxes and spending generally remain unchanged, the federal budget deficit grows Real GDP (that is, GDP adjusted to remove the effects substantially over the next few years. Later on, between of inflation) and real potential GDP are now projected to 2023 and 2028, it stabilizes in relation to the size of the be greater throughout the coming decade than projected economy, though at a high level by historical standards. last June, in part because of the significant recent changes in fiscal policy. Also, interest rates are projected to be As a result, federal debt is projected to be on a steadily higher and the unemployment rate lower in the next few rising trajectory throughout the coming decade. Debt years than CBO projected previously. held by the public, which has doubled in the past 10 years as a percentage of gross domestic product Even if federal laws did generally remain in place, (GDP), approaches 100 percent of GDP by 2028 in budgetary and economic outcomes would be difficult to CBO’s projections. That amount is far greater than the predict and thus uncertain. CBO’s projections, especially debt in any year since just after World War II. Moreover, its economic projections, are even more uncertain than if lawmakers changed current law to maintain certain usual this year, because they incorporate estimates of the current policies—preventing a significant increase in economic effects of the recent changes in fiscal policy— individual income taxes in 2026 and drops in funding and those estimates are themselves uncertain. CBO aims for defense and nondefense discretionary programs in to formulate projections that fall in the middle of the 2020, for example—the result would be even larger distribution of possible outcomes. increases in debt. Economic Growth Is Projected to Be Projected deficits over the 2018–2027 period have Relatively Strong This Year and Next and increased markedly since June 2017, when CBO issued Then to Moderate  its previous projections. The increase stems primarily In CBO’s projections, the growth of real GDP exceeds from tax and spending legislation enacted since then— the growth of real potential output over the next two especially Public Law 115-­ 7 (originally called the Tax 9 years, putting upward pressure on inflation and interest Cuts and Jobs Act and called the 2017 tax act in this rates (see Summary Figure 1). But during the 2020– report), the Bipartisan Budget Act of 2018 (P.L. 115-­ 23), 1 2026 period, a number of factors dampen economic and the Consolidated Appropriations Act, 2018 (P.L. 115-­ growth: higher interest rates and prices, slower growth 141). The legislation has significantly reduced revenues in federal outlays, and the expiration of reductions in and increased outlays anticipated under current law. personal income tax rates. After 2026, economic growth is projected to rise slightly, matching the growth rate of In CBO’s economic projections, which underlie its bud- potential output by 2028. get projections, output grows at a faster pace this year than in 2017, as the recent changes in fiscal policy add to Economic Growth existing momentum in spending on goods and services. Between 2018 and 2028, actual and potential real out- Growth in actual GDP outpaces growth in potential put alike are projected to expand at an average annual (that is, maximum sustainable) GDP both this year rate of 1.9 percent. In CBO’s forecast, the growth of and next, pushing the unemployment rate down. After potential GDP is the key determinant of the growth of 2019, economic growth is projected to slow, eventually actual GDP through 2028, because actual output is very 2 The Budget and Economic Outlook: 2018 to 2028 April 2018 Summary Figure 1 . Growth of Real GDP and Real Potential GDP Percent 4 Historical Projected 3 Real GDP Real Potential GDP In CBO’s projections, real GDP growth 2 and real potential GDP growth average 1.9 percent over the 2018–2028 period, even though real GDP grows more rapidly 1 at first. 0 2013 2015 2017 2019 2021 2023 2025 2027 Source: Congressional Budget Office. Real values are nominal values that have been adjusted to remove the effects of inflation. Potential GDP is CBO’s estimate of the maximum sustainable output of the economy. The growth of real GDP and of real potential GDP is measured from the fourth quarter of one calendar year to the fourth quarter of the next. GDP = gross domestic product. near its potential level now and is projected to be near its 2018–2028 period. In addition, all three major laws potential level at the end of the period. mentioned above provide fiscal stimulus, raising real GDP more than potential GDP in the near term. Over Potential output is projected to grow more quickly than the longer term, all of those effects, as well as the larger it has since the start of the 2007–2009 recession, as federal budget deficits resulting from the new laws, exert the growth of productivity increases to nearly its aver- upward pressure on interest rates and prices. age over the past 25 years and as the recent changes in fiscal policy boost incentives to work, save, and invest. The largest effects on GDP over the decade stem from the Nonetheless, potential output is projected to grow more tax act. In CBO’s projections, it boosts the level of real slowly than it did in earlier decades, held down by slower GDP by an average of 0.7 percent and nonfarm payroll growth of the labor force (which results partly from the employment by an average of 0.9 million jobs over the ongoing retirement of baby boomers). 2018–2028 period.* During those years, the act also raises the level of real gross national product (GNP) by an annual In CBO’s projections, real GDP expands by 3.3 percent average of about $470 per person in 2018 dollars. (GNP this year and by 2.4 percent in 2019 (see Summary differs from GDP by including the income that U.S. Table 1). It grew by 2.6 percent last year. Most of the residents earn from abroad and excluding the income that growth in output in the next two years is driven by nonresidents earn from domestic sources; it is therefore a consumer spending and business investment, but federal better measure of the income available to U.S. residents.) spending also contributes a significant amount this year. Those projected effects grow in the earlier years of the After averaging 1.7 percent from 2020 through 2026, period and become smaller in the later years. real GDP growth is projected to average 1.8 percent in the last two years of the 2018–2028 period. The other two laws are estimated to increase output in the near term but dampen it over the longer term. The Effects of Recent Legislation on the Economy fiscal stimulus that they provide boosts GDP by 0.3 per- The recently enacted legislation has shaped the economic cent in 2018 and by 0.6 percent in 2019, in CBO’s outlook in significant ways. In CBO’s projections, the assessment. However, the larger budget deficits that effects of the 2017 tax act on incentives to work, save, would result are estimated to reduce the resources avail- and invest raise real potential GDP throughout the able for private investment, lowering GDP in later years. [*Value for nonfarm employment corrected on April 17, 2018] SUMMARY The Budget and Economic Outlook: 2018 to 2028 3 Summary Table 1 . CBO’s Projections of Key Economic Indicators for Calendar Years 2018 to 2028 Annual Average Actual, 2021– 2023– 2017 2018 2019 2020 2022 2028 Percentage Change From Fourth Quarter to Fourth Quarter Gross Domestic Product Real a 2.6 3.3 2.4 1.8 1.5 1.7 Nominal 4.5 5.2 4.5 3.9 3.7 3.9 Inflation PCE price index 1.7 1.8 2.0 2.1 2.1 2.0 Core PCE price index b 1.5 1.9 2.1 2.2 2.1 2.0 Annual Average Unemployment Rate (Percent) 4.4 3.8 3.3 3.6 4.4 4.8 Payroll Employment (Monthly change, in thousands) c 181 211 182 62 25 57 Interest Rates (Percent) Three-month Treasury bills 0.9 1.9 2.9 3.6 3.7 2.8 Ten-year Treasury notes 2.3 3.0 3.7 4.1 4.1 3.7 Sources: Congressional Budget Office; Bureau of Economic Analysis; Bureau of Labor Statistics; Federal Reserve. PCE = personal consumption expenditures. a.Real values are nominal values that have been adjusted to remove the effects of inflation. b.Excludes prices for food and energy. c.Calculated as the change in payroll employment from the fourth quarter of one calendar year to the fourth quarter of the next, divided by 12 (the average monthly amount). GDP Is Projected to Be Greater Than CBO average, from 2018 to 2023—by roughly 0.7 percentage Previously Estimated points and 0.4 percentage points, respectively—than CBO’s current economic projections differ from those projected in June. That faster rise in interest rates primar- that the agency made in June 2017 in a number of ways. ily reflects stronger overall demand. The most significant is that potential and actual real GDP are projected to grow more quickly over the next Deficits Are Projected to Be Large by few years. As a result, the levels of those measures are Historical Standards 1.6 percent higher than CBO previously estimated for CBO estimates that the 2018 deficit will total $804 bil- 2027 (the last year in the previous projection period). lion, $139 billion more than the $665 billion shortfall Projected output is greater because of recently enacted recorded in 2017 (see Summary Table 2). Both amounts, legislation, data that became available after CBO’s previ- however, are affected by shifts in the timing of some ous economic projections were completed, and improve- payments. Outlays in 2018—and thus the deficit—have ments in the agency’s analytical methods. Also, because been reduced by $44 billion because October 1, 2017 inflation is now anticipated to be higher, the level of (the first day of fiscal year 2018), fell on a weekend; as nominal GDP is projected to be 2.4 percent higher in a result, certain payments that were to be made on that 2027 than previously estimated. day were instead made in September, in fiscal year 2017. If not for those shifts, the deficit projected for 2018 Over the next decade, the unemployment rate is lower would be $848 billion.1 in CBO’s current projections than in its previous ones— particularly during the next few years, when economic 1. October 1 will fall on a weekend again in 2022, 2023, and 2028. The resulting shifts noticeably boost projected spending and stimulus boosts demand for labor. Also, both short-­and deficits in 2022 and 2028; they reduce spending and the deficit long-­ erm interest rates are projected to be higher, on t in 2024. 4 The Budget and Economic Outlook: 2018 to 2028 April 2018 Summary Table 2 . CBO’s Baseline Budget Projections Total Actual, 2019– 2019– 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2023 2028 In Billions of Dollars Revenues 3,316 3,338 3,490 3,678 3,827 4,012 4,228 4,444 4,663 5,002 5,299 5,520 19,234 44,162 Outlays 3,982 4,142 4,470 4,685 4,949 5,288 5,500 5,688 6,015 6,322 6,615 7,046 24,893 56,580 Deficit -665 -804 -981 -1,008 -1,123 -1,276 -1,273 -1,244 -1,352 -1,320 -1,316 -1,526 -5,660 -12,418 Debt Held by the Public at the End of the Year 14,665 15,688 16,762 17,827 18,998 20,319 21,638 22,932 24,338 25,715 27,087 28,671 n.a. n.a. As a Percentage of Gross Domestic Product Revenues 17.3 16.6 16.5 16.7 16.7 16.9 17.2 17.4 17.5 18.1 18.5 18.5 16.8 17.5 Outlays 20.8 20.6 21.2 21.3 21.6 22.3 22.3 22.2 22.6 22.9 23.1 23.6 21.8 22.4 Deficit -3.5 -4.0 -4.6 -4.6 -4.9 -5.4 -5.2 -4.9 -5.1 -4.8 -4.6 -5.1 -4.9 -4.9 Debt Held by the Public at the End of the Year 76.5 78.0 79.3 80.9 83.1 85.7 87.9 89.6 91.5 93.1 94.5 96.2 n.a. n.a. Memorandum: Deficit as a Percentage of GDP, Adjusted to Exclude Timing Shifts a -3.5 -4.2 -4.6 -4.6 -4.9 -5.1 -5.1 -5.1 -5.1 -4.8 -4.6 -4.8 -4.9 -4.9 Source: Congressional Budget Office. GDP = gross domestic product; n.a. = not applicable. a.The adjusted amounts exclude the effects of shifting payments from one fiscal year into another so that those payments are not made on a weekend. In CBO’s projections, budget deficits continue increasing and 2028. They have averaged 17.4 percent of GDP over after 2018, rising from 4.2 percent of GDP this year to the past 50 years. 5.1 percent in 2022 (adjusted to exclude the shifts in timing). That percentage has been exceeded in only five Outlays years since 1946; four of those years followed the deep In CBO’s projections, outlays for the next three years 2007–2009 recession. Deficits remain at 5.1 percent remain near 21 percent of GDP, which is higher than between 2022 and 2025 before dipping at the end of their average of 20.3 percent over the past 50 years. After the period, primarily because some tax provisions are that, outlays grow more quickly than the economy does, scheduled to expire under current law, boosting revenues. reaching 23.3 percent of GDP (adjusted to exclude shifts Over the 2021–2028 period, projected deficits average in timing) by 2028. 4.9 percent of GDP; the only time since World War II when the average deficit has been so large over so many That increase reflects significant growth in mandatory years was after the 2007–2009 recession. spending—mainly because the aging of the population and rising health care costs per beneficiary are projected Revenues to increase spending for Social Security and Medicare, For the next few years, revenues hover near their among other programs. It also reflects significant growth 2018 level of 16.6 percent of GDP in CBO’s projections. in interest costs, which are projected to grow more Then they rise steadily, reaching 17.5 percent of GDP quickly than any other major component of the budget, by 2025. At the end of that year, many provisions of the the result of rising interest rates and mounting debt. By 2017 tax act expire, causing receipts to rise sharply—to 2028, net outlays for interest are projected to be roughly 18.1 percent of GDP in 2026 and 18.5 percent in 2027 triple what they are this year in nominal terms and SUMMARY The Budget and Economic Outlook: 2018 to 2028 5 Summary Figure 2 . Federal Debt Held by the Public Percentage of Gross Domestic Product 120 120 Actual Projected 100 100 80 80 60 60 40 40 20 20 0 0 1940 1945 1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010 2015 2020 2025 Source: Congressional Budget Office. roughly double when measured as a percentage of GDP. income tax rates that the tax act has put in place for In contrast, discretionary spending in the projections much of the period. Projected outlays are higher mostly declines in relation to the size of the economy. because the other two pieces of legislation will increase discretionary spending. Those revenue reductions and Deficits Are Projected to Be Larger Than CBO spending increases would result in larger deficits and thus Previously Estimated in higher interest costs than CBO previously projected. The deficit that CBO now estimates for 2018 is $242 billion larger than the one that it projected for that In contrast, revisions to CBO’s economic projections year in June 2017. Accounting for most of that differ- caused the agency to reduce its estimate of the cumula- ence is a $194 billion reduction in projected revenues, tive deficit by $1.0 trillion. Expectations of faster growth mainly because the 2017 tax act is expected to reduce in the economy and in wages and corporate profits led to collections of individual and corporate income taxes. an increase of $1.1 trillion in projected tax receipts from all sources. Other changes had relatively small net effects For the 2018–2027 period, CBO now projects a cumula- on the projections. tive deficit that is $1.6 trillion larger than the $10.1 tril- lion that the agency anticipated in June. Projected Debt Held by the Public Is Projected to revenues are lower by $1.0 trillion, and projected outlays Approach 100 Percent of GDP are higher by $0.5 trillion. As deficits accumulate in CBO’s projections, debt held by the public rises from 78 percent of GDP (or Laws enacted since June 2017—above all, the three men- $16 trillion) at the end of 2018 to 96 percent of GDP tioned above—are estimated to make deficits $2.7 tril- (or $29 trillion) by 2028. That percentage would be the lion larger than previously projected between 2018 and largest since 1946 and well more than twice the average 2027, an effect that results from reducing revenues by over the past five decades (see Summary Figure 2). $1.7 trillion (or 4 percent) and increasing outlays by $1.0 trillion (or 2 percent).2 The reduction in projected Such high and rising debt would have serious negative revenues stems primarily from the lower individual consequences for the budget and the nation: 2. Those estimates generally reflect the budgetary effects reported in CBO’s cost estimates at the time the new laws were enacted become available in recent months about the 2017 tax act. Those and do not include the budgetary effects of information that has adjustments are classified as technical updates. 6 The Budget and Economic Outlook: 2018 to 2028 April 2018 • Federal spending on interest payments on that debt • More than 50 expiring revenue provisions were would increase substantially, especially because extended, including the individual income tax interest rates are projected to rise over the next few provisions of the 2017 tax act; years. • Delays in implementing certain taxes established • Because federal borrowing reduces total saving in the by the Affordable Care Act were extended or made economy over time, the nation’s capital stock would permanent; ultimately be smaller, and productivity and total wages would be lower. • Scheduled limits on discretionary appropriations did not take effect, and most appropriations instead • Lawmakers would have less flexibility to use tax grew each year from their 2018 amount at the rate of and spending policies to respond to unexpected inflation; and challenges. • Lawmakers provided inflation-­ djusted emergency a • The likelihood of a fiscal crisis in the United States appropriations for nondefense discretionary programs would increase. There would be a greater risk equal to the average amount of such funding from that investors would become unwilling to finance 2012 through 2017—about $11 billion—each year the government’s borrowing unless they were between 2019 and 2028, rather than the roughly compensated with very high interest rates; if that $100 billion a year projected in the baseline. happened, interest rates on federal debt would rise suddenly and sharply. In that scenario, far larger deficits and much greater debt would result than in CBO’s baseline projections for the Deficits and Debt Would Be Larger If Some 2019–2028 period. Deficits would be larger by an aver- Current Policies Were Continued age of a full percentage point of GDP, rising by a total CBO also analyzed an alternative scenario in which of $2.6 trillion to yield a cumulative deficit of nearly current law was altered to maintain major policies that $15 trillion over that period. And debt held by the pub- are now in place and to provide more typical amounts lic would reach about 105 percent of GDP by the end of emergency funding than the sums provided for 2018. of 2028, an amount that has been exceeded only once in Specifically, CBO analyzed what would happen if: the nation’s history. Moreover, the pressures contributing to that rise would accelerate and push debt up even more sharply in subsequent decades. CHAPTER 1 Chapter 1 The Economic Outlook Overview June 2017; in particular, the amount of output is higher In the Congressional Budget Office’s projections for throughout the projection period. CBO’s current 2018 through 2028, the economy follows a marked outlook also is stronger than the consensus outlook of cyclical path: Economic growth rises notably this year, about 50 private-sector forecasters. Although all forecasts slows during the next few years, and then rises to match involve some degree of uncertainty, CBO’s current pro- the growth of potential output—the maximum sustain- jections are particularly uncertain because they incorpo- able output of the economy—in the last years of the rate estimates of the likely economic impact of the recent projection period. Over the next few years, the demand changes in fiscal policy that, although based on past for output exceeds the sustainable supply of output (that experience, are themselves uncertain. is, there is excess demand in the economy). That excess demand pushes up inflation and interest rates and exerts The Overall Pattern of CBO’s Economic Projections downward pressure on the unemployment rate, which In CBO’s current projections, both real gross domestic was already below CBO’s estimate of the natural rate of product (or GDP, the total output of goods and services unemployment (the rate arising from all sources other adjusted to remove the effects of inflation) and real than fluctuations in the economy) at the end of last year. potential GDP grow at an average annual rate of 1.9 per- Higher interest rates slow the growth of output, and the cent over the 2018–2028 period.1 Projected growth excess demand begins to diminish after 2019. By 2022, of real GDP over the next two years is faster than it is the excess demand disappears, easing the pressure on during the rest of the projection period (see Figure 1-1). inflation, interest rates, and the labor market. The growth of real potential GDP also is faster over the next few years than it is in later years. The cyclical path in CBO’s economic forecast reflects recent economic developments; the changes to federal tax Potential Output. In CBO’s analysis, potential GDP policies made by Public Law 115-97, referred to here as the represents the agency’s estimate of the trend around 2017 tax act; recent legislation that increased projected which actual GDP fluctuates over business cycles.2 Given discretionary spending; and the assumption that fiscal the state of the economy, the average growth of real policy will generally unfold as scheduled under current potential GDP is the key determinant of CBO’s pro- law. At the end of last year, the growth rate of the U.S. jection of the average growth of real GDP over the next economy was trending upward, and the slack in the 11 years. economy—that is, underused productive resources, such as unemployed workers—was almost gone. The recent In CBO’s forecast, real potential GDP grows faster, on tax cuts will, in CBO’s view, increase the supply of labor average, over the projection period than it has over the and capital in the economy, thereby raising potential past decade. That occurs mainly because the growth output throughout the projection period. Nevertheless, in productivity per unit of combined labor and capital because the tax cuts boost after-tax incomes, they, along services is projected to rise to nearly its average over the with the increases in federal spending, are expected to add excess demand in the next few years. Near the end 1. For an explanation of how CBO constructs its projections, see of the projection period, the scheduled expiration of the Robert W. Arnold, How CBO Produces Its 10-Year Economic reduction in tax rates on personal income temporarily Forecast, Working Paper 2018-02 (Congressional Budget Office, and slightly reduces demand in the economy. February 2018), www.cbo.gov/publication/53537. 2. See Robert Shackleton, Estimating and Projecting Potential Output CBO’s current projections suggest a stronger economic Using CBO’s Forecasting Growth Model, Working Paper 2018-03 outlook than those that the agency published in (Congressional Budget Office, February 2018), www.cbo.gov/ publication/53558. 8 The Budget and Economic Outlook: 2018 to 2028 April 2018 Figure 1-1 . CBO’s Economic Forecast at a Glance 1 Spurred by fiscal stimulus, real GDP growth is expected to be 2 The projected growth creates excess demand in the economy, 3.3 percent this year and 2.4 percent next year. pushing the unemployment rate significantly below the natural rate. Percent Percent 4 Actual Projected 8 Historical Projected 3 6 Natural Rate of Unemployment 2 4 1 2 Unemployment Rate 0 0 2013 2015 2017 2019 2021 2023 2025 2027 2013 2015 2017 2019 2021 2023 2025 2027 3 By 2020, excess demand pushes consumer price inflation 4 Interest rates rise over the next few years as the Federal Reserve slightly above the Federal Reserve’s target of 2 percent. raises the federal funds rate to reduce inflationary pressures. Percent Percent 5 Actual Projected 5 10-Year Actual Projected Treasury Notes 4 4 3 3 2 2 3-Month Treasury Bills 1 1 0 0 2013 2015 2017 2019 2021 2023 2025 2027 2013 2015 2017 2019 2021 2023 2025 2027 5 Because the fiscal stimulus lowers national saving, net 6 CBO expects the average annual growth of real potential international lending by the United States decreases (that is, GDP to be faster over the next five years than it has been in the nation’s borrowing from abroad increases). recent years, in part because of the greater incentives to work and invest that stem from the 2017 tax act. Percentage of GDP Percent 1 3 Actual Projected Historical Projected 0 2 -1 -2 1 2.0 1.8 -3 1.5 -4 0 2013 2015 2017 2019 2021 2023 2025 2027 2008–2017 2018–2022 2023–2028 Sources: Congressional Budget Office; Bureau of Economic Analysis; Bureau of Labor Statistics; Federal Reserve. Real values are nominal values that have been adjusted to remove the effects of inflation. Excess demand exists when the demand for goods and services exceeds the amount that the economy can sustainably supply. The unemployment rate is the number of jobless people who are available for and actively seeking work, expressed as a percentage of the labor force. The natural unemployment rate is the rate arising from all sources except fluctuations in the overall demand for goods and services. Consumer price inflation is based on the price index for personal consumption expenditures. The federal funds rate is the interest rate financial institutions charge each other for overnight loans of their monetary reserves. Net international lending by the United States is national saving minus domestic investment. Potential GDP is CBO’s estimate of the maximum sustainable output of the economy. Real GDP growth and inflation are measured from the fourth quarter of one calendar year to the fourth quarter of the next. For the unemployment rate and interest rates, data are fourth-quarter values. The average annual growth rates of real potential GDP are compound annual growth rates over the specified period calculated using calendar year data. GDP = gross domestic product. CHAPTER 1: THE ECONOMIC OUTLOOK The Budget and Economic Outlook: 2018 to 2028 9 past 25 years. Also, the agency projects that reductions in of output rises slightly in 2027, once again returning marginal income tax rates will boost incentives to work output to its historical level relative to potential output and invest and thereby raise potential output. in 2027 and 2028. Also in 2027, the unemployment rate falls and returns to its historical level relative to the At the same time, in CBO’s forecast, the larger federal natural rate, interest rates rise, and the rate of inflation is deficits projected under current law lower national 2 percent. saving and increase the nation’s borrowing from abroad, raising interest rates and thus tending to slow potential Uncertainty Surrounding the Projections output growth by reducing—or crowding out—some CBO’s current economic projection is particularly uncer- capital investment. Finally, the expiration of the cuts tain. The recent changes in fiscal policy add uncertainty in individual income taxes that will, under current law, to those projections throughout the forecast period. take effect at the end of 2025, reduces the incentive to CBO’s estimates of the responses of households and work, modestly slowing the growth of hours worked and businesses to changes in incentives to work and invest potential output. are based on the effects of similar policies in the past, but none of those previous episodes is a perfect guide The Outlook for the Next Two Years. CBO projects to the future. Moreover, because many of the recent tax that recent legislation—the 2017 tax act and the legis- provisions are scheduled to change during the projection lation affecting discretionary spending—will strengthen period, CBO estimated how individuals and businesses the momentum in household and business spending, might react to the scheduled shifts in policy. The fore- adding to the excess demand in the economy. In per- cast for economic growth could be understated if capital centage terms, the resulting gap between real GDP and investment and the labor supply increase more than real potential GDP would be the largest it has been since CBO anticipates in response to changes in the tax code. 2000. Correspondingly, in CBO’s projections, employ- Conversely, economic growth could be overstated if the ment picks up considerably this year, and during this year incentive effects of the tax changes are smaller than the and next, the unemployment rate falls significantly below agency expects. the agency’s estimate of the natural rate of unemploy- ment, and inflation and interest rates rise (see Table 1-1). In the long term, key determinants of long-run growth, such as the labor force, the capital stock (equipment, The Outlook for the Rest of the Projection Period. structures, intellectual property products, and invento- Rising interest rates and prices, along with the slower ries), and productivity, could evolve much differently growth in federal outlays after 2019 projected under than expected. In the near term, many developments, current law, restrain demand and thus keep the growth including changes in consumer or business confidence of actual GDP below the growth of potential GDP from or in international conditions and trade agreements, 2020 to 2026, in CBO’s projections. (The excess demand could make economic outcomes differ significantly from in the economy is eliminated by 2022, and actual GDP CBO’s projections. Although inflation has been low returns to a level slightly below potential GDP—the for a long time, it might rise more than CBO expects historical relationship between the two measures—by in response to excess demand over the next few years, 2024.) The higher marginal tax rates on personal income causing the Federal Reserve to raise its policy interest that follow from the expiration of temporary provisions rate more than CBO anticipates. History suggests that of the 2017 tax act at the end of calendar year 2025 also the risks of recession may increase when the economy’s contribute to the slower growth in actual GDP in 2025 growth begins to slow over the next few years, especially and 2026 because the reduction in disposable per- if, for example, households or businesses take on too sonal income restrains consumer spending (and some much debt during the current upturn. consumers change their behavior in anticipation of the rise in taxes). That slower growth, in turn, raises the Comparisons With Other Projections unemployment rate slightly and somewhat lowers short- CBO’s current economic projections differ from those term interest rates in those years. that it published in June 2017. In large part, those differences reflect recent enactment of the 2017 tax act CBO anticipates an end to that episode of slightly slower and legislation that increased projected discretionary growth by 2027. In the agency’s projections, the growth spending. In particular, CBO now anticipates a more 10 The Budget and Economic Outlook: 2018 to 2028 April 2018 Table 1-1 . CBO’s Economic Projections for Calendar Years 2018 to 2028 Annual Average Actual, 2021– 2023– 2017 2018 2019 2020 2022 2028 Percentage Change From Fourth Quarter to Fourth Quarter Gross Domestic Product Real a 2.6 3.3 2.4 1.8 1.5 1.7 Nominal 4.5 5.2 4.5 3.9 3.7 3.9 Inflation PCE price index 1.7 1.8 2.0 2.1 2.1 2.0 Core PCE price index b 1.5 1.9 2.1 2.2 2.1 2.0 Consumer price index c 2.1 2.0 2.3 2.4 2.5 2.4 Core consumer price index b 1.7 2.3 2.5 2.6 2.5 2.4 GDP price index 1.9 1.8 2.1 2.1 2.2 2.1 Employment Cost Index d 2.8 3.1 3.6 3.6 3.4 3.2 Fourth-Quarter Level (Percent) Unemployment Rate 4.1 3.5 3.3 3.8 4.6 e 4.8 f Percentage Change From Year to Year Gross Domestic Product Real a 2.3 3.0 2.9 2.0 1.5 1.7 Nominal 4.1 5.0 4.9 4.1 3.7 3.9 Inflation PCE price index 1.7 1.8 1.9 2.1 2.1 2.0 Core PCE price index b 1.5 1.8 2.0 2.2 2.2 2.0 Consumer price index c 2.1 2.2 2.2 2.4 2.5 2.4 Core consumer price index b 1.8 2.1 2.4 2.6 2.6 2.4 GDP price index 1.8 1.9 2.0 2.1 2.2 2.1 Employment Cost Index d 2.6 2.9 3.4 3.6 3.5 3.2 Annual Average Unemployment Rate (Percent) 4.4 3.8 3.3 3.6 4.4 4.8 Payroll Employment (Monthly change, in thousands) g 181 211 182 62 25 57 Interest Rates (Percent) Three-month Treasury bills 0.9 1.9 2.9 3.6 3.7 2.8 Ten-year Treasury notes 2.3 3.0 3.7 4.1 4.1 3.7 Tax Bases (Percentage of GDP) Wages and salaries 43.1 43.2 43.5 43.9 44.1 44.3 Domestic corporate profits h 8.9 9.5 9.6 9.0 8.4 8.0 Sources: Congressional Budget Office; Bureau of Economic Analysis; Bureau of Labor Statistics; Federal Reserve. Economic projections for each year from 2018 to 2028 appear in Appendix D. GDP = gross domestic product; PCE = personal consumption expenditures. a.Real values are nominal values that have been adjusted to remove the effects of inflation. b.Excludes prices for food and energy. c.The consumer price index for all urban consumers. d.The employment cost index for wages and salaries of workers in private industry. e.Value for the fourth quarter of 2022. f. Value for the fourth quarter of 2028. g.Calculated as the change in payroll employment from the fourth quarter of one calendar year to the fourth quarter of the next, divided by 12 (the average monthly amount). h.Consists of domestic profits, adjusted to remove distortions in depreciation allowances caused by tax rules and to exclude the effect of inflation on the value of inventories. CHAPTER 1: THE ECONOMIC OUTLOOK The Budget and Economic Outlook: 2018 to 2028 11 pronounced cyclical pattern of faster growth followed by and the unemployment rate remained near its low for slower growth over the first half of the projection period, the current cycle, 4.1 percent. Consumer and business as the current expansion is fortified by a fiscal policy that confidence are both high, at least in part because of expands overall demand by significantly more than it recent tax legislation. The Blue Chip consensus forecast expands overall supply in the first few years. of the growth of real GDP for 2018 published in early March was higher than the consensus forecast published CBO’s estimate of potential output has risen because at the end of last year. Those developments, along with the 2017 tax act’s changes to incentives increase poten- the expected boost to near-term growth stemming from tial GDP in the early years of the forecast period above fiscal policy, helped push the interest rate on 10-year the levels that CBO projected in June. That difference Treasury notes to a four-year high of 2.9 percent in diminishes in later years as some of the incentive effects February. of the tax changes are reversed, but potential output remains higher throughout the period than it was in the The Economic Effects of Recent agency’s June projections. As economic output returns Changes in Fiscal Policy over the projection period to its average historical level Three major pieces of legislation enacted in the past few relative to potential output, those higher estimates of months significantly changed fiscal policy and, in CBO’s potential output translate into projections of actual estimation, will have measurable economic effects. One, output that are also higher than the agency projected last the 2017 tax act, substantially altered the taxation of per- summer. sonal and business income. The second, the Bipartisan Budget Act of 2018 (P.L. 115-123), increased the caps The economic projections in this report differ some- on discretionary funding in 2018 and 2019 and provided what from those of most other forecasters. The agen- substantial funding for emergency disaster assistance. cy’s projections for 2018 and 2019 suggest a stronger The third, the Consolidated Appropriations Act, 2018 economic outlook than does the Blue Chip consensus (P.L. 115-141), provided appropriations for 2018. (the average of the roughly 50 forecasts by private-sector economists published in the March 2018 Blue Chip In CBO’s view, the effects of the tax act on incentives Economic Indicators) or the latest forecasts by Federal to work, save, and invest will raise real potential GDP. Reserve officials. Effects of the tax and spending legislation are projected to raise the level of real GDP significantly in the coming Recent Economic Developments years through fiscal stimulus, increasing real GDP by Economic conditions at the end of last year were more than they raise potential GDP in the near term. robust. The growth of real GDP, measured on a year- In CBO’s projections, those effects, as well as the larger over-year basis, had been rising for a year and a half federal budget deficits that will result from the new laws, (see Figure 1-2). Slack in the labor market, as measured put upward pressure on interest rates and prices, which by the employment gap, had almost disappeared, and tempers the increase in real output over the longer term. wage growth continued to climb gradually, although price inflation remained low. (The employment gap is Effects of the 2017 Tax Act the difference between the number of people employed CBO estimates that the new tax law will have apprecia- and an estimate of the number of people who would be ble effects on the U.S. economy (see Figure 1-3). The employed in the absence of cyclical fluctuations in the lower marginal income tax rates that will be in place for economy.) In response to the improving economic con- much of the projection period will encourage workers ditions, the Federal Reserve had raised its policy interest to work more hours and businesses to increase invest- rate—the federal funds rate (the interest rate that finan- ment in productive capital, thereby raising employment, cial institutions charge each other for overnight loans of income, and potential output. In addition, the increase their monetary reserves). in after-tax income will boost spending in the near term, boosting actual output relative to potential output. Developments so far this year suggest that actual output will continue to grow faster than potential output, as it Many of the law’s provisions are scheduled to phase out did last year. In the first two months of 2018, employ- or expire over the 2023–2026 period, so by 2028, the ment grew notably faster than its 2017 monthly average, anticipated economic effects are less pronounced but still 12 The Budget and Economic Outlook: 2018 to 2028 April 2018 Figure 1-2 . Economic Conditions at the End of 2017 1 Momentum of real GDP growth was solid, . . . 2 . . . and the employment gap was nearly closed. Percent Millions of People 4 0 3 -2 2 -4 1 -6 0 -8 2013 2014 2015 2016 2017 2013 2014 2015 2016 2017 3 Strong demand for workers was putting some upward pressure 4 . . . but consumer price inflation remained below the on wage growth, . . . Federal Reserve’s target of 2 percent. Percent Percent 3 3 2 2 1 1 0 0 2013 2014 2015 2016 2017 2013 2014 2015 2016 2017 5 The Federal Reserve had raised the federal funds rate, . . . 6 . . . and interest rates, particularly short-term rates, were rising. Percent Percent 3 3 10-Year Treasury Notes 2 2 1 1 3-Month Treasury Bills 0 0 2013 2014 2015 2016 2017 2013 2014 2015 2016 2017 Sources: Congressional Budget Office; Bureau of Economic Analysis; Bureau of Labor Statistics; Federal Reserve. Real values are nominal values that have been adjusted to remove the effects of inflation. The employment gap is the difference between the number of people employed and CBO’s estimate of the number of people who would be employed in the absence of cyclical fluctuations in the economy. Wages are measured by the employment cost index for wages and salaries of workers in private industry. Consumer price inflation is based on the price index for personal consumption expenditures. The federal funds rate is the interest rate that financial institutions charge each other for overnight loans of their monetary reserves. Data are quarterly. Real GDP growth, wage growth, and inflation are measured as percentage changes from the same quarter of the previous year. GDP = gross domestic product. CHAPTER 1: THE ECONOMIC OUTLOOK The Budget and Economic Outlook: 2018 to 2028 13 Figure 1-3 . Economic Effects of the 2017 Tax Act on Real GDP Percent 1.0 0.8 In CBO’s projections, the effect of the 0.6 2017 tax act is an increase in the level of real GDP by 0.7 percent, on average, over the 2018–2028 period. Later in the 0.4 period, the effects are tempered as some tax provisions expire and as increased 0.2 borrowing crowds out private investment. 0.0 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 Source: Congressional Budget Office. Real values are nominal values that have been adjusted to remove the effects of inflation. Percentage differences are calculated using calendar year values. GDP = gross domestic product. positive. Over the projection period, annual real GDP in Federal Deficits and the Crowding Out of CBO’s forecast is 0.7 percent higher, on average, because Private Activity of the tax law, and nonfarm employment is projected to The recent changes in fiscal policy will, in CBO’s esti- be higher by about 0.9 million jobs, on average.* (For mation, add a significant amount to the federal deficit, details on CBO’s estimates of the effects of the law, see particularly in the next few years. The agency estimates Appendix B.) that greater federal borrowing ultimately reduces private investment below what it would have been without the Effects of Federal Spending Policies additional borrowing. CBO projects a substantial increase in federal outlays in both 2018 and 2019 as a result of the Bipartisan Budget When the government borrows, it borrows from house- Act of 2018 and the Consolidated Appropriations Act, holds and businesses whose saving would otherwise be 2018. Most of that projected increase in outlays stems financing private investment. Although an increase in from higher spending for goods and services. The effects government borrowing strengthens people’s incentive to of recent spending legislation are projected to boost the save, the additional saving by households and businesses annual level of real GDP by 0.3 percent in 2018 and by is less than the increase in borrowing. The result is not 0.6 percent in 2019. Although the rise in federal spend- only reduced private investment but also lower economic ing is likely to stimulate the economy in the near term, output and national saving (that is, total saving by all it is projected to lower real GDP in later years because of the larger budget deficits that result.3 of discretionary spending that is greater for most of the 2018– 2028 period than the amounts included in the agency’s baseline 3. Those estimates of the effect of spending on real GDP are budget projections. The lower path of discretionary spending consistent with the path of discretionary spending in CBO’s implies a smaller boost to GDP in the near term, which would baseline budget projections. However, those estimates are reduce projected real GDP by about one-quarter of a percent in not fully reflected in CBO’s economic forecast. CBO had 2020 compared with CBO’s economic projections. In addition, completed that forecast before the enactment of the Consolidated real GDP would be slightly greater in later years because the Appropriations Act, 2018, which provided discretionary funding. smaller projected deficits would encourage greater private That economic forecast incorporates a preliminary projection investment. [*Value for nonfarm employment corrected on April 17, 2018] Page 1 of 1 14 The Budget and Economic Outlook: 2018 to 2028 April 2018 sectors of the economy). However, private investment averaged annually between 1981 and 2007. More than generally falls less than national saving does because the three-quarters of that difference reflects slower projected higher interest rates that result from increased federal growth of the potential labor force, which will result borrowing typically attract more foreign capital to the mainly from the ongoing retirement of baby boomers United States. and from a relatively stable labor force participation rate among working-age women.5 In CBO’s projections, the crowding out of private investment occurs gradually, as interest rates and the Provisions of the 2017 tax act contribute to a front-­ funds available for private investment adjust in response loading of potential GDP growth over the projection to increased federal deficits. In the longer term, the net period. Growth in the supply of labor and the amount of decline in national saving would tend to reduce the stock investment, in particular, are boosted over the next few of capital—and thus GDP—below what it would have years in CBO’s forecast, as reductions in effective mar- been without the increased federal borrowing. Moreover, ginal tax rates raise the desired amounts of those inputs. the additional net inflows of capital from abroad would cause more profits and interest payments to flow In CBO’s forecast, potential GDP growth is higher over overseas, leading to a greater decline in gross national the next four years than in later years of the projection product (GNP) than in GDP.4 period: Potential GDP grows by an average of 2.0 per- cent per year from 2018 to 2022 but by an average of Potential Output only 1.8 percent per year from 2023 to 2028. Growth Potential GDP is an estimate of the economy’s produc- of potential GDP in the nonfarm business sector, which tion when labor and capital are supplied and employed accounts for about 75 percent of economic activity and at their maximum sustainable levels. In CBO’s analysis, a disproportionately large share of overall economic it is the agency’s estimate of the long-term trend around growth, is projected to average about 2.3 percent per year which actual GDP fluctuates over business cycles. from 2018 to 2022; it slows to about 2.1 percent per Moreover, growth of potential GDP is the key determi- year from 2023 to 2028. nant of CBO’s current forecast of the growth of actual GDP over the 11-year projection period, because actual Potential Labor Inputs output is currently very near its potential level and is also In CBO’s projections, the contributions of labor to projected to be near its potential level at the end of the potential GDP are built up from several components. period. The potential rates at which various groups of people are expected to participate in the labor force (that is, to CBO formulates its estimate of potential GDP using work or, if unemployed, to seek work) constitute one estimates of a number of inputs, including potential component. Another is CBO’s estimate of the natural labor inputs, flows of capital services, and potential pro- rate of unemployment. And the last is the distribution of ductivity. Fiscal policy influences the agency’s projections potential workers among different sectors of the econ- of potential GDP because of the incentive and crowding omy and the potential number of hours that they could out effects that changes in policy can have. work per week. Potential output is projected to grow by an average of The Potential Labor Force. Growth of the potential 1.9 percent per year from 2018 to 2028, faster than labor force has been gradually slowing since the mid- the 1.5 percent average annual growth of potential 1970s and is generally projected to continue to slow GDP since 2008 (see Figure 1-4 and Table 1-2). Even for some time to come. In addition to the demographic though that projected growth rate is higher than the factors that are dampening growth in the labor force, rate in recent years, it is more than a percentage point long-term trends involving particular groups (such as a lower than the 3.1 percent growth that potential GDP 5. After steadily rising for decades, participation of working- age females in the labor force peaked in the late 1990s. The 4. GNP differs from GDP by including the various types of income participation rate of that group declined slightly in the wake of that residents earn from working and investing abroad and each of the last two recessions and started to rebound in 2016. excluding the income that nonresidents earn from working and CBO projects that it will essentially remain constant over the investing in the United States. coming decade. CHAPTER 1: THE ECONOMIC OUTLOOK The Budget and Economic Outlook: 2018 to 2028 15 Figure 1-4 . Determinants of the Growth of Real Potential GDP Percent 4 Potential Labor Historical Projected Force Productivity Potential 3 Labor Force 2.4 0.7 Growth in potential GDP, driven in 1.7 2.0 large part by faster productivity growth, 2 is projected to be stronger over the 1.4 next 10 years than it has been since the 2.5 1.4 1 0.9 1.4 recession that began in December 2007. 1.6 1.7 1.2 1.0 0.5 0.6 0.4 0 1950– 1974– 1982– 1991– 2002– 2008– 2018– 2023– 1973 1981 1990 2001 2007 2017 2022 2028 Source: Congressional Budget Office. Real values are nominal values that have been adjusted to remove the effects of inflation. Potential GDP is CBO’s estimate of the maximum sustainable output of the economy. Potential labor force productivity is the ratio of real potential GDP to the potential labor force, which is CBO’s estimate of the size of the labor force arising from all sources except fluctuations in the overall demand for goods and services. The bars show compound annual growth rates over the specified periods calculated using calendar year data. The sum of the determinants in each bar equals the growth of real potential GDP. GDP = gross domestic product. growing number of people with disabilities) are projected the period reflects two shifts in the composition of the to push down the overall participation rate slightly. workforce. First, the average age of workers is increasing, and older workers tend to have lower unemployment Nevertheless, CBO anticipates that several provisions of rates. Second, workers are becoming more educated, on the recent tax legislation will encourage more people to average, and more educated workers are less likely to be seek work than would have otherwise. Those incentives unemployed. CBO expects that the share of younger will slightly boost the size of the potential labor force. workers in the working-age population will continue As the labor supply adjusts to that change in incentives, to decline and that less-educated workers will continue growth in the potential labor force in CBO’s projec- to participate in the labor market at lower rates. tions rises from its average rate of about 0.5 percent per year since 2008 to an average of about 0.6 percent Potential Hours Worked. CBO concludes that the same over the 2018–2022 period. However, as some tempo- provisions of the recent tax legislation that are projected rary provisions of the legislation expire—most notably to temporarily boost the size of the potential labor force the reductions in individual income tax rates, which, will also encourage employees to seek more hours of under current law, will expire at the end of calendar year work. (See Appendix B for further discussion.) Because 2025—the size of the potential labor force is reduced. of that increase in the average number of potential As a result, growth in the potential labor force slows to hours worked per employee, the number of potential 0.4 percent per year over the 2023–2028 period. hours worked in the overall economy grows in CBO’s projections by about 0.6 percent per year over the The Natural Rate of Unemployment. In CBO’s pro- 2018–2022 period—slightly more than the growth in jections, the natural rate of unemployment—the rate the potential labor force (although rounding to the same that occurs when workers are employed at maximum percentage). That growth is up from the rate of about sustainable levels—gradually declines over the 2018– 0.5 percent that potential hours worked has averaged 2028 period, falling from slightly more than 4.6 percent annually since 2008. However, the growth of potential to just under that value. The natural rate’s decline over hours worked decelerates to less than 0.4 percent per Page 1 of 1 16 The Budget and Economic Outlook: 2018 to 2028 April 2018 Table 1-2 . Key Inputs in CBO’s Projections of Real Potential GDP Percent Projected Average Average Annual Growth Annual Growth Total, Total, 1950– 1974– 1982– 1991– 2002– 2008– 1950– 2018– 2023– 2018– 1973 1981 1990 2001 2007 2017 2017 2022 2028 2028 Overall Economy Real Potential GDP 4.0 3.2 3.4 3.3 2.4 1.5 3.2 2.0 1.8 1.9 Potential Labor Force 1.6 2.5 1.7 1.2 1.0 0.5 1.4 0.6 0.4 0.5 Potential Labor Force Productivity a 2.4 0.7 1.7 2.0 1.4 0.9 1.7 1.4 1.4 1.4 Nonfarm Business Sector Real Potential Output 4.1 3.5 3.6 3.7 2.7 1.7 3.4 2.3 2.1 2.2 Potential Hours Worked 1.4 2.3 1.8 1.3 0.3 0.4 1.3 0.5 0.3 0.4 Capital Services 3.7 3.8 3.6 3.8 2.9 1.8 3.4 2.5 2.1 2.3 Potential Total Factor Productivity 1.9 0.9 1.2 1.5 1.6 0.7 1.4 1.0 1.2 1.1 Contributions to the Growth of Real Potential Output (Percentage points) Potential hours worked 1.0 1.6 1.2 0.9 0.2 0.3 0.9 0.3 0.2 0.3 Capital input 1.1 1.2 1.2 1.3 1.0 0.7 1.1 0.9 0.7 0.8 Potential total factor productivity 1.9 0.9 1.2 1.5 1.6 0.7 1.4 1.0 1.2 1.1 Total Contributions 4.0 3.7 3.6 3.6 2.7 1.7 3.4 2.3 2.1 2.2 Potential Labor Productivity b 2.7 1.2 1.8 2.3 2.4 1.2 2.1 1.8 1.8 1.8 Source: Congressional Budget Office. Real values are nominal values that have been adjusted to remove the effects of inflation. Potential GDP is CBO’s estimate of the maximum sustainable output of the economy. The table shows compound annual growth rates over the specified periods calculated using calendar year data. GDP = gross domestic product. a.The ratio of potential GDP to the potential labor force. b.The ratio of potential output to potential hours worked in the nonfarm business sector. year in the latter part of the projection period when, at Growth is particularly strong through 2022, as businesses the end of calendar year 2025, the scheduled expiration respond to the pickup in the growth of demand for of the temporary provisions of the 2017 tax act would their output. Greater labor force participation stemming raise individual tax rates. Potential hours worked will from lower marginal tax rates on wages is likely to boost grow less rapidly in the nonfarm business sector than investment as businesses endeavor to equip the larger in the economy as a whole over the 11-year projection workforce with capital. In addition, some provisions of period, CBO projects. the recent tax legislation—for example, lower tax rates for businesses and more favorable tax treatment of depre- Flows of Capital Services ciation for equipment and some types of structures—will In the nonfarm business sector, stronger investment is also encourage investment. (By contrast, other provisions projected to boost annual growth of capital services from of the tax legislation will tend to lower investment in its average rate of 1.8 percent since 2008 to an average residential housing and reduce the growth of capital of 2.5 percent from 2018 to 2022. Following that burst services from the housing stock, but that negative effect of investment, growth in CBO’s projections eases back to is expected to be much smaller than the positive effect of an average of 2.1 percent from 2023 to 2028. tax changes on other types of investment.) CHAPTER 1: THE ECONOMIC OUTLOOK The Budget and Economic Outlook: 2018 to 2028 17 In subsequent years, growth of capital services is pro- investment and spending by state and local governments jected to slow because of several factors restraining provide positive contributions as well, but net exports investment. Slower growth of the labor supply contrib- subtract from real GDP. The slower growth of output in utes to the slower growth of capital services from 2023 to later years primarily reflects smaller contributions from 2028 in CBO’s projections. Investment is also slowed by business investment and federal spending.6 the introduction of less favorable treatment for spending on research and development in 2022. More broadly, ris- The cyclical pattern of the growth of actual output is ing federal deficits are projected to crowd out investment reflected in the changes in the output gap—the differ- throughout the next decade. ence between actual and potential GDP, expressed as a percentage of potential GDP—which is one measure Since early 2017, the Administration and the Congress of excess demand in the overall economy. In CBO’s have made several changes to regulations and the regula- projections, that gap rises to 1.2 percent next year (that tory environment that, in CBO’s judgment, should mod- is, actual GDP exceeds potential GDP by 1.2 percent), estly boost investment and therefore increase potential which is notable because the output gap has exceeded output. Those changes have affected the energy produc- 1.0 percent only three times in the past 45 years, most tion and transmission sectors, Internet service provid- recently in 2000. The gap then falls steadily to −0.6 per- ers, the financial industry, and health care markets, in cent in 2026 (that is, actual GDP falls short of potential particular. Some of the changes in regulation will reduce GDP by 0.6 percent), before it rises to its historical the cost of producing goods and providing services and average of −0.5 percent in 2027 and 2028. thereby increase returns on investment, ultimately boost- ing investment and the capital stock. Consumer Spending In CBO’s projections, real consumer spending contrib- Potential Total Factor Productivity utes 1.7 percentage points to the growth of real GDP in CBO expects growth in potential total factor produc- 2018 and 1.8 percentage points in 2019 (see Figure 1-6). tivity in the nonfarm business sector (that is, the aver- Those contributions reflect projected growth in real age real output per unit of combined labor and capital consumer spending of 2.5 percent in 2018 and 2.7 per- services in that sector) to gradually increase over the next cent in 2019, slightly slower than the 2.8 percent pace five years from the unusually low rate of around 0.7 per- in 2017 (see Table 1-3 on page 20). The main factor cent per year in recent years to about 1.2 percent per underlying that forecast is the outlook for disposable year during the 2023–2028 period. That estimate largely (after-tax) personal income, but other factors also play reflects the agency’s assessment that growth of total a role. factor productivity tends to revert to long-term historical averages over time. A slight portion of the increase in Real disposable income is projected to grow at an productivity growth results from provisions of the recent average annual rate of 4.4 percent in 2018 and 2019, tax law that are expected to encourage businesses to considerably faster than its average annual growth rate of report as domestic production the output of intellectual 1.0 percent in 2016 and 2017. That growth in real dis- property assets that were previously reported as produc- posable income is driven in part by the reduction in indi- tion abroad. vidual income tax payments stemming from the recent tax legislation. In addition, income growth is spurred Actual Output by the tightening of labor markets, as employers raise In CBO’s projections, the growth of real actual GDP wages to attract workers. In the next two years, demand (as distinct from real potential GDP) follows a marked for labor is boosted by the stimulative effects of recent cyclical path, rising notably this year, slowing during changes in fiscal policy. the next few years, and then rising to match the growth of real potential output, on average, in the last years of the projection period (see Figure 1-5). This year, 6. CBO calculates the contributions of the major components of GDP to the growth rate of real GDP by weighting their spending by consumers and businesses accounts for growth rates by their shares of nominal GDP. The sum of all the most of the projected growth of real output, but federal components’ contributions, measured in percentage points, is spending also contributes a notable amount. Residential approximately equal to the growth rate of real GDP. 18 The Budget and Economic Outlook: 2018 to 2028 April 2018 Figure 1-5 . Growth of Real GDP and Real Potential GDP and the Size of the Output Gap Percent 4 Historical Projected 1.0 3 Real GDP Over the next two years, growth in real Real Potential GDP GDP is expected to outpace growth in real 2 potential GDP, . . . 1 0 0.0 Percentage of Potential GDP 2 Historical Projected 1.0 1 . . . pushing GDP above potential GDP and raising the output gap to 1.2 percent 0 in 2019. CBO projects a return of the gap to its historical average of roughly -1 −0.5 percent by 2028. -2 -3 0.0 2013 2015 2017 2019 2021 2023 2025 2027 Sources: Congressional Budget Office; Bureau of Economic Analysis. Real values are nominal values that have been adjusted to remove the effects of inflation. Potential GDP is CBO’s estimate of the maximum sustainable output of the economy. Growth of real GDP and of real potential GDP is measured from the fourth quarter of one calendar year to the fourth quarter of the next. The output gap is the difference between historical or projected GDP and potential GDP, expressed as a percentage of potential GDP. A positive value indicates that GDP exceeds potential GDP; a negative value indicates that GDP falls short of potential GDP. Values for the output gap are for the fourth quarter of each year. GDP = gross domestic product. Other factors contribute to the projected growth of annual rate of 2.0 percent—largely because the agency consumer spending in 2018 and 2019. The large gains in expects disposable income to grow more slowly in those stock market wealth and more modest gains in housing years. The projected reduction in the growth of dis- wealth in 2017 should continue to support spending posable income stems from the waning effects of the into early 2019. Continuing optimism about employ- cuts in individual tax rates (which lower tax payments ment prospects will, in CBO’s assessment, also boost directly) and from the slower growth of labor income spending. Meanwhile, healthy consumer credit indica- that is expected to occur as economic growth slows in tors, such as low delinquencies and write-downs, will those years. In addition, the effects of past wealth gains most likely encourage further expansion of consumer will have run their course, further slowing growth in lending. consumer spending. CBO expects real consumer spending to grow more In 2026, the growth of disposable income is projected slowly during the 2020–2028 period—at an average to slow abruptly because, under current law, effective CHAPTER 1: THE ECONOMIC OUTLOOK The Budget and Economic Outlook: 2018 to 2028 19 Figure 1-6 . Real Personal Consumption Expenditures Percent 4 Actual Projected Contribution to the Growth of Real GDP (Percentage points) CBO expects the growth of real personal 3 consumption expenditures to slow modestly and contribute less to the growth of real GDP 2 over the next few years than it did last year, . . . 1 0 Percent 6 Actual Projected 4 . . . reflecting slower growth of real disposable personal income after 2018 . . . 2 0 -2 -4 Ratio 4.2 Actual Projected 3.9 . . . and slower gains in households’ wealth-to- income ratio in coming years. 3.6 3.3 3.0 2.7 0 2013 2015 2017 2019 2021 2023 2025 2027 Sources: Congressional Budget Office; Bureau of Economic Analysis; Federal Reserve. Real values are nominal values that have been adjusted to remove the effects of inflation. The bars in the top panel show the contribution of personal consumption expenditures to the growth rate of real GDP, measured from the fourth quarter of one calendar year to the fourth quarter of the next. Disposable personal income is the income that people receive minus the taxes and fees that they pay to governments. Growth of personal consumption expenditures and of disposable personal income is measured from the fourth quarter of one calendar year to the fourth quarter of the next. Households’ wealth-to-income ratio is the sum of households’ equity holdings and real estate assets, divided by households’ disposable personal income. GDP = gross domestic product. 20 The Budget and Economic Outlook: 2018 to 2028 April 2018 Table 1-3 . Projected Growth of Real GDP and Its Components Percent Annual Average Actual, 2017 2018 2019 2020 2021–2022 2023–2028 Real GDP 2.6 3.3 2.4 1.8 1.5 1.7 Components of Real GDP Consumer spending 2.8 2.5 2.7 2.0 2.0 2.0 Business investment 3.9 8.5 2.5 0.8 0.8 2.6 Business fixed investment 6.3 5.9 3.1 1.6 0.9 2.5 Residential investment 2.6 5.0 4.9 4.8 3.0 -0.2 Purchases by federal, state, and local governments 0.7 3.6 1.1 0.4 0.0 0.5 Federal 1.0 6.9 0.9 -0.5 -1.4 0.3 State and local 0.5 1.6 1.3 1.0 0.8 0.6 Exports 5.0 2.9 2.9 2.6 2.5 2.7 Imports 4.7 4.4 3.6 2.1 2.4 2.4 Memorandum: Net Exports (Change in billions of 2009 dollars) -22.8 -63.1 -41.5 -3.6 -13.7 -10.0 Source: Congressional Budget Office. Real values are nominal values that have been adjusted to remove the effects of inflation. Consumer spending consists of personal consumption expenditures. Business investment includes purchases of equipment, nonresidential structures, and intellectual property products, as well as the change in inventories. Residential investment includes the construction of single-family and multifamily structures, manufactured homes, and dormitories; spending on home improvements; and brokers’ commissions and other ownership transfer costs. Purchases by federal, state, and local governments are taken from the national income and product accounts. Net exports are exports minus imports. Data are annual. Changes are measured from the fourth quarter of one calendar year to the fourth quarter of the next. GDP = gross domestic product. personal income tax rates would rise above their previ- follow, greater investment in inventories, and the easing ous levels as the temporary individual tax cuts expire. of regulations and slowdown in new regulatory activity CBO expects that a significant portion of consumers that have occurred over the past year. In addition, invest- (particularly those who expected the lower tax rates to be ment in oil exploration and development is likely to extended) would reduce their spending in response. As a increase significantly in 2018 because oil prices are rising; result, the growth of consumer spending is also projected such investment is expected to decrease in 2019 when oil to slow that year although not by as much as the growth prices are projected to fall. With little need for busi- of disposable income. nesses to expand capacity at an even more rapid rate and with oil-related investment slowing, growth in real Business Investment business investment is projected to slow to 2.5 percent in In CBO’s forecast, real business investment adds a 2019—a pace that is still faster than the growth rate of substantial 1.1 percentage points to the growth of real real GDP. GDP in 2018 but only 0.3 percentage points in 2019 (see Figure 1-7). Real business investment grows by Reductions in tax rates and changes in other tax pro- 8.5 percent in 2018, significantly more than it increased visions that took effect in 2018 will raise the stock of in 2017. capital that businesses desire to serve their customers: Such changes in tax policy affect the capital stock in Robust growth of investment spending expected in two ways—they boost after-tax returns on capital over 2018 reflects a number of factors—for example, the the decade, and they boost the supply of labor over the increased incentives to invest stemming from lower tax next few years. Together those incentives will prompt rates, the pickup in GDP growth that is expected to new investment as businesses seek to increase the capital CHAPTER 1: THE ECONOMIC OUTLOOK The Budget and Economic Outlook: 2018 to 2028 21 Figure 1-7 . Real Business Investment Percent 12 1.0 Actual Projected 10 8 In CBO’s projections, the growth in real Contribution to the business investment rises substantially this 6 Growth of Real GDP year and then slows, . . . (Percentage points) 4 2 0 0.0 Percent 4 Actual Projected 3 . . . in part because slower growth in the output of nonfarm businesses causes them 2 to need less additional capacity to meet demand for their goods and services. 1 0 2013 2015 2017 2019 2021 2023 2025 2027 Sources: Congressional Budget Office; Bureau of Economic Analysis. Real values are nominal values that have been adjusted to remove the effects of inflation. Business investment includes purchases of equipment, nonresidential structures, and intellectual property products, as well as the change in inventories. Growth of business investment is measured from the fourth quarter of one calendar year to the fourth quarter of the next. The bars in the top panel show the contribution of business investment to the growth rate of real GDP, measured from the fourth quarter of one calendar year to the fourth quarter of the next. The demand for businesses’ goods and services is represented by the annual average growth rate of the real output of the nonfarm business sector over the current and previous two years. The nonfarm business sector produces about three-quarters of the nation’s output. GDP = gross domestic product. available to each worker and to equip new workers. In to 2028, real business investment is estimated to grow at addition, in the near term, increased demand for goods an average annual rate of 2.6 percent, still significantly and services in the economy will prompt new produc- faster than the growth rate of real GDP. That projected tion, requiring further investment in capital. difference is attributable primarily to the expectation that prices for capital will increase more slowly than prices Slowing GDP growth after 2019 is projected to erode in the economy as a whole, continuing a trend that has the need for businesses to expand their capacity, induc- made capital more affordable. Nominal business invest- ing a sharp slowdown in the growth of real business ment is expected to grow at roughly the same rate as investment during the 2020–2022 period. From 2023 nominal GDP during those years. 22 The Budget and Economic Outlook: 2018 to 2028 April 2018 Figure 1-8 . Real Government Purchases Percent 4 Actual Projected Contribution to the Growth of Real GDP 2 (Percentage points) CBO projects growth in real purchases 0 by federal, state, and local governments to be rapid this year because of recent changes in federal spending policies. -2 -4 2013 2015 2017 2019 2021 2023 2025 2027 Sources: Congressional Budget Office; Bureau of Economic Analysis. Real values are nominal values that have been adjusted to remove the effects of inflation. Government purchases are the purchases of goods and services by federal, state, and local governments that are included in GDP. Growth of government purchases is measured from the fourth quarter of one calendar year to the fourth quarter of the next. The bars show the contribution of government purchases to the growth rate of real GDP, measured from the fourth quarter of one calendar year to the fourth quarter of the next. The Bipartisan Budget Act of 2018 increased limits on discretionary funding for fiscal years 2018 and 2019, but it did not provide such funding. Because CBO completed its economic forecast before the enactment of the Consolidated Appropriations Act, 2018, its economic forecast incorporated a preliminary projection of discretionary spending. For most of the 2018–2028 period, that projection incorporated more discretionary spending than is included in CBO’s baseline budget projections. Relative to that preliminary path, the lower path of discretionary spending would imply a smaller contribution of government purchases to growth in real GDP in the near term, particularly in 2019. In later years, the contribution would be roughly unchanged. GDP = gross domestic product. Government Purchases In CBO’s forecast, real federal purchases of goods and Purchases of goods and services by federal, state, and services increase by 6.9 percent in 2018 and by 0.9 per- local governments would, under current law, be a sig- cent in 2019. In CBO’s 11-year projections, real federal nificant contributor to the growth of the economy this purchases fall by an average of almost 1 percent per year year (see Figure 1-8). In CBO’s projections, they add from 2020 to 2023 and grow modestly through the rest 0.6 percentage points in 2018 and 0.2 percentage points of the projection period, reflecting the existing caps on in 2019 to the growth of real GDP. Real purchases by discretionary funding through fiscal year 2021 and the federal, state, and local governments expand by a robust assumption that funding will grow at the rate of inflation 3.6 percent in 2018 and by 1.1 percent in 2019. In thereafter. CBO’s projections, real government purchases increase slightly from 2020 through 2023 and then grow at an State and local governments are expected to increase average annual rate of 0.6 percent from 2024 to 2028.7 spending in response to economic expansion and the 7. The Bipartisan Budget Act of 2018 increased limits on period, that projection incorporated more discretionary spending discretionary funding for fiscal years 2018 and 2019, but it did than is included in CBO’s baseline budget projections. Relative not provide such funding. Because CBO completed its economic to that preliminary path, the lower path of discretionary spending forecast before the enactment of the Consolidated Appropriations would imply a smaller contribution of government purchases to Act, 2018, its economic forecast incorporated a preliminary growth in real GDP in the near term, particularly in 2019. In projection of discretionary spending. For most of the 2018–2028 later years, the contribution would be roughly unchanged. CHAPTER 1: THE ECONOMIC OUTLOOK The Budget and Economic Outlook: 2018 to 2028 23 Figure 1-9 . Real Residential Investment Percent 12 Actual Projected 10 Contribution to the 8 Growth of Real GDP CBO expects the growth of real residential (Percentage points) investment to be faster over the next few years 6 than it was last year and to contribute slightly 4 more to the growth of real GDP, . . . 2 0 -2 0.0 Millions of Households 2.0 1.0 Actual Projected 1.5 . . . in part because the average pace of 1.0 household formation is projected to be faster than it was in the past decade. 0.5 0 0.0 2013 2015 2017 2019 2021 2023 2025 2027 Sources: Congressional Budget Office; Bureau of Economic Analysis. Real values are nominal values that have been adjusted to remove the effects of inflation. Residential investment includes the construction of single- family and multifamily structures, manufactured homes, and dormitories; spending on home improvements; and brokers’ commissions and other ownership transfer costs. Growth of residential investment is measured from the fourth quarter of one calendar year to the fourth quarter of the next. The bars in the top panel show the contribution of residential investment to the growth rate of real GDP, measured from the fourth quarter of one calendar year to the fourth quarter of the next. Household formation is the change in the number of occupied housing units from the fourth quarter of one calendar year to the fourth quarter of the next. GDP = gross domestic product. resulting increases in the demand for government ser- Residential investment vices and in state and local government revenues. Greater CBO expects residential investment to contribute federal funding for emergency disaster assistance also 0.2 percentage points to the growth of real GDP in is expected to modestly boost gross investment by state each of the first three years of the projection period (see and local governments in the near term as they spend Figure 1-9). The growth of real residential investment on reconstruction efforts related to last year’s hurricanes is estimated to rise to 5.0 percent in 2018, slowing only and wildfires. In CBO’s projections, the annual growth slightly over the subsequent two years, to 4.8 percent rate of real state and local purchases is 1.6 percent in in 2020. That outlook reflects continuing strength in 2018 and then declines—to 1.3 percent in 2019 and to household formation, favorable developments in the 1.0 percent in 2020—before settling at 0.6 percent in mortgage market, and recent tax changes. 2024, roughly the rate of population growth. 24 The Budget and Economic Outlook: 2018 to 2028 April 2018 An important factor underlying CBO’s forecast is the Imports and Exports expected pace of household formation, or the net change In CBO’s projections, real imports of goods and ser- in the total number of occupied housing units. With the vices increase rapidly in 2018 and 2019 but then rise tightening labor market translating into higher employ- at a more moderate pace from 2020 through 2028 (see ment and faster growth in compensation, CBO expects Figure 1-10). Real exports of goods and services, by con- the rate of household formation over the next few years trast, grow at a steady rate over the next 11 years. Real to remain close to the 1.2 million per year it averaged net exports—the difference between real exports and real from 2014 to 2017. During those four years, household imports—are projected to reduce growth in real GDP formation recovered from a period of unusually slow by 0.3 percentage points in 2018 and by 0.2 percentage growth that lasted from 2006 to 2013 and contributed points in 2019. That contribution becomes less negative to the concurrent sharp decline in residential investment. in later years and is roughly zero in the last half of the The continuing growth in the number of households projection period. That outlook reflects CBO’s projec- is expected to motivate builders to build more hous- tions of the growth of domestic purchases of goods and ing in order to bring the number of new homes being services, foreign economic activity, and the exchange constructed further into alignment with the growth in value of the dollar. households. Real imports grow by 4.4 percent in 2018 and by CBO forecasts that mortgage-lending standards will 3.6 percent in 2019 in CBO’s projections. Growth in continue to ease during much of the projection period, domestic purchases of goods and services is projected further encouraging stronger investment in housing to exceed growth in output during those two years, and despite projected higher mortgage rates in the near term. the volume of imports is anticipated to help meet that Lending standards for mortgages had remained tighter demand. After 2019, real import growth slows with the for longer than those in other credit markets. deceleration of domestic purchases in CBO’s forecast, although it continues to outpace those purchases, as it Recent changes in the tax code made by the 2017 tax act has in recent years. will hold down the growth of residential investment over the next few years, CBO estimates. A higher standard After a strong year in 2017, real export growth is pro- deduction for personal income taxes will reduce by more jected to fall to 2.9 percent in 2018 and 2019. Real than 50 percent the number of households who find it exports are expected to grow at a similar pace from 2020 advantageous to itemize their deductions. Households through 2028 in response to the steady growth of foreign that do not itemize will not receive an explicit tax sub- economic activity and a slight reduction in the exchange sidy for homeownership. For homeowners who continue value of the dollar, which would maintain growth in to itemize their deductions, the after-tax cost of owning demand for U.S. exports. a home will rise because of limitations on the amounts of property taxes and mortgage interest payments that can The projected decline in the exchange value of the dollar be deducted. In the longer term, residential investment modestly slows import growth and boosts export growth will benefit when the tax changes discouraging home- over the projection period, in the agency’s estimation. ownership end in 2026. The trade-weighted exchange value of the dollar fell by nearly 5 percent in 2017, reflecting strong economic Because its cycle has lagged behind that of the economy growth among U.S. trading partners (particularly in the as a whole, residential investment is expected to slow euro zone) and expectations that those countries would less markedly than other parts of the economy between tighten their monetary policies. The value of the dollar 2020 and 2023. In the agency’s projections, the rate of is projected to remain stable over the next year and to growth in real residential investment slows to 3.1 percent decline slightly thereafter. That assessment reflects the in 2021, to 3.0 percent in 2022, and to 1.5 percent in expectation that an increase in demand for foreign assets 2023. Thereafter, real spending on residential investment caused by steady economic growth of the United States’ declines modestly as slower population growth curtails major trading partners would roughly offset the increase household formation. in demand for dollar-denominated assets caused by rising CHAPTER 1: THE ECONOMIC OUTLOOK The Budget and Economic Outlook: 2018 to 2028 25 Figure 1-10 . Real Imports and Real Exports Percent 8 Actual Projected Growth in real imports is expected to be 6 rapid this year and next and to moderate in Real Imports Real Gross later years, reflecting the pace in growth in Domestic Purchases 4 real gross domestic purchases. 2 0 Percent 6 Actual Projected Foreign GDP Real Exports CBO’s forecast of growth in real exports 4 reflects the agency’s forecast of relatively stable average real GDP growth of the 2 United States’ major trading partners . . . 0 -2 -4 Index, 1970 = 1 2.0 Actual Projected 1.9 . . . and CBO’s expectation that the exchange 1.8 value of the U.S. dollar will decline slightly. 1.7 1.6 1.5 1.4 0 2013 2015 2017 2019 2021 2023 2025 2027 Sources: Congressional Budget Office; Bureau of Economic Analysis. Real values are nominal values that have been adjusted to remove the effects of inflation. Gross domestic purchases are the sum of personal consumption expenditures, gross private domestic investment, and government consumption expenditures and gross investment. Growth is measured from the fourth quarter of one calendar year to the fourth quarter of the next. The average growth rate of real GDP of the United States’ major trading partners is calculated using an average of individual countries’ rates of growth of real GDP, weighted by their shares of U.S. exports. The trading partners included in the average are Australia, Brazil, Canada, China, Hong Kong, India, Japan, Mexico, Singapore, South Korea, Taiwan, the United Kingdom, and the countries of the euro zone. Growth is measured from the fourth quarter of one calendar year to the fourth quarter of the next. The exchange value of the U.S. dollar is an index of the export-weighted average of exchange rates between the dollar and the currencies of the United States’ major trading partners. A higher value indicates a stronger dollar. GDP = gross domestic product. 26 The Budget and Economic Outlook: 2018 to 2028 April 2018 federal borrowing and rising interest rates in the United participation down, and the ongoing economic recovery, States. which has been gradually pushing actual participation up. The same balance of forces is projected to keep the Throughout the 2018–2028 period, nominal net exports participation rate at an average of 62.8 percent through are negative. Relative to GDP, that deficit shrinks after 2020. The long-term factors pushing the rate down are 2019. In CBO’s projections, the trade deficit grows from expected to be largely offset by continued improvement 3.0 percent of GDP at the end of 2017 to 3.4 percent of in hiring, as solid employment growth and rising wages GDP by the end of 2019. From the end of 2020 through draw some workers back into the labor force and keep the end of 2028, it decreases from 3.3 percent of GDP to others from leaving. 2.8 percent of GDP. After 2020, demographic pressures predominate in The Labor Market CBO’s projections, gradually pushing the actual and CBO’s projections of the labor market reflect its pro- potential participation rates down to about 61 percent jections of actual output. With actual GDP greater by 2028. By 2028, CBO projects the actual participation than potential GDP in the near term in the agency’s rate to settle at roughly 0.1 percentage point below the forecast, employment and participation in the labor potential rate, which is the agency’s estimate of the long- market are above their maximum sustainable amounts term relationship between the two rates. and the unemployment rate is below the natural rate (see Figure 1-11). In turn, the positive employment gap Unemployment leads to more rapid growth in hourly compensation. In Growth of the demand for goods and services in 2018 subsequent years, employment—following that path of and 2019 lowers the unemployment rate in CBO’s pro- output—increases less rapidly, and the unemployment jections to 3.3 percent in 2019—0.8 percentage points rate rises steadily until it slightly exceeds the natural rate. below the 4.1 percent recorded in the fourth quarter of Because of that slower growth in employment, rates of 2017 and about 1.3 percentage points below the agency’s hourly compensation rise more slowly, and real hourly estimate of the natural rate. As growth in demand slows compensation in the nonfarm business sector grows in after 2019, the unemployment rate rises to 3.6 percent line with that sector’s labor productivity during the later in 2020 and then to 4.6 percent—which is CBO’s years of the projection period. The labor force participa- estimate of the natural rate for the entire projection tion rate begins to fall in 2021 and returns to the under- period—in 2022. The unemployment rate increases to lying downward trend that is rooted in demographic 4.8 percent in 2023 and remains there throughout most patterns. of the rest of the projection period: There is a slight uptick to 4.9 percent in 2026 as spending slows in the Employment face of the increase in personal tax rates scheduled under In CBO’s forecast, nonfarm payroll employment current law. That unemployment rate is about one-­ increases by 211,000 jobs per month in 2018—com- quarter of a percentage point more than the natural rate, pared with 181,000 jobs per month in 2017—reflecting which is CBO’s estimate of the long-term relationship the strong demand for labor arising from the growth between the two. in output. In subsequent years, however, the slowing growth of demand slows the growth of employment. Hourly Compensation Payroll employment expansion averages 62,000 jobs in The continued growth in demand for workers in the 2020 but slows to an average of only 30,000 jobs per early years of the projection period is expected to boost month between 2021 and 2023. After 2023, the pace the growth of hourly compensation. In a tight labor of employment picks up, in step with the growth of real market, businesses must compete harder for scarce labor, GDP, and reaches 66,000 jobs per month in 2028. bidding up wages to retain existing workers and attract new ones. Wage rates, as measured by the employment Labor Force Participation cost index (ECI) for workers in private industry, have The labor force participation rate has hovered around been growing a little faster each year since 2011, and 62.8 percent since 2014. That nearly constant rate since 2014 there has been an increase in the pace of reflects a balance between demographic forces, which those gains that corresponds to a reduction of slack in have been gradually pushing potential and actual the labor market. CHAPTER 1: THE ECONOMIC OUTLOOK The Budget and Economic Outlook: 2018 to 2028 27 Figure 1-11 . The Labor Market 1 In CBO’s projections for the near term, output growth boosts the 2 . . . pushing the labor force participation rate above CBO’s estimated employment gap, . . . estimate of the potential rate and . . . Millions of People Percent 4 68 Historical Projected Historical Projected 2 66 0 Potential Labor Force 64 Participation Rate -2 62 -4 Labor Force 60 Participation Rate -6 -8 0 58 2013 2015 2017 2019 2021 2023 2025 2027 2013 2015 2017 2019 2021 2023 2025 2027 3 . . . driving the unemployment rate below CBO’s estimate of 4 The demand for labor puts upward pressure on growth in wages. the natural rate. Percent Percent 8 5 Actual Projected Historical Projected Natural Rate of 4 6 Unemployment 3 4 2 Unemployment Rate 2 1 0 0 2013 2015 2017 2019 2021 2023 2025 2027 2013 2015 2017 2019 2021 2023 2025 2027 Sources: Congressional Budget Office; Bureau of Labor Statistics. The employment gap is the difference between the number of employed people and the number who would be employed in the absence of fluctuations in the overall demand for goods and services. The labor force participation rate is the percentage of people in the civilian noninstitutionalized population who are at least 16 years old and either working or seeking work. The potential labor force participation rate is the rate that CBO estimates to arise from all sources except fluctuations in the overall demand for goods and services. The unemployment rate is the number of jobless people who are available for and seeking work, expressed as a percentage of the labor force. The natural unemployment rate is CBO’s estimate of the rate of unemployment arising from all sources except fluctuations in the overall demand for goods and services. Wages are measured by the employment cost index for wages and salaries of workers in private industry. Growth in wages is measured from the fourth quarter of one calendar year to the fourth quarter of the next. For the labor force participation and unemployment rates, data are fourth-quarter values. The ECI for wages and salaries of workers in private 2.6 percent in 2017. Other measures of labor compen- industry is projected to grow by 3.1 percent in 2018, by sation, including average hourly earnings for production 3.6 percent in 2019, and by 3.6 percent in 2020. Those and nonsupervisory workers in private industry, are like- rates are all appreciably higher than the 2.8 percent wise expected to grow more quickly than in recent years. growth recorded in 2017. When benefits are included, the ECI for total compensation of workers in private As the tightness in the labor market dissipates later in the industry is projected to grow by 3.5 percent, 3.7 percent, projection period and the unemployment rate rises to a and 4.0 percent in those years, whereas it grew by only level just above the natural rate, growth rates of hourly 28 The Budget and Economic Outlook: 2018 to 2028 April 2018 Figure 1-12 . Inflation Percent 3 Actual Projected 1 Core 2 Overall For several years, in CBO’s projections, excess demand drives inflation above the Federal Reserve’s target rate of 2 percent. 1 0 0 2013 2015 2017 2019 2021 2023 2025 2027 Sources: Congressional Budget Office; Bureau of Economic Analysis. Excess demand exists when the demand for goods and services exceeds the amount that the economy can sustainably supply. The overall inflation rate is based on the price index for personal consumption expenditures; the core rate excludes prices for food and energy. Inflation is measured from the fourth quarter of one calendar year to the fourth quarter of the next. compensation are expected to ease. In the later years of Inflation, as measured by both PCE price indexes, falls the projection period, real hourly compensation grows back to 2.0 percent in 2024 and remains at that rate for with labor productivity. The growth of the ECI for wages the rest of the projection period. and salaries of workers in private industry settles at an annual rate of 3.1 percent by 2026 in CBO’s projections, The temporary factors that held down inflation in and the broader measure of total compensation in private recent years are expected to dissipate either completely industry grows at an annual rate of about 3.5 percent. or partially in the next few years. They include a one- time price reduction in telecommunication services; the Inflation strong dollar, which has depressed the growth of prices Inflation picks up in the next few years in CBO’s fore- on imported goods; and the slow growth of Medicare’s cast, as upward price pressure develops because of excess reimbursement rates, which has held down inflation demand in the economy. The core price index for per- in the costs of health care services as measured by the sonal consumption expenditures (PCE, which excludes PCE price index. In addition, a tight labor market and food and energy prices) rises by 1.9 percent in 2018 and excess domestic demand are expected to exert upward by 2.1 percent in 2019—considerably more than the pressure on wages and prices. 1.5 percent it rose in 2017 (see Figure 1-12). The overall PCE index also increases more rapidly in coming years, In CBO’s projections, that upward pressure on prices reaching the Federal Reserve’s target rate of 2.0 percent is largely offset by tighter monetary policy, supported by early 2019. Between 2019 and 2023, the PCE price by market participants’ expectations that inflation will index grows by an average of 2.1 percent each year, remain low and stable. The Federal Reserve is expected and the consumer price index for all urban consumers (CPI-U) grows by an average of 2.5 percent annually.8 similar goods and services when relative prices change and because, unlike the CPI-U, it is little affected by statistical bias 8. The chained CPI-U, an alternative measure of price inflation related to the sample sizes that the Bureau of Labor Statistics faced by urban households, is projected to grow by an average of uses in computing each index. Historically, inflation as measured 2.2 percent per year between 2020 and 2023 and by 2.1 percent by the chained CPI-U has been 0.25 percentage points lower, annually thereafter. The chained CPI-U tends to grow more on average, than inflation as measured by the CPI-U. CBO’s slowly than the standard CPI-U because it uses a formula that projections reflect that average difference between the two better accounts for households’ tendency to substitute among measures. Page 1 of 1 CHAPTER 1: THE ECONOMIC OUTLOOK The Budget and Economic Outlook: 2018 to 2028 29 to raise interest rates to prevent inflation from substan- In CBO’s projections, the interest rate on 3-month tially exceeding its target. A variety of survey-based and Treasury bills rises from 1.2 percent in the fourth quarter market-based measures of long-run inflation expectations of 2017 to 3.8 percent by early 2021. Meanwhile, the support the notion that people expect that the Federal interest rate on 10-year Treasury notes increases from Reserve will succeed. Because inflation expectations its average of 2.4 percent in the latter part of 2017 to influence how prices and wages are set in markets for 4.3 percent by the middle of 2021. From 2024 to 2028, goods and services and in labor markets, expectations of the interest rate on 3-month Treasury bills averages low and stable inflation act like an anchor on inflation. 2.7 percent, and the rate on 10-year Treasury notes, 3.7 percent. In those years, the real interest rate on Monetary Policy and Interest Rates 10-year Treasury notes (that is, the rate after the effect of CBO expects the Federal Reserve to respond to the expected inflation, as measured by the CPI-U, has been increase in the output gap and in inflation over the next removed) is 1.3 percent—well above the current real rate few years by continuing to raise the federal funds rate but more than 1 percentage point below the average real (see Figure 1-13). In CBO’s forecast, the federal funds rate between 1990 and 2007. (The 1990–2007 period is rate reaches 2.4 percent in the fourth quarter of 2018, useful for comparison because there were no severe eco- rises to 3.4 percent by the end of 2019, and then peaks nomic downturns or financial crises during those years at 4.0 percent in 2021. After 2021, the Federal Reserve and because expectations at the time were that inflation reduces the federal funds rate as the economy slows, and would remain fairly stable.) the rate reaches 3.0 percent by mid-2024. From mid- 2025 through 2026, the Federal Reserve is projected Average real interest rates on Treasury securities are to reduce the rate slightly in anticipation of the slower projected to be lower over the projection period than growth stemming from the expiration of the cuts in the they were between 1990 and 2007 for several reasons: personal income tax the following year. slower growth in the labor force, slightly slower growth of productivity, an increase in the share of income going In the agency’s projections, interest rates on government to high-income households (which tends to increase debt are influenced not only by the increases in the saving), investors’ increased preference for Treasury secu- output gap and in the rate of inflation over the next few rities over riskier assets, and greater net inflows of capital years but by longer-term factors as well. Throughout the from abroad (measured as a percentage of GDP) than in projection period, rising federal debt relative to GDP that earlier period. Other factors are projected to drive exerts upward pressure on short- and long-term interest real interest rates up, including a larger amount of federal rates. In addition, long-term interest rates are projected debt relative to GDP, a larger number of older people to rise gradually relative to short-term interest rates as who will be drawing down their savings, and a larger the term premium (the premium paid to bondholders share of income going to capital. On balance, the factors for the extra risk associated with holding longer-term pushing long-term rates below their previous averages bonds) moves up from its recent low levels. Various outweigh the factors that put upward pressure on them. factors—investors’ heightened concern about relatively weak global economic growth and the increased demand Income for long-term Treasury securities as a hedge against Projections of federal revenues depend on aggregate unexpected declines in inflation, for example—have income—the total amount of income in the economy— pushed the term premium downward over the past few and on the way it is distributed among various catego- years. Those factors have begun to dissipate, and CBO ries, such as labor income, domestic corporate profits, expects that decline to contribute to the rise in the rate proprietors’ income, and interest and dividend income. on 10-year Treasury notes over the next several years. CBO therefore projects income in those categories over In addition, CBO expects the ongoing reduction in the the next 11 years, estimating each category’s share of Federal Reserve’s portfolio of long-term assets to con- GDP. The categories that affect revenues most strongly tribute to the increase in the term premium over the are labor income (especially wage and salary payments) next few years. Although in CBO’s projections, the term and domestic corporate profits. Increases in U.S. borrow- premium rises throughout the 11-year period, it does so ing from abroad imply that a greater share of domesti- gradually and remains below its historical value. cally generated income will flow to foreign investors. 30 The Budget and Economic Outlook: 2018 to 2028 April 2018 Figure 1-13 . Interest Rates Percent 5 Actual Projected 4 3 CBO expects the Federal Reserve to continue increasing the federal funds rate 2 through 2021 to eliminate excess demand in the economy. 1 0 Percent 5 Actual Projected 1 10-Year Treasury Notes 4 In CBO’s projections, interest rates on 3 Treasury securities also rise, influenced by increases in the federal funds rate and 3-Month Treasury Bills in federal borrowing. 2 1 0 0 2013 2015 2017 2019 2021 2023 2025 2027 Sources: Congressional Budget Office; Federal Reserve. The federal funds rate is the interest rate that financial institutions charge each other for overnight loans of their monetary reserves. Excess demand exists when the demand for goods and services exceeds the amount that the economy can sustainably supply. Data are fourth-quarter values. Labor Income Even though labor income as a share of GDP rises in In CBO’s projections, labor income grows fairly steadily CBO’s projections over the next decade, it remains as a share of GDP over the period (see Figure 1-14). affected by factors that have notably depressed that share Labor income measured as a share of GDP in 2018 since 2000. One such factor is globalization, which has is slightly above 57.2 percent, a little more than the tended to move the production of labor-intensive goods 57.0 percent recorded for 2017. It continues to climb, and services to countries with lower labor costs. Another in CBO’s projections, reaching 58.6 percent in 2022, factor is technological change, which appears to have reflecting a tight labor market that improves workers’ increased returns on capital more than returns on labor. bargaining power, raises compensation per hour, and reduces the share of income that goes to domestic Domestic Corporate Profits corporate profits. After 2022, when the unemployment Domestic corporate profits, which equaled an estimated rate exceeds CBO’s estimate of the natural rate, the 9.0 percent of GDP in 2017, rise in CBO’s projec- growth of hourly compensation slows. Nevertheless, tions to 9.8 percent of GDP in 2018. (Profits’ share of labor income as a share of GDP continues to rise, albeit GDP increases despite the slight rise in labor income’s at a slower pace than before, reaching 59.2 percent share in 2018 because other major components of in 2028. national income, such as interest income, rental income, Page 1 of 1 CHAPTER 1: THE ECONOMIC OUTLOOK The Budget and Economic Outlook: 2018 to 2028 31 Figure 1-14 . Labor Income Percentage of GDP 60 Historical Projected 59 58 Because of tighter labor markets in the 57 near term, labor income is projected to increase as a share of GDP over the projection period. 56 55 0 2013 2015 2017 2019 2021 2023 2025 2027 Sources: Congressional Budget Office; Bureau of Economic Analysis. Labor income is the sum of employees’ compensation and CBO’s estimate of proprietors’ income that is attributable to labor. Data are fourth-quarter values. GDP = gross domestic product. proprietors’ income, and depreciation, fall as a share of income is projected to fall from 0.9 percent of GDP to GDP.) In subsequent years, domestic corporate profits’ roughly 0.4 percent. As a result, in CBO’s projections, share of GDP is projected to fall, down to 8.0 percent by GNP grows about 0.1 percentage point less per year than 2028. That decline occurs largely because labor com- GDP grows over the 2018–2028 period. pensation is expected to rise as a share of GDP but also because corporate interest payments are projected to Net international income is expected to fall over the next increase as a result of higher interest rates.9 11 years for two reasons. First, under current law, in CBO’s projections, the amount of net borrowing from Domestic Income Earned by Foreign Investors foreigners to finance domestic investment increases, as Over the next 11 years, U.S. national income (the do federal budget deficits. For all but one of the past income that accrues to U.S. residents as measured by 35 years, the United States has been a net borrower on GNP) is projected to grow at a slightly slower pace than world capital markets and thus its net international income from U.S. domestic production (as measured by lending (national saving minus domestic investment) GDP). GNP is a better measure of the income available has been negative, on average.10 In CBO’s forecast, net to U.S. residents because it includes net international international lending declines from –2.5 percent of GDP income flows—the income that U.S. residents earn from in the 2015–2017 period to an average of –3.5 percent working and investing abroad minus the income that from 2018 to 2028. The second reason is that U.S. bor- nonresidents earn from working and investing in the rowing from abroad becomes more expensive as interest United States. From 2018 to 2028, net international rates rise in the United States. 9. Under the 2017 tax act, new limits on the amount of interest payments that can be deducted mean that corporate borrowing no longer receives more favorable treatment than equity issuance. 10. A country is a net borrower if it saves less than it invests. The As a result, corporate borrowing and interest payments are difference reflects a net inflow of foreign investment. In the U.S. expected to rise by less than they otherwise would have, and national income and product accounts, the balance is known domestic corporate profits are projected to be larger than they as net lending to the rest of the world. Since 1983, U.S. net otherwise would have been. international lending has averaged –2.7 percent of GDP. Page 1 of 1 32 The Budget and Economic Outlook: 2018 to 2028 April 2018 Uncertainty Surrounding the if the incentive effects of the tax changes are smaller than Economic Outlook the agency expects. Economic projections are inherently uncertain, but CBO’s current projections are particularly so because Another policy-related source of uncertainty in CBO’s they incorporate several estimates of the effects of recent projections of output is the effect recent regulatory changes to fiscal policy, which are themselves very uncer- changes have on investment. For instance, deregulation tain. For instance, the agency’s estimates of the effects of could contribute to increases in total factor productivity those changes depend on estimates of how incentives, by encouraging more entrepreneurial activity and inno- crowding out, and changes to economic activity affect vation and by reducing the time that current workers business investment. (See Appendix B for more detail.) spend on activities to document compliance with regu- lations. The regulatory changes could have more, or less, The agency attempts to construct its 11-year economic favorable implications for investment decisions, the labor projections so that they fall in the middle of the dis- supply, and productivity than CBO has built into its tribution of possible outcomes, given the fiscal policy projections. Nevertheless, the effects are estimated to be embodied in current law and the available economic modest relative to the size of the economy, and research data. Nevertheless, output, inflation, or interest rates on the relative importance of those factors or on the size could still turn out to be higher or lower than they are in of the changes is inconclusive. CBO’s projections. The fundamental factors and long- term trends that CBO uses to frame its economic pro- Discrepancies between the actual values and CBO’s jections become increasingly uncertain over the longer projected values of a few key determinants of output term, but temporary fluctuations in economic activity could result in GDP growth that is faster or slower contribute more to the uncertainty of the projections in than the agency projected, for reasons unrelated to the near term. policy. If the labor force grew more quickly than antic- ipated—because, say, older workers chose to stay in the Uncertainties in CBO’s Long-Term Projections labor force longer than expected—the economy could Some of the uncertainty about future output is associ- grow more quickly than it does in CBO’s projections. ated with the longer-run effects of recent policy changes, By contrast, if the growth rate of labor productivity but uncertainty also arises in long-run projections of does not rise above its average postrecession pace, as it size of the labor force, productivity, and national saving, does in CBO’s projections, the growth of GDP might regardless of any changes in policy. Uncertainty about all be weaker than the agency projected. That growth also those factors contributes to the uncertainty surrounding could be weaker than projected if, for example, net flows long-term interest rates. of immigration were lower than expected, which would reduce the growth of the labor supply below the agency’s The long-term economic effects of the 2017 tax act are current projections. particularly uncertain. CBO’s estimates of the responses of households and businesses to changes in incentives Real interest rates, which have a significant effect on to work and invest are based on the agency’s assessment government interest payments, are a major source of of the effects of similar policies in the past, but none of uncertainty over the longer term. Policy and nonpolicy those previous episodes is a perfect guide to the future. factors contribute to that uncertainty. Global real interest For example, many of the recent tax provisions that rates have been unusually low, for reasons that are not affect individuals and businesses are scheduled to change fully understood, and the trajectories of those rates are during the projection period. As a result, CBO had to equally uncertain. Many factors—population growth estimate how individuals and businesses might react rates, global saving, the growth rate of productivity, and to the scheduled shifts in policy on the basis of historical federal borrowing, to name a few—affect long-term evidence. The forecast for output growth could be under- interest rates, and CBO’s projections of some or all of stated if capital investment and the labor supply increase those factors could be too high or too low. more than CBO anticipates in response to changes in the tax code. Conversely, output growth could be overstated CHAPTER 1: THE ECONOMIC OUTLOOK The Budget and Economic Outlook: 2018 to 2028 33 Uncertainties in CBO’s Near-Term Projections of commodities or if changes were made to tariffs or Over the near term, many developments—such as trade arrangements. But inflation also could remain sub- unforeseen changes in the labor market, the housing dued for longer than the agency expects if some of the market, business confidence, or international condi- temporary factors that have held down inflation in recent tions—could make economic growth and other variables years end up being more permanent than CBO antici- differ from what CBO has projected. Unanticipated pates (reflecting deeper structural shifts in certain sectors, responses to the recent changes in fiscal policy are such as health care and retail). another significant source of uncertainty in CBO’s pro- jections over the next few years. Changes to trade agree- CBO projects a soft landing for the economy—in which ments or tariff policies on the part of the United States the output gap closes through slower, but still positive, and its trading partners that impede trade could have economic growth—but there is nevertheless a risk of significant adverse effects on aggregate economic activity, recession. That risk does not stem from the duration of whereas the removal of trade barriers between the United the current economic expansion, even though it has lasted States and its trading partners could improve aggregate more than eight years—longer than the average (about economic conditions. five years) of the previous 11 expansions since 1945 (see Figure 1-15). Instead, it arises from the large output gap The agency’s current forecast for the near-term growth of that CBO anticipates in 2019. Such a gap would indicate output may be too pessimistic. For example, businesses that growth in demand was so robust that it strained the might respond to the projected increase in aggregate economy’s productive capacity, raising the likelihood that demand for goods and services with more robust hiring unexpected vulnerabilities, such as higher inflation or and investment than CBO anticipates. If so, the unem- unsustainable debt burdens, would develop. Although ployment rate could fall more sharply and inflationary CBO and many other forecasters do not anticipate such pressures could rise more quickly than CBO projects. problems to arise, they could develop within a year or Or a greater-than-expected easing of mortgage-lending two, making the economy more vulnerable as it slows. standards could support more rapid growth in house- hold formation and in residential investment than CBO Quantifying the Uncertainty in CBO’s Projections anticipates, accelerating the housing market’s recovery To roughly quantify the degree of uncertainty in its and further boosting house prices. Households’ increased projections for the next five years, CBO analyzed its wealth could then buttress consumer spending, raising past forecasts of the growth rate of real GDP and of GDP. inflation.11 On the basis of that analysis, CBO estimates that there is approximately a two-thirds chance that the In contrast, CBO’s forecast for the near-term growth average annual growth rate of real GDP will be between of output may be too optimistic. For example, if the 0.8 percent and 3.5 percent over the next five years. increased tightness of labor markets does not lead That is, there is a two-thirds chance that real GDP in to increases in hourly wages and benefits, household 2022 will be within roughly $1.3 trillion of the projected income and consumer spending could grow more slowly value of $19 trillion (in 2009 dollars; see Figure 1-16). than CBO anticipates. In addition, lower-than- Similarly, errors in CBO’s past forecasts of inflation (as expected growth among the United States’ leading measured by the CPI-U) suggest that there is a roughly trading partners could lower export growth below CBO’s two-thirds chance that the average annual rate of infla- forecast. Given such developments in aggregate demand, tion will fall between 1.4 percent and 3.4 percent over the unemployment rate could be higher and inflation the next five years. weaker than CBO projects. Comparisons With CBO’s The inflation rate, which is important for budget esti- June 2017 Projections mates, also could be higher or lower than in CBO’s CBO’s current economic projections differ in a projections because of factors other than the strength of number of ways from those that it issued in June 2017 demand in the economy. Inflationary pressures on con- sumer prices could be greater if import prices are higher 11. See Congressional Budget Office, CBO’s Economic Forecasting than CBO projects. That could happen if, for example, Record: 2017 Update (October 2017), www.cbo.gov/ synchronized growth around the world raised the prices publication/53090. 34 The Budget and Economic Outlook: 2018 to 2028 April 2018 Figure 1-15 . Duration of Economic Expansions Since 1945 Quarters Quarters 40 30 20 40 The current economic expansion has 35 36 lasted nine years (36 quarters)—about 31 24 four years longer than the average 10 20 expansion since 1945. 12 14 13 12 8 4 0 1945– 1949– 1954– 1958– 1961– 1970– 1975– 1980– 1982– 1991– 2001– 2009– 1948 1953 1957 1960 1969 1973 1980 1981 1990 2001 2007 present Sources: Congressional Budget Office; National Bureau of Economic Research. The duration of an economic expansion is the number of quarters from the trough of a business cycle to its peak. For each bar, the first year is the year of the trough and the second is the year of the peak. Not shown in this figure are periods of economic contraction—recessions—which extend from the peak of a business cycle to its trough. GDP = gross domestic product. (see Table 1-4 on page 36). The comparison is com- • New and revised data contributed to upward revisions plicated by a variety of changes that have occurred since to the current level and trajectory of GDP, but they CBO issued its last projections—in policies, economic also led the agency to significantly lower its estimates conditions, methodological approaches, and available of labor’s share of income and of the rate of price economic data: inflation in the early years of the projection period. • On the policy side, reforms to the tax code that Revisions to Projections of Potential Output affect incentives to work and invest have changed the CBO’s projections of real potential output have been expected trajectory of the economy’s potential output, revised upward since last June as a consequence of and changes in federal spending and revenue policies data revisions and updates, improvements in analytical are expected to increase demand in the economy in methods, and changes in policy. Updates to historical the near term. data resulted in upward revisions to estimated potential output in recent years and to the agency’s 11-year projec- • Underlying economic conditions have improved in tions of that measure. The effects of those data revisions some unexpected ways since June. For example, asset were reinforced by improvements in analytical methods. prices (particularly the value of corporate equities) First, CBO lowered its estimate of the natural rate of have substantially increased, and the global economy unemployment by about 0.1 percentage point through- has strengthened more than the agency projected at out the projection period, reflecting the agency’s reassess- that time. ment of how demographic trends are affecting that rate. Second, the agency revised the data sources and methods • Changes in CBO’s methods, including an improved that it uses to estimate potential employment and hours approach to projecting labor force participation rates, worked in different sectors of the economy. Both changes have resulted in somewhat larger projections of the increased estimates of potential hours worked in recent potential labor supply.12 years and thus raised CBO’s estimate of potential GDP. 12. See Joshua Montes, CBO’s Projection of Labor Force Participation In addition, the recent tax legislation included provi- Rates, Working Paper 2018-04 (Congressional Budget Office, sions that increased incentives to work and invest, which March 2018), www.cbo.gov/publication/53616. Page 1 of 1 CHAPTER 1: THE ECONOMIC OUTLOOK The Budget and Economic Outlook: 2018 to 2028 35 Figure 1-16 . The Uncertainty of CBO’s Projections of Real GDP Trillions of 2009 Dollars 25 Actual Projected 20 In CBO’s baseline projections, real GDP grows at an average annual rate 15 of 2.2 percent over the 2018–2022 period—but there is a roughly two- thirds chance that the growth would be 10 between 0.8 percent and 3.5 percent. 0 5 2000 2004 2008 2012 2016 2020 Sources: Congressional Budget Office; Bureau of Economic Analysis. Real values are nominal values that have been adjusted to remove the effects of inflation. The shaded area around CBO’s baseline projection of real GDP is one way to illustrate the uncertainty of that projection. The area is based on the errors in CBO’s one-, two-, three-, four-, and five-year projections of the average annual growth rate of real GDP for calendar years 1976 through 2017. The vertical bars indicate recessions, which extend from the peak of a business cycle to its trough. GDP = gross domestic product. more than offset the negative effects on investment from Revisions to Projections of Actual Output greater projected federal borrowing. Because several of CBO significantly boosted its projections of the growth those provisions that would encourage a larger supply of real GDP in 2018 and 2019, mostly because of the of labor and a larger capital stock are scheduled to expire recent changes in fiscal policy. Some of the difference later in the projection period, the legislation increases the in near-term growth also reflects growth in the U.S. growth of potential GDP in CBO’s projections through economy in the second half of 2017 that was appreciably 2024 but slows that growth thereafter. For example, stronger than expected. New and revised data caused CBO has raised its projections of the potential labor the Bureau of Economic Analysis (BEA) to estimate that force participation rate for the 2019–2024 period by an real GDP grew by 2.6 percent from the fourth quarter average of 0.3 percentage points but has raised the pro- of 2016 to the fourth quarter of 2017, whereas last June, jection for 2027 by only 0.1 percentage point. CBO estimated that growth over the period would be 2.2 percent. The growth of real GDP in CBO’s current Taken together, those changes led CBO to revise its projections now increases to 3.3 percent in 2018 before June 2017 projections of potential GDP as follows: The falling back to 2.4 percent in 2019. In the projections agency increased its estimate for 2017 by more than published last June, the growth rate of real GDP fell to 0.7 percent and its projection for 2027 by more than 2.0 percent in 2018 and to 1.5 percent in 2019. 1.6 percent. Changes to data and methods account for about 1.1 percentage points of the increase in projected Because CBO made larger upward revisions to its projec- potential GDP in 2027, and the effects of the recent tax tions of actual GDP growth than it did to its projections legislation account for about 0.5 percentage points. As of potential GDP growth, the agency increased its pro- a consequence of those revisions to the level of potential jections of the output gap through 2023. In the agency’s GDP, CBO’s projection of the average annual growth June 2017 projections, real GDP grew somewhat faster rate of potential GDP over the 11-year period increased than potential output through 2018 and slowed for two by about 0.1 percentage point, from 1.8 percent to years before rising at the same rate as potential output. 1.9 percent (see Figure 1-17 on page 38). By contrast, in CBO’s current projections, that pattern is 36 The Budget and Economic Outlook: 2018 to 2028 April 2018 Table 1-4 . Comparison of CBO’s Current and Previous Economic Projections for Calendar Years 2017 to 2027 Annual Average Total, 2017 a 2018 2019 2017–2021 2022–2027 2017–2027 Percentage Change From Fourth Quarter to Fourth Quarter Real GDP b April 2018 2.6 3.3 2.4 2.3 1.7 2.0 June 2017 2.2 2.0 1.5 1.8 1.9 1.8 Nominal GDP April 2018 4.5 5.2 4.5 4.3 3.9 4.1 June 2017 4.0 4.0 3.4 3.8 4.0 3.9 PCE Price Index April 2018 1.7 1.8 2.0 2.0 2.0 2.0 June 2017 1.8 2.0 2.0 2.0 2.0 2.0 Core PCE Price Index c April 2018 1.5 1.9 2.1 2.0 2.0 2.0 June 2017 1.8 2.0 2.0 1.9 2.0 2.0 Consumer Price Index d April 2018 2.1 2.0 2.3 2.3 2.4 2.4 June 2017 2.1 2.3 2.4 2.3 2.4 2.4 Core Consumer Price Index c April 2018 1.7 2.3 2.5 2.4 2.4 2.4 June 2017 2.1 2.3 2.3 2.3 2.4 2.3 GDP Price Index April 2018 1.9 1.8 2.1 2.0 2.1 2.1 June 2017 1.8 2.0 1.9 1.9 2.1 2.0 Employment Cost Index e April 2018 2.8 3.1 3.6 3.3 3.2 3.2 June 2017 3.1 3.3 3.4 3.2 3.1 3.2 Real Potential GDP April 2018 1.7 2.0 2.1 2.0 1.8 1.9 June 2017 1.6 1.7 1.8 1.7 1.9 1.8 Continued considerably more pronounced, and the output gap does hours worked, the result of increases in both the poten- not decline to CBO’s estimate of the historical average tial labor force participation rate and average weekly until 2024, four years later than in the previous projec- hours, are higher by an average of nearly 0.6 percent over tion. All told, for 2027, CBO’s projection of real GDP is that period. now 1.6 percent greater than the June 2017 projection. With the strong growth of U.S. economic output in Revisions to Projections of the Labor Market the second half of 2017, employment has been stronger CBO’s projections of important labor market variables and the unemployment rate lower than CBO projected have been substantially revised since June. In the current in June. CBO projects that some of that additional projections, the 2017 tax act boosts potential output by momentum in the labor market will carry into the increasing the potential supply of labor through increases projection period and that the recent tax legislation will in the potential labor force participation rate and in further boost employment, both by increasing the supply hours worked per worker. The potential labor force of labor and by raising overall aggregate demand. Over participation rate is higher by an average of 0.2 percent- the next several years, the projected near-term stimu- age points during the 2018–2028 period. Total potential lus to spending increases demand for workers, putting CHAPTER 1: THE ECONOMIC OUTLOOK The Budget and Economic Outlook: 2018 to 2028 37 Table 1-4.Continued Comparison of CBO’s Current and Previous Economic Projections for Calendar Years 2017 to 2027 Annual Average Total, 2017 a 2018 2019 2017–2021 2022–2027 2017–2027 Annual Average Unemployment Rate (Percent) April 2018 4.4 3.8 3.3 3.8 4.8 4.3 June 2017 4.4 4.2 4.4 4.5 4.9 4.8 Interest Rates (Percent) Three-month Treasury bills April 2018 0.9 1.9 2.9 2.6 2.9 2.8 June 2017 0.9 1.5 2.2 2.0 2.8 2.4 Ten-year Treasury notes April 2018 2.3 3.0 3.7 3.5 3.8 3.6 June 2017 2.4 2.8 3.2 3.1 3.7 3.4 Tax Bases (Percentage of GDP) Wages and salaries April 2018 43.1 43.2 43.5 43.5 44.2 43.9 June 2017 44.4 44.5 44.6 44.5 44.5 44.5 Domestic Corporate Profits f April 2018 8.9 9.5 9.6 9.1 8.1 8.6 June 2017 8.6 8.4 8.2 8.2 7.5 7.8 Sources: Congressional Budget Office; Bureau of Labor Statistics; Federal Reserve. GDP = gross domestic product; PCE = personal consumption expenditures. a.Data in this column for the April 2018 projection are actual values. b.Real values are nominal values that have been adjusted to remove the effects of inflation. c.Excludes prices for food and energy. d.The consumer price index for all urban consumers. e.The employment cost index for wages and salaries of workers in private industry. f. Consists of domestic profits, adjusted to remove distortions in depreciation allowances caused by tax rules and to exclude the effect of inflation on the value of inventories. downward pressure on the unemployment rate and have been boosted to about 210,000 jobs per month in upward pressure on wages and salaries and on labor force 2018 and 180,000 jobs per month in 2019, up from participation. 110,000 jobs and 30,000 jobs per month for those years, respectively, in the agency’s June 2017 projections. Because the factors that increase the demand for labor outweigh the factors that increase the supply During the second half of the projection period, the revi- of labor, CBO projects that labor markets will be tighter sions to labor market variables are smaller, as the slowing in the near term than it did in June. As a consequence, growth of economic activity restrains the demand for the agency revised downward the average unemploy- labor and eases the tightness of labor markets. In CBO’s ment rate in its projections for the 2017–2021 period by projections, the unemployment rate for 2022 to 2027 0.7 percentage points. The average growth of wages and is about 0.2 percentage points lower, on average, than salaries has been revised upward by 0.1 percentage point. it was in June, in part because the natural rate of unem- And the average labor force participation rate has been ployment is lower. In addition, the rate of labor force revised upward by 0.2 percentage points. In addition, participation is slightly higher, on average, as is the rate projected increases in nonfarm payroll employment of growth of wages and salaries. 38 The Budget and Economic Outlook: 2018 to 2028 April 2018 Figure 1-17 . Revisions to CBO’s Projections of the Growth of Real Potential GDP Percent 2.5 Historical Projected 1 April 2018 2.0 June 2017 CBO’s projections of growth in real 1.5 potential output have been revised upward since last June as a consequence 1.0 of data revisions and updates, improvements in analytical methods, and 0.5 changes in fiscal policy. 0 0 2013 2015 2017 2019 2021 2023 2025 2027 Source: Congressional Budget Office. Real values are nominal values that have been adjusted to remove the effects of inflation. Potential GDP is CBO’s estimate of the maximum sustainable output of the economy. Growth is measured from the fourth quarter of one calendar year to the fourth quarter of the next. GDP = gross domestic product. Revisions to Projections of Inflation over the decade, on average. The net result is a long- CBO lowered its projection of inflation in 2018 because term interest rate at the end of the projection period inflation was unexpectedly low last year. However, that is largely unchanged from the June forecast. Also, consistent with the larger output gap, CBO now expects CBO expects the Federal Reserve to lower the federal greater inflationary pressure through 2024. In June, the funds rate beginning in 2025, offsetting the upward agency projected that the rate of inflation would not pressure on short-term rates from increased federal rise above the Federal Reserve’s target rate of 2 percent borrowing. On net, short-term interest rates projected during the projection period. Inflation is now projected for 2027 are roughly unchanged from those in the June to exceed that target from 2019 to 2024. forecast. Revisions to Projections of Interest Rates Revisions to Projections of Income CBO’s upward revision to the output gap has also had Changes to CBO’s projections of income made since implications for its projections of interest rates. With June have affected the agency’s projections of revenues financial markets, demand for credit, and monetary and of the budget. Those changes stem primarily from policy all responding to stronger aggregate demand, two sources: revisions to historical data and changes to CBO now expects short-term interest rates to be roughly the economic outlook resulting largely from recent tax three-quarters of a percentage point higher, on average, and spending legislation. and long-term interest rates to be roughly a half percent- age point higher, on average, from 2018 to 2021. In July 2017, BEA released updated national income and product accounts data, which revealed that labor income, In later years, revisions to other factors have offsetting including wages and salaries and proprietors’ income, effects on interest rates. Interest rates have been revised was much lower in 2017 than had previously been upward for the later years of the projection period to estimated. Those revisions also revealed that corporate reflect the projected increase in federal borrowing. profits and domestic corporate profits were much higher Partially offsetting that effect on long-term interest rates than BEA had previously estimated. On balance, those is a revision to the agency’s projection of the term pre- revisions alone would suggest that taxable income would mium, which CBO now expects to rise more gradually be slightly lower than it was in the June 2017 projec- than previously anticipated, dampening long-term rates tions. However, the recent legislation raised GDP and CHAPTER 1: THE ECONOMIC OUTLOOK The Budget and Economic Outlook: 2018 to 2028 39 increased the growth of labor compensation in CBO’s CBO’s projections suggest a stronger economy in the current projections, boosting projected labor income and near term than do the forecasts produced by Federal domestic corporate profits above the amounts that CBO Reserve officials and presented at the March 2018 anticipated in June. meeting of the Federal Open Market Committee (see Figure 1-19).13 The Federal Reserve reports three sets CBO has also revised its projections of equity prices of forecasts: a median, a range, and a central tendency. since June, in part because of unexpectedly strong The range reflects the highest and lowest forecasts of growth in those prices during the second half of 2017, the members of the Board of Governors of the Federal but also because of upward revisions to projected Reserve System and the presidents of the Federal Reserve growth in economic activity. Consequently, the agency Banks. The central tendency reflects the range of esti- projects higher revenues from various taxes. For example, mates formed by removing the three highest and three expected revenues from taxes on realized capital gains lowest projections. CBO’s projection of the growth of are higher throughout the projection period than CBO real GDP for 2018 is above both the central tendency projected in June 2017, particularly in the early years. and the range of Federal Reserve forecasts, whereas the forecast for 2019 is within both the range and the central Since June, the agency has lowered its projections of tendency. CBO’s projection of the unemployment rate labor’s share of income. The estimate of labor’s share of for 2018 is below both the central tendency and the income in recent years was significantly revised down- full range, and its projection of that rate for 2019 is at ward in the national accounts released in July 2017. The the bottom of the range. For consumer price inflation, anticipated acceleration of compensation had not begun CBO’s projections are within the central tendency for by late 2017, according to those data. Nonetheless, CBO both 2018 and 2019. continues to project that labor’s share of income will rise as labor markets tighten. Moreover, the rise in that share CBO’s projections differ from those of other forecasters is now expected to be steeper than projected in June for a variety of reasons. For example, other forecasts because of the upward revision to the demand for labor may not yet include all of the economic effects of the in CBO’s projections. Despite that steeper rise, labor’s federal tax and spending legislation enacted in late share of income at the end of the 11-year period is now 2017 and early 2018, which boost economic growth lower than it was in the June forecast. and interest rates and lower the unemployment rate in CBO’s projections. Also, other forecasts may incorporate Comparisons With Other expectations about future fiscal policies that differ from Economic Projections CBO’s assumption that current law generally remains The agency’s projections of the growth of real GDP, the unchanged. Differences in the economic data available unemployment rate, and interest rates in 2018 and 2019 when the forecasts were prepared and differences in the suggest a stronger economic outlook than does the Blue economic and statistical models used also might account Chip consensus forecast. CBO’s projections of real GDP for the discrepancies. For example, outside forecasters growth and interest rates are generally near the upper may assume a stronger link between inflation and slack end of the range of Blue Chip forecasts this year and next in the labor market than CBO does, which could explain year, and the agency’s projections of the unemployment why inflation is lower in CBO’s forecasts than it is in rate are near the lower end of the range in both years (see other forecasts. Figure 1-18). By contrast, CBO’s projections of inflation (as measured by the CPI-U) are close to the middle of 13. Board of Governors of the Federal Reserve System, “Economic the range of forecasts for both years. Projections of Federal Reserve Board Members and Federal Reserve Bank Presidents Under Their Individual Assessments of Projected Appropriate Monetary Policy, March 2018” (March 21, 2018), https://go.usa.gov/xQx5j (PDF, 120 KB). 40 The Budget and Economic Outlook: 2018 to 2028 April 2018 Figure 1-18 . Comparison of CBO’s Economic Projections With Those From the Blue Chip Survey CBO’s projections suggest a stronger economy over the next two years than do many outside forecasts. Real GDP Growth Consumer Price Inflation Percent Percent 4 4 CBO 3 3 2 Blue Chip, 2 Middle Two-Thirds 1 Blue Chip, 1 Full Range 0 0 2018 2019 2018 2019 GDP Price Inflation Unemployment Rate Percent Percent 4 5 a 3 4 2 3 1 2 0 1 0 2018 2019 2018 2019 Interest Rate on 3-Month Treasury Bills Interest Rate on 10-Year Treasury Notes Percent Percent 5 5 4 4 3 3 2 2 1 1 0 0 2018 2019 2018 2019 Sources: Congressional Budget Office; Wolters Kluwer, Blue Chip Economic Indicators (March 10, 2018). The full range of forecasts from the Blue Chip survey is based on the highest and lowest of the roughly 50 forecasts. The middle two-thirds of that range omits the top one-sixth and the bottom one-sixth of the forecasts. Real values are nominal values that have been adjusted to remove the effects of inflation. Consumer price inflation is calculated using the consumer price index for all urban consumers. Real GDP growth and inflation rates are measured from the average of one calendar year to the next. The unemployment rate is the number of jobless people who are available for and seeking work, expressed as a percentage of the labor force. The unemployment rate and interest rates are calendar year averages. GDP = gross domestic product. a. The upper ends of the full range and the middle two-thirds are equal. CHAPTER 1: THE ECONOMIC OUTLOOK The Budget and Economic Outlook: 2018 to 2028 41 Figure 1-19 . Comparison of CBO’s Economic Projections With Those by Federal Reserve Officials CBO’s projections suggest a stronger economy this year than do the Federal Reserve’s recent forecasts. Real GDP Growth Unemployment Rate Percent Percent 4 5 a 3 4 CBO b 2 3 Federal Reserve, 1 Central Tendency Federal Reserve, 2 Full Range 0 1 0 2018 2019 2020 Longer Term 2018 2019 2020 Longer Term PCE Price Inflation Core PCE Price Inflation Percent Percent 3 3 c d 2 2 b b 1 1 0 0 2018 2019 2020 Longer Term 2018 2019 2020 Longer Term Sources: Congressional Budget Office; Board of Governors of the Federal Reserve System, “Economic Projections of Federal Reserve Board Members and Federal Reserve Bank Presidents Under Their Individual Assessments of Projected Appropriate Monetary Policy, March 2018” (March 21, 2018), https://go.usa.gov/xQx5j (PDF, 120 KB). The full range of forecasts from the Federal Reserve is based on the highest and lowest of the 15 projections by the Board of Governors and the president of each Federal Reserve Bank. The central tendency is the range formed by removing the 3 highest and 3 lowest projections—roughly speaking, the middle two-thirds of the full range. For CBO, longer-term projections are values for 2028. For the Federal Reserve, longer-term projections are described as the value at which each variable would settle under appropriate monetary policy and in the absence of further shocks to the economy. Real GDP is the output of the economy adjusted to remove the effects of inflation. The unemployment rate is the number of jobless people who are available for and seeking work, expressed as a percentage of the labor force. The core PCE price index excludes prices for food and energy. Real GDP growth and inflation rates are measured from the fourth quarter of one calendar year to the fourth quarter of the next. The unemployment rate is a fourth-quarter value. GDP = gross domestic product; PCE = personal consumption expenditures. a.The upper ends of the full range and central tendency are equal. b.The lower ends of the full range and central tendency are equal. c.For PCE price inflation in the longer term, the range and central tendency equal 2 percent. d.The Federal Reserve does not indicate a range or central tendency for core PCE price inflation in the longer term. CHAPTER 2 Chapter 2 The Spending Outlook Overview Shifts in the Timing of Payments Will Affect Spending Under current law, federal outlays in 2018 will total Spending for 2018 would be about $44 billion higher if $4.1 trillion, the Congressional Budget Office esti- not for a shift in the timing of certain payments because mates—$160 billion, or 4 percent, more than the the first day of fiscal year 2018—October 1, 2017— amount spent in 2017. Spending is projected to grow at was a Sunday. When the first day of a month falls on a an average annual rate of 5.5 percent over the coming weekend, certain monthly payments (mostly for manda- decade, reaching $7.0 trillion in 2028 (see Table 2-1). tory benefit programs such as Medicare, Supplemental Social Security, Medicare, and net interest account for Security Income, and certain programs for veterans) more than two-thirds of that increase. normally made on that day are shifted to the preceding month; when that date is October 1, the shift moves Projected Spending in 2018 Differs From payments to the preceding fiscal year. Accordingly, for Spending in the Past those benefit programs, only 11 months of payments will Federal outlays in 2018 will equal 20.6 percent of be made in fiscal year 2018 rather than the usual 12. gross domestic product (GDP), CBO estimates, down slightly from 20.8 percent last year but above the 50-year Without that shift in the timing of payments, outlays average of 20.3 percent. That increase over the historical this year would be 5 percent greater than in 2017 and average is largely attributable to significant growth in measure 20.8 percent of GDP, CBO estimates—a slight mandatory spending (net of the offsetting receipts that uptick from the 20.7 percent of GDP they would have are credited against such spending), which is expected measured last year if a similar shift in the timing of to equal 12.7 percent of GDP in 2018, compared with payments was excluded. Additional timing shifts will its 9.8 percent average over the 1968–2017 period. As occur later in the projection period: CBO estimates that a share of GDP, the other major components of fed- $62 billion in outlays will shift from 2023 into 2022, eral spending will fall below their 50-year averages: $67 billion will shift from 2024 into 2023, and $89 bil- Discretionary spending is anticipated to equal 6.4 per- lion will shift from 2029 into 2028. cent of GDP this year, compared with its 8.5 percent average over the past 50 years, and net outlays for inter- Spending Is Projected to Rise Significantly est are expected to equal 1.6 percent of GDP, compared Relative to GDP with the 50-year average of 2.0 percent (see Figure 2-1). In CBO’s baseline projections, outlays continue to rise in relation to the size of the economy over the coming About half of the projected growth in outlays in 2018 is decade, reaching 23.3 percent of GDP in 2028 (adjusted attributable to discretionary spending, which is projected to exclude the effects of timing shifts), an increase of to rise by $80 billion, or 7 percent, from $1.2 trillion last 2.5 percentage points from the adjusted estimate for year to nearly $1.3 trillion this year. The government’s net 2018.1 Relative to GDP, mandatory spending and net interest costs are also anticipated to grow in 2018, increas- interest costs are projected to rise significantly, whereas ing by $53 billion, or 20 percent, to $316 billion. CBO discretionary spending is projected to decline (see estimates that mandatory spending will remain close to Figure 2-2 on page 47). Specifically: last year’s amount—$2.5 trillion—rising by $27 billion, or 1 percent. (For descriptions of those three major types of • Mandatory spending is projected to increase by federal spending, see Box 2-1 on page 46.) 2 percentage points (from 12.9 percent of GDP to 14.9 percent), primarily because the aging of the 1. The timing shift in 2028 boosts projected outlays for that year to $7.0 trillion, or 23.6 percent of GDP. 44 The Budget and Economic Outlook: 2018 to 2028 April 2018 Table 2-1 . Outlays Projected in CBO’s Baseline Total Actual, 2019– 2019– 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2023 2028 In Billions of Dollars Mandatory Social Security 939 984 1,043 1,110 1,180 1,253 1,330 1,410 1,495 1,583 1,676 1,774 5,915 13,853 Medicare a 702 707 776 830 893 996 1,032 1,062 1,181 1,267 1,358 1,521 4,527 10,915 Medicaid 375 383 401 417 437 465 493 524 554 587 620 655 2,213 5,152 Other spending 756 724 758 776 808 857 854 851 891 920 928 981 4,053 8,624 Offsetting receipts -253 -252 -260 -272 -286 -305 -317 -334 -361 -374 -393 -406 -1,439 -3,306 Subtotal 2,519 2,546 2,719 2,861 3,031 3,266 3,392 3,513 3,760 3,983 4,189 4,524 15,269 35,238 Discretionary Defense 590 622 669 651 655 671 679 688 710 727 745 769 3,325 6,964 Nondefense 610 658 693 689 693 708 727 748 771 794 817 839 3,511 7,480 Subtotal 1,200 1,280 1,362 1,340 1,348 1,380 1,406 1,436 1,481 1,522 1,562 1,608 6,836 14,445 Net Interest 263 316 390 485 570 643 702 739 774 817 864 915 2,789 6,897 Total 3,982 4,142 4,470 4,685 4,949 5,288 5,500 5,688 6,015 6,322 6,615 7,046 24,893 56,580 On-budget 3,180 3,288 3,556 3,706 3,901 4,168 4,303 4,414 4,658 4,883 5,084 5,416 19,634 44,088 Off-budget b 801 853 915 980 1,048 1,120 1,197 1,274 1,357 1,439 1,531 1,631 5,259 12,492 Memorandum: Outlays Adjusted to Exclude Timing Shifts Mandatory outlays 2,516 2,587 2,719 2,861 3,031 3,208 3,387 3,575 3,760 3,983 4,189 4,440 15,206 35,154 Total outlays 3,978 4,186 4,470 4,685 4,949 5,226 5,495 5,755 6,015 6,322 6,615 6,957 24,826 56,490 Gross Domestic Product 19,178 20,103 21,136 22,034 22,872 23,716 24,621 25,583 26,595 27,608 28,677 29,803 114,379 252,646 As a Percentage of Gross Domestic Product Mandatory Social Security 4.9 4.9 4.9 5.0 5.2 5.3 5.4 5.5 5.6 5.7 5.8 6.0 5.2 5.5 Medicare a 3.7 3.5 3.7 3.8 3.9 4.2 4.2 4.2 4.4 4.6 4.7 5.1 4.0 4.3 Medicaid 2.0 1.9 1.9 1.9 1.9 2.0 2.0 2.0 2.1 2.1 2.2 2.2 1.9 2.0 Other spending 3.9 3.6 3.6 3.5 3.5 3.6 3.5 3.3 3.3 3.3 3.2 3.3 3.5 3.4 Offsetting receipts -1.3 -1.3 -1.2 -1.2 -1.2 -1.3 -1.3 -1.3 -1.4 -1.4 -1.4 -1.4 -1.3 -1.3 Subtotal 13.1 12.7 12.9 13.0 13.3 13.8 13.8 13.7 14.1 14.4 14.6 15.2 13.3 13.9 Discretionary Defense 3.1 3.1 3.2 3.0 2.9 2.8 2.8 2.7 2.7 2.6 2.6 2.6 2.9 2.8 Nondefense 3.2 3.3 3.3 3.1 3.0 3.0 3.0 2.9 2.9 2.9 2.8 2.8 3.1 3.0 Subtotal 6.3 6.4 6.4 6.1 5.9 5.8 5.7 5.6 5.6 5.5 5.4 5.4 6.0 5.7 Net Interest 1.4 1.6 1.8 2.2 2.5 2.7 2.8 2.9 2.9 3.0 3.0 3.1 2.4 2.7 Total 20.8 20.6 21.2 21.3 21.6 22.3 22.3 22.2 22.6 22.9 23.1 23.6 21.8 22.4 On-budget 16.6 16.4 16.8 16.8 17.1 17.6 17.5 17.3 17.5 17.7 17.7 18.2 17.2 17.5 Off-budget b 4.2 4.2 4.3 4.4 4.6 4.7 4.9 5.0 5.1 5.2 5.3 5.5 4.6 4.9 Memorandum: Outlays Adjusted to Exclude Timing Shifts Mandatory outlays 13.1 12.9 12.9 13.0 13.3 13.5 13.8 14.0 14.1 14.4 14.6 14.9 13.3 13.9 Total outlays 20.7 20.8 21.2 21.3 21.6 22.0 22.3 22.5 22.6 22.9 23.1 23.3 21.7 22.4 Source: Congressional Budget Office. a.Gross spending, excluding the effects of Medicare premiums and other offsetting receipts. b.Off-budget outlays stem from transactions related to the Social Security trust funds and the net cash flow of the Postal Service. CHAPTER 2: THE SPENDING OUTLOOK The Budget and Economic Outlook: 2018 to 2028 45 Figure 2-1 . Outlays, by Category Percentage of Gross Domestic Product 16 Actual Projected Under current law, rising spending for 12 Mandatory Social Security and Medicare would boost mandatory outlays. Total discretionary spending is 8 projected to fall as a share of gross domestic product as outlays grow Discretionary modestly in nominal terms. 4 At the same time, growing debt and higher interest rates are projected to Net Interest push up net interest costs. 0 1968 1973 1978 1983 1988 1993 1998 2003 2008 2013 2018 2023 2028 Source: Congressional Budget Office, using data from the Office of Management and Budget. population and rising health care costs per beneficiary • Outlays for the largest federal program, Social will increase spending for Social Security, Medicare, Security, are expected to rise from 4.9 percent of and other programs. GDP in 2018 to 6.0 percent in 2028. • As interest rates return to historically higher levels • Federal outlays for the major health care programs— and federal debt continues to mount, net outlays for Medicare, Medicaid, subsidies offered through the interest are projected to jump significantly, increasing health insurance marketplaces established under the by 1.5 percentage points and nearly doubling as a Affordable Care Act and related spending, and the share of the economy (from 1.6 percent of GDP to Children’s Health Insurance Program (CHIP)—are 3.1 percent) by 2028. projected to grow from 5.3 percent of GDP in 2018 to 6.6 percent in 2028, mostly because of growth in • Discretionary spending is projected to fall by Medicare spending.2 1.0 percentage point as a share of GDP—from 6.4 percent to 5.4 percent. That decline reflects • Outlays for all other mandatory programs (net of lower statutory limits on discretionary funding in offsetting receipts) are projected to decline from 2020 and 2021 and the assumption (required by 2.7 percent of GDP in 2018 to 2.4 percent in 2028. law) that discretionary funding will grow at the rate of inflation—which is slower than projected growth Mandatory Spending in GDP—beginning in 2022. Those projected Mandatory—or direct—spending consists of spending decreases follow significant increases in discretionary for some benefit programs and other payments to people, funding provided for 2018 in the Consolidated businesses, nonprofit institutions, and state and local Appropriations Act, 2018 (Public Law 115-141), and governments. Mandatory spending is generally governed permitted for 2019 by the Bipartisan Budget Act of by statutory criteria and is not normally constrained by 2018 (P.L. 115-123). the annual appropriation process.3 Certain types of pay- ments that federal agencies receive from the public and Among mandatory programs, outlays for Social Security from other government agencies are classified as offsetting and for major health care programs are projected to rise relative to GDP; spending for all other mandatory pro- 2. Spending for Medicare is presented net of premium payments grams is projected to decline relative to GDP. In particu- and other offsetting receipts, unless otherwise noted. lar (adjusted to exclude the effects of timing shifts): 3. Each year, some mandatory programs are modified by provisions in annual appropriation acts. Such changes may decrease or increase spending for the affected programs for one or more years. 46 The Budget and Economic Outlook: 2018 to 2028 April 2018 Box 2-1. Categories of Federal Spending On the basis of its treatment in the budget process, federal However, the baseline also incorporates the assumption that spending can be divided into three broad categories: manda- discretionary funding will not exceed caps imposed by the tory spending, discretionary spending, and net interest. Budget Control Act of 2011 (P.L. 112-25) and modified by subse- quent legislation. Mandatory spending consists primarily of spending for benefit programs, such as Social Security, Medicare, and Medicaid. Discretionary funding related to five types of activities is not The Congress largely determines funding for those programs constrained by the caps, and it is generally assumed to grow by setting rules for eligibility, benefit formulas, and other with inflation after 2018, in accordance with the rules govern- parameters rather than by appropriating specific amounts each ing CBO’s baseline projections. Specifically, appropriations year. In making baseline projections, the Congressional Budget designated for overseas contingency operations and activities Office generally assumes that the existing laws and policies designated as emergency requirements are assumed to grow governing those programs will remain unchanged. Manda- with inflation. Funding for the other three types of activities— tory spending also includes offsetting receipts—fees and which consist of certain efforts to reduce overpayments in other charges that are recorded as negative budget authority benefit programs, programs designated by the 21st Century and outlays. Offsetting receipts differ from revenues, in that Cures Act (P.L. 114-225), and disaster relief—is not constrained revenues are collected in the exercise of the government’s sov- by the caps on defense and nondefense funding but is subject ereign powers (income taxes, for example), whereas offsetting to other annual limits. receipts are mostly collected from other government accounts In addition to outlays from appropriations subject to the caps, or from members of the public for businesslike transactions the baseline projections include discretionary spending for (premiums for Medicare or royalties for the drilling of oil on highway and airport infrastructure programs and public transit public lands, for example). programs, all of which receive mandatory budget authority Discretionary spending is controlled by annual appropriation from authorizing legislation. Each year, however, appropriation acts in which policymakers specify how much money will be acts control spending for those programs by limiting how much provided for certain government programs in specific years. of that budget authority the Department of Transportation Appropriations fund a broad array of government activities, can obligate. For that reason, those obligation limitations are including defense, law enforcement, and transportation. They often treated as a measure of discretionary resources, and the also fund the national park system, disaster relief, and foreign resulting outlays are considered discretionary spending. aid. Some of the fees and charges triggered by appropriation Net interest consists of interest paid on Treasury securities and acts are classified as offsetting collections and are credited other interest that the government pays (for example, interest against discretionary spending for the particular accounts paid on late refunds issued by the Internal Revenue Service) affected. minus the amounts that it collects from various sources (for CBO’s baseline projections depict the path of spending for example, from states that pay the federal unemployment trust individual discretionary accounts as directed by the provisions fund interest on advances they received when the balances of the Balanced Budget and Emergency Deficit Control Act of of their state unemployment accounts were insufficient to pay 1985 (Public Law 99-177). That act stated that current appropri- benefits in a timely fashion). Net interest is determined by the ations should be assumed to grow with inflation in the future.1 size and composition of the government’s debt and by market interest rates. 1. In CBO’s baseline projections, discretionary funding related to federal personnel is inflated using the employment cost index for wages and salaries of workers in private industry; other discretionary funding is adjusted using the gross domestic product price index. CHAPTER 2: THE SPENDING OUTLOOK The Budget and Economic Outlook: 2018 to 2028 47 Figure 2-2 . Major Changes in Projected Outlays From 2018 to 2028 Percentage of Gross Domestic Product Outlays Change Major Reasons (Percentage points) for Change -1.6 0 1.6 2018 2028 Social Security 4.9 6.0 1.1 • Aging of the population Major Health Care • Aging of the population; Programsa 5.3 6.6 1.3 rising costs of health care Other Mandatory Spending 2.7 2.4 -0.3 • Many factors Discretionary 6.4 5.4 • Caps on funding; inflation -1.0 Spending less than GDP growth Net Interest 1.6 3.1 1.5 • Accumulating debt; rising interest rates Source: Congressional Budget Office. GDP = gross domestic product. Outlays as a percentage of GDP have been adjusted to exclude the effects of timing shifts. a. Consists of spending for Medicare (net of premiums and other offsetting receipts), Medicaid, and the Children’s Health Insurance Program as well as outlays to subsidize health insurance purchased through the marketplaces established under the Affordable Care Act and related spending. receipts and reduce mandatory spending. In 2018, man- projections for mandatory spending reflect the estimated datory spending (net of offsetting receipts) accounts for effects of economic influences, caseload growth, and other about 60 percent of total estimated spending. factors on the cost of those programs. The projections also incorporate a set of across-the-board reductions (known The Balanced Budget and Emergency Deficit Control as sequestration) that are required under current law for Act of 1985 (P.L. 99-177), referred to here as the Deficit spending on certain mandatory programs. Control Act, requires CBO’s projections for most manda- tory programs to incorporate the assumption that current CBO’s Baseline Projections of Mandatory Spending laws continue unchanged.4 Therefore, CBO’s baseline From 2018 to 2028 In 2017, mandatory spending totaled about $2.5 tril- 4. Section 257 of the Deficit Control Act also requires CBO to lion, or 13.1 percent of GDP. CBO estimates that under assume that certain mandatory programs will continue beyond current law, such spending will rise by about 1 percent their scheduled expiration and that entitlement programs, including Social Security and Medicare, will be fully funded in 2018, remaining at $2.5 trillion, or 12.7 percent of and thus will be able to make all scheduled payments. Other GDP (see Table 2-2). Most of that estimated increase is rules that govern the construction of CBO’s baseline have attributable to larger outlays for Social Security and the been developed by the agency in consultation with the House major health care programs and decreases in offsetting and Senate Committees on the Budget. For further details, receipts from Fannie Mae and Freddie Mac, moderated see Congressional Budget Office, “How CBO Prepares by a decline in outlays for higher education. The rate Baseline Budget Projections” (February 2018), www.cbo.gov/ publication/53532. of growth in mandatory spending is slowed by the shift 48 The Budget and Economic Outlook: 2018 to 2028 April 2018 Table 2-2 . Mandatory Outlays Projected in CBO’s Baseline Billions of Dollars Total Actual, 2019– 2019– 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2023 2028 Social Security Old-Age and Survivors Insurance 796 840 895 956 1,019 1,085 1,155 1,226 1,303 1,382 1,465 1,557 5,109 12,043 Disability Insurance 143 144 148 154 161 168 176 184 192 201 211 216 806 1,810 Subtotal 939 984 1,043 1,110 1,180 1,253 1,330 1,410 1,495 1,583 1,676 1,774 5,915 13,853 Major Health Care Programs Medicare a 702 707 776 830 893 996 1,032 1,062 1,181 1,267 1,358 1,521 4,527 10,915 Medicaid 375 383 401 417 437 465 493 524 554 587 620 655 2,213 5,152 Health insurance subsidies and related spending b 48 58 60 61 67 74 76 78 81 83 87 91 338 757 Children's Health Insurance Program 16 16 16 14 13 13 13 14 14 15 15 16 69 143 Subtotal  a 1,141 1,164 1,252 1,322 1,409 1,548 1,614 1,677 1,831 1,952 2,080 2,282 7,146 16,967 Income Security Programs Earned income, child, and other tax credits c 83 87 99 99 99 100 99 100 101 102 88 88 496 975 Supplemental Nutrition Assistance Program 70 69 66 65 65 65 65 65 66 67 69 70 326 664 Supplemental Security Income 55 51 57 58 60 67 64 60 68 70 72 81 306 658 Unemployment compensation 31 30 27 30 36 43 47 50 52 55 57 59 183 456 Family support and foster care d 31 32 32 32 33 33 33 34 34 34 34 34 163 333 Child nutrition 23 24 26 27 28 29 30 31 33 34 36 37 139 311 Subtotal 294 294 307 311 320 336 338 341 354 363 356 370 1,613 3,397 Federal Civilian and Military Retirement Civilian e 101 102 105 109 113 118 122 126 131 135 139 143 568 1,242 Military 58 54 61 63 66 73 70 66 73 75 77 85 332 708 Other 4 3 3 4 5 6 7 8 4 10 7 7 25 61 Subtotal 163 160 169 177 184 197 198 200 207 220 223 236 925 2,011 Veterans' Programs Income security f 86 83 94 99 103 115 111 105 119 123 127 144 522 1,140 Other g 19 17 17 16 17 18 18 18 20 20 21 23 87 190 Subtotal 105 100 112 115 120 134 129 124 138 143 148 167 609 1,330 Other Programs Agriculture 13 17 14 13 15 15 15 15 15 15 15 15 71 145 Deposit Insurance -12 -14 -9 -8 -7 -8 -8 -8 -8 -8 -9 -8 -39 -79 MERHCF 10 10 11 11 12 12 13 14 14 15 16 17 59 135 Fannie Mae and Freddie Mac h 0 0 3 2 * 2 2 2 2 2 2 2 8 19 Higher education 42 -4 3 7 8 8 7 6 6 6 6 6 33 63 Other 77 87 73 74 76 73 70 66 67 67 67 70 366 704 Subtotal 130 97 94 98 104 103 99 95 96 97 98 102 498 986 Continued CHAPTER 2: THE SPENDING OUTLOOK The Budget and Economic Outlook: 2018 to 2028 49 Table 2-2. Continued Mandatory Outlays Projected in CBO’s Baseline Billions of Dollars Total Actual, 2019– 2019– 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2023 2028 Offsetting Receipts Medicare i -111 -124 -135 -145 -155 -168 -180 -194 -208 -225 -242 -261 -782 -1,912 Federal share of federal employees' retirement Social Security -17 -17 -18 -18 -19 -20 -20 -21 -22 -22 -23 -24 -96 -208 Military retirement -18 -19 -21 -21 -21 -22 -22 -23 -24 -24 -25 -25 -107 -228 Civil service retirement and other -35 -37 -38 -39 -40 -41 -42 -43 -45 -46 -47 -48 -200 -429 Subtotal -71 -72 -76 -78 -80 -83 -85 -88 -90 -92 -95 -97 -403 -865 Receipts related to natural resources -9 -11 -11 -11 -11 -12 -11 -12 -13 -13 -13 -13 -56 -119 MERHCF -7 -8 -8 -8 -9 -9 -10 -10 -11 -11 -12 -12 -43 -99 Fannie Mae and Freddie Mac h -29 -6 0 0 0 0 0 0 0 0 0 0 0 0 Other -27 -31 -30 -30 -31 -33 -31 -31 -39 -33 -31 -23 -154 -311 Subtotal -253 -252 -260 -272 -286 -305 -317 -334 -361 -374 -393 -406 -1,439 -3,306 Total Mandatory Outlays 2,519 2,546 2,719 2,861 3,031 3,266 3,392 3,513 3,760 3,983 4,189 4,524 15,269 35,238 Memorandum: Mandatory Spending Excluding the Effects of Offsetting Receipts 2,772 2,799 2,979 3,132 3,317 3,570 3,709 3,847 4,121 4,357 4,582 4,930 16,707 38,544 Spending for Medicare Net of Offsetting Receipts 591 583 641 685 738 828 852 868 973 1,042 1,116 1,260 3,744 9,003 Spending for Major Health Care Programs Net of Offsetting Receipts j 1,030 1,040 1,118 1,177 1,254 1,380 1,434 1,484 1,622 1,726 1,838 2,021 6,364 15,055 Mandatory Spending Excluding the Effects of Timing Shifts, Net of Offsetting Receipts 2,516 2,587 2,719 2,861 3,031 3,208 3,387 3,575 3,760 3,983 4,189 4,440 15,206 35,154 Source: Congressional Budget Office. Data on spending for benefit programs in this table generally exclude administrative costs, which are discretionary. MERHCF = Department of Defense Medicare-Eligible Retiree Health Care Fund (including TRICARE for Life); * = between zero and $500 million. a.Gross spending, excluding the effects of Medicare premiums and other offsetting receipts. (Net Medicare spending is included in the memorandum section of the table.) b.Spending to subsidize health insurance purchased through the marketplaces established under the Affordable Care Act and provided through the Basic Health Program and spending to stabilize premiums for health insurance purchased by individuals and small employers (preliminary estimate). c.Includes outlays for the American Opportunity Tax Credit and other credits. d.Includes the Temporary Assistance for Needy Families program, the Child Support Enforcement program, the Child Care Entitlement program, and other programs that benefit children. e.Includes benefits for retirement programs in the civil service, foreign service, and Coast Guard; benefits for smaller retirement programs; and annuitants’ health care benefits. f. Includes veterans’ compensation, pensions, and life insurance programs. g.Primarily education subsidies. (The costs of veterans’ health care are classified as discretionary spending and therefore are not shown in this table.) h.Cash payments from Fannie Mae and Freddie Mac to the Treasury are recorded as offsetting receipts in 2017 and 2018. Beginning in 2019, CBO’s estimates reflect the net lifetime costs—that is, the subsidy costs adjusted for market risk—of the guarantees that those entities will issue and of the loans that they will hold. CBO counts those costs as federal outlays in the year of issuance. i. Includes premium payments, recoveries of overpayments made to providers, and amounts paid by states from savings on Medicaid’s prescription drug costs. j. Consists of spending for Medicare (net of premiums and other offsetting receipts), Medicaid, and the Children’s Health Insurance Program as well as outlays to subsidize health insurance purchased through the marketplaces established under the Affordable Care Act and related spending. 50 The Budget and Economic Outlook: 2018 to 2028 April 2018 in the timing of certain payments from fiscal year 2018 horizon—especially for Social Security and Medicare— to fiscal year 2017.5 Without that timing shift, manda- and will grow in size beyond the baseline period. tory spending would increase in 2018 by an additional $40 billion (or 2.8 percent), to $2.6 trillion, or 12.9 per- Social Security. Social Security, the largest federal spend- cent of GDP. (In the discussion of mandatory spending ing program, provides cash benefits to the elderly, to that follows, all numbers have been adjusted to exclude people with disabilities, and to the dependents and survi- the effects of timing shifts.) vors of people covered by the program. Last year, Social Security outlays totaled $939 billion, or 4.9 percent From 2018 to 2028, outlays for mandatory programs of GDP. Under current law, outlays for Social Security are projected to rise by an average of about 6 percent per are projected to rise by $45 billion in 2018, or about year, reaching $4.4 trillion in 2028. As a share of GDP, 5 percent. That growth rate is higher than it has been in mandatory spending is projected to increase slightly recent years, largely because Social Security beneficiaries through 2020—to 13.0 percent.6 Then, it rises steadily received a cost-of-living adjustment (COLA) of 2.0 per- to 14.9 percent in 2028. By comparison, mandatory cent in January 2018, the largest since 2012. Growth in spending averaged 12.8 percent of GDP over the past the number of beneficiaries is also anticipated to tick up 10 years and 9.8 percent over the past 50 years. from 1.5 percent last year to 1.9 percent in 2018. Much of the projected growth in mandatory spending Over the 2019–2028 period, outlays for Social Security over the coming decade is attributable to two factors. are projected to grow at an average rate of about 6 per- First, the number of people age 65 or older in the cent per year, reaching $1.8 trillion—or 6.0 percent of population has been growing significantly—more than GDP—by 2028. That growth reflects increases in the doubling over the past 50 years and expected to rise by number of beneficiaries and in the amount of the average more than one-third by 2028. In CBO’s baseline pro- benefit. In CBO’s projections, the number of beneficia- jections, spending for people age 65 or older in several ries grows by about 2.3 percent each year, from an aver- large mandatory programs—Social Security, Medicare, age of 62.3 million beneficiaries in 2018 to 78.0 million Medicaid, and military and federal civilian retirement in 2028, and average benefits grow by about 3.7 percent programs—increases from 38 percent of all federal non- each year, mainly because of annual COLAs, which are interest spending in 2018 to 45 percent in 2028. projected to average 2.4 percent. Second, health care costs (adjusted to account for the Medicare, Medicaid, and Other Major Health Care aging of the population) are projected to grow faster Programs. In 2017, net federal outlays for Medicare, than the economy over the long term. Growth in health Medicaid, and other major programs related to health care care spending has slowed in recent years, but the reasons accounted for 41 percent of mandatory spending (net of for that slowdown are not clear. In CBO’s projections, offsetting receipts) and totaled $1.0 trillion, or 5.4 percent spending per enrollee in federal health care programs of GDP. In CBO’s baseline projections (excluding the grows more rapidly over the coming decade than it has effects of shifts in the timing of certain payments), that in recent years, but it does not return to the higher rates spending increases by $35 billion, or 3.4 percent, in 2018; of growth that were experienced before the slowdown. from 2019 to 2028, it increases at an average rate of about 6 percent per year, reaching $2.0 trillion, or 6.6 percent of The effects on federal spending of those two long- GDP, by the end of that period. term trends are already apparent over the 10-year Medicare. Outlays for Medicare, a program that pro- 5. A timing shift with effects of a similar magnitude occurred vides subsidized medical insurance to the elderly and to from 2017 into 2016; the net effect of the two timing shifts on some people with disabilities, account for about half of mandatory spending in 2017 was small, increasing outlays by the projected increase in outlays for major health care $3 billion. programs in 2018 and about two-thirds of the growth 6. Mandatory spending as a share of GDP is projected to grow in such outlays through 2028. CBO estimates that more slowly in the near term largely because GDP is projected to Medicare spending (net of offsetting receipts—mostly grow faster in 2019 and 2020 than later in the projection period. The growth in nominal mandatory spending is slightly slower in in the form of premiums paid by beneficiaries—and the first two years than later in the projection period. adjusted to exclude the effects of timing shifts) will grow CHAPTER 2: THE SPENDING OUTLOOK The Budget and Economic Outlook: 2018 to 2028 51 by 3 percent in 2018, much more slowly than in most 5 percent because of increasing per capita costs), closer to recent years. That slower growth is attributable to higher historical growth levels. receipts from premiums.7 Enrollment is projected to increase by 2.7 percent in 2018, a rate just slightly higher Health Insurance Subsidies and Related Spending. Outlays than the 2.6 percent rate of increase recorded last year. for health insurance subsidies and related spending are estimated to increase by $10 billion, or 21 percent, in Over the 2019–2028 period, Medicare outlays are 2018.8 That jump mostly stems from an average increase projected to increase by an average of 7 percent per year, of 34 percent in premiums for the second-lowest-cost driven by the rising per-beneficiary costs of medical care. “silver” plan in health insurance marketplaces established Cost growth accounts for nearly 5 percentage points of under the Affordable Care Act. (Those premiums are the that increase, and growing enrollment accounts for the benchmark for determining subsidies for plans obtained rest. By 2028, projected net outlays for Medicare grow to through the marketplaces.) Over the 2019–2028 period, $1.2 trillion. the average growth in spending is projected to lessen considerably, to just under 5 percent per year, as Medicaid. Spending for Medicaid, a joint federal and per-beneficiary spending rises with the costs of providing state program that funds medical care for certain low-in- medical care. CBO estimates that, under current law, come, elderly, and disabled people, is estimated to outlays for health insurance subsidies and related spend- increase by 2 percent, or $9 billion, in 2018. That rate of ing would rise by about 60 percent over the projection growth is one of the slowest since 2012, when provisions period, increasing from $58 billion in 2018 to $91 bil- in the American Recovery and Reinvestment Act of 2009 lion by 2028. (P.L. 111-5) that increased the federal government’s share of Medicaid spending expired and federal spending on Children’s Health Insurance Program. CHIP is a program the program fell. Flattening growth in enrollment (which financed jointly by states and the federal government had picked up considerably after Medicaid eligibility was that provides health insurance coverage to children in expanded by the Affordable Care Act) and slow growth families whose income, although modest, is too high in per capita costs largely explain the smaller increase for them to qualify for Medicaid. CBO estimates that in spending in 2018 compared with earlier years. After outlays for CHIP will be about $500 million lower in 2018, outlays for the program are projected to grow 2018 than in 2017, primarily because of unusually high at an average rate of about 5.5 percent per year (about spending at the end of last year: Some states drew down 1 percent because of increasing enrollment and nearly additional funds for the program in 2017, probably in anticipation of the scheduled expiration of its authori- zation at the end of that year. (Funding for the program 7. The jump in receipts from premiums stems largely from increases has since been reauthorized through 2027.)9 Federal in how much many beneficiaries will actually pay for their spending for CHIP is projected to decline through premium for Medicare Part B, which covers physicians’ services 2021 because the average federal matching rate for the and other outpatient care. The basic Part B premium is the program is scheduled to decrease from 93 percent in same in 2018 as it was in 2017 ($134 per month). However, 2018 to 70 percent in 2021 and subsequent years. After about two-thirds of Part B enrollees did not pay the full $134 in 2017 because of a “hold-harmless” provision, which limits the 2021, spending on the program is projected to grow by increase in a beneficiary’s payment for the Part B premium to about 3 percent per year, principally because of increas- the increase in that beneficiary’s Social Security benefit. (Most ing costs per enrollee. Medicare enrollees have their Part B premium withheld from their monthly Social Security benefit.) With an increase in Social Security benefits in 2018, many Medicare beneficiaries will 8. These subsidies lower the cost of health insurance purchased pay more or all of the full Part B premium; in fact, most of the through marketplaces by people who meet income and other total increase in Social Security benefits for those beneficiaries criteria for eligibility. The related spending consists of outlays will go toward Part B premiums. CBO estimates that about for risk adjustment and reinsurance, and grants to states for half of the beneficiaries who paid less than the full premium in establishing health insurance marketplaces. 2017 will again have their payments held down by the hold- harmless provision in 2018—that is, all of the increase in their 9. The Congress extended CHIP’s authorization through 2023 in Social Security benefits will go toward the Part B premium. The the HEALTHY KIDS Act of 2017 (P.L. 115-120) and further remaining beneficiaries are seeing some increase in take-home extended it through 2027 in the Bipartisan Budget Act of 2018 Social Security benefits even after they pay the full $134. (P.L. 115-123). 52 The Budget and Economic Outlook: 2018 to 2028 April 2018 Income Security. Mandatory spending related to income purchase food. CBO expects that outlays for SNAP will security includes outlays for certain refundable tax decrease slightly in 2018 because of continued declines credits, the Supplemental Nutrition Assistance Program in participation since the recent (post-recession) peak in (SNAP), Supplemental Security Income (SSI), unem- 2013. ployment compensation, and certain programs that support children and families. Excluding the effects In CBO’s projections, participation rates continue to of a shift in the timing of $4 billion in SSI payments, decline through 2028 until they return to rates seen projected spending in this category rises by 1.5 percent, just before the 2007–2009 recession. However, because from $294 billion in 2017 to $298 billion in 2018 (or decreased outlays from lower participation are expected 1.5 percent of GDP). Over the 2019–2028 period, total to be offset by projected increases in the cost of food mandatory spending for income security is projected to (which SNAP benefits are linked to), projected outlays grow by an average of 2 percent per year, which is slower for the program remain roughly constant from 2020 than GDP is projected to grow. As a result, by 2028, through 2024. In 2025, projected spending on the pro- such outlays are projected to shrink to 1.2 percent of gram begins to rise as the decline in participation mod- GDP. erates but the price of food continues to grow. By 2028, CBO projects, outlays for SNAP, under current law, Earned Income, Child, and Other Tax Credits. Refundable would equal the amount spent in 2017—$70 billion. tax credits reduce a filer’s overall income tax liability; if the credit exceeds the filer’s income tax liability, the Supplemental Security Income. SSI provides cash benefits government pays all or some portion of that excess to the to people with low income who are elderly or disabled. taxpayer.10 Those payments are categorized as outlays. CBO estimates that spending for SSI will fall by about $3 billion in 2018 because of the shift in the timing of Over the 2018–2028 period, projected outlays for $4 billion in payments from 2018 to 2017. Without that refundable tax credits vary significantly. The refund- timing shift, outlays would rise by about $1 billion in able amounts of the credits are projected to jump 2018. In CBO’s baseline projections, outlays for the pro- from $87 billion in 2018 to $99 billion in 2019, gram grow by 3 percent per year on average. Projected mostly because Public Law 115-97, referred to here COLAs account for much of that growth. By 2028, as the 2017 tax act, expands the child tax credit (see without changes to current law, projected spending for Appendix B). In addition, the 2017 tax act temporarily SSI reaches $81 billion, or $75 billion if the effects of reduces tax liabilities, thereby increasing outlays for the timing shifts are excluded. refundable portion of certain tax credits. Unemployment Compensation. The federal-state unem- After remaining close to $100 billion a year for much of ployment compensation program provides benefits to the coming decade, projected outlays for the tax credits people who lose their jobs through no fault of their own, fall to $88 billion in 2027, after many provisions in the are actively seeking work, and meet other criteria estab- 2017 tax act will have expired under current law, decreas- lished by the laws in their states. CBO expects spending ing the amount of the child tax credit and increasing tax on the program to decline by $1 billion in 2018 as a liabilities for most people. (However, those outlays are result of lower unemployment—the effects of which are lower than they would have been prior to the 2017 tax partly offset by expected wage growth over the projection act because one provision of the act that lowers out- period, which increases average unemployment benefits. lays—a change in the measure of inflation used to adjust In CBO’s projections, the unemployment rate continues tax parameters, including tax brackets—does not expire to drop in 2019, then rises through 2027. Outlays for under current law.) unemployment compensation follow that pattern: Such spending declines through 2019, then increases through Supplemental Nutrition Assistance Program. SNAP pro- 2028, reaching $59 billion—nearly double the $30 bil- vides benefits to help people in low-income households lion in outlays estimated for the current year. Family Support, Foster Care, and Child Nutrition 10. For more information, see Congressional Budget Office, Refundable Tax Credits (January 2013), www.cbo.gov/ Programs. Spending for programs that support children publication/43767. and families, such as the Temporary Assistance for Needy CHAPTER 2: THE SPENDING OUTLOOK The Budget and Economic Outlook: 2018 to 2028 53 Families (TANF) program and school lunch programs, Other Mandatory Programs. The remainder of man- grows in CBO’s baseline by about 2 percent per year, on datory spending encompasses a number of other activ- average. Funding for some programs, including TANF, is ities, including agricultural programs, net outlays for capped, whereas funding for other programs, including deposit insurance, health care benefits for retirees of school lunch programs, is projected to grow with infla- the uniformed services and their dependents and sur- tion and participation. In CBO’s projections, outlays for viving spouses, cash transfers to and from Fannie Mae all such programs increase from $56 billion in 2018 to and Freddie Mac, and loans and other programs related $72 billion in 2028. to higher education. Together, those outlays totaled $130 billion last year but are estimated to drop to Civilian and Military Retirement. Retirement and $97 billion in 2018. That decrease is primarily driven survivors’ benefits for most federal civilian employees by revisions to the estimated subsidy costs of outstand- (along with benefits provided through several smaller ing loans recorded by the Department of Education.11 retirement programs for employees of various govern- In 2017, such revisions boosted outlays by $39 billion, ment agencies and for retired railroad workers) are whereas in 2018, CBO estimates, they will reduce estimated to cost $105 billion in 2018, the same amount outlays by $9 billion. The $48 billion decrease in outlays as in 2017. Under current law, such outlays would grow over the two years is partially offset by an estimated by nearly 4 percent annually over the projection period, increase of $11 billion in mandatory outlays related to CBO estimates, reaching $151 billion in 2028. The hurricane relief efforts in 2018. Altogether, over the projected growth in federal civil service retirement ben- 2018–2028 period, spending on these other mandatory efits is attributable primarily to COLAs for retirees and programs is projected to increase by a total of about to increases in federal salaries, which boost benefits for $5 billion, or about 5 percent. people entering retirement. Offsetting Receipts. Offsetting receipts are funds The federal government also provides annuities to retired collected by federal agencies from other government military personnel and their survivors. Outlays for those accounts or from the public in businesslike or market­ annuities totaled $58 billion in 2017; in 2018, they are oriented transactions that are recorded as negative projected to dip to $54 billion, but that estimate rises outlays (that is, as credits against direct spending). Such to $59 billion if the effects of timing shifts are removed. receipts include Medicare beneficiaries’ premiums, Most of the projected annual growth in those outlays intragovernmental payments made by federal agencies over the 2019–2028 period results from COLAs and for their employees’ retirement benefits, royalties and increases in military basic pay. Excluding the effects of other charges for the production of oil and natural gas shifts in the timing of payments of some annuities, out- on federal lands, proceeds from sales of timber harvested lays for military retirement benefits are projected to grow and minerals extracted from federal lands, payments to by an average of 3 percent per year, reaching $79 billion the Treasury by Fannie Mae and Freddie Mac (for 2017 in 2028. Veterans’ Programs. Mandatory spending for veterans’ 11. CBO calculates the subsidy costs for student loans following the benefits includes disability compensation, readjustment procedures specified in the Federal Credit Reform Act of 1990 benefits, pensions, insurance, housing assistance, and (FCRA). Under FCRA, the discounted present value of expected burial benefits. Excluding the effects of shifts in the tim- income from federal student loans issued during the 2018– ing of certain payments, outlays for those benefits totaled 2028 period is projected to exceed the discounted present value $104 billion (of which roughly 80 percent represented of the government’s costs. (A present value is a single number disability compensation) in 2017 and are estimated to that expresses a flow of current and future income or payments in terms of an equivalent lump sum received or paid at a specific rise to $107 billion in 2018. That total does not include time; the present value depends on the rate of interest—known as most federal spending for veterans’ health care, which the discount rate—that is used to translate future cash flows into is funded through discretionary appropriations. CBO current dollars.) Credit programs that produce net income rather projects that under current law, mandatory spending than net outlays are said to have negative subsidy rates, which for veterans’ benefits would grow at an average rate of result in negative outlays. The original subsidy calculation for a set of loans or loan guarantees may be increased or decreased about 4 percent per year over the next decade, reaching in subsequent years by a credit subsidy reestimate that reflects $156 billion in 2028 (excluding shifts in the timing of an updated assessment of the cash flows associated with the some payments). outstanding loans or loan guarantees. 54 The Budget and Economic Outlook: 2018 to 2028 April 2018 and 2018 only), and various fees paid by users of public predate that act and have current-year outlays greater property and services.12 than $50 million are assumed to continue in CBO’s baseline projections. Whether programs established CBO estimates that offsetting receipts will dip slightly after 1997 are assumed to continue is determined on this year, from $253 billion in 2017 to $252 billion in a program-by-program basis, in consultation with the 2018. That decline is the result of two factors with coun- House and Senate Budget Committees. tervailing effects. First, CBO estimates that remittances to the Treasury from Fannie Mae and Freddie Mac will CBO’s baseline projections therefore incorporate the decrease by $23 billion. About two-thirds of that reduc- assumption that the following programs whose authori- tion is from write-downs the entities took on their tax-de- zation expires within the current projection period will ferred assets in response to the 2017 tax act; in addition, continue: SNAP, TANF, the Child Care Entitlement to the Federal Housing Finance Agency and the Treasury States, rehabilitation services, child nutrition programs, Department recently directed the entities to increase their some transporation programs, the Trade Adjustment capital reserves, which means they will remit less in order Assistance program for workers, family preservation to meet that goal. Second, other offsetting receipts are and support programs, CHIP, and most farm subsidy estimated to be about $22 billion higher in 2018 than programs. In addition, the Deficit Control Act directs in 2017, largely as a result of a $13 billion increase in CBO to assume that a COLA for veterans’ compensa- receipts of Medicare beneficiaries’ premiums. tion will be granted each year. In CBO’s projections, the assumption that expiring programs and veterans’ COLAs After 2018, offsetting receipts are projected to grow by will continue accounts for about $1.1 trillion in outlays an average of about 5 percent per year, from $260 billion between 2019 and 2028, most of which are for SNAP in 2019 to $406 billion in 2028. Growth in receipts and TANF (see Table 2-3 on page 56). That amount of Medicare premiums, which is projected to average represents about 3 percent of all mandatory spending. almost 8 percent per year, accounts for nearly 90 percent of that increase. Discretionary Spending An array of federal activities is funded or controlled Assumptions About Expiring Programs through annual appropriations. Such discretionary In keeping with the rules established by the Deficit spending, which CBO estimates will account for about Control Act, CBO’s baseline projections incorporate 30 percent of total outlays in 2018, includes most the assumption that some mandatory programs will be spending on national defense, elementary and secondary extended when their authorization expires, although education, housing assistance, international affairs, and the rules provide for different treatment of programs the administration of justice, as well as outlays for trans- created before and after the Balanced Budget Act of portation and other programs. 1997 (P.L. 105-33). All direct spending programs that How Caps on Discretionary Funding Affect CBO’s Projections 12. Because the government placed Fannie Mae and Freddie Mac into conservatorship in 2008 and now controls their operations, Most discretionary funding is limited by caps on annual CBO considers their activities governmental and includes the discretionary appropriations that were originally specified budgetary effects of their activities in its projections as if they in the Budget Control Act of 2011 (P.L. 112-25) and were federal agencies. On that basis, for the 10-year period after modified by subsequent legislation. Under current law, the current fiscal year, CBO projects the subsidy costs of their separate caps exist for defense and nondefense spend- new activities using procedures that are similar to those specified in the Federal Credit Reform Act of 1990 for determining the ing through 2021. If the total amount of discretionary costs of federal credit programs—but with adjustments to reflect funding provided in appropriation acts for a given year the associated market risk. The Administration, by contrast, exceeds the cap for either category, the President must considers Fannie Mae and Freddie Mac to be outside the federal sequester—or cancel—a sufficient amount of new government for budgetary purposes and records cash transactions budget authority (following procedures specified in the between them and the Treasury as federal outlays or receipts. As Budget Control Act) to eliminate the breach.13 a result, in its baseline projections, CBO treats only the current fiscal year in the same manner as the Administration in order to provide its best estimate of the amount that the Treasury 13. The authority to determine whether a sequestration is required ultimately will report as the federal deficit for 2018. Similarly, (and, if so, exactly how to make the necessary cuts in budget to match the Administration’s historical budget totals, CBO also authority) rests with the Administration’s Office of Management uses the Administration’s treatment for past years. and Budget. CHAPTER 2: THE SPENDING OUTLOOK The Budget and Economic Outlook: 2018 to 2028 55 CBO’s projections for discretionary funding incorporate 2019 under the Budget Control Act (as modified).17 As those limits and are formulated following principles a result, overall limits on discretionary budget authority and rules that are largely set in law. In accordance with total $1,208 billion in 2018, rise to $1,244 billion (a section 257 of the Deficit Control Act, CBO starts 3 percent increase) in 2019, and then fall to an esti- projections for individual accounts with the most recent mated $1,118 billion (a 10 percent reduction) in 2020, appropriation and applies the appropriate inflation rate when limits return to the lower levels set by the Budget to project funding for future years.14 After account- Control Act (see Table 2-4 on page 58). They then rise level projections of discretionary funding are made, the to $1,145 billion (a 2 percent increase) in 2021, CBO total amount of budget authority is adjusted to comply estimates, the last year the caps are in place under current with the caps on discretionary funding through 2021. law. (CBO does not adjust each account because, although the total amount of spending is constrained by the caps, All told, discretionary budget authority in CBO’s individual accounts themselves are not.) Projections for baseline projections follows a pattern similar to that of years after 2021 reflect the assumption that discretionary the caps through 2021 and then increases gradually, to funding keeps pace with inflation. account for inflation, through 2028. Outlays that arise from that budget authority generally follow the same In addition, some or all of the discretionary funding trend but more gradually, because of the delay between related to five types of activities is not constrained by the when funding is provided and when it is spent. Outlays caps (instead, for most of those activities, the caps are can occur over short periods (to pay salaries, for exam- adjusted to accommodate such funding, up to certain ple) or longer ones (for example, to pay for long-term limits) and is generally assumed to grow with inflation research or construction). Therefore, discretionary out- after 2018.15 Specifically, appropriations designated for lays estimated for each year represent a mix of spending overseas contingency operations (OCO) and activities stemming not only from new budget authority but also designated as emergency requirements are assumed to from prior appropriations. Increases in outlays are partic- grow with inflation.16 For two other activities—certain ularly likely to lag behind increases in budget authority efforts to reduce overpayments in benefit programs, when the latter are large or occur well after the beginning and disaster relief—the extent to which the caps can be of a fiscal year. adjusted is subject to annual constraints, as specified in law. Finally, programs designated by the 21st Century CBO’s Baseline Projections of Discretionary Cures Act (P.L. 114-225) are not subject to the caps, but Spending in 2018 their total funding is subject to specified annual limits. If no more appropriations are enacted for 2018, dis- cretionary funding will total $1,422 billion this year, The recently enacted Bipartisan Budget Act of 2018 CBO estimates, including $197 billion for activities (P.L. 115-123) increased, by $143 billion and $152 bil- that permit adjustments to the funding caps.18 The lion, respectively, limits on discretionary funding that remaining amount—$1,225 billion—is $17 billion otherwise would have been in place for 2018 and more than the overall limit on discretionary funding for 2018; that excess occurs because certain provisions in 14. In CBO’s baseline projections, discretionary funding related to the Consolidated Appropriations Act, 2018, are esti- federal personnel is inflated using the employment cost index mated to reduce net funding for mandatory programs by for wages and salaries of workers in private industry; other $17 billion. When appropriation acts include changes discretionary funding is adjusted using the gross domestic that reduce mandatory funding, the savings are credited product price index. against the discretionary funding provided by those acts 15. Spending for certain transportation programs is controlled by obligation limitations, which also are not constrained by the caps 17. For more information about the discretionary caps, see on discretionary funding and are assumed to grow with inflation. Congressional Budget Office, Final Sequestration Report for Fiscal Year 2018 (April 2018), www.cbo.gov/publication/53696. 16. Overseas contingency operations refer to certain military and diplomatic activities in Afghanistan and elsewhere, but some 18. The $1,422 billion total includes CBO’s estimates of some designated OCO funding has not been directly related to components of discretionary funding—for example, market- those activities. Funding that is categorized as an emergency driven fees that are credited as offsets to discretionary requirement is funding designated in statute pursuant to section appropriations. However, the bulk of discretionary funding 251(b)(2)(A)(i) of the Deficit Control Act. consists of specified appropriations. 56 The Budget and Economic Outlook: 2018 to 2028 April 2018 Table 2-3 . Costs for Mandatory Programs That Continue Beyond Their Current Expiration Date in CBO’s Baseline Billions of Dollars Total 2019– 2019– 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2023 2028 Supplemental Nutrition Assistance Program Budget authority 0 66 65 65 65 65 65 66 67 69 70 326 664 Outlays 0 63 65 65 65 65 65 66 67 69 70 323 661 Temporary Assistance for Needy Families Budget authority 0 17 17 17 17 17 17 17 17 17 17 87 173 Outlays 0 13 16 16 17 17 17 17 17 17 17 79 165 Veterans' Compensation COLAs Budget authority 0 3 6 8 11 13 16 19 22 25 28 41 150 Outlays 0 3 5 8 11 13 15 19 22 25 30 41 150 Commodity Credit Corporation a Budget authority 0 * 2 9 10 10 10 11 11 11 11 30 85 Outlays 0 * 1 9 9 9 10 10 11 11 11 28 82 Child Care Entitlements to States Budget authority 0 3 3 3 3 3 3 3 3 3 3 15 29 Outlays 0 2 3 3 3 3 3 3 3 3 3 14 28 Rehabilitation Services Budget authority 0 0 0 0 0 4 4 4 4 4 4 4 25 Outlays 0 0 0 0 0 2 4 4 4 4 4 2 22 Child Nutrition b Budget authority 0 1 1 1 1 1 1 1 1 1 1 4 10 Outlays 0 1 1 1 1 1 1 1 1 1 1 4 9 Ground Transportation Programs Not Subject to Annual Obligation Limitations Budget authority 0 0 0 1 1 1 1 1 1 1 1 2 6 Outlays 0 0 0 * * 1 1 1 1 1 1 1 5 Continued in judging their compliance with the caps. (Once in law, larger appropriations provided by the Consolidated however, any such savings are incorporated into CBO’s Appropriations Act, 2018, subject to the limits set in the baseline projections for mandatory spending.) Bipartisan Budget Act of 2018. The remainder consists of funding for activities not constrained by the caps, Altogether, discretionary budget authority in 2018 which is $63 billion (or 47 percent) greater than last exceeds last year’s funding by $202 billion, or nearly year. That increase primarily reflects historically large 17 percent.19 Of that increase, $139 billion reflects amounts of funding designated as an emergency require- ment, partially offset by lower funding for OCO. All 19. Much of the analysis in this report was prepared before the enactment of the Consolidated Appropriations Act, 2018 of the Bipartisan Budget Act of 2018 (P.L. 115-123). CBO (P.L. 115-141), on March 23, 2018. CBO incorporated the then adjusted amounts of defense and nondefense funding, in effects of that law into its budget projections in aggregate aggregate, separately for funding constrained by the caps and but could not incorporate the account-level detail of the other funding (mostly for OCO), by amounts necessary to bring 2018 discretionary funding that the law provided. Instead, them in line with the increased funding provided for 2018 by the CBO calculated, on an annualized basis, the amount of funding Consolidated Appropriations Act, 2018. As a result, subsequent provided for specific discretionary activities in 2018 under the account-level estimates of outlays for discretionary programs most recent continuing resolution, Subdivision 3 of Division B could differ from the projections in this report. CHAPTER 2: THE SPENDING OUTLOOK The Budget and Economic Outlook: 2018 to 2028 57 Table 2-3.Continued Costs for Mandatory Programs That Continue Beyond Their Current Expiration Date in CBO’s Baseline Billions of Dollars Total 2019– 2019– 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2023 2028 Trade Adjustment Assistance for Workers c Budget authority 0 0 0 0 0 * * * * 1 1 * 3 Outlays 0 0 0 0 0 * * * * * 1 * 2 Promoting Safe and Stable Families Budget authority 0 0 0 0 * * * * * * * 1 2 Outlays 0 0 0 0 * * * * * * * * 2 Ground Transportation Programs Controlled by Obligation Limitations d Budget authority 0 0 0 50 50 50 50 50 50 50 50 151 403 Outlays 0 0 0 0 0 0 0 0 0 0 0 0 0 Air Transportation Programs Controlled by Obligation Limitations d Budget authority 0 3 3 3 3 3 3 3 3 3 3 17 34 Outlays 0 0 0 0 0 0 0 0 0 0 0 0 0 Children's Health Insurance Program Budget authority 0 0 0 0 0 0 0 0 0 0 15 0 15 Outlays 0 0 0 0 0 0 0 0 0 0 0 0 0 Natural Resources Budget authority 0 0 0 0 0 0 0 0 0 0 0 0 0 Outlays 0 0 * * * 0 0 0 0 0 0 * * Total Budget authority 0 94 97 158 161 168 172 176 181 186 206 678 1,599 Outlays 0 82 91 102 106 111 116 122 127 131 139 492 1,126 Source: Congressional Budget Office. COLAs = cost-of-living adjustments; * = between -$500 million and $500 million. a.Agricultural commodity price and income supports and conservation under the Agricultural Act of 2014 generally expire after 2018. Although permanent price support authority under the Agricultural Adjustment Act of 1938 and the Agricultural Act of 1949 would then become effective, CBO adheres to the rule in section 257(b)(2)(ii) of the Deficit Control Act that indicates that the baseline should assume that the provisions of the Agricultural Act of 2014 remain in effect. b.Includes the Summer Food Service program and states’ administrative expenses. c.Does not include the cost of extending Reemployment Trade Adjustment Assistance. d.Authorizing legislation for those programs provides contract authority, which is counted as mandatory budget authority. However, because the programs’ spending is subject to obligation limitations specified in annual appropriation acts, outlays are considered discretionary. told, CBO estimates that discretionary outlays will total defense appropriations and a net $11 billion reduction $1,280 billion in 2018 (6.4 percent of GDP), $80 bil- in funding for OCO and other activities that are not lion (or nearly 7 percent) more than in 2017. constrained by that limit. Outlays for defense programs are expected to rise by $32 billion (or 5 percent) in 2018 Defense Spending. CBO estimates that defense funding to a total of $622 billion (or 3.1 percent of GDP). in 2018 will total $701 billion—$67 billion (or almost 11 percent) more than in 2017. That rise reflects a Nondefense Spending. Funding for nondefense $78 billion increase in funding subject to the limit on activities in 2018 will total $721 billion, by CBO’s 58 The Budget and Economic Outlook: 2018 to 2028 April 2018 Table 2-4 . Discretionary Spending Projected in CBO’s Baseline Billions of Dollars Total Actual, 2019– 2019– 2017 a 2018 a 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2023 2028 Budget Authority Defense 634 701 719 651 666 683 699 717 734 752 771 789 3,419 7,182 Nondefense 586 721 724 671 687 704 721 739 757 775 794 814 3,507 7,385 Total 1,220 1,422 1,443 1,322 1,353 1,386 1,420 1,455 1,491 1,527 1,565 1,603 6,925 14,567 Outlays Defense 590 622 669 651 655 671 679 688 710 727 745 769 3,325 6,964 Nondefense 610 658 693 689 693 708 727 748 771 794 817 839 3,511 7,480 Total 1,200 1,280 1,362 1,340 1,348 1,380 1,406 1,436 1,481 1,522 1,562 1,608 6,836 14,445 Memorandum: Caps in the Budget Control Act (As Amended), Including Automatic Reductions to the Caps Defense 551 629 647 576 590 n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a. Nondefense 519 579 597 542 555 n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a. Total 1,070 1,208 1,244 1,118 1,145 n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a. Adjustments to the Caps b Defense 83 72 73 75 76 n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a. Nondefense 51 125 127 129 132 n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a. Total  134 197 200 204 209 n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a. n.a. Source: Congressional Budget Office. CBO’s baseline projections incorporate the assumption that the caps on discretionary budget authority and the automatic enforcement procedures specified in the Budget Control Act of 2011 (as amended) remain in effect through 2021. Nondefense discretionary outlays are usually greater than budget authority because of spending from the Highway Trust Fund and the Airport and Airway Trust Fund that is subject to obligation limitations set in appropriation acts. The budget authority for such programs is provided in authorizing legislation and is not considered discretionary. n.a. = not applicable. a.The amount of budget authority for 2017 and for 2018 in CBO’s baseline does not match the sum of the spending caps plus adjustments to the caps, mostly because changes to mandatory programs included in the appropriation acts for those years were credited against the caps. In the baseline, those changes (which reduced mandatory budget authority in both years) appear in their normal mandatory accounts. b.Some or all of the discretionary funding related to five types of activities is not constrained by the caps; for most of those activities, the caps are adjusted to accommodate such funding, up to certain limits. Specifically, appropriations designated for overseas contingency operations and activities designated as emergency requirements are assumed to grow with inflation after 2018. For two other activities—certain efforts to reduce overpayments in benefit programs, and disaster relief—the extent to which the caps can be adjusted is subject to annual constraints, as specified in law. Finally, programs designated by the 21st Century Cures Act are not subject to the caps, but their total funding is subject to specified annual limits. estimation—$135 billion (or 23 percent) more than last • Most of that added funding—nearly $125 billion—is year.20 That amount is $142 billion more than the statu- not constrained by the limit, including $102 billion tory limit on nondefense funding for this year: designated as an emergency requirement related to hurricanes Harvey, Irma, and Maria and wildfires 20. In addition, transportation-related obligation limitations enacted for 2018 total $59 billion. CHAPTER 2: THE SPENDING OUTLOOK The Budget and Economic Outlook: 2018 to 2028 59 Figure 2-3 . Discretionary Nondefense Funding for Emergency Requirements Billions of Dollars 120 Actual Projected 100 80 Funding for emergency requirements in 2018—mainly related to hurricanes and 60 wildfires—is about nine times greater than the average annual amount over the 40 six years since the Budget Control Act of 2011 was enacted. 20 0 a 2012 2013 2014 2015 2016 2017 2018 Source: Congressional Budget Office. a. The amount of funding shown for 2018 does not include almost $18 billion in additional budget authority from changes to mandatory programs that also were designated as emergency requirements. in western states.21 (By comparison, from 2012 Altogether, CBO estimates that nondefense outlays through 2017, nondefense funding designated as an will total $658 billion this year (3.3 percent of GDP), emergency requirement averaged about $11 billion $48 billion, or almost 8 percent, more than in 2017. annually; see Figure 2-3.) Appropriations for other activities that are not subject to the overall limit on CBO’s Baseline Projections of Discretionary nondefense funding total $22 billion and consist of Spending From 2019 to 2028 $12 billion for OCO, slightly more than $7 billion Total discretionary outlays in CBO’s baseline projections for disaster relief, and $3 billion (in total) for increase by 6.4 percent in 2019, dip by 1.6 percent in program-integrity and health programs designated by 2020, remain about the same in 2021 and grow thereaf- the 21st Century Cures Act. ter, to $1,608 billion, or 5.4 percent of GDP, in 2028. By comparison, the lowest percentage of GDP for discre- • The remaining $17 billion in excess of the 2018 cap tionary spending over the past 50 years was 6.0 percent reflects larger gross appropriations that are offset in 1999, and the average over that time has been 8.5 per- by estimated reductions in budget authority for cent (see Figure 2-4). mandatory programs stemming from changes that were included in the Consolidated Appropriations Budget Authority in 2019. Caps on discretionary Act, 2018. budget authority will be $36 billion higher in 2019 than in 2018, reflecting an $18 billion increase to both the defense and nondefense limits. Projected increases in defense funding for 2019 total $18 billion. Projected 21. Total emergency funding in 2018 was more than $102 billion; that increases in nondefense funding are smaller, totaling amount does not include almost $18 billion in additional budget $3 billion. authority from changes to mandatory programs that also were designated as emergency requirements. The largest of the changes was the cancellation of $16 billion of the outstanding debt owed to The projected increase in nondefense funding consists the Treasury by the National Flood Insurance Fund. Because those of $2 billion for funding not constrained by the caps changes in mandatory programs were designated as emergency and $1 billion for funding constrained by the caps. In requirements, they did not affect the amount of discretionary accordance with rules set in law, the former increase funding allowed under the caps. CBO’s baseline projections for mandatory programs include the anticipated effects of the changes. reflects the assumption that the historically large amount 60 The Budget and Economic Outlook: 2018 to 2028 April 2018 Figure 2-4 . Discretionary Outlays, by Category Percentage of Gross Domestic Product 16 Actual Projected CBO’s projections of discretionary 12 spending incorporate budgetary caps Total through 2021 and the assumption that discretionary budget authority grows 8 with inflation thereafter. Defense Discretionary budget authority is projected to decline by 8 percent in 2020 4 because of scheduled reductions to the Nondefense caps. 0 1968 1973 1978 1983 1988 1993 1998 2003 2008 2013 2018 2023 2028 Source: Congressional Budget Office, using data from the Office of Management and Budget. of emergency funding for 2018 grows with inflation. assumption that such budget authority will grow with The latter increase reflects the net effects of an $18 bil- inflation beginning in 2022. lion increase in the nondefense limits and the fact that the Consolidated Appropriations Act, 2018, includes Alternative Assumptions About Discretionary $17 billion in offsets to discretionary budget authority Funding in 2018. Those offsets stem from estimated reductions If the policies governing discretionary funding differed in mandatory budget authority, which are typically from those underlying the baseline projections, discre- included in appropriation acts that provide nondefense tionary outlays could differ greatly from the amounts funding and allow discretionary funding to exceed the projected in CBO’s baseline. To illustrate such poten- cap.22 No such changes to mandatory programs have tial differences, CBO estimated the budgetary con- been enacted for 2019. sequences of three alternative paths for discretionary funding. (Those estimates are provided in Chapter 4.) Budget Authority in 2020 and Subsequent Years. In The first alternative reflects different assumptions about 2020, discretionary limits fall by an estimated $126 bil- future funding for emergency requirements. In the lion, resulting in a $121 billion (or 8 percent) net two other scenarios, funding for discretionary pro- reduction in overall budget authority. (That change grams in future years increases at rates different from includes a $4 billion projected increase in funding those CBO is required to use in its baseline projections not constrained by the caps.) In total, defense and (see Figure 2-5). nondefense funding fall, respectively, by $68 billion (or almost 10 percent) and $52 billion (or 7 percent). Emergency Spending. CBO projected spending In the baseline projections, discretionary budget assuming that nondefense funding designated as authority after 2020 rises by 2.4 percent a year, on emergency requirements would remain in line with average, reflecting both the rate of increase in the caps the average amount of such funding over the 2012– in 2021 pursuant to the Budget Control Act and the 2017 period—$11 billion (with adjustments to reflect growth at the rate of inflation)—rather than the his- torically large amount provided for 2018. Under that scenario, holding all other projections unchanged from 22. Since 2012, such offsets to discretionary budget authority have averaged about $18 billion per year, thus allowing discretionary CBO’s baseline, discretionary outlays over the 2019– funding in each year to exceed the statutory limits by about that 2028 period would total $577 billion (or 4 percent) less amount. CHAPTER 2: THE SPENDING OUTLOOK The Budget and Economic Outlook: 2018 to 2028 61 Figure 2-5 . Discretionary Budget Authority Projected in CBO’s Baseline and Under Two Alternative Scenarios Billions of Dollars 2,000 Grows With Inflation After 2018 1,600 Discretionary funding in future years 1,200 Baseline could be more or less than the amounts Frozen at 2018 Amount in CBO’s baseline projections, which reflect the assumption that funding for 800 2019 through 2021 will adhere to the current-law caps and grow with inflation 400 after that. 0 2017 2019 2021 2023 2025 2027 Source: Congressional Budget Office. than the amounts projected in the baseline. In 2028, The second other scenario reflects the assumption that discretionary outlays would equal 5.1 percent of GDP— most discretionary budget authority, transportation­ significantly less than the 6.4 percent estimated for 2018. related obligation limitations, and funding for activities that are not constrained by the caps would be kept at Other Discretionary Spending. For the first of the two the nominal 2018 amounts for the entire projection other alternative scenarios, CBO assumed that most period.24 (Such scenarios are sometimes called freezes discretionary funding constrained by the caps would in regular appropriations.) In that case, total discretion- grow at the rate of inflation after 2018, rather than being ary spending would dip below the amount in CBO’s adjusted to accord with the caps for 2019 and the lower baseline in 2019, exceed baseline amounts between limits that will otherwise apply to funding for 2020 and 2020 and 2023, and again drop below the baseline 2021 under the Budget Control Act (as modified).23 (by increasing sums) between 2024 and 2028. Over If that occurred, discretionary funding over the 2019– the 2019–2028 period, discretionary outlays would be 2028 period would grow, on average, by 2.6 percent a $175 billion (or about 1 percent) less than projected in year. As a result, outlays would rise at a slightly faster the baseline and would fall to 4.9 percent of GDP in rate (7 percent) in 2019 than in the baseline and would 2028—well below the percentage estimated for 2018 in grow by 5 percent (rather than fall) in 2020. They would CBO’s baseline. increase steadily thereafter, by an average of 3 percent per year through 2028. In that scenario, outlays would Net Interest surpass CBO’s baseline projections by $1.7 trillion In the budget, net interest primarily encompasses the (or nearly 12 percent) over the 2019–2028 period. In government’s interest payments on federal debt, offset 2028, discretionary spending would equal 6.2 percent by income that the government receives from inter- of GDP—slightly less than the percentage estimated for est on loans. Outlays for net interest are dominated 2018 in CBO’s baseline. by the interest paid to holders of the debt that the Department of the Treasury issues to the public. The Treasury also pays interest on debt issued to trust funds and other government accounts, but such payments are 23. This scenario would not affect spending for activities that are not constrained by discretionary spending limits under the Budget 24. Some items, such as offsetting collections and payments made by Control Act, including transportation programs controlled by the Treasury on behalf of the Department of Defense’s TRICARE obligation limitations. for Life program, would not be held constant. 62 The Budget and Economic Outlook: 2018 to 2028 April 2018 intragovernmental transactions that have no effect on the interest rate on 10-year Treasury notes is projected the budget deficit. (For more information about federal to rise from its current rate of 2.9 percent to 4.2 percent debt, see Chapter 4.) Other federal accounts also pay and in 2021 and then decline to 3.7 percent in 2024, where receive interest for various reasons.25 it is projected to remain through 2028. (For a more detailed discussion of CBO’s forecast for interest rates, CBO estimates that outlays for net interest will increase see the section on “Monetary Policy and Interest Rates” from $263 billion in 2017 to $316 billion (or 1.6 per- in Chapter 1.) cent of GDP) in 2018 and then nearly triple by 2028, climbing to $915 billion. As a result, under current law, Uncertainty Surrounding the Spending outlays for net interest are projected to reach 3.1 percent Outlook of GDP in 2028—almost double what they are now. Budget projections are inherently uncertain, and even if no changes were made to current law, actual outcomes Although several factors affect the federal government’s would undoubtedly differ in some ways from CBO’s pro- net interest costs—such as the rate of inflation for jections. The agency attempts to construct its spending Treasury inflation-protected securities and the maturity projections so that they fall in the middle of the distribu- structure of outstanding securities (for example, lon- tion of possible outcomes. Hence, actual spending could ger-term securities generally yield higher interest)—its turn out to be higher or lower than CBO projects. primary drivers are the amount of debt held by the pub- lic and interest rates on Treasury securities. In 2017, CBO examined the accuracy of its past pro- jections, specifically focusing on the second year (often The increase in federal borrowing projected in the base- called the budget year, which usually begins about six line is a significant factor affecting the projected growth months after the projections are released) and the sixth in net interest costs. Debt held by the public is projected year of the projection period. In both cases, although to rise by 83 percent (in nominal terms) over the next the agency’s spending projections were generally close 11 years, increasing from $15.7 trillion at the end of to actual amounts, they were too high, on average.26 2018 to $28.7 trillion in 2028. From 1984 to 2016, the mean absolute error—that is, the average of all errors without regard for whether they The projected large increase in interest costs over the were positive or negative—was 2.3 percent for CBO’s next decade is also affected significantly by the increase budget-year projections and 5.9 percent for the sixth- in interest rates underlying CBO’s baseline projections. year projections. Percentage errors of those sizes would Those rates rise quickly over the next several years before equal $103 billion in 2019 and $322 billion in 2023. falling during the second half of the forecast. The rate CBO continually examines errors in its past projections, paid on 3-month Treasury bills is anticipated to increase reviews data on spending patterns for federal programs, from an average of 1.6 percent in 2018 to 3.8 percent in and consults with outside experts on those programs in 2021 before falling back to 2.8 percent in 2024, about order to improve its estimating methodology. where it is projected to remain through 2028. Similarly, 26. Those comparisons reflect adjustments to exclude the effects of legislation enacted after the projections were prepared. See 25. See Congressional Budget Office, Federal Debt and Interest Costs Congressional Budget Office, An Evaluation of CBO’s Past Outlay (December 2010), www.cbo.gov/publication/21960. Projections (November 2017), www.cbo.gov/publication/53328. CHAPTER 3 Chapter 3 The Revenue Outlook Overview expiration of temporary provisions enacted in the The Congressional Budget Office projects that, if current 2017 tax act. In addition to those expirations, other laws generally remain unchanged, total revenues will rise factors would cause receipts to grow throughout by less than 1 percent in 2018, to just over $3.3 trillion. the next decade, primarily the following: Wages are Revenues are expected to decline as a percentage of gross projected to grow faster than GDP; real bracket domestic product (GDP)—from 17.3 percent in 2017 to creep (which occurs when incomes rise faster than 16.6 percent in 2018—below the average of 17.4 percent inflation) is projected to cause income to be taxed at of GDP recorded over the past 50 years (see Figure 3-1). higher rates, boosting taxes relative to income; and In CBO’s baseline projections, after a further slight distributions from tax-­ eferred retirement accounts d decline in 2019, revenues rise markedly as a share of the are expected to rise. economy, growing to 18.5 percent of GDP by 2028. Revenues over the past 50 years have been as high as • Corporate income tax receipts are projected to rise as 20.0 percent of GDP (in 2000) and as low as 14.6 per- a percentage of GDP after 2018 for two reasons. cent (in 2009 and 2010). First, changes in tax rules that are scheduled to occur over the next decade would gradually boost receipts. What Key Factors Explain Changes in Revenues Second, CBO expects that the factors responsible Over Time? for recent unexplained weakness in corporate tax The decline in revenues as a percentage of GDP in 2018, collections will gradually dissipate. An anticipated and to a lesser extent in 2019, results from the enact- decline in domestic economic profits relative to the ment in late December 2017 of Public Law 115–97, size of the economy would partially offset those referred to here as the 2017 tax act. That law made factors. many significant changes to the individual and corporate income tax systems. Those changes, on net, lowered taxes • Receipts from all other sources are projected to remain owed by most individuals and businesses beginning in relatively stable over the next decade. Revenues from calendar year 2018. Most of the provisions that directly payroll taxes are projected to edge up slightly as a affect the individual income tax are scheduled to expire share of the economy and receipts from excise taxes to at the end of 2025. (For additional details on the major decline slightly. provisions of that legislation, see Appendix B.) How Have CBO’s Projections Changed Since After 2019, revenues are projected to rise steadily June 2017? through 2025, reaching 17.5 percent of GDP in 2025. CBO’s revenue projections for the 2019–2028 period In CBO’s baseline, receipts then rise sharply following are lower than those the agency released in June 2017. the scheduled expiration of many temporary provisions At that time, CBO published revenue projections for the of the 2017 tax act at the end of calendar year 2025. As a 2017–2027 period; the projections in this report cover share of GDP, they are projected to reach 18.1 percent in the 2018–2028 period. For the overlapping years—2018 2026, and 18.5 percent in 2027 and 2028. through 2027—the current projections are below the previous ones by $1.0 trillion (or about 2 percent). That The growth in revenues over the next decade reflects the reduction stems from legislative changes, including those following movements among sources of revenues: from the enactment of the 2017 tax act, as well as from technical revisions. Those downward revisions are partly • Individual income tax receipts are projected to rise offset by changes to the agency’s economic forecast, sharply between 2025 and 2027, following the primarily to projections of GDP and the types of income 64 The Budget and Economic Outlook: 2018 to 2028 April 2018 Figure 3-1 . Total Revenues Percentage of Gross Domestic Product 25 Actual Projected Total Revenues 20 18.5 15 Under current law, total revenues are projected to rise as a share of Average, GDP over the next decade, largely 10 1966 to 2017 because of increases in individual (17.4%) income taxes. 5 0 1966 1971 1976 1981 1986 1991 1996 2001 2006 2011 2016 2021 2026 Source: Congressional Budget Office. GDP = gross domestic product. that comprise GDP, such as wages and salaries, corporate subsequent legislation.1 Those changes in law will gener- profits, and proprietors’ income. (For more information ally reduce the magnitude of tax expenditures beginning on changes to the revenue projections since June 2017, in 2018. see Appendix A.) How Uncertain Are CBO’s Revenue Projections? How Much Revenue Is Forgone Because of CBO’s revenue projections since 1982 have, on average, Tax Expenditures? been too high—more so for projections spanning six The tax rules that form the basis of CBO’s projections years than for those spanning two—owing mostly to the include an array of exclusions, deductions, preferential difficulty of predicting when economic downturns will rates, and credits that reduce revenues for any given occur. However, their overall accuracy has been similar to level of tax rates, in both the individual and corporate the accuracy of projections by other agencies. income tax systems. Some of those provisions are called tax expenditures because, like government spending The Evolving Composition of Revenues programs, they provide financial assistance for particular Federal revenues come from various sources: individual activities as well as to certain entities or groups of people. income taxes; payroll taxes, which are dedicated to cer- tain social insurance programs; corporate income taxes; Tax expenditures have a major impact on the federal excise taxes; earnings of the Federal Reserve System, budget. CBO estimates that in fiscal year 2017, the more than 200 tax expenditures in the income tax system 1. To arrive at an aggregate estimate of all tax expenditures in totaled almost $1.7 trillion in forgone individual income 2017, CBO began with the separate estimates of the individual tax, payroll tax, and corporate income tax revenues. That and corporate income tax expenditures produced by the staff amount equaled 8.9 percent of GDP—more than half of of the Joint Committee on Taxation. To those, CBO added the all federal revenues received in that year. CBO estimates payroll tax effects of provisions that reduce the payroll tax base. Finally, because a simple total of the estimates for specific tax the magnitude of tax expenditures on the basis of the expenditures does not account for the interactions among them estimates prepared by the staff of the Joint Committee if they are considered together, CBO estimated the size of those on Taxation (JCT), which has not yet released esti- interactions and included them to estimate the total budgetary mates incorporating the effects of the 2017 tax act and impact of tax expenditures. CHAPTER 3: THE REVENUE OUTLOOK The Budget and Economic Outlook: 2018 to 2028 65 which are remitted to the Treasury; customs duties; • Revenues from the remaining sources, particularly estate and gift taxes; and miscellaneous fees and fines. excise taxes, have slowly fallen relative to total Individual income taxes constitute the largest source revenues and GDP. However, that downward trend of federal revenues, having contributed, on average, has reversed in the past several years because of the about 46 percent of total revenues (equal to 8.0 percent increase in remittances from the Federal Reserve. of GDP) over the past 50 years. Payroll taxes—mainly for Social Security and Medicare Part A (the Hospital If current law generally remained in effect—an assump- Insurance program)—are the second‑largest source of tion underlying CBO’s baseline—individual income revenues, averaging 33 percent of total revenues (equal taxes would generate a growing share of revenues over to 5.8 percent of GDP) over the same period. Corporate the next decade, CBO projects. By 2026, they would income taxes constituted 11 percent of revenues (or account for more than half of total revenues, and 2.0 percent of GDP) over the past 50 years, and all other by 2028 they would reach 9.8 percent of GDP, well sources combined contributed about 9 percent of reve- above the average of 8.0 percent over the past 50 years. nues (or 1.7 percent of GDP). Receipts from payroll taxes are projected to remain relatively stable over the next decade. They would decline Although that broad picture has remained roughly the slightly relative to GDP, from 6.1 percent in 2017 to same over the past several decades, the details have varied. 5.8 percent in 2019, before rising gradually to 6.0 per- cent by 2028. Corporate income taxes would make a • Receipts from individual income taxes have fluctuated slightly smaller contribution than they have made on significantly over the past five decades, ranging from average for the past 50 years, supplying about 8.6 per- 42 percent to 50 percent of total revenues (and from cent of total revenues and averaging about 1.5 percent 6.1 percent to 9.9 percent of GDP) between 1966 of GDP over the 2018–2028 period. Taken together, the and 2017. Those fluctuations are attributable to remaining sources of revenue are projected to average changes in the economy and changes in law over that about 1.2 percent of GDP from 2018 through 2028. period but show no consistent trend over time (see Figure 3-2). Individual Income Taxes In 2017, receipts from individual income taxes totaled • Receipts from payroll taxes rose as a share of revenues nearly $1.6 trillion, or 8.3 percent of GDP. Under from the 1960s through the 1980s—largely because current law, individual income taxes will rise by 3 per- of an expansion of payroll taxes to finance the cent, to over $1.6 trillion in 2018, CBO estimates. That Medicare program (which was established in 1965) percentage increase would be smaller than the 5 percent and because of legislated increases in tax rates for increase expected for GDP, and individual income tax Social Security and in the amount of income to receipts would edge down to 8.2 percent of GDP. which those taxes applied. Those receipts accounted for about 37 percent of total revenues (and about The projected decline in individual income tax receipts 6.5 percent of GDP) by the late 1980s. Since 2001, as a share of the economy results from changes in tax law payroll tax receipts have fallen slightly relative to the that take effect beginning in 2018. CBO estimates that size of the economy, averaging 6.0 percent of GDP. the effect of the changes, including those stemming from That period includes two years, 2011 and 2012, when enactment of the 2017 tax law, will reduce individual receipts fell because certain payroll tax rates were cut. income tax receipts relative to GDP by 0.4 percent- age points in 2018. Those changes are partially offset • Revenues from corporate income taxes declined as by other factors. The most significant factor boosting a share of total revenues and GDP from the 1960s receipts in 2018 in CBO’s baseline is the expectation of to the mid-­ 980s, mainly because profits declined 1 strong growth in realizations of capital gains following relative to the size of the economy. Those revenues rising values in the stock market over the past year; that have fluctuated widely since then, the result both of growth is expected to boost receipts relative to GDP by changes in the economy and changes in law, with no 0.2 percentage points. consistent trend. If current laws remained unchanged, CBO projects that individual income tax receipts would rise by 66 The Budget and Economic Outlook: 2018 to 2028 April 2018 Figure 3-2 . Revenues, by Major Source Percentage of Gross Domestic Product 12 Actual Projected Individual Income Taxes 10 9.8 Individual income taxes account 8 for nearly all of the projected growth in receipts over the next 6 6.0 decade. Those receipts rise sharply following the expiration 4 Payroll Taxes Corporate Income of temporary tax provisions at the Taxes end of 2025 and also rise steadily 2 throughout the decade because 1.5 of other factors. Other Revenue Sourcesa 1.2 0 1966 1971 1976 1981 1986 1991 1996 2001 2006 2011 2016 2021 2026 Source: Congressional Budget Office. a. Consists of excise taxes, remittances from the Federal Reserve System, customs duties, estate and gift taxes, and miscellaneous fees and fines. 1.7 percentage points as a share of the economy over taxable distributions from retirement accounts, and other the next decade, reaching 9.8 percent of GDP by 2028, factors. which would be the highest percentage since 2000 and well above the 50-­ ear average of 8.0 percent (see y Expiration of Temporary Tax Provisions Table 3-1). The most significant factor pushing up taxes relative to income is the scheduled expiration, after tax year 2025, In CBO’s baseline, receipts climb in 2019 and beyond, of nearly all the individual income tax law changes made in part as a result of projected growth in taxable per- by the 2017 tax law. Those expirations would cause tax sonal income. (That measure of income includes wages, liabilities to rise in calendar year 2026, boosting receipts salaries, dividends, interest, rental income, and propri- in subsequent fiscal years. In addition, rules that allow etors’ income—each of which is defined by the Bureau accelerated depreciation deductions for certain business of Economic Analysis for use in its national income and investments are scheduled to phase out between 2022 product accounts.) According to CBO’s projections, and 2027. That expiration would not affect corporations taxable personal income would grow at a rate of 4.4 per- alone; it would also affect non-­ orporate businesses, c cent per year over the next decade, largely as a result of whose owners’ income is subject to the individual growth in wages and salaries. That income growth is income tax. Altogether, CBO projects that the expiration faster than the expected growth in nominal GDP and of those tax provisions would boost individual income would boost receipts relative to GDP by 0.3 percentage tax receipts relative to GDP by 0.7 percentage points points. over the next decade. (For further details about the new tax law, see Appendix B. For estimates of the effect on Moreover, receipts from individual income taxes are pro- the budget of extending those and other temporary tax jected to rise even faster than taxable personal income— provisions, see Chapter 4.) boosting receipts relative to GDP by an additional 1.4 percentage points from 2018 to 2028. More than Real Bracket Creep and Related Factors half of that projected increase results from the expiration The next most significant factor increasing taxes rela- of provisions included in the 2017 tax law that tempo- tive to income arises from the way certain parameters rarily lower receipts relative to taxable personal income. of the tax system are scheduled to change over time in The remainder results from real bracket creep, rising relation to growth in income (which reflects the effects of both real economic activity and inflation). The most CHAPTER 3: THE REVENUE OUTLOOK The Budget and Economic Outlook: 2018 to 2028 67 Table 3-1 . Revenues Projected in CBO’s Baseline Total Actual, 2019– 2019– 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2023 2028 In Billions of Dollars Individual Income Taxes 1,587 1,639 1,744 1,833 1,900 1,990 2,092 2,199 2,316 2,574 2,804 2,924 9,558 22,376 Payroll Taxes 1,162 1,178 1,231 1,284 1,337 1,395 1,456 1,519 1,583 1,646 1,712 1,780 6,704 14,944 Corporate Income Taxes 297 243 276 307 327 353 388 421 447 449 431 448 1,651 3,847 Other Excise taxes 84 102 88 106 109 113 117 119 121 123 126 129 532 1,149 Federal Reserve remittances 81 66 44 39 45 52 61 68 74 80 82 88 240 632 Customs duties 35 38 41 43 46 47 49 51 52 54 56 58 227 499 Estate and gift taxes 23 26 19 19 20 21 21 23 24 25 37 40 100 249 Miscellaneous fees and fines 48 47 46 45 44 42 44 46 47 49 51 52 221 466 Subtotal 270 278 238 253 263 275 291 306 318 332 352 368 1,320 2,995 Total 3,316 3,338 3,490 3,678 3,827 4,012 4,228 4,444 4,663 5,002 5,299 5,520 19,234 44,162 On-budget 2,466 2,477 2,590 2,736 2,845 2,990 3,164 3,338 3,513 3,807 4,058 4,230 14,327 33,273 Off-budget a 851 860 899 941 981 1,022 1,063 1,106 1,150 1,194 1,241 1,290 4,907 10,889 Memorandum: Gross Domestic Product 19,178 20,103 21,136 22,034 22,872 23,716 24,621 25,583 26,595 27,608 28,677 29,803 114,379 252,646 As a Percentage of Gross Domestic Product Individual Income Taxes 8.3 8.2 8.3 8.3 8.3 8.4 8.5 8.6 8.7 9.3 9.8 9.8 8.4 8.9 Payroll Taxes 6.1 5.9 5.8 5.8 5.8 5.9 5.9 5.9 6.0 6.0 6.0 6.0 5.9 5.9 Corporate Income Taxes 1.5 1.2 1.3 1.4 1.4 1.5 1.6 1.6 1.7 1.6 1.5 1.5 1.4 1.5 Other Excise taxes 0.4 0.5 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.4 0.4 0.4 0.5 0.5 Federal Reserve remittances 0.4 0.3 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.2 0.2 Customs duties 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Estate and gift taxes 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Miscellaneous fees and fines 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Subtotal 1.4 1.4 1.1 1.1 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 Total 17.3 16.6 16.5 16.7 16.7 16.9 17.2 17.4 17.5 18.1 18.5 18.5 16.8 17.5 On-budget 12.9 12.3 12.3 12.4 12.4 12.6 12.9 13.0 13.2 13.8 14.2 14.2 12.5 13.2 Off-budget a 4.4 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 Source: Congressional Budget Office. a. Receipts from Social Security payroll taxes. important component of that effect, real bracket creep, of GDP to rise in CBO’s baseline by 0.5 percentage occurs because the income tax brackets are indexed only points from 2018 to 2028. (Beginning in 2018, the to inflation. If income grows faster than inflation, as measure of inflation used to index many parameters of generally occurs when the economy is growing, more the tax system changed to an alternative measure that income is pushed into higher tax brackets. In addition grows more slowly. Consequently, for a given level of to the income thresholds for tax brackets, many other inflation in the economy, the effect of real bracket creep parameters of the tax system are indexed only to infla- and related factors will tend to be slightly greater than in tion, including the amounts of the standard deduction prior years.) and of certain tax credits, such as the earned income tax credit. Still other parameters of the tax system, including Retirement Income the amount of the child tax credit, are fixed in nominal As the population ages, taxable distributions from tax-­ dollars and are not adjusted for inflation. Together, those deferred retirement accounts will tend to grow more rap- factors cause projected revenues measured as a percentage idly than GDP. CBO expects the retirement of members 68 The Budget and Economic Outlook: 2018 to 2028 April 2018 of the baby-­ oom generation to cause a gradual increase b leading to temporarily higher or lower receipts. Over in distributions from tax-­ eferred retirement accounts, d time—taking into account current tax law and long-­ erm t including individual retirement accounts, 401(k) plans, trends in income components and demographics—the and traditional defined benefit pension plans. Under relationship of taxable income to the economy and the current law, CBO projects, those growing taxable ratio of taxes to income tend to return to more typical distributions would boost revenues relative to GDP by levels. 0.2 percentage points over the next decade. Payroll Taxes Other Factors Receipts from payroll taxes, which fund social insur- CBO anticipates that over the next decade, other factors ance programs, totaled about $1.2 trillion in 2017, or would have smaller, roughly offsetting effects on indi- 6.1 percent of GDP. Under current law, CBO projects vidual income tax revenues. Realizations of capital gains those receipts would fall to 5.8 percent of GDP by 2019 have been relatively high recently, and CBO anticipates before slowly rising to 6.0 percent of GDP by 2025. they will slowly return to levels consistent with their The decline from 2017 to 2019 is caused in part by historical average share of GDP (after accounting for the expectation that wages and salaries will continue to differences in applicable tax rates). That anticipated grow faster for higher-­ arning taxpayers than for other e decline in those realizations relative to the size of the taxpayers, which will push an increasing share of such economy—most of which occurs in CBO’s baseline over earnings above the maximum amount per taxpayer that the 2020–2028 period—would reduce individual income is subject to Social Security taxes (that amount, which taxes relative to GDP by about 0.2 percentage points. is indexed to growth in average earnings for all workers, is $128,400 in 2018). This trend is expected to slow after Other factors would boost receipts relative to GDP. In 2019 as the demand for labor weakens. (Historically, the CBO’s baseline projections, earnings from wages and share of wages and salaries accruing to higher earners salaries are expected to increase faster for higher-­ncome i has risen in tight labor markets.) The yearly growth in people than for others during the next decade—as has payroll taxes as a percentage of GDP from 2019 to 2028 been the case for the past several decades. That faster is consistent with growth in wages as a share of GDP growth in earnings for higher-­ncome people would push i over this period. a larger share of income into higher tax brackets and boost estimated individual income tax revenues relative Sources of Payroll Tax Receipts to GDP by about 0.1 percentage point; that increase The two largest sources of payroll taxes are those that would be partially offset by a projected decrease in pay- are dedicated to Social Security and Part A of Medicare. roll tax receipts, as explained in the section about payroll Much smaller amounts come from unemployment taxes.2 insurance taxes (most of which are imposed by states but produce amounts that are classified as federal revenues); Finally, recent receipts of individual income taxes have employers’ and employees’ contributions to the Railroad been slightly lower than can be explained by current Retirement system; and other contributions to federal economic data. CBO expects that weakness to gradually retirement programs, mainly those made by federal dissipate over the next several years, boosting receipts by employees (see Table 3-2). The premiums that Medicare about 0.1 percentage points as a share of GDP. Both the enrollees pay for Part B (the Medical Insurance program) relationship of taxable income to other economic indi- and Part D (prescription drug benefits) are voluntary cators and total taxes as a percentage of taxable income payments and thus are not counted as tax revenues; can fluctuate significantly from year to year, sometimes rather, they are considered offsets to spending and appear on the spending side of the budget as offsetting receipts. 2. CBO projects the shares of overall taxable income accruing to taxpayers at different points in the income distribution will Social Security and Medicare payroll taxes are calculated remain mostly unchanged over the next decade despite the rising as a percentage of a worker’s earnings. Almost all workers share of earnings going to higher-­ncome taxpayers. In addition i are in jobs covered by Social Security, and the associated to wages and salaries, taxable income includes income from tax is usually 12.4 percent of earnings, with the employer Social Security benefits and pensions, which are more broadly distributed, as well as income from investments and business and employee each paying half. It applies only up to a activity, which tend to accrue to higher-­ncome taxpayers. i certain amount of a worker’s annual earnings (the taxable CHAPTER 3: THE REVENUE OUTLOOK The Budget and Economic Outlook: 2018 to 2028 69 Table 3-2 . Payroll Tax Revenues Projected in CBO’s Baseline Billions of Dollars Total Actual, 2019– 2019– 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2023 2028 Social Security 851 860 899 941 981 1,022 1,063 1,106 1,150 1,194 1,241 1,290 4,907 10,889 Medicare 256 263 279 295 309 322 335 349 364 380 396 413 1,540 3,442 Unemployment Insurance 46 44 42 37 35 39 45 50 54 57 59 61 198 479 Railroad Retirement 5 6 6 6 6 6 6 6 7 7 7 7 30 64 Other Retirement a 4 5 5 5 6 6 7 7 8 8 9 10 29 71 Total 1,162 1,178 1,231 1,284 1,337 1,395 1,456 1,519 1,583 1,646 1,712 1,780 6,704 14,944 Source: Congressional Budget Office. a. Consists largely of federal employee contributions to the Federal Employees Retirement System and the Civil Service Retirement System. maximum). The Medicare tax applies to all earnings had been depleted because of high unemployment. (with no taxable maximum) and is levied at a rate of Unemployment insurance receipts have fallen in each 2.9 percent; the employer and employee each pay half of year since 2012, and CBO expects the pattern of decline that amount. An additional Medicare tax of 0.9 percent to continue in the near future, although many states is levied on the amount of an individual’s earnings over will need to increase revenues in the future in order to $200,000 (or $250,000 for married couples filing a joint maintain historic ratios of trust fund balances relative to income tax return), bringing the total Medicare tax on wages and salaries. such earnings to 3.8 percent. Corporate Income Taxes Projected Receipts In 2017, receipts from corporate income taxes totaled Wages and salaries, the main tax bases for payroll taxes, $297 billion, or 1.5 percent of GDP. CBO expects are projected to rise as a share of GDP over the next corporate tax receipts to fall by $54 billion in 2018, to decade. As a result, after an initial decline, payroll 1.2 percent of GDP, largely because of the enactment taxes in CBO’s baseline rise as a share of GDP in every of the 2017 tax act. That law made significant changes year from 2019 to 2028. The decline from 2017 to to the corporate income tax system beginning in 2018, 2019 occurs in part because the share of earnings above including reducing the corporate tax rate for most busi- the taxable maximum amount for Social Security taxes is nesses from 35 percent to 21 percent. (For more details projected to rise from 18 percent in 2017 to 20 percent on the provisions of that legislation, see Appendix B.) in 2019. After 2019, however, that share is estimated to After 2018, those receipts begin to rise in CBO’s baseline remain at 20 percent through 2028.3 projections, reaching 1.7 percent of GDP in 2025, and then decline to 1.5 percent in 2027. That pattern reflects In addition, receipts from unemployment insurance several offsetting factors, including the changing effects taxes are projected to decline slightly relative to wages of the 2017 tax act over time and an expected decline in and salaries and GDP between 2017 and 2021. Those profits relative to GDP. receipts grew rapidly from 2010 through 2012, as states raised their tax rates and expanded their tax bases to Receipts in 2018 replenish unemployment insurance trust funds that CBO expects corporations’ income tax payments, net of refunds, to decline by $54 billion in 2018, to 3. Because of the progressive rate structure of the income tax, the $243 billion. That decline would occur despite pro- increase in the share of earnings above the Social Security taxable jected increases in domestic economic profits and GDP. maximum is projected to produce an increase in individual Because revenues from corporate income taxes are income tax receipts that will more than offset the decrease in payroll tax receipts. 70 The Budget and Economic Outlook: 2018 to 2028 April 2018 projected to fall even as GDP rises, those revenues are share of GDP by about 0.4 percentage points from 2019 projected to decline relative to GDP. to 2028. The projected decline in corporate income tax receipts Phaseout of Full-­ xpensing Provisions. For more than E relative to domestic economic profits results from a decade, temporary but repeatedly extended provisions changes made by the 2017 tax act. The largest part of the have allowed businesses to immediately deduct from projected revenue decline stems from the corporate tax their taxable income a higher fraction of their expenses rate reduction itself. In addition, the prospective reduc- for investment in equipment than would have been tion in the corporate tax rate in January 2018 provided allowed after those provisions expired. For tax years 2013 an opportunity for some firms to accelerate expenses, through 2017, companies were allowed to immediately such as employees’ compensation, into the 2017 tax year deduct 50 percent of such investments. The rules enacted in order to claim deductions at the 35 percent rate in in the 2017 tax act allow businesses to fully expense effect for that year, thus lowering their tax liabilities in equipment purchased and put into service beginning fiscal year 2018. Furthermore, the 2017 tax act allows in the fourth quarter of calendar year 2017 through the businesses to fully expense (immediately deduct from end of 2022, after which the share of investments that their taxable income) equipment they purchased and put business may immediately expense falls to 80 percent into service beginning in the fourth quarter of calendar in 2023, 60 percent in 2024, 40 percent in 2025, and year 2017. The ability to deduct the full value of such 20 percent in 2026. At that point, those “bonus depre- investments will also lower taxable income in fiscal year ciation” provisions are scheduled to expire. In CBO’s 2018. The lower taxes resulting from those provisions are baseline, the phaseout causes the associated deductions partly offset by new revenues stemming from a onetime to decline relative to the size of the economy, boosting tax on previously untaxed foreign profits, expected to be taxable income and raising corporate tax receipts as a paid from 2018 through 2026. share of GDP by 0.2 percentage points. Receipts After 2018 Decline in Domestic Economic Profits Relative to In CBO’s baseline, receipts from corporate income taxes GDP. CBO projects that domestic economic profits will begin to increase in 2019, rising as a share of GDP by decline relative to GDP over the next decade. They are 0.3 percentage points by 2028. Two factors cause receipts expected to decline in part because of rising labor costs to rise as a share of GDP relative to 2018: Corporate tax and rising interest payments on businesses’ debt over the receipts, which have been lower than can be explained by next several years. By itself, the anticipated decline in currently available data on business activity, are projected profits causes projected corporate income tax revenues in to recover; and the provisions allowing businesses to fully CBO’s baseline to fall relative to GDP by about 0.2 per- expense certain investments are scheduled to phase out centage points over the next decade. under current law between 2022 and 2027. In CBO’s projections, those increases are partially offset over the Other Provisions of the 2017 Tax Act. In addition to next decade by other factors: an expected decline in provisions allowing for full expensing of investment, the domestic economic profits relative to GDP, and the net 2017 tax act included a number of other provisions that effects of other provisions of the 2017 tax act that are will affect corporate taxes over time. Following the initial projected to further reduce receipts after 2018. decline in receipts the law causes in 2018, those provi- sions are projected to further reduce receipts relative to Temporary Weakness in 2017 and 2018 Collections. GDP by an additional 0.1 percentage points, on net. Corporate tax collections in 2017 and early 2018 were weaker than can be explained by currently available data Two provisions of the new tax law are projected to on business activity. CBO anticipates that the factors reduce receipts from corporate income taxes between that are responsible (which will not become apparent 2018 and 2028. First, businesses are required to pay a until information from tax returns becomes available new onetime tax on previously untaxed foreign profits. over the next two years) will gradually dissipate over the Corporations must pay the tax regardless of whether they next several years. Recovery from this temporary decline actually repatriate the earnings to the United States—a in receipts would increase projected tax revenues as a requirement often called deemed repatriation. Prior to the 2017 tax act, those profits were not subject to U.S. CHAPTER 3: THE REVENUE OUTLOOK The Budget and Economic Outlook: 2018 to 2028 71 taxation until they were brought back to the United Table 3-3). Under current law, CBO projects that those States. Taxes on those earnings, which are based on receipts would decline to 1.1 percent of GDP by 2019 the value of those profits at the end of a corporation’s and gradually rise to over 1.2 percent of GDP by 2028. 2017 tax year and unrelated to future business activity, must now be paid in installments over the next eight Among the smaller sources of revenues, the changes from years. Because the required installments are not equal 2018 to 2028 result mostly from changes in the amounts in size, the effect of those receipts on CBO’s baseline received in remittances from the Federal Reserve and varies over the period. Those payments are projected to from estate and gift taxes. boost receipts to varying degrees during the years 2018 through 2026, but not in subsequent years. Excise Taxes Unlike taxes on income, excise taxes are levied on the Second, the full effect of the 2017 tax act’s reduction in production or purchase of a particular type of good or the corporate tax rate phases in over two fiscal years. That service. Excise taxes are projected to rise from $102 bil- provision was effective in January 2018, so it generally lion in 2018 to $129 billion in 2028. From 2018 to covers only three-­ uarters of fiscal year 2018, which q 2019, projected receipts fall significantly because the began in October 2017. Furthermore, the tax years for annual fee on health insurance providers is suspended in some corporations do not align with the calendar year. 2019. After the decline in 2019, excise taxes are pro- Those corporations will face a blended tax rate, prorated jected to increase each year but still to slightly decrease between 35 percent and 21 percent, for one year as they as a share of GDP, from 0.5 percent in 2018 to 0.4 per- transition to the new lower tax rate. Both of those factors cent in 2028, primarily because prices are projected limit the effect of the rate cut on revenues in fiscal year to increase at a faster rate than the excise tax base. In 2018 compared with subsequent years and contribute to addition, taxes on gasoline and tobacco would continue a further decline in corporate tax revenues as a share of to decline over the 10-­ ear period. In CBO’s baseline y GDP between 2018 and subsequent years. projections, over 90 percent of excise tax receipts come from taxes related to highways, tobacco and alcohol, Partly offsetting those factors are provisions that seek aviation, and health care. to expand the domestic corporate tax base and limit allowable deductions, thereby boosting receipts over the Highway Taxes. About 40 percent of excise tax receipts next decade. For example, beginning in tax year 2018, currently come from highway taxes—primarily taxes companies will generally no longer be able to generate a on the consumption of gasoline, diesel fuel, and blends current year refund by deducting their net operating loss of those fuels with ethanol, as well as on the retail sale from prior tax liabilities and instead will only be permit- of trucks. Annual receipts from highway taxes, which ted to deduct those losses from income in future years. are largely dedicated to the Highway Trust Fund, are In addition, the value of those “carryforwards” is reduced projected to decrease slightly over the 10-­ ear period, y under the 2017 tax act, lowering the amount corpo- averaging an annual decline of 0.1 percent but remaining rations can deduct from taxable income. As a result of close to $40 billion a year. those changes, CBO projects revenues to increase gradu- ally over time. Additionally, beginning in 2022, corpora- CBO’s projection of a slight decline in highway revenues tions will be required to capitalize and amortize certain is the net effect of falling receipts from taxes on gasoline expenditures for research and experimentation as they are and rising receipts from taxes on diesel fuel and trucks. incurred over a five-­ ear period, rather than immediately y Gasoline consumption is expected to decline because deducting them. In CBO’s baseline, that change further improvements in vehicles’ fuel economy (spurred by boosts corporate receipts in 2022 and beyond. increases in the government’s fuel-economy standards) is expected to more than offset the increase in the number Smaller Sources of Revenues of miles people drive. Miles driven largely reflects pro- The remaining sources of federal revenues are excise jected population growth. Increased fuel economy will taxes, remittances from the Federal Reserve to the likewise reduce the consumption of diesel fuel per mile Treasury, customs duties, estate and gift taxes, and mis- driven over the 10-­ ear period. However, from 2018 y cellaneous fees and fines. Revenues from those sources through 2021, the decrease in diesel consumption from totaled $270 billion in 2017, or 1.4 percent of GDP (see fuel economy is projected to be offset by the increase in 72 The Budget and Economic Outlook: 2018 to 2028 April 2018 Table 3-3 . Smaller Sources of Revenues Projected in CBO’s Baseline Billions of Dollars Total Actual, 2019– 2019– 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2023 2028 Excise Taxes Highway 35 39 40 41 40 40 40 40 40 39 39 39 202 399 Health Care 4 18 3 21 22 25 29 31 32 34 36 39 99 272 Aviation 15 16 17 17 18 19 19 20 20 21 22 22 90 196 Tobacco 14 14 13 13 13 12 12 12 12 11 11 11 64 121 Alcohol 10 9 9 10 11 11 11 12 12 12 12 12 52 112 Other 5 6 5 5 5 5 5 5 5 5 5 5 25 50 Subtotal 84 102 88 106 109 113 117 119 121 123 126 129 532 1,149 Federal Reserve Remittances 81 66 44 39 45 52 61 68 74 80 82 88 240 632 Customs Duties 35 38 41 43 46 47 49 51 52 54 56 58 227 499 Estate and Gift Taxes 23 26 19 19 20 21 21 23 24 25 37 40 100 249 Miscellaneous Fees and Fines Universal Service Fund fees 10 10 11 11 11 12 12 12 12 12 12 12 57 116 Other fees and fines 38 37 36 34 33 30 32 34 35 37 39 40 165 350 Subtotal 48 47 46 45 44 42 44 46 47 49 51 52 221 466 Total 270 278 238 253 263 275 291 306 318 332 352 368 1,320 2,995 Source: Congressional Budget Office. This table shows all projected sources of revenues other than individual and corporate income taxes and social insurance taxes. total miles driven by diesel-­ owered trucks as the econ- p then divided among insurers according to their share of omy expands. After 2021, consumption is expected to total premiums. In 2018, revenues are projected to total decline as fuel economy continues to improve. $14 billion. Recent legislation suspended the tax for 2019, but receipts are projected to rise steadily thereafter, Under current law, most of the federal excise taxes used reaching $24 billion by 2028. to fund highway programs are scheduled to expire on September 30, 2022. In general, CBO’s baseline incor- Other health care taxes that were also instituted by the porates the assumption that expiring tax provisions will Affordable Care Act include an annual fee imposed on follow the schedules set forth in current law. However, manufacturers and importers of brand-­ ame drugs, a n the Balanced Budget and Emergency Deficit Control tax on manufacturers and importers of certain medical Act of 1985 (P.L. 99–177) requires that CBO’s baseline devices, and a tax on certain health insurance plans with incorporate the assumption that expiring excise taxes high premiums. The tax on manufacturers of brand-­ dedicated to trust funds (including most of the highway name drugs is projected to raise $3 billion each year from taxes) will be extended. 2019 to 2028. A moratorium on the medical devices tax was extended in recent legislation and so will not gen- Health Care Taxes. CBO projects receipts from health erate revenue until calendar year 2020. In 2028, CBO care taxes to grow from $18 billion in 2018 to $39 bil- estimates that it will raise about $4 billion in revenues. lion in 2028. The largest of those taxes is the excise tax Recent legislation also delayed the implementation of the imposed on many health insurers under the Affordable excise tax on high-­ ost employment-based health plans c Care Act. The law specifies the total amount of the tax until 2022. Revenues from that tax are projected to total to be assessed in 2018 and the formula used to com- $7 billion in 2028 under current law. pute that amount in subsequent years. That total is CHAPTER 3: THE REVENUE OUTLOOK The Budget and Economic Outlook: 2018 to 2028 73 Tobacco and Alcohol Taxes. CBO projects that taxes CBO projects the Federal Reserve’s remittances in 2018 on tobacco products will generate $14 billion in reve- to be $66 billion (or 0.3 percent of GDP). That amount nues in 2018. That amount is projected to decrease by was boosted by $2 billion, CBO estimates, by the Federal roughly 2 percent a year over the next decade, as tobacco Reserve’s transfer of its surplus account to the Treasury as consumption continues to decline. Receipts from taxes required by the Bipartisan Budget Act of 2018 (P.L. 115– on alcoholic beverages are expected to total $9 billion in 123). Subsequently, CBO projects that remittances 2018. Projected revenues over the 2018–2020 period are will decrease over the 2018–2020 period because of the lower because of the effects of the 2017 tax act, which Federal Reserve’s rising interest expenses and a reduction lowered taxes on most types of alcohol. Beginning in in the amount of assets that it holds. CBO also projects 2022, receipts would grow at about 2 percent per year to an increase in interest rates on Treasury securities over reach $12 billion by 2028. the projection period, which will increase earnings for the Federal Reserve—but only gradually—as it purchases Aviation Taxes. In CBO’s baseline, receipts from taxes new securities that earn higher yields. (See Chapter 1 for on airline tickets, aviation fuels, and various aviation-­ a discussion of CBO’s forecasts of monetary policy and related transactions increase from $16 billion in 2018 to interest rates in the coming decade.) Overall, remit- $22 billion in 2028, yielding an average annual rate of tances in CBO’s baseline range between 0.2 percent and growth of about 3 percent. That growth is close to the 0.3 percent of GDP over the 2019–2028 period, which projected increase of GDP over the period. The larg- is close to the Federal Reserve’s average remittance of est component of aviation excise taxes (a tax on airline 0.2 percent of GDP from 2000 through 2009, before the tickets) is levied not on the number of units transacted central bank dramatically boosted its asset holdings in (as gasoline taxes are, for example) but as a percentage response to the 2008 financial crisis. of the dollar value of transactions. As a result, receipts increase as both real (inflation-adjusted) economic activ- Customs Duties, Estate and Gift Taxes, and ity and prices increase. Under current law, aviation taxes Miscellaneous Fees and Fines are scheduled to expire in 2019. In the same manner as Receipts from all other sources are projected to remain highway taxes described above, CBO’s baseline incor- relatively stable over the next decade, together remaining porates the assumption that these expiring taxes will be near 0.5 percent of GDP between 2018 and 2028. extended because they are dedicated to a trust fund. Customs Duties. The duties, which are assessed on cer- Other Excise Taxes. Other excise taxes are projected to tain imports, have totaled 0.2 percent of GDP in recent generate a total of about $6 billion in revenues in 2018 years, amounting to $35 billion in 2017. CBO projects and $55 billion in revenues from 2018 to 2028. They that, under current law, those receipts would continue at include two new excise taxes established by the 2017 tax that level relative to GDP throughout the next decade.4 act: an excise tax on the investment income of private colleges and universities and a tax on executive compen- Estate and Gift Taxes. In 2017, revenue from the estate sation of tax-­ xempt organizations. The category also e and gift taxes totaled $23 billion, or just above 0.1 per- consists of other taxes dedicated to trust funds, including cent of GDP. As a result of a provision in the 2017 tax the Federal Aid in Wildlife Restoration trust fund (taxes act that temporarily doubles the estate and gift tax on firearms and bows and arrows), the Oil Spill Liability exemption amount, taxes from that source are projected Trust Fund, and the Patient-­ entered Outcomes C to drop in 2019 to less than 0.1 percent of GDP before Research Trust Fund. rising again to just above 0.1 percent in 2027 and 2028. Remittances From the Federal Reserve System Miscellaneous Fees and Fines. Receipts from other fees The income produced by the various activities of the and fines totaled $48 billion (0.2 percent of GDP) in Federal Reserve System, minus the cost of generating 2017. Under current law, those fees and fines would that income and the cost of the system’s operations, is remitted to the Treasury and counted as revenue. The largest component of such income is what the Federal 4. CBO’s baseline for customs duties was completed before the Reserve earns as interest on its holdings of securities. implementation of new tariffs on steel and aluminum and does not incorporate any effects of those policies. 74 The Budget and Economic Outlook: 2018 to 2028 April 2018 continue to average 0.2 percent of GDP from 2018 Tax expenditures are more similar to the largest benefit through 2028, CBO projects. programs than they are to discretionary spending pro- grams: Tax expenditures are not subject to annual appro- Tax Expenditures priations, and any person or entity that meets the legal Many exclusions, deductions, preferential rates, and requirements can receive the benefits. Because of their credits in the individual income tax, payroll tax, and budgetary treatment, however, tax expenditures are much corporate income tax systems cause revenues to be much less transparent than spending on benefit programs. lower than they would otherwise be for any underlying structure of tax rates. Many of those provisions are called Magnitude of Tax Expenditures tax expenditures because they are similar to government Tax expenditures have a major impact on the federal spending programs, in that they supply financial assis- budget. CBO estimates that in fiscal year 2017, before tance for particular activities or to certain entities or the 2017 tax act and subsequent legislation took effect, groups of people. the more than 200 tax expenditures in the individ- ual and corporate income tax systems totaled almost Like conventional federal spending, tax expenditures $1.7 trillion—or 8.9 percent of GDP—if their effects contribute to the federal budget deficit. They also on payroll taxes as well as on income taxes are included.7 influence people’s choices about working, saving, and That amount equaled more than half of all federal reve- investing, and they affect the distribution of income. The nues received in 2017 and exceeded spending on Social Congressional Budget Act of 1974 (P.L. 93–344) defines Security, defense, or Medicare (see Figure 3-3). tax expenditures as “those revenue losses attributable to provisions of the Federal tax laws which allow a special Tax expenditures are likely to be smaller beginning in exclusion, exemption, or deduction from gross income 2018 as a result of the 2017 tax act—but estimates of or which provide a special credit, a preferential rate their magnitude are not yet available. CBO projects of tax, or a deferral of tax liability.”5 That law requires those amounts on the basis of estimates prepared by the federal budget to list tax expenditures, and every JCT, and JCT’s estimates incorporating the effects of year JCT and the Treasury’s Office of Tax Analysis each the 2017 tax act and subsequent legislation have not yet publish estimates of individual and corporate income tax been released. expenditures.6 A simple total of the estimates for specific tax expendi- tures does not account for the interactions among them if they are considered together. For instance, the total 5. Sec. 3(3) of the Congressional Budget and Impoundment tax expenditure for all itemized deductions would be Control Act of 1974 (codified at 2 U.S.C. §622(3) (2006)). smaller than the sum of the separate tax expenditures 6. For this analysis, CBO follows JCT’s definition of tax for each deduction: That is because all taxpayers would expenditures as deviations from a “normal” income tax structure. claim the standard deduction if there were no itemized For the individual income tax, that structure incorporates deductions—but if only one or a few deductions were existing regular tax rates, the standard deduction, personal removed, many taxpayers would still choose to itemize. exemptions, and deductions of business expenses. For the corporate income tax, that structure includes the top statutory However, the progressive structure of the tax brackets tax rate, defines income on an accrual basis, and allows for cost ensures that the opposite would be the case with income recovery according to a specified depreciation system. For more information, see Joint Committee on Taxation, Estimates of 7. Most estimates of tax expenditures include only their effects Federal Tax Expenditures for Fiscal Years 2016–2020, JCX-­3–17 on individual and corporate income taxes. However, tax (January 2017), https://go.usa.gov/xQ3gn. Unlike JCT, CBO expenditures can also reduce the amount of income subject to includes estimates of the largest payroll tax expenditures. As payroll taxes. JCT has previously estimated the effect on payroll defined by CBO, a normal payroll tax structure includes the taxes of the provision that excludes employers’ contributions existing payroll tax rates as applied to a broad definition of for health insurance premiums from their workers’ taxable compensation—which consists of cash wages and fringe benefits. income. See Joint Committee on Taxation, Background Materials The Treasury’s definition of tax expenditures is broadly similar for Senate Committee on Finance Roundtable on Health Care to JCT’s. See Office of Management and Budget, Budget of Financing, JCX-­ 7–09 (May 2009), https://go.usa.gov/xQaa9. 2 the U.S. Government, Fiscal Year 2019: Analytical Perspectives Tax expenditures that reduce the tax base for payroll taxes will (February 2018), pp. 153–194, https://go.usa.gov/xQ3gV (PDF, eventually decrease spending for Social Security by reducing the 4.2 MB). earnings base on which Social Security benefits are calculated. CHAPTER 3: THE REVENUE OUTLOOK The Budget and Economic Outlook: 2018 to 2028 75 Figure 3-3 . Revenues, Tax Expenditures, and Selected Components of Spending in 2017 Tax expenditures, estimated to have been $1.7 trillion in 2017, cause revenues to be lower than they would be otherwise and, like spending programs, contribute to the federal deficit. Percentage of Gross Domestic Product 10 Corporate Income Tax Expenditures 8 Payroll Tax Expenditures 6 Individual Income Tax Expenditures 4 2 0 Individual Income Payroll Tax All Other Revenues All Tax Defense Medicare Spending Social Security Tax Revenues Revenues Expendituresa Spending Net of Offsetting Spending Receipts Source: Congressional Budget Office, using estimates by the staff of the Joint Committee on Taxation. Estimates incorporating the effects of the 2017 tax act have not yet been released. Those changes in law will generally reduce the magnitude of tax expenditures beginning in 2018. a. This total is the sum of the estimates for all of the separate tax expenditures and does not account for any interactions among them. However, CBO estimates that in 2017, the total of all tax expenditures roughly equals the sum of each considered separately. Furthermore, because estimates of tax expenditures are based on people’s behavior with the tax expenditures in place, the estimates do not reflect the amount of revenue that would be raised if those provisions of the tax code were eliminated and taxpayers adjusted their activities in response to the changes. The outlay portions of refundable tax credits are included in tax expenditures. Those payments would be reported in the budget as “other mandatory spending,” a category not shown in this figure. exclusions; that is, the tax expenditure for all exclusions The Largest Tax Expenditures in 2017 considered together would be greater than the sum of CBO estimates that the 10 largest tax expenditures the separate tax expenditures for each exclusion. In 2017, accounted for almost three-­ uarters of the total bud- q those and other factors were approximately offsetting, so getary effects of all tax expenditures in fiscal year 2017, the total amount of tax expenditures roughly equaled the totaling 6.1 percent of GDP.8 Those 10 tax expenditures sum of all of the individual tax expenditures. fell into four categories: exclusions from taxable income, itemized deductions, preferential tax rates, and tax Nonetheless, the total amount of tax expenditures does credits. not represent the increase in revenues that would occur if all tax expenditures were eliminated because repealing a Exclusions From Taxable Income. Exclusions of certain tax provision would change incentives and lead taxpayers types of income from taxation account for the greatest to modify their behavior in ways that would diminish share of total tax expenditures. The largest items in that the impact of the repeal on revenues. For example, if the category are employers’ contributions to their employ- preferential tax rates on realizations of capital gains were ees’ health care, health insurance premiums, and pre- eliminated, taxpayers would reduce the amount of capital miums for long-­ erm-­ are insurance; contributions to t c gains they realized; as a result, the amount of additional revenues that would be produced by eliminating the 8. CBO combined the components of certain tax expenditures that preferential rates would be smaller than the estimated JCT reported separately, such as tax expenditures for different size of the tax expenditure. types of charitable contributions. 76 The Budget and Economic Outlook: 2018 to 2028 April 2018 and earnings of pension funds (minus pension benefits Preferential Tax Rates and Tax Credits. Under the indi- that are included in taxable income); and profits earned vidual income tax, preferential tax rates apply to some abroad, which certain corporations may exclude from forms of income, including dividends and long-­ ermt 11 their taxable income until those profits are returned to capital gains. Tax credits also reduce eligible taxpayers’ the United States.9 tax liability. Nonrefundable tax credits cannot reduce a taxpayer’s income tax liability to less than zero, whereas • The exclusion of employers’ health insurance refundable tax credits may result in direct payments to contributions is the single largest tax expenditure in taxpayers who do not owe any income taxes. the tax code; including effects on payroll taxes, that exclusion is estimated to have equaled 1.5 percent of • Tax expenditures for the preferential tax rates on GDP in 2017. dividends and long-­ erm capital gains are estimated t to have totaled 0.7 percent of GDP in 2017.12 • The exclusion of pension plan contributions and earnings has the next largest impact, resulting in • The Affordable Care Act provides a refundable tax expenditures that are estimated to have totaled tax credit, called the premium tax credit, to help 1.2 percent of GDP last year, including effects on low-­and moderate-­ncome people purchase health i payroll taxes.10 insurance through exchanges. Tax expenditures for those credits are estimated to have totaled 0.3 percent • Tax expenditures for the deferral of corporate of GDP in 2017. profits earned abroad are estimated to have equaled 0.6 percent of GDP in 2017. • The tax expenditure for the earned income tax credit is estimated to have been 0.4 percent of GDP last year. Itemized Deductions. Itemized deductions for certain types of payments allow taxpayers to further reduce their • The tax expenditure for the child tax credit was also taxable income. estimated to have been 0.3 percent of GDP in 2017. • Tax expenditures for deductions for state and local Effect of the 2017 Tax Act on Tax Expenditures taxes (on nonbusiness income, sales, real estate, and The 2017 tax act made many changes that affect the personal property) are estimated to have equaled magnitude of tax expenditures, though in many cases 0.5 percent of GDP in 2017. those changes are temporary. Some of those changes modify the rules for eligibility or the amount of tax • Tax expenditures for interest paid on mortgages for expenditures. But the 2017 tax act also contained owner-­ ccupied residences are estimated to have been o changes to other provisions in the tax code with indirect 0.3 percent of GDP last year. consequences for the total amount of tax expenditures. Neither JCT nor the Treasury Department has estimated • Tax expenditures for charitable contributions are also tax expenditures under the new law, so a comprehensive estimated to have equaled 0.3 percent of GDP in 2017. 11. Not all analysts agree that lower tax rates on investment income constitute tax expenditures. Although such tax preferences are tax expenditures relative to a pure income tax, which is the benchmark used by JCT and the Treasury Department in 9. JCT previously also considered the exclusion for Medicare calculating tax expenditures, they are not tax expenditures relative benefits (net of premiums paid) to be a tax expenditure but to a pure consumption tax because investment income generally no longer does so. For a more detailed explanation, see Joint is excluded from taxation under a consumption tax. Committee on Taxation, Estimates of Federal Tax Expenditures for 12. Taxpayers with income over certain thresholds—$200,000 Fiscal Years 2015–2019, JCX-­ 41R-­ 5 (December 2015), p. 20, 1 1 for single filers and $250,000 for married couples filing joint https://go.usa.gov/xQ3gT. returns—face a surtax equal to 3.8 percent of their investment 10. That total includes amounts from defined benefit and defined income (including capital gains and dividend income, as well as contribution plans offered by employers; it does not include interest income and some passive business income). That surtax amounts from self-­ irected individual retirement arrangements d reduces the preferential treatment of dividends and capital gains. or from Keogh plans that cover partners and sole proprietors, JCT treats the surtax as a negative tax expenditure—that is, as a although contributions to and earnings accrued in those plans are deviation from the tax system that increases rather than decreases also excluded from taxable income until withdrawal. taxes—and it is not included in the figures presented here. CHAPTER 3: THE REVENUE OUTLOOK The Budget and Economic Outlook: 2018 to 2028 77 evaluation of the size of tax expenditures is not possible more generous capital recovery, which will increase the at this time. CBO expects that, on balance, the changes tax expenditures for depreciation of property. made by the tax act will reduce tax expenditures. But even with those reductions, tax expenditures will con- Economic Effects of Tax Expenditures tinue to have a substantial impact on the federal budget. Tax expenditures are generally designed to further soci- etal goals. For example, the tax expenditures for health Ways in Which Tax Expenditures Will Be Reduced. insurance costs, pension contributions, and mortgage The 2017 tax act directly limited some of the largest interest payments may help promote a healthier popu- tax expenditures for calendar years 2018 through 2025, lation, adequate financial resources for retirement and broadening the tax base. For example, a new limit was greater national saving, and stable communities of home- placed on the itemized deduction for state and local taxes owners. However, tax expenditures have a broad range of (including income, sales, and property taxes), and the effects that do not always further societal goals. limit on the amount of debt for owner-­ ccupied hous- o ing for which the mortgage interest is deductible was First, tax expenditures may lead to an inefficient alloca- lowered. tion of economic resources. They do so by subsidizing activity—such as buying a home—that might have taken Some changes made by the 2017 act will indirectly place without the tax incentives and by encouraging reduce tax expenditures. The act almost doubled the more consumption of the goods and services that receive standard deduction, which will significantly curtail tax preferential treatment. For example, the tax expendi- expenditures for itemized deductions. That change will tures mentioned above may prompt people to be less reduce the value of claiming itemized deductions relative cost-­ onscious in their use of health care services than c to claiming the standard deduction for all taxpayers. In they would be in the absence of the tax expenditure many cases, the reduction will cause taxpayers to switch for health insurance costs; to reallocate existing savings from itemizing their deductions to claiming the stan- from accounts that are not tax-­ referred to retirement p dard deduction. CBO expects that the larger standard accounts, rather than add to their savings; and to deduction, in conjunction with the limits on itemized purchase more expensive homes, investing too much in deductions, will reduce the number of taxpayers who housing and too little elsewhere relative to what they itemize deductions by more than half. would do if all investments were treated equally. Furthermore, by lowering both individual and corporate Second, by providing benefits related to specific activ- statutory tax rates, the act will reduce the size of most tax ities, entities, or groups of people, tax expenditures expenditures. That effect occurs because tax expenditures increase the size and scope of federal involvement in are measured as the revenue loss from special exclusions the economy. Indeed, adding tax expenditures to con- and deductions and preferential rates, and the revenue ventional federal outlays makes the federal government loss generally falls as the statutory rates fall. (Tax expen- appear notably larger relative to GDP. ditures for tax credits, however, are largely unchanged by rate structure.) Third, tax expenditures reduce the amount of revenue that is collected for any given set of statutory tax rates— Ways in Which Tax Expenditures Will Be Increased. and thereby require higher rates to collect a chosen The 2017 tax act expanded other tax expenditures. For amount of revenue. All else being equal, those higher example, for the years 2018 through 2025, the nonre- tax rates lessen people’s incentives to work and save, and fundable child credit is doubled, the refundable portion therefore decrease output and income. of the child tax credit is increased, and a smaller credit is broadened to cover dependents who were not previously At the same time, some tax expenditures more directly eligible for the credit.13 And the act also allows for a affect output and income. For example, the preferential rate on capital gains and dividends raises the after-­ ax t return on some forms of saving, which tends to increase 13. For some taxpayers, the tax reduction provided by those larger saving and boost future output. As another example, tax credits will be more than offset by the temporary repeal of personal exemptions, which will raise taxable income. However, the increase in take-­ ome pay arising from the earned h personal exemptions, along with the standard deduction and tax income tax credit appears to encourage work effort by rates on ordinary income, are not considered tax expenditures. some people. 78 The Budget and Economic Outlook: 2018 to 2028 April 2018 Fourth, tax expenditures have mixed effects on the soci- distribution of possible outcomes. Hence, actual rev- etal goal of limiting the complexity of the tax code. On enues could turn out to be higher or lower than CBO the one hand, most tax expenditures, such as itemized projects. deductions and tax credits, require that taxpayers keep additional records and make additional calculations, In analyzing its previous baseline projections of revenues increasing the complexity of the tax code. On the other since 1982, CBO found that projected revenues for the hand, some exclusions from taxable income simplify the second year (which is often called the budget year and tax code by eliminating recordkeeping requirements and usually began about six months after the projections were the need for certain calculations. For example, in the released) and the sixth year were too high, on average, absence of the exclusion for capital gains on assets trans- mainly because of the difficulty of predicting when ferred at death, taxpayers would need to calculate the economic downturns would occur. The overall accuracy appreciation in the value of their assets since the original of CBO’s revenue projections has been similar to that purchase—a calculation that would require records of of the projections of other government agencies. Since the purchase of assets acquired by deceased benefactors, 1982, the mean absolute error—that is, the average of all perhaps many decades earlier. errors without regard for whether they were positive or negative—has been 5.0 percent for CBO’s budget-­ ear y Fifth, tax expenditures affect the distribution of the tax projections and 10.0 percent for the sixth-­ ear projec- y burden in ways that may not always be recognized, both tions.14 Percentage errors of those amounts would equal among people at different income levels and among about $175 billion in 2019 and $425 billion in 2023. people who have similar income but differ in other ways. Uncertainty Surrounding the 14. Those errors include CBO’s projections that were prepared Revenue Outlook from 1982 through the most recent fiscal years for which actual Revenue projections are inherently uncertain, and even receipts are available for each projection horizon: 2016 for the if no changes were made to current law, actual outcomes budget-­ ear projections and 2012 for the sixth-­ ear projections. y y would undoubtedly differ in some ways from CBO’s For a more detailed analysis, see Congressional Budget Office, CBO’s Revenue Forecasting Record (November 2015), www.cbo. projections. The agency attempts to construct its 11‑year gov/publication/50831. That analysis encompassed actual results revenue projections so that they fall in the middle of the through fiscal year 2013. CHAPTER 4 Chapter 4 The Outlook for Deficits and Debt Overview Growing Debt Federal budget deficits are set to increase rapidly this year The large deficits over the next 10 years would cause debt and over the next four years, the Congressional Budget held by the public to rise steadily. Relative to the nation’s Office projects, and then to remain largely stable rela- output, debt held by the public is projected to increase tive to the size of the economy—but at a very high level from 76.5 percent of GDP in 2017 to 96.2 percent by historical standards—over the rest of the projection at the end of 2028 (see Table 4-2 on page 82). At that period (see Figure 4-1). Those deficits would result in point, federal debt would be higher as a percentage of rising federal debt. Moreover, CBO’s baseline projec- GDP than at any point since just after World War II— tions reflect a number of significant changes to tax and and heading still higher. spending policies that are scheduled to take effect under current law. If those changes did not occur, deficits and Outcomes If Certain Changes Scheduled in Law debt would be substantially larger. Did Not Occur In CBO’s baseline projections, deficits in the latter Rising Deficits half of the decade, though quite large, are not trending As required by statute, when constructing its baseline upward relative to the size of the economy. That pattern projections, CBO incorporates the assumption that occurs in large part because CBO’s projections reflect the current laws governing taxes and spending will generally assumption that substantial tax increases and spending remain unchanged in future years.1 Under that assump- cuts will take place as scheduled under current law. tion, in CBO’s baseline, federal deficits average $1.2 tril- lion per year and total $12.4 trillion over the 2019–2028 If those changes did not occur and current policies were period. As a percentage of gross domestic product continued instead, much larger deficits and much greater (GDP), the deficit increases from 3.5 percent in 2017 debt would result: The deficit would grow to 7.1 ­ ercent p to 5.4 percent in 2022 (see Table 4-1). Thereafter, the of GDP by 2028 and would average 6.3 percent of GDP deficit fluctuates between 4.6 percent and 5.2 percent of from 2023 to 2028, CBO estimates, compared with GDP from 2023 through 2028. Over the past 50 years, 4.9 percent in the baseline. With cumulative deficits of the annual deficit has averaged 2.9 percent of GDP. $15.0 trillion over the projection period, debt held by the public under that alternative fiscal scenario would That pattern of deficits is expected to occur mainly reach 105 percent of GDP by the end of 2028, an because, under current law, revenues and outlays would amount that has been exceeded only one time in the grow at different rates. Revenues would be roughly flat nation’s history. Moreover, the pressures that are pro- as a percentage of GDP over the next several years before jected to contribute to that rise would accelerate and rising steadily in the second half of the period. In con- drive up debt even more in subsequent decades. trast, outlays would increase in most years through 2028. Deficits 1. CBO constructs its baseline in accordance with provisions set Under the assumption that current laws governing taxes forth in the Balanced Budget and Emergency Deficit Control and spending generally remain in place, the amount Act of 1985 (Deficit Control Act, Public Law 99-177) and the by which the government’s outlays exceed its revenues Congressional Budget and Impoundment Control Act of 1974 would nearly double in nominal terms over the next sev- (P.L. 93-344). CBO’s baseline is not intended to be a forecast of budgetary outcomes; rather, it is meant to provide a neutral eral years, rising from $665 billion in 2017 to $1.3 tril- benchmark that policymakers can use to assess the potential lion in 2022. The budget deficit would increase more effects of policy decisions. slowly thereafter—to a total of $1.5 trillion in 2028. 80 The Budget and Economic Outlook: 2018 to 2028 April 2018 Figure 4-1 . Total Deficits or Surpluses Percentage of Gross Domestic Product 4 Actual Projected Surpluses 2 0 Deficits as a percentage of gross -2 domestic product are projected to increase over the next few years and -4 then largely stabilize. They exceed Average Deficit, their 50-year average throughout the 1968 to 2017 2018–2028 period. -6 (–2.9%) Deficits -8 -10 1968 1973 1978 1983 1988 1993 1998 2003 2008 2013 2018 2023 2028 Source: Congressional Budget Office. The Deficit in 2018 of Public Law 115-97 (referred to here as the 2017 tax CBO estimates that, under current law, the budget act), which, on net, will reduce revenues by an estimated deficit in 2018 will be $804 billion, $139 billion more $144 billion (or 0.7 percent of GDP) in 2018. than the shortfall last year. That increase would be even larger if not for shifts in the timing of certain payments. Outlays (adjusted to exclude the effects of the timing The 2018 deficit will be reduced by $44 billion because shifts)—which rose by 4.4 percent in 2017—will certain payments that would ordinarily have been made increase by 5.2 percent (or $208 billion) this year, to on October 1, 2017 (the first day of fiscal year 2018), $4.2 trillion, CBO estimates. All three major compo- were instead made in fiscal year 2017 because October 1 nents of spending contribute to that increase: fell on a weekend.2 For 2017, the net effect of those timing shifts and of similar shifts in spending from fiscal • Net outlays for interest are anticipated to jump year 2017 into fiscal year 2016 was to increase outlays from $263 billion in 2017 to $316 billion in 2018, by $3 billion. If not for those shifts, the estimated deficit an increase of 20 percent (or $53 billion). Higher in 2018 would have been $186 billion more than last interest rates this year account for most of that year’s shortfall, climbing from $662 billion in 2017 to change. $848 billion this year. • Discretionary outlays are expected to rise by 7 percent CBO projects that, under current law, revenues—which (or $84 billion) this year, significantly faster than rose by 1.5 percent in 2017—will increase by only the 2 percent increase in 2017 and the fastest rate of 0.6 percent (or $21 billion) this year, to $3.3 trillion. increase since 2010. The rapid growth projected for The main reason for the smaller increase is the effect discretionary outlays stems primarily from recently enacted legislation. 2. October 1 will fall on a weekend again in 2022, 2023, and 2028. • Mandatory spending is expected to increase by almost In such cases, certain payments due on October 1 are made at 3 percent (or $71 billion) in 2018, to $2.6 trillion. the end of September and thus are recorded in the previous fiscal year. Those shifts will noticeably boost spending and the deficit in That rate of growth, which occurs for many different fiscal years 2022 and 2028; the timing shifts will reduce federal reasons, is roughly half the rate of increase recorded spending and deficits in fiscal year 2024. for such outlays in 2017. CHAPTER 4: THE OUTLOOK FOR DEFICITS AND DEBT The Budget and Economic Outlook: 2018 to 2028 81 Table 4-1 . CBO’s Baseline Budget Projections, by Category Total Actual, 2019– 2019– 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2023 2028 In Billions of Dollars Revenues Individual income taxes 1,587 1,639 1,744 1,833 1,900 1,990 2,092 2,199 2,316 2,574 2,804 2,924 9,558 22,376 Payroll taxes 1,162 1,178 1,231 1,284 1,337 1,395 1,456 1,519 1,583 1,646 1,712 1,780 6,704 14,944 Corporate income taxes 297 243 276 307 327 353 388 421 447 449 431 448 1,651 3,847 Other 270 278 238 253 263 275 291 306 318 332 352 368 1,320 2,995 Total 3,316 3,338 3,490 3,678 3,827 4,012 4,228 4,444 4,663 5,002 5,299 5,520 19,234 44,162 On-budget 2,466 2,477 2,590 2,736 2,845 2,990 3,164 3,338 3,513 3,807 4,058 4,230 14,327 33,273 Off-budget a 851 860 899 941 981 1,022 1,063 1,106 1,150 1,194 1,241 1,290 4,907 10,889 Outlays Mandatory 2,519 2,546 2,719 2,861 3,031 3,266 3,392 3,513 3,760 3,983 4,189 4,524 15,269 35,238 Discretionary 1,200 1,280 1,362 1,340 1,348 1,380 1,406 1,436 1,481 1,522 1,562 1,608 6,836 14,445 Net interest 263 316 390 485 570 643 702 739 774 817 864 915 2,789 6,897 Total 3,982 4,142 4,470 4,685 4,949 5,288 5,500 5,688 6,015 6,322 6,615 7,046 24,893 56,580 On-budget 3,180 3,288 3,556 3,706 3,901 4,168 4,303 4,414 4,658 4,883 5,084 5,416 19,634 44,088 Off-budget a 801 853 915 980 1,048 1,120 1,197 1,274 1,357 1,439 1,531 1,631 5,259 12,492 Deficit (-) or Surplus -665 -804 -981 -1,008 -1,123 -1,276 -1,273 -1,244 -1,352 -1,320 -1,316 -1,526 -5,660 -12,418 On-budget -715 -811 -965 -969 -1,056 -1,178 -1,139 -1,076 -1,144 -1,076 -1,026 -1,186 -5,307 -10,815 Off-budget a 49 7 -16 -38 -67 -98 -134 -168 -208 -245 -290 -340 -352 -1,603 Debt Held by the Public 14,665 15,688 16,762 17,827 18,998 20,319 21,638 22,932 24,338 25,715 27,087 28,671 n.a. n.a. Memorandum: Gross Domestic Product 19,178 20,103 21,136 22,034 22,872 23,716 24,621 25,583 26,595 27,608 28,677 29,803 114,379 252,646 As a Percentage of Gross Domestic Product Revenues Individual income taxes 8.3 8.2 8.3 8.3 8.3 8.4 8.5 8.6 8.7 9.3 9.8 9.8 8.4 8.9 Payroll taxes 6.1 5.9 5.8 5.8 5.8 5.9 5.9 5.9 6.0 6.0 6.0 6.0 5.9 5.9 Corporate income taxes 1.5 1.2 1.3 1.4 1.4 1.5 1.6 1.6 1.7 1.6 1.5 1.5 1.4 1.5 Other 1.4 1.4 1.1 1.1 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 Total 17.3 16.6 16.5 16.7 16.7 16.9 17.2 17.4 17.5 18.1 18.5 18.5 16.8 17.5 On-budget 12.9 12.3 12.3 12.4 12.4 12.6 12.9 13.0 13.2 13.8 14.2 14.2 12.5 13.2 Off-budget a 4.4 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 Outlays Mandatory 13.1 12.7 12.9 13.0 13.3 13.8 13.8 13.7 14.1 14.4 14.6 15.2 13.3 13.9 Discretionary 6.3 6.4 6.4 6.1 5.9 5.8 5.7 5.6 5.6 5.5 5.4 5.4 6.0 5.7 Net interest 1.4 1.6 1.8 2.2 2.5 2.7 2.8 2.9 2.9 3.0 3.0 3.1 2.4 2.7 Total 20.8 20.6 21.2 21.3 21.6 22.3 22.3 22.2 22.6 22.9 23.1 23.6 21.8 22.4 On-budget 16.6 16.4 16.8 16.8 17.1 17.6 17.5 17.3 17.5 17.7 17.7 18.2 17.2 17.5 Off-budget a 4.2 4.2 4.3 4.4 4.6 4.7 4.9 5.0 5.1 5.2 5.3 5.5 4.6 4.9 Deficit (-) or Surplus -3.5 -4.0 -4.6 -4.6 -4.9 -5.4 -5.2 -4.9 -5.1 -4.8 -4.6 -5.1 -4.9 -4.9 On-budget -3.7 -4.0 -4.6 -4.4 -4.6 -5.0 -4.6 -4.2 -4.3 -3.9 -3.6 -4.0 -4.6 -4.3 Off-budget a 0.3 * -0.1 -0.2 -0.3 -0.4 -0.5 -0.7 -0.8 -0.9 -1.0 -1.1 -0.3 -0.6 Debt Held by the Public 76.5 78.0 79.3 80.9 83.1 85.7 87.9 89.6 91.5 93.1 94.5 96.2 n.a. n.a. Source: Congressional Budget Office. n.a. = not applicable; * = between zero and 0.05 percent. a.The revenues and outlays of the Social Security trust funds and the net cash flow of the Postal Service are classified as off-budget. 82 The Budget and Economic Outlook: 2018 to 2028 April 2018 Table 4-2 . Key Projections in CBO’s Baseline Percentage of Gross Domestic Product Projected Annual Average 2018 2019 2020–2023 2024–2028 Revenues Individual income taxes 8.2 8.3 8.4 9.3 Payroll taxes 5.9 5.8 5.9 6.0 Corporate income taxes 1.2 1.3 1.5 1.6 Other 1.4 1.1 1.2 1.2 Total Revenues 16.6 16.5 16.9 18.0 Outlays Mandatory Social Security 4.9 4.9 5.2 5.7 Major health care programs a 5.2 5.3 5.6 6.3 Other 2.6 2.6 2.6 2.4 Subtotal 12.7 12.9 13.5 14.4 Discretionary 6.4 6.4 5.9 5.5 Net interest 1.6 1.8 2.6 3.0 Total Outlays 20.6 21.2 21.9 22.9 Deficit -4.0 -4.6 -5.0 -4.9 Debt Held by the Public at the End of the Period 78.0 79.3 87.9 96.2 Memorandum: Social Security Revenues b 4.4 4.4 4.5 4.6 Outlays c 4.9 4.9 5.2 5.7 Contribution to the Federal Deficit d -0.4 -0.5 -0.7 -1.2 Medicare Revenues b 1.4 1.4 1.5 1.5 Outlays c 3.5 3.7 4.0 4.6 Offsetting receipts -0.6 -0.6 -0.7 -0.8 Contribution to the Federal Deficit d -1.5 -1.6 -1.9 -2.3 Gross Domestic Product at the End of the Period (Trillions of dollars) 20.1 21.1 24.6 29.8 Source: Congressional Budget Office. This table satisfies a requirement specified in section 3111 of S. Con. Res. 11, the Concurrent Resolution on the Budget for Fiscal Year 2016. a. Consists of spending for Medicare (net of premiums and other offsetting receipts), Medicaid, and the Children’s Health Insurance Program, as well as outlays to subsidize health insurance purchased through the marketplaces established under the Affordable Care Act and related spending. b. Includes payroll taxes other than those paid by the federal government on behalf of its employees. Those payments are intragovernmental transactions. Also includes income taxes paid on Social Security benefits, which are credited to the trust funds. c. Does not include outlays related to administration of the program, which are discretionary. For Social Security, outlays do not include intragovernmental offsetting receipts stemming from the employer’s share of payroll taxes paid to the Social Security trust funds by federal agencies on behalf of their employees. d. The net increase in the deficit shown in this table differs from the change in the trust fund balance for the associated program. It does not include intragovernmental transactions, interest earned on balances, or outlays related to administration of the program. CHAPTER 4: THE OUTLOOK FOR DEFICITS AND DEBT The Budget and Economic Outlook: 2018 to 2028 83 Table 4-3 . CBO’s Baseline Outlay and Deficit Projections Adjusted to Exclude the Effects of Timing Shifts Actual, 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 In Billions of Dollars Payments That Are Shifted in CBO's Baseline a 3 -44 0 0 0 62 5 -67 0 0 0 89 Outlays Adjusted for Timing Shifts Mandatory 2,516 2,587 2,719 2,861 3,031 3,208 3,387 3,575 3,760 3,983 4,189 4,440 Discretionary 1,200 1,284 1,362 1,340 1,348 1,375 1,406 1,441 1,481 1,522 1,562 1,602 Net interest 263 316 390 485 570 643 702 739 774 817 864 915 Total 3,978 4,186 4,470 4,685 4,949 5,226 5,495 5,755 6,015 6,322 6,615 6,957 Deficit Adjusted to Exclude Timing Shifts -662 -848 -981 -1,008 -1,123 -1,214 -1,267 -1,311 -1,352 -1,320 -1,316 -1,437 As a Percentage of Gross Domestic Product Outlays Adjusted for Timing Shifts Mandatory 13.1 12.9 12.9 13.0 13.3 13.5 13.8 14.0 14.1 14.4 14.6 14.9 Discretionary 6.3 6.4 6.4 6.1 5.9 5.8 5.7 5.6 5.6 5.5 5.4 5.4 Net interest 1.4 1.6 1.8 2.2 2.5 2.7 2.8 2.9 2.9 3.0 3.0 3.1 Total 20.7 20.8 21.2 21.3 21.6 22.0 22.3 22.5 22.6 22.9 23.1 23.3 Deficit Adjusted to Exclude Timing Shifts -3.5 -4.2 -4.6 -4.6 -4.9 -5.1 -5.1 -5.1 -5.1 -4.8 -4.6 -4.8 Memorandum: Baseline Deficit In billions of dollars -665 -804 -981 -1,008 -1,123 -1,276 -1,273 -1,244 -1,352 -1,320 -1,316 -1,526 As a percentage of GDP -3.5 -4.0 -4.6 -4.6 -4.9 -5.4 -5.2 -4.9 -5.1 -4.8 -4.6 -5.1 Source: Congressional Budget Office. a.When October 1 falls on a weekend, certain payments that are due on that date are made at the end of September and thus are recorded in the previous fiscal year. Those shifts primarily affect mandatory spending and, to a much lesser degree, discretionary spending. Net interest outlays are not affected. With adjustments to exclude the effects of timing shifts, 2022, outlays rise faster, at an average annual rate of this year’s deficit is projected to total 4.2 percent of GDP, 5.7 percent (see Figure 4-2). well above last year’s level of 3.5 percent (see Table 4-3). Because the rate of growth of revenues is significantly Between 2022 and 2025, in CBO’s baseline, deficits less than the rate at which the agency expects GDP to remain at 5.1 percent before dipping at the end of the increase, revenues are estimated to drop as a percentage period, primarily because projected revenues increase of GDP in 2018, from 17.3 percent in 2017 to 16.6 per- more rapidly as many provisions of the 2017 tax act cent. That drop explains nearly all of the increase in the expire. Outlays increase more slowly after 2022, mostly deficit relative to the economy, as CBO’s projection of because the rate of increase in net interest outlays slows. outlays (adjusted to exclude shifts in timing) increases by only 0.1 percent of GDP. Growth of Revenues. Revenues are expected to grow modestly relative to GDP over the first half of the Deficits From 2019 to 2028 projection period, rising from 16.6 percent in 2018 to In CBO’s baseline projections, the budget deficit 16.9 percent in 2022. Receipts from corporate income (adjusted to exclude shifts in timing) continues increas- taxes are projected to grow from 1.2 percent to 1.5 per- ing after 2018, rising to 5.1 percent in 2022, a level cent of GDP over that period, largely because recently exceeded only five times in the past 50 years. Although observed weakness in corporate tax receipts—beyond the growth in revenues accelerates after this year, increas- that which can be explained by currently available data ing at an average annual rate of 4.7 percent through on business activity—is expected to gradually dissipate. 84 The Budget and Economic Outlook: 2018 to 2028 April 2018 Figure 4-2 . Total Revenues and Outlays Percentage of Gross Domestic Product 30 Actual Projected Average Outlays, 1968 to 2017 25 (20.3%) Outlays 20 15 Revenues Average Revenues, 1968 to 2017 10 (17.4%) 5 0 1968 1973 1978 1983 1988 1993 1998 2003 2008 2013 2018 2023 2028 Source: Congressional Budget Office. Individual income tax receipts are projected to rise from after 2022, an annual average of 4.9 percent, is 0.8 per- 8.2 percent of GDP in 2018 to 8.4 percent in 2022. centage points slower than CBO projects for the years The most significant source of that increase is continued between 2018 and 2022. economic growth, which will cause people’s income, in the aggregate, to rise faster than the rate of inflation. Net interest outlays grow about three times faster, on average, from 2018 to 2022 than they do later in the CBO projects that if current laws generally remained projection period, accounting for most of the dip in the unchanged, revenues would grow more quickly toward projected rate of growth in total outlays during the latter the end of the projection period, increasing from part of the 10-year period. That slower rate of increase in 16.9 percent of GDP in 2022 to 18.5 percent in 2027 later years occurs primarily because interest rates under and 2028. An increase in receipts from individual CBO’s economic forecast fall slightly over the second income taxes, from 8.4 percent of GDP in 2022 to half of the projection period after rising during the first 9.8 percent in 2028, explains much of that growth. half. Nevertheless, net interest outlays in CBO’s baseline Most of the increase in individual income taxes results reach 3.1 percent of GDP in 2028, nearly double the from the scheduled expiration, after tax year 2025, of 1.6 percent projected for 2018. nearly all the provisions of the 2017 tax law that affect individual income taxes. Those expirations will cause tax Mandatory outlays are projected to increase steadily over liabilities to rise in calendar year 2026, boosting receipts the coming decade, rising by about 5.5 percent a year, in 2027 and 2028. on average, in both halves of the projection period. By 2028, spending for mandatory programs (adjusted to Growth of Outlays. Total outlays are projected to rise exclude timing shifts) would total 14.9 percent of GDP, over the projection period, boosted by increased spend- up from 12.9 percent in 2018. By comparison, manda- ing for net interest costs and large benefit programs (see tory outlays have exceeded 14.0 percent of GDP only Figure 4-3). In the baseline, outlays (adjusted to exclude once since 1962 (the earliest year for which such data shifts in timing) rise from 20.8 percent of GDP in 2018 have been reported). to 23.3 percent in 2028. The projected rate of increase CHAPTER 4: THE OUTLOOK FOR DEFICITS AND DEBT The Budget and Economic Outlook: 2018 to 2028 85 Figure 4-3 . Outlays and Revenues Projected in CBO’s Baseline, Compared With Actual Values 25 and 50 Years Ago Percentage of Gross Domestic Product Mandatory Outlays Discretionary Outlays Net Interest Social Major Health Care Security Programsa Other Defense Nondefense 1968 2.6 0.7 2.2 9.1 4.0 1.2 1993 4.4 3.0 2.4 4.3 3.6 2.9 2018 4.9 5.2 2.6 3.1 3.3 1.6 2028 6.0 6.8 2.4 2.6 2.8 3.1 Total Outlays Total Revenues Deficit 1968 19.8 17.0 -2.8 1993 20.7 17.0 -3.8 2018 20.6 16.6 -4.0 2028 23.6 18.5 -5.1 Source: Congressional Budget Office. a. Consists of spending on Medicare (net of premiums and other offsetting receipts), Medicaid, and the Children’s Health Insurance Program as well as outlays to subsidize health insurance purchased through the marketplaces established under the Affordable Care Act and related spending. Growth in spending for Social Security and Medicare annual average rate of 2.6 percent over the second half (adjusted to exclude the effects of timing shifts) accounts of the projection period—reflecting the assumption that for roughly three-quarters of the increase in mandatory funding will grow with inflation once those caps expire spending over the 10-year period. The aging of the pop- after 2021.3 Because that rate of growth is slower than ulation and rising health care costs are key drivers of that the growth rate projected for the economy, such out- spending: lays continue falling in CBO’s baseline as a percentage of GDP. In 2028, discretionary spending is projected • The number of people age 65 or older is now more to total 5.4 percent of GDP, about 1 percentage point than twice what it was 50 years ago. Over the next below CBO’s estimate of such outlays in 2018. decade, as members of the baby-boom generation age and as life expectancy continues to increase, Debt that number is expected to rise by about one-third, Federal debt held by the public consists mostly of the boosting the number of people receiving Social securities that the Treasury issues to raise cash to fund Security and Medicare benefits (see Figure 4-4). the federal government’s activities and to pay off its maturing liabilities.4 The Treasury borrows money from • Health care costs per beneficiary are projected to the public by selling securities in the capital markets; grow faster than the economy over the long term, that debt is purchased by various buyers in the United contributing to growth in spending for Medicare and Medicaid in particular. 3. In CBO’s baseline projections, discretionary funding related to federal personnel is inflated using the employment cost index CBO projects that, under current law, discretionary for wages and salaries of workers in private industry; other spending would fall in dollar terms in 2020 as the discretionary funding is adjusted using the gross domestic statutory caps on discretionary funding drop after 2019. product price index. Discretionary spending is projected to increase at an 4. A small amount of debt held by the public is issued by other agencies, mainly the Tennessee Valley Authority. 86 The Budget and Economic Outlook: 2018 to 2028 April 2018 Figure 4-4 . Population, by Age Group Millions of People 300 Actual Projected 250 Age 65 or Older 200 150 Enrollment in Social Security and Medicare is expected to rise as the 100 number of people age 65 or older grows. Ages 20 to 64 50 0 1968 1973 1978 1983 1988 1993 1998 2003 2008 2013 2018 2023 2028 Source: Congressional Budget Office. States, by private investors overseas, and by the central for the economy and for the federal budget, including banks of other countries. Of the $14.7 trillion in federal these: debt held by the public at the end of 2017, 57 per- cent ($8.3 trillion) was held by domestic investors and • When interest rates returned to more typical, higher 43 percent ($6.3 trillion) was held by foreign investors.5 levels, federal spending on interest payments would Other measures of federal debt are sometimes used for increase substantially. various purposes, such as to provide a more comprehen- sive picture of the government’s financial condition or to • Because federal borrowing reduces national saving account for debt held by federal trust funds. over time, the nation’s capital stock ultimately would be smaller, and productivity and total wages would be Debt Held by the Public lower than would be the case if the debt was smaller.6 Under the assumptions that govern CBO’s baseline, the federal government is projected to borrow another • Lawmakers would have less flexibility than otherwise $14.0 trillion from the end of 2017 through 2028, to use tax and spending policies to respond to boosting debt held by the public to 96 percent of GDP unexpected challenges. by the end of the projection period (see Table 4-4). That amount of debt relative to the size of the economy would • The likelihood of a fiscal crisis in the United be the greatest since 1946 and more than double the States would increase. Specifically, the risk would 50-year average of 41 percent (see Summary Figure 2 on rise of investors’ becoming unwilling to finance page 5). the government’s borrowing unless they were Consequences of Growing Debt. Such high and rising 6. National saving is total saving by all sectors of the economy: debt would have significant negative consequences, both personal saving, business saving (corporate after-tax profits not paid as dividends), and government saving (budget surpluses). National saving represents all income not consumed, publicly or 5. The largest domestic holders of public Treasury debt are the privately, during a given period. Federal Reserve (20 percent) and mutual funds (11 percent). Investors in China and Japan have the largest foreign holdings The nation’s capital stock consists of land and the stock of Treasury securities, together accounting for 16 percent of of products set aside to support future production and U.S. public debt. For additional information, see Congressional consumption, including business inventories and fixed capital Budget Office, Federal Debt and Interest Costs (December 2010), (residential and nonresidential structures, producers’ durable Chapter 1, www.cbo.gov/publication/21960. equipment, and intellectual property products, such as software). CHAPTER 4: THE OUTLOOK FOR DEFICITS AND DEBT The Budget and Economic Outlook: 2018 to 2028 87 Table 4-4 . Federal Debt Projected in CBO’s Baseline Billions of Dollars Actual, 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 Debt Held by the Public at the Beginning of the Year 14,168 14,665 15,688 16,762 17,827 18,998 20,319 21,638 22,932 24,338 25,715 27,087 Changes in Debt Held by the Public Deficit 665 804 981 1,008 1,123 1,276 1,273 1,244 1,352 1,320 1,316 1,526 Other means of financing -168 218 94 58 48 45 46 50 54 56 57 58 Total 498 1,022 1,074 1,065 1,171 1,321 1,319 1,294 1,406 1,376 1,373 1,584 Debt Held by the Public at the End of the Year In billions of dollars 14,665 15,688 16,762 17,827 18,998 20,319 21,638 22,932 24,338 25,715 27,087 28,671 As a percentage of GDP 76.5 78.0 79.3 80.9 83.1 85.7 87.9 89.6 91.5 93.1 94.5 96.2 Memorandum: Debt Held by the Public Minus Financial Assets a In billions of dollars 13,198 14,002 14,983 15,990 17,113 18,389 19,662 20,906 22,258 23,578 24,894 26,420 As a percentage of GDP 68.8 69.7 70.9 72.6 74.8 77.5 79.9 81.7 83.7 85.4 86.8 88.6 Gross Federal Debt b 20,206 21,375 22,546 23,675 24,877 26,179 27,468 28,730 30,042 31,367 32,542 33,851  c Debt Subject to Limit 20,209 21,378 22,550 23,680 24,883 26,185 27,475 28,738 30,050 31,376 32,552 33,861 Average Interest Rate on Debt Held by the Public (Percent) 2.0 2.3 2.6 3.0 3.3 3.5 3.5 3.5 3.5 3.4 3.4 3.4 Source: Congressional Budget Office. GDP = gross domestic product. a. Debt held by the public minus the value of outstanding student loans and other credit transactions, cash balances, and various financial instruments. b. Federal debt held by the public plus Treasury securities held by federal trust funds and other government accounts. c. The amount of federal debt that is subject to the overall limit set in law. Debt subject to limit differs from gross federal debt mainly in that it excludes most debt issued by agencies other than the Treasury and the Federal Financing Bank and includes certain other adjustments that are excluded from gross debt. That limit was most recently set at $20.5 trillion but has been suspended through March 1, 2019. On March 2, 2019, the debt limit will be raised to its previous level plus the amount of federal borrowing that occurred while the limit was suspended. compensated with very high interest rates. If that associated with federal credit programs such as student occurred, interest rates on federal debt would rise loans (because only the subsidy costs of those programs, suddenly and sharply relative to rates of return on calculated on a present-value basis, are reflected in the other assets. budget deficit).7 How Debt Is Related to Deficits. The net amount the For two main reasons, CBO projects that the increase Treasury borrows by selling securities (the amounts in debt held by the public will exceed the $804 billion that are sold minus the amounts that have matured) is deficit in 2018 by $218 billion. First, CBO expects the determined primarily by the annual budget deficit. In Treasury to borrow an additional $140 billion in order addition, several factors—collectively labeled “other to increase its cash balance in 2018. That balance was means of financing” and not directly included in bud- get totals—also affect the government’s need to borrow 7. Present value is a single number that expresses a flow of revenues from the public. Those factors include changes in the or outlays over time in terms of an equivalent lump sum received government’s cash balances, as well as the cash flows or paid at a specific time. 88 The Budget and Economic Outlook: 2018 to 2028 April 2018 unusually small at the end of 2017 and the beginning of rise by $12.5 trillion over that period and to total 2018 as a result of debt-ceiling constraints. $33.9 trillion at the end of 2028. About 15 percent of that sum would be debt held by government Second, the government’s need for cash to finance new accounts. student loans and other credit programs will boost the debt by roughly $80 billion in 2018. The subsidy • Debt subject to limit is the amount of debt that is costs for those credit programs are part of the projected subject to the statutory limit on federal borrowing; deficit for each year from 2019 to 2028, but the cash it differs from gross federal debt mainly in that outlays needed to finance those programs each year are it excludes most debt issued by agencies other greater than the net subsidy costs, which are calculated than the Treasury and the Federal Financing Bank on a present-value basis. (For more information on and includes certain other adjustments that are CBO’s treatment of credit programs, see the section excluded from gross debt.9 Currently, there is titled “Other Mandatory Programs” in Chapter 2.) As a no statutory limit on the issuance of new federal result, CBO estimates that the government will need to debt because the Bipartisan Budget Act of 2018 borrow between $45 billion and $94 billion more per (P.L. 115-123) suspended the debt ceiling from year during that period than the budget deficits would February 9, 2018, through March 1, 2019. In suggest. the absence of any legislative action on the debt limit before the suspension ends, the amount of Other Measures of Debt borrowing accumulated during that period will be Three other measures are sometimes used in reference to added to the previous debt limit of $20.5 trillion federal debt: on March 2, 2019. In CBO’s baseline projections, the amount of outstanding debt subject to limit • Debt held by the public minus financial assets increases from $21.4 trillion at the end of 2018 to subtracts from debt held by the public the value of $33.9 trillion at the end of 2028. (For the purpose of the government’s financial assets, such as student those projections, CBO assumes that increases in the loans. That measure provides a more comprehensive statutory ceiling will occur as necessary.) picture of the government’s financial condition and its overall effect on credit markets than does debt Alternative Assumptions About Fiscal Policy held by the public. Calculating that measure is CBO’s baseline budget projections—which are con- not straightforward, however, because neither the structed in accordance with provisions of law—are financial assets that are included nor the methods intended to show what would happen to federal spend- for evaluating them are well-defined. Under ing, revenues, and deficits if current laws generally CBO’s baseline assumptions, that measure is about remained unchanged. To assist policymakers and analysts 10 percent smaller than debt alone but varies roughly who may hold differing views about the most useful in line with it. benchmark against which to consider possible changes to laws, CBO has estimated the effects on budgetary • Gross federal debt consists of debt held by the public projections of some alternative assumptions about future and debt held by government accounts (for example, policies (see Table 4-5 on page 90). The discussion the Social Security trust funds). The latter type of below focuses on how those policy actions would directly debt does not directly affect the economy and has no affect revenues and outlays. (Those estimates do not net effect on the budget. In CBO’s projections, debt incorporate any economic effects of changes in fiscal held by the public increases by $13.0 trillion between policies relative to current law.) Such changes also would the end of 2018 and the end of 2028, and debt held by government accounts falls by $0.5 trillion, reflecting declines in the balances of many trust been exhausted, even though there is no legal authority to make such payments. funds.8 As a result, gross federal debt is projected to 9. The Federal Financing Bank, a government corporation under the general supervision of the Treasury Department, assists 8. In keeping with the rules in section 257 of the Deficit Control federal agencies in managing their borrowing and lending Act, CBO’s baseline incorporates the assumption that scheduled programs. It can issue up to $15 billion of its own debt securities, payments will continue to be made in full after a trust fund has and that amount does not count against the debt limit. CHAPTER 4: THE OUTLOOK FOR DEFICITS AND DEBT The Budget and Economic Outlook: 2018 to 2028 89 influence the costs of servicing the federal debt (shown (as scheduled under current law) and that such funding separately in the table). will increase with inflation after those caps expire in 2021. In 2028, discretionary outlays under that scenario Emergency Spending would decline to 4.9 percent of GDP in 2028. Recently, lawmakers provided $102 billion in nonde- fense discretionary funding designated as emergency Revenues requirements related to Hurricanes Irma, Harvey, and A number of tax provisions have recently expired or are Maria and wildfires in western states.10 Such funding scheduled to expire over the next decade. They include is not constrained by the caps and, following the rules many provisions of the 2017 tax act, most of which governing CBO’s baseline projections, is assumed to be expire at the end of 2025 (see Appendix B). The expir- provided each year, with adjustments for inflation. But ing provisions affect major elements of the individual those amounts are very large by historical standards. If, income tax, including provisions that specify tax rates instead, lawmakers chose to provide $11 billion—the and brackets, the amount of deductions that are allowed, average annual amount of such funding declared an the size and refundability of the child tax credit, and emergency requirement from 2012 through 2017—each the reach of the alternative minimum tax.11 In addition, year after 2018, with adjustments for inflation, discre- the act’s expansion of the estate and gift tax exemption tionary outlays would be $577 billion lower between expires at the end of 2025. According to estimates by 2019 and 2028 than in CBO’s baseline. the staff of the Joint Committee on Taxation (JCT), if those and certain other expiring elements of the 2017 tax Other Discretionary Spending act were extended, deficits would be larger than those in Policymakers could vary discretionary funding in many CBO’s baseline, on net, by $650 billion over the 2019– ways from the amounts projected in the baseline. For 2028 period (excluding added debt-service costs); most example: If, after 2018, appropriations were to grow each of those effects would occur in 2027 and 2028. year through 2028 at the same rate as inflation, rather than being constrained by the caps, discretionary spend- The 2017 tax act also temporarily expanded the ability ing during that period would be $1.7 trillion higher than of businesses to immediately deduct the cost of their it is in CBO’s baseline. All told, discretionary outlays investments. That bonus depreciation was expanded to under that scenario would fall from 6.4 percent of GDP 100 percent of the cost of such investments through in fiscal year 2018 to 6.1 percent in 2028. By compari- 2022; it then phases down over the 2023–2026 period. son, in the baseline such spending is projected to end up Extending expensing at 100 percent, thus averting the at 5.4 percent of GDP in 2028. phasedown, would increase deficits by $122 billion (excluding added debt-service costs) over the 2019–2028 If, by contrast, lawmakers kept appropriations for 2019 period. through 2028 at the nominal 2018 amount, total dis- cretionary outlays would be $0.2 trillion lower over that Deficits also would increase if delays in implementing period than in the baseline. Under that scenario (some- certain taxes established by the Affordable Care Act times called a freeze in regular appropriations), total were extended or made permanent. The Extension of discretionary spending would dip below the amount Continuing Appropriations Act, 2018 (P.L. 115-120), in CBO’s baseline in 2019, exceed baseline amounts temporarily suspended or delayed the medical device between 2020 and 2023, and then again drop below excise tax, the excise tax on high-cost employment-based the baseline (by increasing amounts) between 2024 and health care coverage, and the annual fee on health 2028. That pattern reflects certain assumptions incorpo- insurance providers. Permanently repealing those taxes rated in CBO’s baseline—specifically, that the caps on would reduce revenues by a total of $324 billion over the most new discretionary funding will fall sharply in 2020 2019–2028 period, JCT estimates. 10. Lawmakers have also provided $6 billion in defense funding that was declared an emergency requirement for 2018 and an 11. The alternative minimum tax is similar to the regular income additional $7 billion in funding designated as disaster funding tax, but its calculation includes fewer exemptions, deductions, (as defined in the Budget Control Act of 2011). Both types of and rates. People who file individual income tax returns must funding have been extrapolated in CBO’s baseline, although the calculate the tax owed under each system and pay the larger of disaster funding is subject to constraints in future years. the two amounts. 90 The Budget and Economic Outlook: 2018 to 2028 April 2018 Table 4-5 . Budgetary Effects of Selected Policy Alternatives Not Included in CBO’s Baseline Billions of Dollars Total 2019– 2019– 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2023 2028 Policy Alternatives That Affect Discretionary Outlays Provide Emergency Nondefense Funding at the Average Historical Amount a Decrease in the deficit b 0 14 30 40 49 58 66 73 79 81 86 192 577 Debt service 0 * 1 2 4 6 8 10 13 16 20 14 82 Increase Discretionary Appropriations at the Rate of Inflation After 2018 c Increase (-) in the deficit b 0 -9 -104 -153 -176 -189 -200 -207 -213 -220 -225 -631 -1,696 Debt service 0 * -2 -7 -14 -21 -27 -33 -40 -48 -59 -44 -252 Freeze Discretionary Appropriations at the 2018 Amount d Increase (-) or decrease in the deficit b 0 10 -56 -68 -52 -27 1 36 72 109 149 -193 175 Debt service 0 * -1 -3 -6 -7 -7 -7 -5 -2 3 -16 -34 Policy Alternatives That Affect the Tax Code e Extend Certain Expiring Revenue Provisions Extend Certain Provisions of the 2017 Tax Act f 0 * -3 -4 -4 -5 -5 -11 -103 -248 -266 -16 -650 Extend Expensing of Equipment and Property at a Rate of 100 Percent g 0 0 0 0 0 -6 -14 -21 -26 -29 -25 -6 -122 Repeal Certain Postponed or Suspended Health Taxes h 0 0 -15 -16 -24 -32 -37 -41 -47 -53 -60 -86 -324 Extend Other Expiring Revenue Provisions i -1 -4 -5 -5 -6 -8 -9 -10 -11 -12 -13 -28 -85 Total increase (-) in the deficit b -1 -5 -22 -25 -34 -51 -66 -84 -187 -343 -364 -137 -1,180 Debt service * * -1 -2 -3 -4 -6 -9 -13 -22 -37 -9 -96 Continued The Bipartisan Budget Act of 2018 extended a number in place and also to provide more typical levels of fund- of expiring tax provisions through December 31, 2017. ing for emergencies, far larger deficits and much greater If roughly 30 of those provisions, plus a number of trade debt would result than are shown in CBO’s current programs that are scheduled to expire between 2020 and baseline. Relative to the baseline projections for the 2026, were permanently extended, JCT and CBO esti- 2019–2028 period, deficits would be larger by a total mate that revenues would be lower by a total of $85 bil- of $2.6 trillion (including debt-service costs), causing lion over the 2019–2028 period. cumulative deficits of nearly $15 trillion over that period if the following policy decisions were made: In total, if all of those tax provisions were permanently extended, CBO and JCT estimate, revenues would be • More than 50 expiring revenue provisions were lower by a total of $1.2 trillion over the 2019–2028 extended, including the individual income tax period. provisions of the 2017 tax act. An Alternative Fiscal Scenario • Delays in implementing certain taxes established If a combination of those changes to current law was by the Affordable Care Act were extended or made made so as to maintain major policies that are currently permanent. CHAPTER 4: THE OUTLOOK FOR DEFICITS AND DEBT The Budget and Economic Outlook: 2018 to 2028 91 Table 4-5.Continued Budgetary Effects of Selected Policy Alternatives Not Included in CBO’s Baseline Billions of Dollars Total 2019– 2019– 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2023 2028 Policy Alternatives That Affect Spending and Revenues Changes in Deficits From the Alternative Fiscal Scenario j Increase (-) in the deficit b -1 * -96 -138 -160 -182 -200 -218 -321 -481 -503 -576 -2,300 Debt service * * -2 -6 -12 -19 -25 -31 -40 -54 -77 -39 -267 Memorandum: Alternative Fiscal Scenario Revenues 3,336 3,485 3,656 3,802 3,978 4,177 4,379 4,579 4,802 4,973 5,173 19,097 43,003 Outlays 4,142 4,465 4,761 5,069 5,427 5,650 5,847 6,181 6,484 6,824 7,279 25,372 57,987 Deficit in CBO's April 2018 Baseline -804 -981 -1,008 -1,123 -1,276 -1,273 -1,244 -1,352 -1,320 -1,316 -1,526 -5,660 -12,418 Sources: Congressional Budget Office; staff of the Joint Committee on Taxation. n.a. = not applicable; * = between -$500 million and $500 million. a.For this alternative, CBO does not extrapolate the $102 billion in budget authority for nondefense discretionary programs related to Hurricanes Harvey, Irma, and Maria and wildfires in western states that was designated as an emergency requirement. Rather, the alternative incorporates the assumption that such funding will fall to $11 billion in 2019—the average annual amount of nondefense discretionary funding declared an emergency requirement from 2012 through 2017—and will grow at the rate of inflation from that 2019 level. b.Excludes debt service. c.These estimates reflect the assumption that appropriations will not be constrained by caps set by the Budget Control Act of 2011 (as amended) and will instead grow at the rate of inflation from their 2018 amount. Discretionary funding related to federal personnel is inflated using the employment cost index for wages and salaries; other discretionary funding is inflated using the gross domestic product price index. d.This option reflects the assumption that appropriations would generally be frozen at the 2018 level through 2028. e.The estimates are mainly from the staff of the Joint Committee on Taxation and are preliminary. The estimates include some effects on outlays for refundable tax credits. The option includes the effects of extending several expiring trade provisions that affect customs duties. f. This alternative incorporates the assumption that lawmakers will permanently extend many provisions of Public Law 115-97 (called the 2017 tax act in this report). Most significantly, this alternative includes extension of the provisions that lower individual income tax rates, expand the income tax base, expand the child credit, reduce the amount of income subject to the alternative minimum tax, and increase the estate and gift tax exemption. It does not incorporate the assumption that the expensing of equipment and property is extended; the effects of that alternative are shown separately. g.This alternative would extend the provisions that allow businesses with large amounts of investment to expense (immediately deduct from their taxable income) the cost of their investment in equipment and certain other property. Under current law, the portion that can be expensed is 100 percent through 2022, 80 percent in 2023, 60 percent in 2024, 40 percent in 2025, and 20 percent in 2026, after which the provisions expire. The option would extend the 100 percent allowance permanently beyond 2022. h.This alternative would repeal the health insurance provider tax, the medical device excise tax, and the excise tax on certain health insurance plans with high premiums. All were postponed for either one or two years in the Extension of Continuing Appropriations Act, 2018. The component of the estimate from repealing the high-premium excise tax does not include largely offsetting effects that would result because some people who would otherwise have been enrolled in insurance through Medicaid or the marketplaces established by the Affordable Care Act would instead enroll in employment-based coverage. i. This alternative would extend about 30 tax provisions that generally expired on December 31, 2017, and were extended by the Bipartisan Budget Act of 2018. It also includes the extension of a number of trade provisions scheduled to expire between 2020 and 2026 that affect customs duties. It does not include an extension of the expensing provisions or a repeal of certain health-related provisions; those effects are shown separately. j. The alternative fiscal scenario incorporates all of the policy alternatives in this table except the one labeled “Freeze Discretionary Appropriations at the 2018 Amount .” 92 The Budget and Economic Outlook: 2018 to 2028 April 2018 • The caps on discretionary appropriations did not take Under that scenario, revenues from 2019 through 2028 effect and appropriations instead grew each year from would average 17.0 percent of GDP, almost 0.5 per- their 2018 amount at the rate of inflation. centage points below their 50-year average, and outlays would average 23.0 percent, roughly 3 percentage points • Lawmakers provided $11 billion in appropriations above their 50-year average. Deficits would average designated as an emergency requirement for nearly 6 percent of GDP through 2028, a full percent- nondefense discretionary programs each year between age point higher than under CBO’s baseline. Debt held 2019 and 2028 (with adjustments for inflation), by the public would reach about 105 percent of GDP rather than the roughly $100 billion a year projected by the end of 2028—the largest share since 1946—and in the baseline. would rise even more sharply in subsequent decades. APPENDI X A Appendix A Changes in CBO’s Baseline Projections Since June 2017  Overview CBO estimates that the effects of those laws will boost The Congressional Budget Office anticipates that in the this year’s deficit by $271 billion. That increase is absence of further legislation affecting spending and slightly offset by changes related to CBO’s updated revenues, the budget deficit for fiscal year 2018 will economic forecast and by technical revisions to projec- total $804 billion. That amount is $242 billion larger tions, which together reduce the estimated deficit for than the $563 billion deficit that CBO projected in 2018 by $29 billion. June 2017, when the agency published its previous baseline (see Table A-1).1 CBO now projects that the Legislative changes—which are estimated to reduce cumulative deficit for the 2018–2027 period would be revenues and increase outlays—led CBO to increase about $1.6 trillion larger than shown in its June pro- its projection of the cumulative deficit over the 2018– jections—$11.7 trillion rather than $10.1 trillion—if 2027 period by $2.7 trillion. Those changes were offset current laws generally remained the same. All told, in in part by the effects of revisions to CBO’s economic CBO’s new projections, revenues over that period are forecast, which led to $1.0 trillion in reductions to about 2 percent less, and outlays are about 1 percent projected deficits, almost entirely because of increased more, than the agency projected last June. projections of revenues. (About half of that revenue increase stems from macroeconomic feedback related to The differences between CBO’s current projections Public Law 115-­ 7, referred to here as the 2017 tax act.) 9 and those it published in June consist of three types of Technical updates to the agency’s projections of revenues changes: and outlays largely offset one another, decreasing the 10-­ ear total deficit by $57 billion. y • Legislative changes, which result from the enactment of new laws and generally reflect the budgetary effects Legislative Changes reported in CBO’s cost estimates at the time the new The largest changes since June 2017 in CBO’s projec- laws were enacted; tions of the deficit—both for the current year and for the 2018–2027 period—stem from recently enacted legis- • Economic changes, which stem from the agency’s lation, most notably, the 2017 tax act. Other new laws updated economic forecast (and include the effects of with significant budgetary effects include the Bipartisan macroeconomic feedback associated with legislative Budget Act of 2018 (P.L. 115-­ 23) and the Consolidated 1 changes); and Appropriations Act, 2018 (P.L. 115-­ 41). (For a more 1 detailed discussion of the effects of the 2017 tax act, see • Technical changes, which are updates to projections Appendix B.) In total, legislative changes reduce pro- for reasons other than legislative or economic jected revenues over the 2018–2027 period by $1.7 tril- changes. lion (or 4 percent) and increase projected outlays by $1.0 trillion (or 2 percent). The increase in the projected deficit for 2018 stems primarily from laws enacted since the June baseline; Legislative Changes in Revenues As a result of legislative changes, CBO has reduced its 1. See Congressional Budget Office, An Update to the Budget and projections of revenues by $163 billion for 2018 and by Economic Outlook: 2017 to 2027 (June 2017), www.cbo.gov/ $1.7 trillion for the 2018–2027 period. Almost all of publication/52801. that decrease stems from the 2017 tax act. The revisions 94 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 Table A-1 . Changes in CBO’s Baseline Projections of the Deficit Since June 2017 Billions of Dollars Total 2018– 2018– 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2022 2027 Deficit in CBO's June 2017 Baseline -563 -689 -775 -879 -1,027 -1,057 -1,083 -1,225 -1,352 -1,463 -3,933 -10,112 Legislative Changes Changes in Revenues Individual income taxes -65 -162 -169 -166 -159 -148 -150 -151 -41 43 -722 -1,169 Corporate income taxes -94 -96 -80 -57 -32 -7 10 14 -9 -58 -359 -409 Payroll taxes * * * 1 3 6 8 7 6 6 3 36 Other -3 -27 -16 -17 -15 -14 -15 -16 -16 -9 -78 -148 Total Change in Revenues -163 -285 -265 -239 -203 -163 -148 -146 -60 -18 -1,156 -1,690 Changes in Outlays Mandatory outlays Medicaid 2 -4 -12 -21 -25 -27 -29 -31 -33 -34 -60 -213 Health insurance subsidies and related spending -1 -5 -11 -21 -25 -26 -27 -29 -30 -32 -62 -206 Refundable tax credits -11 13 13 12 12 13 12 11 25 -5 39 95 Children's Health Insurance Program 3 10 9 7 7 8 8 9 9 10 35 79 Other 17 9 6 6 6 5 9 10 -13 -28 43 27 Subtotal, mandatory 10 22 5 -17 -25 -28 -26 -30 -42 -89 -5 -219 Discretionary outlays Defense 40 56 13 -2 -8 -12 -15 -15 -16 -16 99 26 Nondefense 54 83 71 50 51 56 60 67 74 78 309 644 Subtotal, discretionary 94 139 84 47 44 44 46 52 58 62 408 669 Debt service 3 13 30 45 57 64 68 74 79 82 148 515 Total Change in Outlays 108 174 120 75 75 79 88 96 95 55 552 965 Increase in the Deficit From Legislative Changes -271 -459 -385 -315 -278 -243 -236 -241 -155 -74 -1,708 -2,656 Economic Changes Changes in Revenues Individual income taxes -16 28 69 71 61 48 45 49 55 58 213 468 Corporate income taxes 45 73 66 57 48 40 37 37 37 37 288 476 Payroll taxes -22 -8 7 13 12 14 14 18 21 24 2 92 Other -3 -4 -3 5 8 10 11 10 8 10 2 51 Total Change in Revenues 4 88 138 146 129 113 106 114 121 129 505 1,088 Changes in Outlays Mandatory outlays Social Security -3 -5 -5 -5 -5 -5 -5 -5 -6 -5 -22 -47 Unemployment compensation -2 -7 -10 -8 -3 -2 -1 -1 * * -30 -34 Medicare -1 -2 -3 -2 -2 -3 -3 -4 -5 -5 -11 -30 Other -2 -5 -6 -5 -4 -4 -3 -3 -3 -3 -23 -38 Subtotal, mandatory -8 -19 -24 -20 -14 -13 -12 -13 -13 -13 -86 -150 Discretionary outlays * 2 1 2 2 2 2 3 3 3 7 21 Net interest outlays Debt service * -1 -5 -9 -13 -15 -17 -20 -24 -29 -29 -134 Effect of rates and inflation 7 21 41 58 68 62 40 22 11 6 195 336 Subtotal, net interest 7 20 36 49 55 47 23 2 -13 -24 166 201 Total Change in Outlays -1 2 13 31 44 36 13 -8 -23 -33 88 73 Decrease in the Deficit From Economic Changes 5 86 125 116 85 77 92 121 144 163 417 1,015 Continued APPENDIX A: CHANGES IN CBO’S BASELINE PROJECTIONS SINCE JUNE 2017 The Budget and Economic Outlook: 2018 to 2028 95 Table A-1.Continued Changes in CBO’s Baseline Projections of the Deficit Since June 2017 Billions of Dollars Total 2018– 2018– 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2022 2027 Technical Changes Changes in Revenues Individual income taxes -3 45 * -41 -48 -55 -49 -51 -29 -10 -46 -241 Corporate income taxes -32 -45 -59 -56 -53 -40 -31 -20 -7 9 -244 -333 Payroll taxes 5 5 7 8 13 15 25 28 32 35 38 172 Other -5 -6 2 -2 -4 -4 -3 -4 -4 -4 -15 -33 Total Change in Revenues -35 * -49 -91 -92 -83 -59 -48 -8 30 -267 -435 Changes in Outlays Mandatory outlays Medicare -1 -6 -12 -16 -21 -21 -32 -30 -29 -19 -57 -186 Medicaid -28 -25 -22 -18 -13 -10 -7 -4 -3 -2 -106 -132 Health insurance subsidies and related spending -2 -5 -8 2 9 9 8 8 9 13 -3 44 Other 10 -6 -7 -4 * * * -2 -13 -3 -7 -27 Subtotal, mandatory -21 -43 -48 -35 -25 -23 -31 -28 -36 -11 -172 -301 Discretionary outlays -36 -34 -23 -7 -5 -4 -4 -4 -4 -4 -105 -125 Net interest outlays Debt service -2 -3 -4 -4 -3 -1 * 1 * -1 -16 -17 Other * -1 * -1 -4 -6 -6 -8 -10 -12 -6 -49 Subtotal, net interest -1 -4 -5 -5 -6 -7 -6 -8 -10 -14 -21 -65 Total Change in Outlays -59 -81 -76 -47 -36 -34 -41 -40 -50 -28 -299 -492 Increase (-) or Decrease in the Deficit From Technical Changes 24 81 26 -44 -56 -49 -17 -8 42 58 32 57 All Changes Increase (-) or Decrease in the Deficit -242 -292 -233 -243 -249 -215 -161 -128 31 147 -1,259 -1,584 Deficit in CBO's April 2018 Baseline -804 -981 -1,008 -1,123 -1,276 -1,273 -1,244 -1,352 -1,320 -1,316 -5,191 -11,696 Memorandum: Changes in Revenues -194 -197 -176 -185 -166 -134 -101 -80 54 141 -918 -1,037 Changes in Outlays 48 95 57 59 83 82 60 48 22 -6 341 547 Source: Congressional Budget Office. * = between -$500 million and $500 million. 96 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 to the baseline associated with that law—that is, the double the standard deduction, and increase the income changes CBO categorizes as legislative—reflect the levels at which the individual alternative minimum tax estimate of the revenue effects of the 2017 tax act that takes effect.5 Those changes are offset in part by provi- was produced by the staff of the Joint Committee on sions that raise revenues from individual income taxes, Taxation (JCT) on December 18, 2017.2 That estimate including a repeal of personal exemptions and modifica- indicates a revenue decrease of $1,647 billion over the tions to itemized deductions. 2018–2027 period.3 The estimate does not include the law’s estimated effects on the economy, nor does it reflect Corporate Income Taxes. CBO also reduced its projec- revisions that CBO has made to its baseline to incorpo- tion of corporate tax revenues—by $94 billion in 2018 rate more recent information about the budgetary effects and by $409 billion over the 2018–2027 period—to of the tax law. Those two sets of changes relating to the reflect legislative changes. Most of that reduction is 2017 tax act are included in the estimates described attributable to the 2017 tax act, which modified the below in the sections titled “Economic Changes” and corporate income tax system in many important ways. “Technical Changes.” That act set the tax rate at 21 percent (a change from the previous rate structure, which had a top rate of 35 per- CBO also revised its revenue baseline to incorporate the cent), temporarily allowed the immediate deduction of effects of P.L. 115-­ 20 and the Bipartisan Budget Act of 1 the cost of capital investments, limited or eliminated 2018, the two pieces of legislation with the next largest certain deductions, changed the way the United States effects on revenues after the 2017 tax act.4 P.L. 115-­ taxes the foreign income of U.S. corporations, instituted 120 delayed or suspended several health-­ elated taxes or r a onetime tax on previously untaxed foreign profits, and fees, reducing revenues by $29 billion over the 2018– reduced incentives to shift profits abroad, among other 2022 period and raising revenues by $4 billion over changes. the 2023–2027 period, for a net revenue reduction of $25 billion over the 2018–2027 period. The Bipartisan Other Revenues. In addition, the 2017 tax act modified Budget Act retroactively extended 33 tax provisions laws affecting estate and gift taxes, temporarily doubling (often called tax extenders) that had expired at the end the amount of the estate and gift tax exemption and of 2016, as well as a number of other tax-­ elated provi- r thereby reducing the projection of revenues from those sions, through 2017. Those changes reduced revenues sources by $1 billion in 2018 and by $75 billion over by $15 billion over the 2018–2020 period and increased the 2018–2027 period. Legislative changes led CBO to revenues by $6 billion over the 2021–2027 period, for a reduce its projection of revenues from excise taxes by net reduction of $9 billion over the 2018–2027 period. $4 billion in 2018 and by $24 billion over the 2018– 2027 period. Those reductions stem primarily from Individual Income Taxes. Most of the legislative changes provisions of P.L. 115-­ 20 that extended a moratorium 1 to CBO’s projections of revenues come from changes to on the medical device excise tax, delayed the implemen- individual income taxes. CBO reduced its projection of tation of the excise tax on high-­ ost employment-­ ased c b revenues from those taxes by $65 billion for 2018 and health insurance coverage, and suspended an annual fee by $1.2 trillion for the 2018–2027 period. Most of that imposed on health insurance providers. reduction stems from provisions of the 2017 tax act that temporarily reduce individual income tax rates, nearly Legislative Changes in Outlays Since June, CBO has boosted its estimate of outlays 2. See Joint Committee on Taxation, Estimated Budget Effects of in 2018 by $108 billion—primarily for discretionary the Conference Agreement for H.R.1, the “Tax Cuts and Jobs Act,” spending—as a result of recently enacted legislation. The JCX-­67-­17 (December 2017), https://go.usa.gov/xQcZu. agency has also increased projected outlays for the 2018– 3. The revenue decrease was estimated to be partially offset by a 2027 period by $1.0 trillion (or 2 percent), mainly as a $193 billion net reduction in outlays that stemmed mostly from the elimination, beginning in 2019, of the penalty for not having 5. The alternative minimum tax is similar to the regular income health insurance, also known as the individual mandate. tax, but its calculation includes fewer exemptions, deductions, 4. P.L. 115-­ 20 is a law making further continuing appropriations 1 and rates. People who file individual income tax returns must for the fiscal year ending September 30, 2018, and for other calculate the tax owed under each system and pay the larger of purposes. the two amounts. APPENDIX A: CHANGES IN CBO’S BASELINE PROJECTIONS SINCE JUNE 2017 The Budget and Economic Outlook: 2018 to 2028 97 result of increased spending for nondefense discretionary in funding, provided by multiple laws, for five types of programs and higher costs for debt service because of the activities that are not constrained by the caps. In total, increases in deficits that would stem from new laws. funding not constrained by the caps in 2018 amounts to $197 billion—$76 billion more than projected in Discretionary Outlays. Changes to discretionary pro- June. Most of that sum is extrapolated over the entire grams from legislation enacted since June led CBO to projection period because, as specified by law, funding raise its projection of outlays by $94 billion for 2018 and for activities designated as emergency requirements or by a cumulative total of $669 billion for 2018 through overseas contingency operations (OCO)—which totals 2027.6 Over that 10-­ ear period, CBO’s projections of y $186 billion this year—is assumed to grow with infla- nondefense and defense outlays are $644 billion and tion.8 Funding for the other three activities—certain $26 billion higher, respectively, for legislative reasons. efforts to reduce overpayments in benefit programs, programs designated by the 21st Century Cures Act A significant portion of the increases in the near term (P.L. 114-­ 55), and disaster relief—is projected in CBO’s 2 stems from the Consolidated Appropriations Act, baseline subject to certain statutory constraints. 2018, which provided appropriations for 2018 for activities constrained by caps on discretionary fund- The $76 billion increase since June in discretionary ing; those appropriations exceed, by $160 billion, the funding for 2018 not limited by the caps results from the funding projected in CBO’s June baseline.7 In addi- following changes: tion, the Bipartisan Budget Act specified new caps for 2019 that exceed the previous caps for that year by a • An additional $98 billion in supplemental total of $152 billion. As a result of those two changes, appropriations for nondefense activities designated CBO’s projections over the 2018–2027 period include as emergency requirements (related to the hurricanes an increase of $306 billion in defense and nondefense and wildfires that occurred in 2017); that increased discretionary outlays from funding that is constrained by funding was provided by two laws—the Additional the caps. Those projections incorporate the assumptions Supplemental Appropriations for Disaster Relief that funding will be in line with the higher caps set for Requirements Act, 2017 (P.L. 115-­ 2), and 7 2019, will then (consistent with CBO’s June projec- Subdivision 1 of Division B of the Bipartisan Budget tions) return to the significantly lower limits previously Act of 2018.9 That $98 billion is the difference set for 2020 and 2021 by the Budget Control Act (as between the enacted amount, for 2018, of nondefense amended), and will grow with inflation thereafter. funding designated as an emergency requirement ($102 billion) and the amount of such funding In addition, CBO’s projections of discretionary outlays over the 2018–2027 period are $364 billion higher than they were in June 2017 because of net increases 8. Overseas contingency operations refer to certain military and diplomatic activities in Afghanistan and elsewhere, but 6. Discretionary spending is controlled by annual appropriation acts historically, some funding designated by the Congress for OCO that specify the amounts that are to be provided for a broad array has not been directly related to those activities. Funding that is of government activities, such as defense, law enforcement, and categorized as an emergency requirement is designated in statute transportation. pursuant to section 251(b)(2)(A)(i) of the Balanced Budget and Emergency Deficit Control Act of 1985 (P.L. 99-­ 77). 1 7. Caps on discretionary appropriations were originally set by the Budget Control Act of 2011 (P.L. 112-­ 5), as amended. 2 9. The Additional Supplemental Appropriations for Disaster Relief The Bipartisan Budget Act of 2018 increased the caps on Requirements Act, 2017, also included changes to mandatory discretionary funding in 2018 by a total of $143 billion. The programs that, by CBO’s estimate, increase mandatory Consolidated Appropriations Act, 2018, provided even more budget authority for 2018 by $18 billion. The largest of those funding because it included provisions that were estimated to changes was the cancellation of $16 billion of the debt owed reduce net funding for mandatory programs by $17 billion. Those to the Treasury by the National Flood Insurance Fund, which savings were credited against the discretionary funding provided effectively increased the amount of funding available to the by that act in judging whether the total amount of new budget Federal Emergency Management Agency for the National Flood authority adhered to the caps specified for 2018, thus allowing Insurance Program. CBO’s estimates of legislative changes discretionary funding in 2018 to exceed the statutory limit for to mandatory outlays reflect the incremental effects of those that year by $17 billion. provisions. 98 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 projected for 2018 in CBO’s June 2017 baseline Medicaid than would otherwise have been the case. For ($4 billion).10 example, some people applied for coverage in the mar- ketplaces as a result of the penalty and turned out to be • An additional $6 billion in defense funding that eligible for Medicaid, and some Medicaid-­ ligible adults e was designated as an emergency requirement; that and children would have had to pay a penalty if they sum was provided by two laws—the Department of did not obtain insurance. As a result, CBO expects that Defense Missile Defeat and Defense Enhancements fewer people will enroll in Medicaid when the penalty is Appropriations Act, 2018 (Division B of P.L. 115-­ eliminated, beginning in 2019. 96), and Subdivision 1 of Division B of the Bipartisan Budget Act of 2018. In addition, the extension of funding for the Children’s Health Insurance Program (CHIP) from 2018 through • A $28 billion reduction in funding for OCO 2027 is estimated to generate savings to Medicaid ($19 billion less for defense and $9 billion less for because CBO had expected that, in the absence of nondefense) under the Consolidated Appropriations extended funding for CHIP, states would switch some Act, 2018. children who had been enrolled in CHIP to Medicaid. Mandatory Outlays. CBO reduced its estimates of Health Insurance Subsidies and Related Spending. CBO mandatory outlays by $219 billion (0.6 percent) for the reduced projected outlays for health insurance subsidies 2018–2027 period because of legislation enacted since and related spending by $206 billion (or 23 percent) June 2017.11 The largest reduction for the 10-­ ear period y for the 2018–2027 period as a result of recently enacted was attributable to a provision of the 2017 tax act that legislation. The elimination of the penalty related to eliminated the penalty related to the individual health the individual health insurance mandate accounts for insurance mandate, beginning in 2019. CBO and JCT most of the net reduction in outlays. As a consequence estimated that enacting that provision would reduce out- of that elimination, fewer people are expected to enroll lays by $297 billion over the 2018–2027 period because in coverage through the marketplaces established under fewer people would enroll in health insurance subsidized the ACA—which will reduce subsidies provided by the by the federal government when there was no penalty for federal government for that coverage—because some not having insurance.12 people would have chosen to be covered by insurance to avoid paying the penalty and because some people are Medicaid. CBO estimated that recently enacted legis- expected to forgo insurance in response to the resulting lation would reduce projected outlays for Medicaid by higher premiums. $213 billion (4 percent) over the 2018–2027 period. The repeal of the individual mandate penalty established The remaining decline in outlays attributable to legisla- under the Affordable Care Act (ACA) was responsible for tive changes mostly results from the extension of CHIP most of that reduction by lowering projected enrollment funding from 2018 through 2027. Because some people in Medicaid. In CBO’s estimation, the penalty for not who will gain coverage through CHIP would otherwise having insurance encouraged more people to enroll in have received subsidies for coverage purchased through the marketplaces, the extension of CHIP reduces such 10. The June 2017 projection did not reflect the $15 billion in outlays. supplemental nondefense funding designated as an emergency requirement that was provided late in 2017. As a result, CBO’s Refundable Tax Credits. The 2017 tax act had a number current estimate of legislative increases to outlays is larger than of effects on outlays for the refundable portion of certain it would be if that 2017 funding had been taken into account in projecting 2018 spending. tax credits, specifically the earned income tax credit, the child tax credit, and the American Opportunity Tax 11. Mandatory spending is governed by statutory criteria and is not Credit. The largest of those effects stems from a tempo- normally controlled by the annual appropriation process. rary expansion of the child tax credit: On its own, that 12. All told, the agencies estimated that repealing the penalty would provision would increase outlays by $181 billion over the reduce federal budget deficits by $314 billion between 2018 and 2018–2027 period, according to estimates by JCT. In 2027. That sum is composed of estimated reductions in outlays of $297 billion and increases in revenues of $17 billion over that addition, the increased standard deduction and lower tax period. brackets enacted by the new law will increase refundable APPENDIX A: CHANGES IN CBO’S BASELINE PROJECTIONS SINCE JUNE 2017 The Budget and Economic Outlook: 2018 to 2028 99 outlays for all three tax credits by tending to reduce indi- Economic Changes viduals’ tax liabilities. CBO’s current budget projections reflect updates to economic measures since the June 2017 baseline was However, those effects are offset by reductions in outlays completed and incorporate the macroeconomic effects stemming from other provisions of the new law, most of recently enacted legislation. The current economic notably the repeal of deductions for personal exemptions forecast updates the agency’s projections of gross domes- (which increases tax liabilities) and the use of an alter- tic product (GDP), income, the unemployment rate, native inflation measure (which affects the phase-­n and i interest rates, inflation, and other factors that affect fed- phaseout ranges and maximum credit amounts for the eral spending and revenues. In total, compared with the earned income tax credit and the child tax credit). All June 2017 baseline projections, the updated economic told, the 2017 tax act will increase outlays for refundable forecast led the agency to decrease its estimate of the tax credits by $95 billion over the 2018–2027 period, deficit by $5 billion for 2018 and by $1.0 trillion for the according to estimates by JCT.13 2018–2027 period. The largest factor in the cumulative 10-­ ear change is an increase in projected revenues, offset y Children’s Health Insurance Program. The 2017 tax act by a small increase in projected outlays. About half of the and the Bipartisan Budget Act of 2018 extended funding economic changes stem from the macroeconomic effects for CHIP from 2018 through 2027. Before enactment of the 2017 tax act (see Appendix B). of those laws, funding for CHIP was to have expired at the end of 2017. The reauthorization increased CBO’s Economic Changes in Revenues projection of outlays for CHIP by $79 billion over the Revisions to CBO’s economic forecast caused the agency 2018–2027 period.14 to increase its projections of revenues by $4 billion for 2018 and by $1.1 trillion for the 2018–2027 period. Other Mandatory Programs. Smaller legislative changes— More than half of those changes were driven by the both increases and decreases—in CBO’s estimates for macroeconomic effects of recently enacted legislation— a number of other programs led CBO to increase its specifically, the 2017 tax act, the Bipartisan Budget Act projections of mandatory outlays by $27 billion, on net, of 2018, and P.L. 115-­ 20. Updated data for key mea- 1 over the 2018–2027 period. sures from the national income and product accounts (NIPAs) also led to economic revisions. (The NIPAs, Debt Service. Excluding the cost of debt service, the which are produced by the Bureau of Economic Analysis, changes that CBO made to its projections of revenues track components of the nation’s economic output and and outlays because of legislation enacted since June income that CBO uses in its economic analyses.) increased the agency’s projection of the cumulative defi- cit for the 2018–2027 period by $2.1 trillion. The result- Corporate Income Taxes. The largest differences in ing growth in the estimate of federal borrowing led CBO the revenue projections that arise from changes in the to raise its cumulative projection of outlays for interest economic forecast concern corporate income tax receipts. on federal debt by $515 billion for the 10-­ ear period. y Those changes boosted CBO’s projections of corporate income tax receipts by $476 billion (or about 12 percent) over the 2018–2027 period. That increase is attributable to updated projections of domestic economic profits, 13. In addition, the Disaster Tax Relief and Airport and Airway which are now anticipated to be 13 percent higher over Extension Act of 2017 (P.L. 115-­ 3) and the Bipartisan Budget 6 the coming decade than CBO forecast previously. Act of 2018 provided relief for some taxpayers affected by Hurricanes Harvey, Irma, and Maria and by the California Individual Income Taxes. Changes in the economic wildfires. According to estimates by JCT, enactment of those two forecast since CBO’s June 2017 baseline led the agency laws will increase outlays for refundable tax credits by $0.2 billion over the 2018–2027 period. to reduce its projection of revenues from individual income taxes by $16 billion for 2018 but to increase the 14. Following the rules that underlie the construction of CBO’s projection for each subsequent year, for a net increase baseline, prior to the enactment of the two new laws, CHIP was assumed to continue in CBO’s baseline through 2027 with from economic factors of $468 billion (or 2 percent) funding of $5.7 billion a year. over the 2018–2027 period. The decline for 2018 stems 100 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 from a downward revision to estimates of wages and outlays for Social Security over the 2018–2027 period by salaries in that year. The increase for subsequent years $47 billion (or 0.4 percent). primarily results from an increase in projections of wages and salaries and proprietors’ income; that upward revi- Unemployment Compensation. Economic factors, primar- sion to income growth stems in part from the estimated ily changes to the unemployment rate, reduced projected macroeconomic effects of recent legislation. CBO also outlays for unemployment compensation by $34 billion increased its projection of receipts from capital gains over the 2018–2027 period. CBO revised its forecast realizations over the 2018–2027 period because of an of the unemployment rate downward by an average of upward revision to projections of equity prices that 1.0 percentage point per year for 2019 through 2021 resulted, in part, from stronger-than-expected gains in and by an average of about 0.2 percentage points per the stock market during the second half of 2017. year for 2022 through 2027. Other Revenues. Revisions to the forecast for wages and Medicare. Under current law, payment rates for much salaries—downward in 2018 and upward thereafter—led of Medicare’s fee-­ or-­ ervice sector (such as hospital f s CBO to make similar changes to its projections of reve- care and services provided by home health agencies and nues from payroll taxes. For economic reasons, they were skilled nursing facilities) are updated automatically. reduced by $22 billion for 2018 and by $8 billion for Those updates are tied to changes in the prices of the 2019 but were increased by $92 billion for the 2018– labor, goods, and services that health care providers 2027 period. In addition, the stronger-than-expected purchase, coupled with an adjustment for economywide growth in stock market prices led CBO to increase its gains in productivity (the ability to produce the same projections of revenues from estate and gift taxes over the output using fewer inputs, such as hours of labor) over 2018–2027 period (by $22 billion, or 8 percent). a 10-­ ear period. CBO now anticipates slightly smaller y updates in the near term than it did in June—a change Economic factors also led CBO to revise its 10-year pro- that decreases Medicare outlays in CBO’s baseline jections of customs duties (by $14 billion, or 3 percent) projections for the 2018–2027 period by $30 billion (or and of receipts from other sources (by $15 billion). The 0.4 percent). increases in projected revenues from those sources reflect the effects of more imports and faster GDP growth, Other Mandatory Programs. As a result of CBO’s revised among other factors. economic forecast, the agency updated its projections for a number of other mandatory programs; in total, those Economic Changes in Outlays changes reduced projected outlays by $38 billion over As a result of the updated economic forecast, CBO the 2018–2027 period, the net result of both upward lowered its estimate of outlays for the current year by and downward adjustments to estimates. The largest $1 billion. For the 2018–2027 period, economic updates reductions include those for the Supplemental Nutrition led CBO to increase its projection of outlays by $73 bil- Assistance Program ($16 billion, mostly because of lower lion (or 0.1 percent) because of changes that largely projections of food prices), the refundable portion of offset one another: Specifically, a decrease in mandatory certain tax credits ($14 billion, largely because of higher outlays ($150 billion) was more than offset by increases projections of wages, since higher wages tend to decrease in discretionary spending ($21 billion) and net interest outlays for those credits), and Medicaid ($6 billion, costs ($201 billion). mainly because of lower projections of unemployment). In the other direction, higher projections for interest Mandatory Outlays. CBO decreased its projections rates in the near term increased the projected subsidy of mandatory spending by $8 billion for 2018 and by costs for student loans by $7 billion. Smaller adjustments $150 billion for the 2018–2027 period for economic for other mandatory programs further reduced projected reasons. The largest economic changes to mandatory outlays by $10 billion, on net, over the 10-­ ear period. y spending involved CBO’s projections for Social Security, unemployment compensation, and Medicare. Discretionary Outlays. Changes to projections for the measures of inflation that CBO is required to use in Social Security. Primarily because of lower projections of developing its baseline drive the economic changes for average wages through 2020, CBO reduced projected discretionary spending. In CBO’s baseline, discretionary APPENDIX A: CHANGES IN CBO’S BASELINE PROJECTIONS SINCE JUNE 2017 The Budget and Economic Outlook: 2018 to 2028 101 funding related to federal personnel is inflated using Technical Changes in Revenues the employment cost index for wages and salaries; Overall, CBO reduced its revenue projections by most other discretionary funding is adjusted using the $435 billion (or 1 percent) for the 2018–2027 period to GDP price index. Changes to CBO’s economic forecast incorporate various technical adjustments. Many of those increased discretionary outlays in the baseline by $21 bil- adjustments reflect information that has become avail- lion over the 2018–2027 period. able in recent months about the 2017 tax act. For exam- ple, CBO reduced its projections of 2018 individual Net Interest. Since June, CBO has revised its projections income tax receipts in light of new withholding tables of net interest costs because of changes in the agency’s that the Internal Revenue Service issued in January. forecasts for interest rates and inflation.15 It also has CBO has also made technical changes that adjusted its made new projections of government borrowing (debt projections of the timing of tax liabilities and payments service) as a result of economic changes to projected in light of the 2017 tax act. deficits. Together, those revisions led CBO to increase its baseline projection of net interest spending by $201 bil- Corporate Income Taxes. The biggest technical revi- lion for the 2018–2027 period for economic reasons. sions to projected revenues affect corporate income taxes. On net, CBO’s technical revisions reduce pro- CBO has increased its projections of rates on Treasury jections of those revenues by $333 billion over the securities relative to those underlying the June 2017 2018–2027 period. baseline. Both short-­and long-­ erm interest rates are t projected to be higher through 2023—by roughly The largest of those technical changes include updates to 0.7 percentage points and 0.4 percentage points, on the way changes made by the 2017 tax act are projected average, respectively—than CBO projected in June. to affect tax liabilities. In particular, CBO made adjust- Primarily as a result of the higher rates, CBO increased ments to account for the interactions among several its projection of net interest outlays by $336 billion over provisions to better reflect how they relate in an envi- the 2018–2027 period. ronment of stronger economic growth. Those provisions include modifications of the deductions from income for In the opposite direction, CBO reduced its projection of the costs of capital investments, interest costs, and net net interest outlays by $134 billion over that period to operating losses. CBO also updated its projection for the account for debt-­ ervice effects. That reduction reflects s portion of net income that is received by corporations the net effect of updates to projections of revenues and with taxable income (versus those with net losses). On outlays that are attributable to CBO’s economic forecast, net, those adjustments result in lower projected receipts which led the agency to lower its projection of the total over the next decade, in part because CBO expects deficit for the 2018–2027 period by $880 billion (not businesses to claim more deductions from income during including the effects of debt service). that period. (Some of those larger deductions would be offset by correspondingly lower deductions in future Technical Changes years.) Technical changes—that is, revisions other than the legislative and economic changes discussed above—also CBO made another technical change to corporate tax affect CBO’s baseline projections for revenues and receipts to account for the fact that collections from that outlays. Such changes caused CBO to reduce its estimate source were lower in 2017 than CBO had projected, of the 2018 deficit by $24 billion and its estimate of the even though corporate profits were larger than expected. deficit over the 2018–2027 period by $57 billion. That Consequently, in 2017, the average tax rate on corporate 10-­ ear change results from partially offsetting changes y income—taxes as a percentage of income—was lower in revenues and outlays. than previously projected, leading CBO to reduce its projections of the average corporate tax rate and revenues over the 2018–2022 period. 15. To account for inflation, the Treasury Department adjusts Altogether, technical revisions resulted in reductions to the principal of its inflation-­ rotected securities each month p using the consumer price index for all urban consumers; those projected corporate tax receipts in each year through adjustments are recorded as interest outlays. 2026. By 2027, upward technical adjustments—in 102 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 particular, the update to estimates of the portion of net individual retirement accounts and defined contribution income received by corporations with taxable income— pension plans. Those rates have declined since 2012, and outweigh the other factors to produce an upward techni- CBO now expects them to remain low throughout the cal adjustment of $9 billion for that year. projection period instead of reverting to 2012 levels. In combination, those two sources of downward technical Individual Income Taxes. CBO also revised its pro- adjustments dominate the other technical changes, jection for individual income taxes for technical rea- beginning in 2021. sons, reducing receipts from that source by $3 billion in 2018, increasing receipts by $46 billion over the Payroll Taxes. As a result of technical revisions, CBO has 2019–2020 period, and reducing receipts by $284 bil- raised its projections of payroll tax revenues by $172 bil- lion over the 2021–2027 period, for a net reduction of lion over the 2018–2027 period. With a smaller share of $241 billion over the 2018–2027 period. That pattern wages and salaries being received by high earners, a larger is the result of a number of offsetting technical changes, share will be received by people whose annual earn- with upward revisions dominating in the near term and ings are below the maximum amount subject to Social downward revisions dominating in later years. Security payroll taxes (currently $128,400). The positive effect on payroll tax receipts is about 75 percent as large One factor boosting receipts over the next several years is as the resulting negative effect on individual income tax that CBO no longer expects the previously unexplained receipts. weakness in individual income tax receipts to persist for several years before dissipating. Recent revisions to his- Other Revenues. In addition, technical revisions torical economic data, primarily for wages and salaries, led CBO to reduce its projection of revenues from have led CBO to revise projections to be more in line other sources by $33 billion, on net, over the 2018– with a longer-­ erm historical relationship. t 2027 period. Most of that change reflects a smaller expected amount of penalties that would be collected In its projections, CBO also adjusted the speed at which from employers that do not offer health insurance to taxes withheld from workers’ paychecks are expected to their employees. Partially offsetting that reduction are be reduced as a result of the 2017 tax act. The Internal technical changes that CBO made to increase its pro- Revenue Service issued new withholding tables in jection for excise taxes over the 2018–2027 period as January, sooner than was anticipated when the law was a result of larger-than-projected receipts in 2017 from enacted. As a result, CBO now expects tax withholding gasoline and diesel taxes, as well as from certain aviation to be lower during fiscal year 2018; that effect will be taxes. The strength in those sources of excise tax receipts offset by higher tax payments (or smaller refunds) when is expected to continue. taxpayers file their tax returns next spring, in fiscal year 2019. Technical Changes in Outlays Largely because of technical updates to spending esti- Other technical changes decreased CBO’s projection mates for various discretionary programs, CBO low- of individual income tax receipts over the 2018– ered its estimate of outlays in 2018 by $59 billion. For 2027 period. CBO updated its modeling to adjust the the 2018–2027 period, projected outlays are lower by share of total wages and salaries received by high earn- $492 billion for technical reasons, mostly because of ers. Data for recent years show smaller-than-expected reductions in estimates of mandatory spending. increases in the share of wages and salaries received by high earners. In response, CBO made a downward Discretionary Outlays. CBO’s estimates of discretionary revision to projected increases in that share over the next outlays in 2018 are $36 billion lower because of tech- decade. That change reduced CBO’s projections of indi- nical updates. The delayed enactment of 2018 appro- vidual income tax revenues because people with lower priations, more than five months after the beginning income are subject to lower income tax rates. of the fiscal year, accounts for much of that near-­ erm t reduction. Projected outlays over the 2018–2027 period Another technical change decreasing individual income are also lower, by $125 billion (or 1 percent), reflecting tax receipts over the 2018–2027 period comes from a general expectation that agencies are likely to obligate CBO’s altered expectation about withdrawal rates from and spend increased funding for 2018 and 2019 at APPENDIX A: CHANGES IN CBO’S BASELINE PROJECTIONS SINCE JUNE 2017 The Budget and Economic Outlook: 2018 to 2028 103 slower rates than those reflected in CBO’s June 2017 estimates are preliminary, and CBO will provide further baseline. details about them and their implications for future cost estimates in an upcoming report. Mandatory Outlays. Technical changes have reduced the amount of mandatory spending estimated for the current Other Mandatory Programs. Technical updates led CBO year by $21 billion. For the 2018–2027 period, such to increase its projections of outlays for other mandatory revisions have decreased the total projection of manda- programs by $10 billion for 2018 but to reduce those tory outlays by $301 billion (or 1 percent). projections by $27 billion for the 10-­ ear period. y Medicare. Technical revisions caused CBO to decrease its The largest changes for 2018 include increases in pro- projection of Medicare outlays by $186 billion (or 2 per- jected outlays for the refundable portion of the earned cent) over the 2018–2027 period, mostly because spend- income and child tax credits ($11 billion) and for ing for the fastest-growing components of Medicare was the National Flood Insurance Program ($5 billion). lower last year than CBO anticipated in its June baseline. Projected outlays for the refundable tax credits were The main factors responsible for the reduction are lower revised upward to reflect changed expectations about projections of spending for Part D (prescription drugs) when those refunds will be paid; that increase is offset and higher projections of offsetting receipts (premiums by reductions in later years of the projection period. paid by beneficiaries). Actual spending in 2017 for Part The increase in projected outlays for flood insurance D was lower than CBO projected in June; in response, stems from a larger number of claims, as a result of the CBO revised downward its projections of spending for three major hurricanes that affected the United States the next decade. In addition, CBO increased its esti- in August 2017. Because those storms occurred near the mates of premium income so that reserve balances in the end of the fiscal year, much of the related spending will Medicare trust funds are projected to match the histori- be recorded in 2018. Smaller adjustments to projections cal target of about two months’ worth of spending. for other mandatory programs, on net, decreased esti- mated outlays in 2018 by about $6 billion. Medicaid. CBO reduced its 10-­ ear projection of spend- y ing for Medicaid by $132 billion (or 3 percent) because The largest of the changes for the 2018–2027 period of technical revisions since June 2017. That reduction was a $32 billion increase in projections of offsetting stems largely from lower-than-anticipated per capita receipts (negative outlays) for certain payments related to costs in 2017 for people made eligible for Medicaid military retirement. (Such receipts are intragovernmen- under the ACA and lower projections of cost growth for tal and have no net effect on the deficit.) In the other those enrollees. direction, CBO boosted its projections of outlays for Social Security by $19 billion (or 0.1 percent) because Health Insurance Subsidies and Related Spending. of updated data on benefit amounts and caseloads. CBO Technical revisions caused estimates of spending for sub- also increased projected outlays for student loans by sidies for coverage purchased through the marketplaces $10 billion (or 23 percent), mainly because of a larger established under the ACA and related spending to be number of projected defaults and decreased collections $44 billion higher, on net, over the 2018–2027 period on those defaulted loans, in addition to higher costs than in CBO’s June baseline. A significant factor con- for loans made to borrowers who enroll in an income-­ tributing to the increase is that the current baseline driven repayment plan. On net, smaller adjustments projections reflect that the entitlement for subsidies for that encompass a number of other mandatory programs cost-sharing reductions (CSRs) is being funded through further reduced projected outlays by $25 billion. higher premiums and larger premium tax credit subsi- dies rather than through a direct appropriation.16 Those 16. The ACA requires insurers to offer CSRs to eligible people who purchase silver plans through the marketplaces and requires the constructing the baseline, requires CBO to assume full funding federal government to reimburse insurers for those costs. CSRs of such entitlement authority. In its June 2017 baseline, CBO take the form of reduced deductibles, copayments, and other assumed that CSRs would continue to be funded via a direct means of cost sharing. Section 257 of the Balanced Budget and appropriation. The Administration subsequently stopped making Emergency Deficit Control Act of 1985, which specifies rules for the reimbursement payments in October 2017. 104 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 Net Interest. Technical changes led CBO to decrease its will be Treasury notes (which have maturities of 2 to projections of net interest outlays by $1 billion for 2018 10 years). Those changes reduce outlays in the baseline and by $65 billion for the 2018–2027 period. because interest rates on short-­ erm securities are pro- t jected to be lower than those on longer-­ erm securities. t Most of that reduction, $49 billion over the 2018– 2027 period, arises from changes in CBO’s approach to In all, technical changes to CBO’s baseline for revenues estimating net interest outlays—mainly changes in the and outlays have slightly reduced projected deficits. mix of securities that the Treasury is expected to issue to That decrease, combined with reductions in estimates of finance future deficits. Consistent with recent announce- borrowing to finance the government’s credit programs, ments by the Treasury about its plans for funding, CBO results in projected debt-­ ervice costs that subtract s has increased estimates of the share of those securities another $17 billion from net interest outlays in CBO’s that will be Treasury bills (which have maturities of less baseline over the 2018–2027 period. than 1 year) and decreased estimates of the share that APPENDI X B Appendix B The Effects of the 2017 Tax Act on CBO’s Economic and Budget Projections Overview boosts average annual real GDP by 0.7 percent over the In December 2017, Public Law 115-97, referred to here 2018–2028 period. Analysis of the act’s economic effects as the 2017 tax act, was enacted. The act made import- is complicated by its mix of permanent and temporary ant changes to the tax system that apply to both busi- provisions; of particular note is that it lowers the corpo- nesses and individuals. Consequently, the Congressional rate income tax rate permanently but individual income Budget Office had to estimate its effects when preparing tax rates only through 2025. As a result, the projected its new baseline projections, which incorporate the economic effects vary over the 11-year period; the largest assumption that current laws affecting taxes and spend- effects on the economy occur during the period’s middle ing generally do not change. In those projections for the years. 2018–2028 period, the act’s changes boost economic output and increase budget deficits, on net. CBO’s projections of the act’s economic effects are based partly on projections of the act’s effects on potential What Are the Act’s Major Provisions? GDP—the economy’s maximum sustainable level of The 2017 tax act changes corporate and individual tax production. In the agency’s projections, the act increases rates and includes various provisions that affect how the level of potential GDP by boosting investment and businesses and individuals calculate their taxable income. labor. By lowering the corporate income tax rate, the act Among other things, the act lowers the top corporate gives businesses incentives to increase investment, and income tax rate to 21 percent. It changes the way that by lowering individual income tax rates through 2025, the foreign income of U.S. corporations is taxed, and it it gives people incentives to increase their participation reduces some incentives for corporations to shift profits in the labor force and their hours worked, expanding the outside the United States. For the next eight years, the potential labor supply and employment. Other provi- act lowers individual income tax rates and broadens the sions of the tax act, including a limit on deductions for total amount of income subject to that tax. Also for the state and local taxes and for mortgage interest, will push next eight years, it increases the tax exemptions for prop- down residential investment, but the overall effect on erty transferred at death and for certain gifts. Starting investment is positive. One result of the act will dampen next year, it eliminates the penalty for not having health those positive effects on potential output: It will increase insurance—a penalty imposed under a provision of the federal deficits and therefore increase federal borrowing Affordable Care Act generally called the individual man- and interest rates, crowding out some private investment. date. And it changes the measure of inflation that is used to adjust certain tax parameters. In CBO’s projections, the act initially boosts real GDP (that is, GDP adjusted to remove the effects of infla- What Are the Act’s Projected Economic Effects? tion) in relation to real potential GDP, influencing other In CBO’s assessment, the 2017 tax act changes busi- economic variables, such as inflation and interest rates. nesses’ and individuals’ incentives in various ways. On GDP is pushed up in relation to potential GDP because net, those changes are expected to encourage saving, the act increases overall demand for goods and services investment, and work. (by raising households’ and businesses’ after-tax income). The heightened economic activity subsequently generates CBO projects that the act’s effects on the U.S. economy more demand for labor and consequently higher wages. over the 2018–2028 period will include higher levels In response, the labor force participation rate (which is of investment, employment, and gross domestic prod- the percentage of people in the civilian noninstitutional- uct (GDP). For example, in CBO’s projections, the act ized population who are at least 16 years old and either 106 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 working or seeking work) rises, as do the number of effects on debt-service costs of the smaller debt. On net, hours worked, and the unemployment rate goes down. economic feedback from the act raises debt-service costs The largest positive effects occur during the 2018– in CBO’s projections by about $100 billion. 2023 period. After income tax rates rise as scheduled at the close of 2025, the growth of overall demand is damp- What Uncertainty Surrounds CBO’s Estimates? ened in relation to the growth of potential output. CBO’s estimates of the economic and budgetary effects of the 2017 tax act are subject to a good deal of uncer- Among the effects of the initially stronger output growth tainty. The agency is uncertain about various issues—for are slightly higher inflation and an increase in the example, the way the act will be implemented by the exchange value of the dollar. Furthermore, CBO expects Treasury; how households and businesses will rearrange the Federal Reserve to respond to the stronger labor their finances in the face of the act; and how households, market and increases in inflationary pressure by pushing businesses, and foreign investors will respond to changes short-term interest rates higher over the next few years. in incentives to work, save, and invest in the United Long-term interest rates are also expected to rise. States. That uncertainty implies that the actual outcomes may differ substantially from the projected ones. Just as the tax act is projected to boost real GDP, it is expected to increase income for labor and business The Major Provisions of the Act over the 2018–2028 period. The act will also affect The 2017 tax act makes important changes to the tax sys- the relationship between GDP and gross national tem that apply to both businesses and individuals. They product (GNP). GNP differs from GDP by includ- include changes to corporate and individual tax rates ing the income that U.S. residents earn from abroad and a variety of provisions that affect how businesses and and excluding the income that nonresidents earn from individuals calculate their taxable income. The changes domestic sources; it is therefore a better measure of have important effects on incentives to save, invest, and the income available to U.S. residents. Because the act work. reduces the amount of net foreign income earned by U.S. residents in CBO’s projections, it increases GNP Together, CBO estimates, the act’s provisions reduce, less than it increases GDP. on net, the user cost of capital, which is the gross pretax return on investment that provides the required What Are the Act’s Projected Budgetary Effects? return to investors after covering taxes and depreci- To construct its baseline budget projections, CBO incor- ation. That required return can be thought of as the porated the effects of the tax act, taking into account return that investors would have received if they had economic feedback—that is, the ways in which the act used their funds to make another, equally risky invest- is likely to affect the economy and in turn affect the ment. Therefore, all things being equal, as the user budget. Doing so raised the 11-year projection of the cost of capital falls, investment rises, and vice versa. In cumulative primary deficit (that is, the deficit excluding addition, the smaller user cost of capital implies lower the costs of servicing the debt) by $1.3 trillion and raised effective marginal tax rates on capital income.1 By CBO’s projected debt-service costs by roughly $600 billion. The act therefore increases the total projected deficit over the 1. The effective marginal tax rate on capital income is the share of 2018–2028 period by about $1.9 trillion. the return on an additional investment made in a particular year that will be paid in taxes over the life of that investment. Unlike statutory tax rates, effective marginal tax rates account for the Before taking economic feedback into account, CBO tax treatment of depreciation and various other features of the estimated that the tax act would increase the primary tax code. For descriptions of CBO’s method of estimating the deficit by $1.8 trillion and debt-service costs by roughly effective marginal tax rate on capital income, see Congressional $450 billion. The feedback is estimated to lower the Budget Office, Taxing Capital Income: Effective Marginal Tax cumulative primary deficit by about $550 billion, mostly Rates Under 2014 Law and Selected Policy Options (December because the act is projected to increase taxable income 2014), Appendix A, www.cbo.gov/publication/49817, and Computing Effective Tax Rates on Capital Income (December and thus push tax revenues up. And that feedback raises 2006), www.cbo.gov/publication/18259. For a description of projected debt-service costs, because even though the the relationship between the effective marginal tax rate and the reduction in primary deficits means that less borrowing user cost of capital, see page 30 of the December 2014 report, is necessary, the act is expected to result in higher interest in which the user cost of capital is found by summing the real rates on debt, which are projected to more than offset the before-tax rate of return required to cover certain costs (ρ) and the rate of depreciation (δ). APPENDIX B: THE EFFECTS OF THE 2017 TAX ACT ON CBO’S ECONOMIC AND BUDGET PROJECTIONS The Budget and Economic Outlook: 2018 to 2028 107 Table B-1 . Projections of Effective Marginal Federal Tax Rates Percent 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 Labor Income Rate Under Prior Law 29.4 29.5 29.7 29.8 30.0 30.1 30.2 30.4 30.5 30.6 30.7 Rate Under the 2017 Tax Act 27.2 27.4 27.6 27.7 27.9 28.1 28.2 28.5 30.6 30.7 30.8 Difference (Percentage points) -2.2 -2.2 -2.2 -2.1 -2.1 -2.0 -1.9 -1.9 * 0.1 0.1 Capital Income Rate Under Prior Law 16.5 16.8 17.9 17.9 17.9 17.9 17.9 17.9 17.9 18.0 18.0 Rate Under the 2017 Tax Act 14.7 14.7 14.6 14.5 15.4 15.7 16.1 16.5 16.0 16.5 16.5 Difference (Percentage points) -1.8 -2.1 -3.3 -3.4 -2.5 -2.2 -1.9 -1.4 -1.9 -1.5 -1.5 Source: Congressional Budget Office. The effective marginal tax rate on labor income is the share of an additional dollar of such income that is unavailable to a worker because it is paid in federal individual income taxes and payroll taxes or offset by reductions in benefits from government programs, averaged among workers with weights proportional to their labor income. The effective marginal tax rate on capital income is the share of the return on an additional investment made in a particular year that will be paid in taxes over the life of that investment. The before- and after-tax rates of return used to calculate that effective tax rate are weighted averages of the rates for every combination of asset type, industry, form of organization, and source of financing; the weights used are the asset values of each combination. All of those rates of return incorporate estimated values for interest rates on corporate debt, rates of inflation, and returns paid by C corporations on equity that are consistent with recent trends and with CBO’s economic forecast. Specifically, CBO has incorporated a nominal interest rate on debt for corporate securities of 5.8 percent; a rate of inflation, measured by the price index for urban consumers, of 2.4 percent; and a real return on equity of 5.2 percent. * = between zero and 0.05 percentage points. estimate, the act reduces the effective marginal tax rate as temporary measures that lower it expire and provisions on capital income, averaged over all types of investment, that push it up continue. by between 1.4 percentage points and 3.4 percentage points from 2018 to 2028 (see Table B-1). That in turn Changing the Corporate Income Tax Rate stimulates personal saving. Before the act was passed, businesses subject to the corporate income tax faced a graduated rate structure. In addition, CBO estimates that the act reduces, on The statutory tax rates were 15 percent, 25 percent, net, the effective marginal tax rate on labor income by 34 percent, and 35 percent, depending on the business’s 2.2 percentage points in 2018 and by slightly smaller income. The act replaces that structure with a single rate amounts through 2025, thereby encouraging work.2 of 21 percent, beginning in 2018. That change lowers, Beginning in 2026, the act is projected to boost the rate, on average, the tax rate paid by businesses subject to the corporate income tax. The change also contributes to the reduction of the effective marginal tax rate on capital income. 2. The effective marginal tax rate on labor income is the share of an additional dollar of such income that is unavailable to a worker because it is paid in federal individual income taxes and The corporate income tax distorts domestic economic payroll taxes or offset by reductions in benefits from government incentives, affecting the decisions made by corporations programs. That rate, like the effective marginal tax rate on capital and investors.3 In addition, variation among the cor- income, differs from statutory tax rates by taking into account porate tax systems of different countries distorts deci- different features of the tax code (for example, the gradual sions about where to locate international investment. reduction in the value of the earned income tax credit as income rises). For more information on how changes in after-tax wages distort incentives to work, see Robert McClelland and Shannon 3. For more information on how the corporate income tax distorts Mok, A Review of Recent Research on Labor Supply Elasticities, economic incentives, see Congressional Budget Office, Corporate Working Paper 2012-12 (Congressional Budget Office, October Income Tax Rates: International Comparisons (November 2005), 2012), www.cbo.gov/publication/43675. pp. 1–9, www.cbo.gov/publication/17501. 108 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 Reducing the corporate income tax rate in the United income earned by a U.S. corporation’s foreign subsidiary States reduces those distortions in several important were deferred until the income was repatriated—that is, ways. First, it reduces the pretax return required to distributed to the U.S. parent company. Earnings were induce businesses to invest. That reduces the user cost of considered repatriated if, for example, they were paid out capital and should therefore increase investment. Second, to shareholders as dividends, used to buy back shares, it makes debt financing less advantageous in relation to or used to fund an investment in physical capital in the equity financing—because businesses may deduct the United States. interest on debt from their taxable income, and the value of that deduction becomes smaller when tax rates are The 2017 tax act replaces that approach with a system lower. Third, the reduction in corporate income taxes that may more closely resemble territorial taxation. increases U.S. and foreign investors’ incentives to invest Dividends that a U.S. parent company receives from and to locate activities in the United States rather than its foreign subsidiaries will now be exempt from U.S. abroad.4 Fourth, it reduces the incentive to shift income taxation. However, foreign income that the government from the United States to lower-tax countries. regards as passive or highly mobile will still be taxed as the income is earned. Changing International Taxes The act changes how the United States taxes the foreign Because the repatriation of foreign earnings triggered income of U.S. corporations. It also imposes a onetime tax liability under prior law, some corporations behaved tax on previously untaxed foreign profits. And it adds as though they were constrained in how they could measures to discourage profit shifting, a practice in use foreign earnings. The new dividend exemption will which multinational corporations lower their tax liabili- eliminate that constraint. As a result, corporations will ties by shifting reported taxable income from affiliates in probably repatriate a larger share of their foreign earnings countries with higher corporate tax rates to affiliates in by reducing the amount that they reinvest in foreign countries with lower ones. economies. Changing the Taxation of Foreign Income. There are However, the dividend exemption is anticipated to two broad ways in which a country may tax the foreign encourage some further profit shifting, because corpora- income earned by a domestic corporation. Under a pure tions that shift profits from the United States to lower-­ worldwide system, any foreign income is taxed immedi- tax countries can now repatriate them without paying ately by the corporation’s home country. Under a pure taxes. That increase in profit shifting will reduce the territorial system, the corporation’s home country does amount of income subject to U.S. taxes. not tax foreign income at all.5 Onetime Tax on Previously Untaxed Foreign Under prior law, the United States had a system that Profits. The tax act also addresses the treatment of undis- more closely resembled worldwide taxation. However, tributed foreign earnings that accumulated before the only some types of foreign income—generally those taxation of foreign income was changed (see Box B-1). that the government regarded as being passive (such as It imposes a tax on those undistributed foreign earn- interest income) or highly mobile—were taxed as the ings, with separate rates for cash assets (15.5 percent) income was earned. Taxes on many types of foreign and noncash assets (8 percent). Corporations must pay the tax regardless of whether they actually repatriate 4. For more information about those incentives, see Congressional the earnings to the United States—a requirement often Budget Office, Taxing Capital Income: Effective Marginal Tax called “deemed repatriation”—and have the option of Rates Under 2014 Law and Selected Policy Options (December spreading the payment of the tax over eight years. The 2014), www.cbo.gov/publication/49817. For more information tax should have only a limited effect on the decisions about location decisions, see Congressional Budget Office, that corporations make, because it applies only to their International Comparisons of Corporate Income Tax Rates (March 2017), www.cbo.gov/publication/52419. existing stock of foreign earnings. 5. For a more detailed description of both approaches, see Measures to Reduce Profit Shifting. The act con- Congressional Budget Office, Options for Taxing U.S. Multinational Corporations (January 2013), www.cbo.gov/ tains several provisions to reduce corporations’ incen- publication/43764. tive to shift profits out of the United States. Two APPENDIX B: THE EFFECTS OF THE 2017 TAX ACT ON CBO’S ECONOMIC AND BUDGET PROJECTIONS The Budget and Economic Outlook: 2018 to 2028 109 Box B-1 . Repatriation of Undistributed Foreign Earnings Before the 2017 tax act was enacted, a multinational corpo- On the whole, however, CBO projects that the economic ration (MNC) could defer paying taxes on foreign earnings effects of deemed repatriation will be small. The MNCs that until they were distributed to the MNC’s parent company in refrained from distributing their foreign earnings tended to the United States. Earnings were considered distributed if, for be established corporations in the high-tech sector that faced example, they were paid out to shareholders as dividends, low costs in funding domestic activities and probably did not used to buy back shares, or used to fund an investment forgo worthy investments as a result of keeping their earnings in physical capital in the United States. To avoid the tax undistributed. Furthermore, even though the term “repatria- cost, MNCs left large amounts of earnings in their foreign tion” suggests that the undistributed funds will return to the subsidiaries—a total of $2.6 trillion as of 2015, according to the United States from abroad, they are often already invested staff of the Joint Committee on Taxation.1 in dollar-denominated fixed-income securities issued by U.S. borrowers. The funds are outside the United States only in The 2017 tax act mandates “deemed repatriation” for those the sense of being owned by a foreign subsidiary of a U.S. accumulated foreign earnings, which means that MNCs will pay corporation. In fact, MNCs have held a substantial fraction U.S. taxes on the earnings even if they are not distributed to of their undistributed funds as long-term Treasury securities, the United States. The act thus eliminates the tax disincentive CBO estimates. Finally, over the past decade, MNCs have paid to distribute those earnings. As a result, MNCs are expected large amounts of cash to their shareholders through share to end up deploying the earnings in their domestic operations repurchases even as they have kept earnings undistributed, more often. so it is unlikely that the foreign earnings represent pent-up The Congressional Budget Office projects that deemed repa- dividends or investments waiting to happen. triation will have some effects on MNCs’ financial decisions. In CBO’s projections, the effects of deemed repatriation on Before the change in law, some MNCs, to avoid paying the MNCs’ financial decisions lead to a small decrease in the cor- tax cost of using foreign earnings to fund investments and porate spread, which is the difference between corporate and payments to shareholders, used borrowed funds for those U.S. government interest rates. Corporations are expected to purposes, in CBO’s judgment. Because MNCs can no longer reduce their holdings of U.S. government debt and reduce their avoid the tax cost, CBO projects that some will reduce their borrowing. As they reduce holdings of federal debt, interest borrowing. Also, some of the previously undistributed earnings rates for it will rise; meanwhile, as they borrow less, interest can be paid to shareholders through share repurchases and rates for corporate debt will fall. The resulting decrease in larger dividends. the corporate spread should support additional corporate investment but put some upward pressure on the interest rates 1. Thomas A. Barthold, Joint Committee on Taxation, letter to the Honorable Kevin Brady, Chairman, House Ways and Means Committee, and the of Treasury notes. Honorable Richard Neal (August 31, 2016), https://go.usa.gov/xQrVY. provisions—which impose a tax on global intangible In addition to reducing profit shifting through the low-tax income (GILTI) and create a deduction for location of intangible assets, the GILTI and FDII foreign-­ erived intangible income (FDII)—reduce cor- d provisions affect corporations’ decisions about where to porations’ incentive to locate high-return assets (which locate tangible assets. By locating more tangible assets are often intangible assets, such as intellectual property, abroad, a corporation is able to reduce the amount of or IP) in low-tax countries. The provisions reduce that foreign income that is categorized as GILTI. Similarly, incentive by applying special treatment to profits that by locating fewer tangible assets in the United States, a exceed a specified return on tangible assets (such as equipment and structures).6 multinational corporation’s average foreign tax rate is below a certain threshold. The FDII deduction applies to U.S. profits that exceed a 10 percent return on U.S. tangible assets. The deduction 6. The GILTI provision imposes a tax on foreign income that is proportional to the share of U.S. income that is derived from exceeds a 10 percent return on foreign tangible assets if a foreign sales. 110 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 corporation can increase the amount of U.S. income that expense to an amount equal to a business’s interest can be deducted as FDII. Together, the provisions may income plus 30 percent of its adjusted taxable income. increase corporations’ incentive to locate tangible assets The measure of adjusted taxable income used for that abroad. (Like profit shifting, such decisions change the determination excludes interest income and expense. It locations of reported profits—but they are not classified also excludes deductions for depreciation and similar as profit shifting, because they involve actual economic costs through 2021 but then includes them. Business activity rather than simply reporting.) interest that is not deducted because it exceeds the limit may be carried forward—that is, potentially claimed Another provision, the base erosion and antiabuse tax in a future year. Special rules apply to pass-through (BEAT), limits the ability of both U.S. and foreign businesses. multinational corporations to use related-party transac- tions to shift profits from the United States to lower-tax Limiting the deductibility of interest creates an incen- countries. (Related-party transactions are transactions tive to reduce existing debt and reduces the incentive to between the affiliates of a multinational corporation.) issue new debt, particularly for companies that already BEAT imposes a minimum tax on relatively large multi- have substantial amounts of debt. Limiting interest national corporations, which must pay the larger of two deductions may also increase multinational corporations’ amounts: their regular tax liability, and a tax at a spec- incentive to borrow through affiliates that are not in ified rate (generally 10 percent) on a broader measure the United States instead of through affiliates that are. of U.S. taxable income that is adjusted for related-party That would increase profits reported by affiliates that transactions. are in the United States. In addition, the change in the definition of adjusted taxable income in 2022 lowers Changing the Taxation of Domestic Business Activity businesses’ capacity to deduct interest, encouraging larger The 2017 tax act makes numerous changes to tax investment and depreciation deductions before 2022. provisions that affect both corporate and noncorporate businesses. Those changes limit or eliminate some tax Limits on the Use of Net Operating Losses. Under prior preferences and thus increase the tax base (that is, the law, a net operating loss could be deducted from tax- total amount of income subject to tax); provide incen- able income up to 2 years in the past and up to 20 years tives for certain types of investments by allowing busi- in the future. For losses occurring after 2017, the act nesses to deduct the costs more rapidly; and create a new restricts the deduction to future income (for most deduction for certain owners of pass-through businesses industries), and it restricts the deduction to 80 percent of (which are businesses whose profits are taxed not directly taxable income. In addition, the 20-year limit is repealed. through the corporate income tax but when their owners pay income tax on their share of profits).7 On net, those For the owners of pass-through businesses, trade or changes reduce the effective marginal tax rate on capital business losses can be used to offset current-year income income paid by corporate and noncorporate businesses. from other sources. The act limits that current-year deduction to $500,000 annually for joint returns and Base Expansion. The act expands the business income $250,000 for single returns. Any excess loss can be tax base in a number of ways. One is a new limit on net deducted as a net operating loss in the future. interest deductions; another modifies the treatment of losses. Overall, those provisions treat losses less generously than prior law did. Restricting the deduction of losses to Interest Limit. Under prior law, a business could generally future income will mean that companies will no longer deduct its interest expense when calculating its taxable be able to use losses in a way that creates a current-year income. For businesses whose gross receipts are greater refund. That change may especially hurt corporations than $25 million, the act limits the deduction of interest without many liquid assets. In addition, the changes reduce corporations’ incentive to claim various deduc- tions that can result in losses. 7. For more information, see “Key Methods That CBO Used to Estimate the Macroeconomic Effects of the 2017 Tax Act” (supplemental material for The Budget and Economic Outlook: Deductions for Capital Investments. When a business 2018 to 2028, April 2018), https://go.usa.gov/xQcZD. invests in a tangible asset, it generally deducts the cost APPENDIX B: THE EFFECTS OF THE 2017 TAX ACT ON CBO’S ECONOMIC AND BUDGET PROJECTIONS The Budget and Economic Outlook: 2018 to 2028 111 of the investment over time until it has deducted the The rate at which those profits are taxed consequently full purchase price of the asset. For each type of asset, depends on which tax bracket the owner is in. Through tax law and regulations prescribe a depreciation schedule 2025, individual income tax rates are generally lower that determines the amount to be deducted each year. under the 2017 tax act than they would have been under Under certain circumstances, however, the cost of the prior law, but not by nearly as much as the corporate asset can be fully “expensed”—that is, fully deducted in income tax rate. However, the act also provides a tem- the year it is placed in service. The 2017 tax act expands porary new deduction to many owners of pass-through those circumstances for many types of tangible assets but businesses through 2025. The deduction is equal to restricts them for certain intangible ones—specifically, 20 percent of qualified business income, which includes research and development (R&D) and software devel- the reasonable compensation of owners for services opment. It increases the base amount of tangible equip- rendered to the business. Eligibility for the deduction ment that can be expensed under section 179 of the tax depends on both the owner’s income and the nature of code to $1 million, and it increases the base amount the business. The deduction phases out with income for of investment at which that expensing begins to phase owners of personal-service businesses (such as law firms, out to $2.5 million. The act also temporarily increases medical practices, and consulting firms). For other own- the percentage of the investment in new tangible equip- ers, the deduction may be limited by the wages that the ment that businesses can expense from 50 percent of the business pays and the property that it owns. acquisition cost to 100 percent; between 2023 and 2027, that “bonus depreciation” will be phased down to zero Because it has the same effect as a reduction in the tax in 20-percentage-point increments.8 In contrast, invest- rate, the deduction for pass-through businesses lowers ment in R&D and software development must now be the cost of capital for qualifying companies and reduces deducted in equal proportions over five years if the costs the disparity between the tax treatments of debt- and are incurred in 2022 or later; in the past, that investment equity-financed investment. It also reduces the disparity could be expensed. between the treatments of capital income earned by cor- porations and of capital income earned by pass-through The speed with which businesses can deduct their capital businesses. However, it may result in different tax rates spending affects the pretax rate of return needed to for different sources of labor income. That difference induce a new investment; it thus affects the user cost of could occur because the deduction gives owners of pass- capital as well. Expensing reduces the user cost of capital through businesses an incentive to underreport their by allowing businesses to deduct the cost of investment reasonable compensation—a tactic that has been used from their taxable income more quickly. The expansion successfully to avoid self-employment taxes in the past of expensing for tangible assets should result in more and that is not available to wage earners. In addition, investment in the qualifying types of assets. However, the deduction’s different treatment of different industries those types were already treated more favorably than could further affect economic decisions. nonqualifying types of tangible assets (mostly buildings), and the expansion of expensing will widen that disparity. Changing Individual Income Taxes The result will be some distortion in favor of the quali- The 2017 tax act changes individual income taxes, fying types. Requiring R&D and software development lowering statutory tax rates but also broadening the tax costs to be deducted over five years rather than imme- base through various provisions. On net, the act reduces diately will increase the cost of capital and thus reduce marginal tax rates: Provisions that reduce statutory rates those types of investment. and expand the standard deduction push marginal rates down, an effect only partly offset by provisions that limit Deduction for Certain Owners of Pass-Through itemized deductions and eliminate personal exemptions. Businesses. The profits of pass-through businesses are allocated to their owners, added to their taxable income, Most of the provisions involving individual income taxes and often taxed through the individual income tax. expire at the end of 2025. The temporary nature of those provisions will affect the behavior of some taxpayers; they will try to earn more during the years when rates 8. The bonus depreciation percentage was 50 percent in 2017; under prior law, it was scheduled to be 40 percent in 2018, are lower or to delay deductible expenses—whose value 30 percent in 2019, and zero thereafter. rises as rates increase—until after 2025. Many other 112 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 taxpayers will not change their behavior as a result of the The changes to the AMT have effects similar to those provisions’ temporary nature. That might occur because resulting from the reductions in statutory rates. However, they cannot change the timing of their taxable income, the effect on the labor supply is likely to be smaller, because they expect policymakers to permanently extend because higher-income people, most of whom are already the provisions, or because they are unaware of the expira- working full time, are less likely to increase their supply tion dates. of labor than the population as a whole is. Temporary Reduction in Individual Income Tax Rates. Temporary Changes to the Standard Deduction and Under prior law, taxable ordinary income earned by most Itemized Deductions. When preparing their income tax individuals was subject to the following seven statutory returns, taxpayers may either take the standard deduc- rates: 10 percent, 15 percent, 25 percent, 28 percent, tion, which is a flat dollar amount, or itemize—that is, 33 percent, 35 percent, and 39.6 percent.9 Different deduct certain expenses, such as state and local taxes, rates applied to different brackets of people’s taxable mortgage interest, charitable contributions, and some ordinary income. The 2017 tax act retains the seven-rate medical expenses. Taxpayers benefit from itemizing structure but reduces most of the rates; the new rates are when the value of their deductions exceeds the standard 10 percent, 12 percent, 22 percent, 24 percent, 32 per- deduction. Under prior law, however, the total amount cent, 35 percent, and 37 percent. The act also expands of most itemized deductions was generally reduced by the width of the brackets, increasing the number of 3 percent of the amount by which a taxpayer’s adjusted taxpayers subject to lower rates. gross income exceeded a specified threshold.12 Other restrictions applied to specific itemized deductions. The lower tax rates are projected to increase the supply of labor.10 Because they will increase after-tax returns on The 2017 tax act nearly doubles the size of the standard investment, they are also anticipated to boost investment deduction and repeals the overall limit on itemized by pass-through businesses, which are taxed through the deductions, but it also eliminates many small itemized individual income tax.11 deductions and reduces the amounts that can be claimed for two widely used deductions. First, deductions for Temporary Reduction in the Amount of Income state and local taxes—the sum of property taxes and Subject to the Alternative Minimum Tax. Some tax­ either income or sales taxes—may not exceed $10,000. payers are subject to the alternative minimum tax Second, taxpayers may deduct the interest on no more (AMT), which was intended to impose taxes on higher-­ than $750,000 of home mortgage debt, a reduction from income people who use tax preferences to greatly reduce $1.1 million under prior law. or even eliminate their liability under the regular income tax. The AMT allows fewer exemptions, deductions, and The combination of the higher standard deduction and tax credits than the regular income tax does, and tax- the restrictions on the two widely used deductions has a payers are required to pay the AMT if it is higher than number of effects: their regular tax liability. The 2017 tax act temporarily increases the income levels at which the AMT takes • The number of taxpayers itemizing deductions effect. As a result, less income is subject to the AMT. is expected to fall from 49 million in 2017 to 18 million in 2018. • After-tax income changes for many taxpayers. The 9. Taxable ordinary income is all income subject to the individual increase in the standard deduction causes after- income tax (other than most long-term capital gains and dividends) minus adjustments, exemptions, and deductions. tax income to rise for most taxpayers who did not previously itemize deductions. After-tax income also 10. For more information, see “Key Methods That CBO Used rises for some higher-income taxpayers, because the to Estimate the Macroeconomic Effects of the 2017 Tax Act” (supplemental material for The Budget and Economic Outlook: effect of restricting the two widely used deductions 2018 to 2028, April 2018), https://go.usa.gov/xQcZD. is offset by the repeal of the limit on total itemized 11. For discussion of that kind of taxation, see Congressional Budget Office, Taxing Businesses Through the Individual Income Tax 12. Adjusted gross income includes income from all sources not (December 2012), www.cbo.gov/publication/43750. specifically excluded by the tax code, minus certain deductions. APPENDIX B: THE EFFECTS OF THE 2017 TAX ACT ON CBO’S ECONOMIC AND BUDGET PROJECTIONS The Budget and Economic Outlook: 2018 to 2028 113 deductions. However, after-tax income falls for some Changing the Estate and Gift Taxes homeowners and residents of states and localities with The value of property transferred at death and of certain high taxes. gifts made during a person’s lifetime is subject to the federal estate and gift taxes.14 However, such transfers up • The restrictions affect the mix of investment. to a certain cumulative dollar amount are exempt from By applying caps to state and local property tax taxation. The 2017 tax act doubles the amount between deductions and by limiting the amount of deductible 2018 and 2025. mortgage interest, the act reduces the incentive to buy a house, or to invest in housing in other ways, That increase gives people a greater incentive to hold in relation to the incentive to make other kinds of assets and transfer them at death. In addition, the expira- investment. tion of the increase at the end of 2025 is likely to induce people to make gifts before 2026. Temporary Repeal of Personal Exemptions and Expansion of the Child Tax Credit. Under prior law, Eliminating the Penalty for Not Having Health taxpayers could generally claim a personal exemption for Insurance themselves and each dependent. That exemption reduced The Affordable Care Act includes a provision, generally their tax burden. In addition, taxpayers with income called the individual mandate, that requires most people below specified thresholds were eligible for a tax credit to have health insurance meeting specified standards of up to $1,000 for each qualifying child under the age and that imposes a penalty on those who do not comply of 17.13 That credit was partially refundable (mean- (unless they have an exemption). Under prior law, the ing that eligible people received money back from the size of the penalty was the greater of two quantities: a government if the value of the credit was greater than the fixed amount specified in law, or a specified fraction of amount of taxes that they owed). a household’s income. The tax act reduces the size of the penalty to zero, starting in 2019. The act repeals the personal exemption but doubles the size of the maximum child tax credit for most eligi- Because the size of the penalty increased with house- ble taxpayers; in addition, eligibility for the credit is hold income, it acted as a tax on income. In addition, extended to include more higher-income taxpayers. The it encouraged some people to buy subsidized insur- maximum refundable portion is increased to $1,400. ance through the marketplaces established under the Taxpayers can also claim a new $500 nonrefundable tax Affordable Care Act; the result was that they faced higher credit for each dependent who is not a qualifying child. marginal tax rates, because those subsidies shrink as income rises. Both of those effects discouraged work, so The effects of those provisions vary among groups of tax- the elimination of the penalty is projected to increase the payers. After-tax income is projected to decline for most labor supply slightly.15 taxpayers, including those without dependents who will no longer benefit from the personal exemption and many In addition, eliminating the penalty is expected to make other taxpayers for whom the expanded credits do not insurance premiums in the nongroup market, where compensate for the loss of the personal exemption. For insurance is purchased individually, higher than they many lower-income taxpayers with children, however, would otherwise have been. Insurers are required to after-tax income will increase. That effect occurs because provide coverage to any applicant, and they cannot vary many people with low income do not pay income taxes premiums to reflect enrollees’ health status or to limit and will therefore not be affected by the elimination of the personal exemption but will still benefit from the expanded refundable credit if they have children. 14. For more information about those taxes, see Congressional Budget Office, Federal Estate and Gift Taxes (December 2009), www.cbo.gov/publication/41851. 15. For further discussion of those effects, see Edward Harris and Shannon Mok, How CBO Estimates the Effects of the Affordable 13. For more information about the child tax credit, see Care Act on the Labor Market, Working Paper 2015-09 Congressional Budget Office, Refundable Tax Credits (January (Congressional Budget Office, December 2015), www.cbo.gov/ 2013), www.cbo.gov/publication/43767. publication/51065. 114 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 coverage of preexisting medical conditions. Those fea- rates, the effective marginal rate on labor income will be tures are most attractive to applicants with relatively high higher, beginning in that year, than it would have been expected costs for health care, so eliminating the penalty under prior law, CBO estimates. will tend to reduce insurance coverage less among older and less healthy people than among younger and health- How the Act Affects the Economic Outlook ier people, boosting premiums.16 In CBO’s projections, the effect of the 2017 tax act is to boost the average amount of real GDP by 0.7 percent Requiring an Alternative Inflation Measure to Adjust over the 2018–2028 period (see Table B-2). Real GDP Tax Provisions is boosted by 0.3 percent in 2018 and by 0.6 percent Many parameters of the tax system are adjusted for infla- in 2019, and the effect peaks at 1.0 percent in 2022. In tion, including the individual income tax brackets. Those later years, the effect is smaller, and by 2028 it has fallen adjustments prevent a general increase in prices from to an increase of 0.5 percent. That pattern arises because increasing taxes. Under prior law, most of those adjust- the act’s effects on real GDP growth are positive initially ments were based on changes in the consumer price and then negative. index for urban consumers (CPI-U), which is a measure of inflation calculated by the Bureau of Labor Statistics Like real GDP, real potential GDP is higher in every (BLS). Beginning in 2018, the measure used for adjust- year of the 11-year period because of the tax act. But ing most parameters of the tax system will be changed to through 2022, the increase in real GDP is greater than the chained CPI-U. Whereas the CPI-U measures infla- the increase in real potential GDP (see Figure B-1). The tion in the price of a fixed “basket” of goods, the chained result is that the positive output gap—the amount by CPI-U allows for adjustments in spending patterns by which real GDP exceeds real potential GDP—is larger consumers; also, unlike the CPI-U, it is little affected than it would have been otherwise. (Even without the by statistical bias related to the sample sizes BLS uses in act, real GDP would have been greater than real poten- computing each index. For both reasons, the chained tial GDP in CBO’s baseline projections.) CPI-U grows more slowly than the CPI-U does.17 In CBO’s projections, the former grows more slowly than That larger output gap through 2022 puts some upward the latter by 0.25 percentage points per year, on average. pressure on prices. Inflation (as measured by the price index for personal consumption expenditures) is pro- The change in the measure of inflation will increase jected to be slightly higher than it would have been revenues because it will accelerate a phenomenon called otherwise over the first several years of the period and real bracket creep, in which income is pushed into higher then to be unchanged. and higher tax brackets because it is rising faster than inflation. Real bracket creep results in individuals’ facing In CBO’s projections, the larger output gap and greater higher marginal tax rates, so it reduces the incentive inflationary pressure prompt the Federal Reserve to to work. Unlike many of the tax act’s changes to the respond by pushing interest rates higher over the next individual income tax, this change is permanent, and the few years than they would have been without the tax act. resulting increase in revenues will grow over time. The rate for 3-month Treasury bills is higher by 0.5 per- centage points by 2022, and the rate for 10-year Treasury In 2026, the temporary provisions of the act that push notes is 0.2 percentage points to 0.3 percentage points down marginal tax rates will have expired. Because the higher during the 2018–2022 period. Those higher inter- change in the measure of inflation pushes up marginal est rates and the end of the act’s cuts in personal income taxes in 2025 slow the growth of real GDP, reducing the 16. For more discussion, see Congressional Budget Office, Repealing pressure on prices and interest rates. However, as a result the Individual Health Insurance Mandate: An Updated Estimate of greater federal borrowing and certain provisions of the (November 2017), www.cbo.gov/publication/53300. tax act that affect portfolio decisions, interest rates on 17. For more information, see the testimony of Jeffrey Kling, 10-year notes are still slightly higher by 2028 than they Associate Director for Economic Analysis, Congressional Budget would have been otherwise. Office, before the Subcommittee on Social Security of the House Committee on Ways and Means, Using the Chained CPI to Index Social Security, Other Federal Programs, and the Tax Code for The projected gains in output generate increases in Inflation (April 18, 2013), www.cbo.gov/publication/44083. income for the employees and owners of the businesses APPENDIX B: THE EFFECTS OF THE 2017 TAX ACT ON CBO’S ECONOMIC AND BUDGET PROJECTIONS The Budget and Economic Outlook: 2018 to 2028 115 Table B-2 . Economic Effects of the 2017 Tax Act Average 2018– 2023– 2018– 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2022 2028 2028 Output (Percent) Real GDP 0.3 0.6 0.8 0.9 1.0 0.9 0.9 0.9 0.6 0.6 0.5 0.7 0.7 0.7 Real potential GDP 0.2 0.4 0.6 0.8 0.9 0.9 0.9 0.9 0.7 0.6 0.5 0.6 0.8 0.7 Nominal GDP 0.4 0.8 0.9 1.1 1.2 1.2 1.2 1.1 0.9 0.8 0.8 0.9 1.0 0.9 Real GNP 0.1 0.4 0.5 0.5 0.6 0.6 0.6 0.6 0.3 0.2 0.1 0.4 0.4 0.4 Contribution of Components to Real GDP (Percentage points) Private consumption 0.4 0.6 0.6 0.6 0.8 0.9 0.8 0.7 0.5 0.4 0.3 0.6 0.6 0.6 Private nonresidential fixed investment 0.2 0.4 0.5 0.5 0.4 0.3 0.3 0.3 0.2 0.1 0.1 0.4 0.2 0.3 Private residential investment * -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 -0.1 * * * -0.1 -0.1 -0.1 Government consumption and investment ** ** 0.1 0.1 0.1 0.1 0.1 0.1 0.1 ** ** ** 0.1 0.1 Net exports -0.3 -0.3 -0.2 -0.2 -0.2 -0.2 -0.1 -0.1 ** ** 0.1 -0.2 * -0.1 Exports -0.2 -0.1 -0.1 -0.1 * * * ** ** ** ** -0.1 ** * Imports a -0.1 -0.2 -0.2 -0.1 -0.1 -0.2 -0.1 -0.1 * ** ** -0.2 -0.1 -0.1 Potential Labor and Productivity (Percent) Potential labor force 0.1 0.3 0.4 0.4 0.5 0.5 0.5 0.4 0.3 0.2 0.2 0.3 0.4 0.3 Potential average labor hours 0.1 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1 * 0.3 0.2 0.2 Potential total labor hours 0.2 0.5 0.7 0.8 0.8 0.8 0.8 0.7 0.5 0.3 0.1 0.6 0.5 0.6 Potential labor productivity * -0.1 * ** 0.1 0.1 0.1 0.2 0.3 0.3 0.3 * 0.2 0.1 Employment and Unemployment Total nonfarm employment (Percent)† 0.2 0.5 0.6 0.7 0.7 0.7 0.7 0.7 0.6 0.6 0.6 0.5 0.6 0.6 Unemployment rate (Percentage points) * -0.1 -0.1 -0.1 -0.1 * * ** ** ** ** -0.1 ** * PCE Price Level (Percent) ** ** 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.1 0.2 0.1 Interest Rates (Percentage points) Federal funds rate 0.1 0.2 0.4 0.4 0.5 0.3 ** * * * ** 0.3 0.1 0.2 Three-month Treasury bills 0.2 0.2 0.4 0.4 0.5 0.3 0.1 * * * ** 0.3 0.1 0.2 Ten-year Treasury notes 0.3 0.2 0.2 0.2 0.2 0.1 ** ** ** ** ** 0.2 ** 0.1 International Measures Net international lending as a percentage of GDP (Percentage points) -0.4 -0.4 -0.4 -0.4 -0.5 -0.5 -0.4 -0.3 -0.2 -0.2 -0.2 -0.4 -0.3 -0.4 Net international income as a percentage of GDP (Percentage points) -0.1 -0.2 -0.3 -0.3 -0.4 -0.4 -0.3 -0.3 -0.3 -0.3 -0.4 -0.3 -0.3 -0.3 Export-weighted exchange rate (Percent) b 1.8 1.7 1.9 1.9 1.8 1.7 1.6 1.6 1.6 1.5 1.5 1.8 1.6 1.7 Memorandum: Real GDP Growth (Percentage points) 0.3 0.3 0.2 0.1 0.1 * * -0.1 -0.2 -0.1 -0.1 0.2 -0.1 ** PCE Price Inflation (Percentage points) ** ** ** ** ** ** ** ** ** * * ** ** ** Source: Congressional Budget Office. Real values are nominal values that have been adjusted to remove the effects of inflation. GDP = gross domestic product; GNP = gross national product; PCE = personal consumption expenditures; * = between -0.05 percent or percentage points and zero; ** = between zero and 0.05 percent or percentage points. a.A negative value indicates an increase in imports. b.A higher value indicates an increase in the exchange value of the dollar. [†Values corrected on April 17, 2018] 116 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 Figure B-1 . Economic Effects of the 2017 Tax Act at a Glance 1 The act boosts real GDP in relation to real potential GDP in the 2 That change creates additional excess demand in the near term. economy, raising the output gap, . . . Percent Percentage of Potential GDP 1.0 1.5 Effects of the Real GDP 2017 Tax Act 0.8 1.0 0.6 Real Potential 0.5 All Other Effects 0.4 GDP 0 0.2 -0.5 0 -1.0 2017 2019 2021 2023 2025 2027 2017 2019 2021 2023 2025 2027 3 . . . putting some upward pressure on consumer prices, . . . 4 . . . and pushing up interest rates. Percent Percentage Points 0.2 0.6 3-Month 0.4 Treasury 0.1 0.2 Bills 10-Year Treasury Notes 0 0 -0.2 2017 2019 2021 2023 2025 2027 2017 2019 2021 2023 2025 2027 Source: Congressional Budget Office. Real values are nominal values that have been adjusted to remove the effects of inflation. Potential GDP is CBO’s estimate of the maximum sustainable output of the economy. Excess demand exists when the demand for goods and services exceeds the amount that the economy can sustainably supply. The output gap is the difference between GDP and CBO’s estimate of potential GDP and is expressed as a percentage of potential GDP. Consumer prices are measured by the price index for personal consumption expenditures. GDP = gross domestic product. that produce the output. So employees’ total compen- by promoting increases in investment and the potential sation rises in CBO’s projections, as do their wages and labor supply. The act is also projected to raise measured salaries. (Total compensation includes not only wages total factor productivity, which is the average real output and salaries but also bonuses, stock options, benefits, and per unit of combined labor and capital services. On net, the employer’s share of payroll taxes for social insurance the act is projected to raise the level of potential output programs.) Corporate profits and business income also throughout the 2018–2028 period. The effect on poten- increase. tial output peaks at 0.9 percent in the middle years of the period and declines to 0.5 percent in 2028. In CBO’s Other organizations have also estimated the economic projections, the act’s contribution to real GDP at the end effects of the 2017 tax act (see Box B-2). The forecasts of the period results from an increase in the amount of vary, but most show increases in the level of real GDP potential output. over the first few years and a more moderate increase by 2027. Private Investment. Increases in investment boost potential output by increasing the stock of capital Effects on Potential Output goods—structures, equipment, intangible assets, and Various provisions of the 2017 tax act directly affect the i ­nventories—that are used to produce output. The productive potential of the U.S. economy. They do so act affects private investment through three channels: APPENDIX B: THE EFFECTS OF THE 2017 TAX ACT ON CBO’S ECONOMIC AND BUDGET PROJECTIONS The Budget and Economic Outlook: 2018 to 2028 117 Box B-2 . Comparison With Other Organizations’ Estimates Various organizations other than the Congressional Budget 0.3 percent to 1.3 percent; CBO’s projection is 0.7 percent. For Office have estimated the economic effects of the 2017 tax act. the 2023–2027 period, the average effect ranges from 0.3 per- In general, the organizations expect the act to increase the cent to 2.9 percent; CBO’s projection is 0.8 percent. In 2027, level of real gross domestic product (GDP) throughout the peri- the projected effect ranges from −0.1 percent to 2.9 percent; ods that they examine. Many of the forecasts follow a pattern CBO’s projection is 0.6 percent. similar to the one followed by CBO’s projections: increasing CBO limited its comparison to forecasts that broadly exam- positive effects on real GDP over the first several years, then a ined the final version of the tax act. Other forecasts examined moderation, and then a more muted effect by 2027. earlier versions of the act or only parts of it, so CBO did not In the organizations’ projections for the 2018–2022 period, include them in the comparison. the act’s expected average effect on real GDP ranges from Assorted Estimates of the Effects of the 2017 Tax Act on the Level of Real GDP Percent Tenth First Five Years Year Average 2018– 2023– 2018– 2018 2019 2020 2021 2022 2027 2022 2027 2027 Moody's Analytics 0.4 0.6 0.2 0.1 0.0 0.4 0.3 0.3 0.3 Macroeconomic Advisers 0.1 0.3 0.5 0.6 0.6 0.2 0.4 0.5 0.5 Tax Policy Center a 0.8 0.7 0.5 0.5 0.5 * 0.6 0.3 0.5 International Monetary Fund 0.3 0.9 1.2 1.2 1.0 -0.1 0.9 0.3 0.6 Joint Committee on Taxation – – – – – 0.1 to 0.2 0.9 0.6 0.7 Congressional Budget Office 0.3 0.6 0.8 0.9 1.0 0.6 0.7 0.8 0.7 Goldman Sachs 0.3 0.6 0.7 0.7 0.7 0.7 0.6 0.7 0.7 Tax Foundation 0.4 0.9 1.3 1.8 2.2 2.9 1.3 2.9 2.1 Penn Wharton Budget Model – – – – – 0.6 to 1.1 – – – Barclays 0.5 – – – – – – – – Sources: Congressional Budget Office and the organizations listed above. Real values are nominal values that have been adjusted to remove the effects of inflation. GDP = gross domestic product; – = not available; * = between -0.05 percent and zero. a.Values are for fiscal years. changes in incentives, crowding out (which occurs when Some of the changes to investment are financed by larger federal deficits reduce the resources available for domestic investors and some are financed by foreign private investment), and changes in economic activity.18 investors, resulting in changes to international invest- ment flows. 18. CBO estimated the act’s effects on investment in 32 types of equipment, 23 types of nonresidential structures, 3 types of IP In CBO’s projections, total business fixed investment— products, 3 types of residential capital, and inventories. For more which consists of investment in nonresidential struc- information, see “Key Methods That CBO Used to Estimate the Macroeconomic Effects of the 2017 Tax Act” (supplemental tures, equipment, and IP products—is higher in every material for The Budget and Economic Outlook: 2018 to 2028, year from 2018 through 2028 than it would otherwise April 2018), https://go.usa.gov/xQcZD. have been. It is boosted by changes in incentives and 118 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 Figure B-2 . Effects of the 2017 Tax Act on Business Fixed Investment Billions of Dollars 100 80 Changes in Incentives 60 Changes in Economic Activity Business fixed investment is greater 40 through 2028 because the positive 20 effects of changes in incentives and 0 economic activity offset the negative -20 effects of crowding out. Crowding Out -40 -60 2017 2019 2021 2023 2025 2027 Source: Congressional Budget Office. Business fixed investment is businesses’ purchases of equipment, nonresidential structures, and intellectual property products. The changes in incentives consist of changes in the user cost of capital, which is the gross pretax return on investment that provides the required return to investors after covering taxes and depreciation, and changes in the benefits of locating business establishments in the United States. Changes in economic activity consist of changes in demand for goods and services and changes in the supply of labor. Crowding out occurs when larger federal deficits reduce the resources available for private investment. stronger economic activity but dampened by crowding tax act depends partly on their expectations of future tax out from increased federal borrowing (see Figure B-2).19 policy. In CBO’s projections, 20 percent of investment is By contrast, residential investment is lower in every year made by businesses and households that expect provi- from 2018 through 2028 than it would otherwise have sions scheduled to end in 2026 actually to do so, and been. Incentives to undertake residential investment are 80 percent of investment activity is consistent with the reduced through 2025 by limits on the deductibility of provisions’ being extended.20 (The act also includes some property taxes and mortgage interest, as well as by fewer less significant changes in fiscal policy over the 11-year households’ itemizing deductions. Residential investment period, and CBO incorporated the projection that all is reduced throughout the entire period by crowding out. businesses and households behave as if they expect those changes to occur.) Changes in Incentives. The tax act affects investment in the United States by changing incentives to invest, The tax act affects the user cost of capital in different including the user cost of capital and thus the minimum ways for the three kinds of fixed business investment and return that an investment must achieve to be profitable. for residential investment (see Figure B-3). The act reduces the user cost of capital in various ways. Some provisions do so by reducing statutory tax rates. • Investment in equipment is projected to benefit the Extending bonus depreciation also reduces the user cost most from changes in the user cost of capital because of capital. However, the act increases the user cost of of lower statutory tax rates and the extension of capital for owner-occupied housing from 2018 through 100 percent bonus depreciation through 2022. The 2025 and for research and development beginning in allowed amount of bonus depreciation declines over 2022. the following several years, and by 2027, the increase The act specifies several significant changes in 2026 that affect the user cost of capital for pass-through businesses 20. Those projections of expectations are based on historical responses to extensions of major tax provisions. For more and for homeowners. As a result, their response to the information, see “Key Methods That CBO Used to Estimate the Macroeconomic Effects of the 2017 Tax Act” (supplemental 19. The incentives and crowding out that affect business fixed material for The Budget and Economic Outlook: 2018 to 2028, investment also affect investment in inventories. April 2018), https://go.usa.gov/xQcZD. Page 1 of 1 APPENDIX B: THE EFFECTS OF THE 2017 TAX ACT ON CBO’S ECONOMIC AND BUDGET PROJECTIONS The Budget and Economic Outlook: 2018 to 2028 119 Figure B-3 . Effects of the 2017 Tax Act on Investment Through Changes in Incentives Billions of Dollars 60 40 Equipment Nonresidential Structures The act’s changes in the tax treatment of depreciation eventually reduce the 20 effects of incentives on investment in equipment and intellectual property 0 products. -20 Intellectual Property Products -40 60 40 Limits on the tax deductibility of payments for property taxes and 20 mortgage interest, along with a drop in the number of households that take 0 itemized deductions, reduce spending on residential structures through 2025. -20 Residential Structures -40 2017 2019 2021 2023 2025 2027 Source: Congressional Budget Office. The changes in incentives consist of changes in the user cost of capital, which is the gross pretax return on investment that provides the required return to investors after covering taxes and depreciation, and changes in the benefits of locating business establishments in the United States. in investment that is due to changes in the user cost Consequently, starting in that year, investment in IP of capital stems almost entirely from the reduction in products is lower than it would otherwise have been. the corporate tax rate. • The bulk of residential investment is in owner- • Investment in nonresidential structures also benefits occupied housing. The tax act increases the user cost from lower statutory tax rates. In addition, certain of capital for homeowners from 2018 to 2025 by types of structures with relatively short tax lives, such limiting the deductibility of property taxes and as oil derricks, benefit from bonus depreciation. But mortgage interest and by reducing the number of by 2027, as with the previous category, the increase households that itemize. That increase outweighs a in investment that is due to changes in the user cost reduction in the user cost of capital for the people or of capital stems almost entirely from the reduction in pass-through businesses that own most rental housing the corporate tax rate. and that will benefit from lower individual tax rates during that period. Beginning in 2026, the act has • Investment in IP products is boosted by changes little impact on the user cost of residential capital. in the user cost of capital through 2021. However, in contrast to its treatment of equipment, the tax The tax act also increases incentives to invest in the act makes depreciation less generous for R&D United States by encouraging firms to locate their estab- and for software development beginning in 2022. lishments here. The primary means of encouragement is the reduction in the statutory corporate tax rate in the 120 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 Figure B-4 . Effects of the 2017 Tax Act on Investment Through Crowding Out Billions of Dollars 5 0 Intellectual Property Products -5 The reduction of investment resulting -10 from crowding out is greatest in 2022, Equipment when the effects of the act on the -15 federal deficit are the largest. Nonresidential Structures -20 Residential -25 Structures -30 2017 2019 2021 2023 2025 2027 Source: Congressional Budget Office. Crowding out occurs when larger federal deficits reduce the resources available for private investment. United States. However, that effect is partly offset by capital to the United States. In CBO’s assessment, the other changes. For example, the GILTI and FDII provi- crowding out of private investment occurs gradually, as sions may increase the incentive to locate tangible assets interest rates and the funds available for private invest- outside the United States. ment adjust in response to increased federal deficits. Furthermore, although the increased incentives to locate The reduction in private investment resulting from establishments in the United States will boost total crowding out occurs primarily because of higher interest investment, that effect is muted by the amount of labor rates, so the effects on different categories of investment available, in CBO’s estimation. In other words, barring depend on how sensitive they are to interest rates. In a change in the amount of labor supplied in the United general, interest rates constitute a larger share of the user States, business location decisions are projected to have cost of capital for types of capital that depreciate slowly, only a limited effect on investment. That is because the so changes in interest rates have a larger effect on invest- additional labor used by an establishment locating in the ment in those types of capital. For example, a 1 percent United States is no longer available to other establish- rise in mortgage rates would have a larger impact on ments. So the increased investment by the new establish- residential investment than a 1 percent rise in corpo- ment is partly offset by reduced investment by existing rate bond rates would have on businesses’ purchases of establishments. computers. Consequently, investment in residential and nonresidential structures bears a disproportionate share Crowding Out. CBO estimates that greater federal of the impact of larger deficits. The act’s crowding-out borrowing ultimately reduces private investment. When effects vary not only by type of investment but also as the government borrows, it borrows from people and time passes; the strongest effects occur in 2022, when the businesses whose savings would otherwise be financing act’s effects on the deficit are largest (see Figure B-4). private investment. Although an increase in government borrowing strengthens the incentive to save, the resulting Changes in Economic Activity. When demand for their rise in saving is not as large as the increase in government output increases, businesses invest in capital to meet borrowing; national saving, or the amount of domes- that additional demand; the expanded investment then tic resources available for private investment, therefore increases the potential output of the economy, because falls. However, private investment falls less than national a larger capital stock increases the businesses’ ability to saving does in response to government deficits, because produce output. The impact on investment is greatest the higher interest rates that are likely to result from during the period in which demand is accelerating. Once increased federal borrowing tend to attract more foreign businesses have invested enough to meet the additional Page 1 of 1 APPENDIX B: THE EFFECTS OF THE 2017 TAX ACT ON CBO’S ECONOMIC AND BUDGET PROJECTIONS The Budget and Economic Outlook: 2018 to 2028 121 demand, the only further stimulus to investment is the points during the 2018–2028 period; the peak effect is need to gradually replace the additional capital. 0.3 percentage points in 2023 and 2024. In CBO’s projections, the tax act increases demand Total potential hours worked, the result of increases primarily by increasing households’ demand for goods in both the potential labor force participation rate and services over the next few years, widening the output and average weekly hours, rise by an annual average of gap. Consequently, firms engage in investment to meet nearly 0.6 percent. The peak increase in potential hours that demand beyond what they would do in response to worked—more than 0.8 percent—occurs in 2023; by changing tax incentives. The act’s effect on investment 2028, the effect has dwindled to about 0.1 percent. CBO through that channel is positive during the period when estimates that more than half of the projected effects on the output gap is growing more rapidly than it would the overall potential labor supply result from increases in have in the absence of the act and negative when it is the potential labor force participation rate. The remain- growing less rapidly. der result from increases in average weekly hours.21 The act is also projected to expand investment through Those effects occur because the tax act changes incentives another change in economic activity: increasing the labor to work, particularly by lowering statutory individual supply. Businesses must purchase additional capital for income tax rates and by making other changes that lower the new workers to use. However, because firms adjust marginal tax rates through 2025.22 In the following their stocks of capital more slowly than they adjust the years, however, most of the relevant provisions that lower number of their employees, the response of investment tax rates expire, and marginal rates will be higher than to changes in the labor supply is gradual. under prior law, primarily because of the new measure of inflation that the act specifies for adjusting various How the Increase in Investment Is Financed. The projected parameters of the tax system. As a result, the act reduces increase in U.S. investment would be financed by private incentives to work in those years. An exception is the domestic and foreign saving. In CBO’s projections, the act’s elimination of the penalty for not having health private domestic saving rate initially rises in response to insurance. That elimination is permanent, so its effect on the higher after-tax rates of return on U.S. investment the potential labor supply—slightly increasing it, in part resulting from the tax act. In addition, because the act because the size of the penalty increased as household boosts U.S. economic output, national income rises, income increased, causing it to act as a tax on income— and total private domestic saving grows. (However, is projected to be permanent. some portion of the increased private domestic saving is used to finance increased federal borrowing, reducing CBO expects that it will take time for people to respond the amount of saving available for private investment.) to provisions in the act. The agency’s estimates therefore Earnings subject to deemed repatriation are expected to account for the time that it takes for people to under- be used primarily to reduce corporate debt and thus to stand the act’s effects and to make adjustments in how contribute only slightly to financing the increase in pri- much they work. For example, the estimates reflect the vate investment (see Box B-1 on page 109). Meanwhile, speed with which people are expected to increase their increases in the rate of return on investment in the supply of labor in response to lower tax rates in the early United States in relation to the rate in other countries years of the 11-year period and to decrease that supply will attract additional inflows of foreign saving. CBO after provisions expire later on. estimates, therefore, that a substantial portion of the increase in private investment will be financed through those inflows. 21. Even if that estimate of the relative shares were different, the Potential Labor Supply. In CBO’s projections, the estimated change in total potential hours worked would not change, and therefore the estimate of potential output would not 2017 tax act also boosts potential output by increasing either. the potential supply of labor through increases in the potential labor force participation rate and in hours 22. For more information, see “Key Methods That CBO Used to Estimate the Macroeconomic Effects of the 2017 Tax Act” worked per worker. The potential labor force participa- (supplemental material for The Budget and Economic Outlook: tion rate is higher by an annual average of 0.2 percentage 2018 to 2028, April 2018), https://go.usa.gov/xQcZD. 122 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 Also, as with expectations about capital costs, CBO generated by the same measured amount of labor and incorporated the projection that 20 percent of people capital. That is the definition of an increase in total factor anticipate the scheduled expiration of many of the bill’s productivity. CBO has therefore adjusted its projections provisions in 2025. Those people respond by supplying of potential total factor productivity by only a slight more labor in the years when tax rates are scheduled amount each year to account for the anticipated increase to be temporarily low. They also begin reducing their in output that is not matched by an increase in inputs. supply of labor even before the rates are scheduled to increase, because such adjustment is costly. People who Effects on Actual Output are projected to be surprised by the act’s change in tax In CBO’s projections, the 2017 tax act boosts the rates have more muted responses to the lower rates before demand for goods and services, accelerating the growth 2025 and also a more muted response to the increase of actual output in relation to the growth of potential afterward. Taken together, over the 11-year period, output over the first half of the 2018–2028 period. As CBO’s projections of the average labor response to the a result, the output gap is 0.1 percentage point larger tax act are not much affected by the agency’s projections between 2018 and 2022 than it would have been other- of people’s different expectations. wise, on average. Heightened overall demand is projected to increase consumer spending, increase employment Potential Productivity. Over the first few years of the further above CBO’s estimate of its potential level, 2018–2028 period, CBO projects, the 2017 tax act reduce net exports (that is, exports minus imports), and will not have much net effect on potential labor pro- slightly increase inflation. However, because most pro- ductivity, which is defined as real potential output per visions of the act that relate to individual income taxes potential hour of labor (see Table B-2 on page 115). If expire and thus subtract from overall demand after 2025, the contribution of capital to output rises more than the the output gap is 0.1 percentage point smaller in 2026 contribution of potential hours of labor, potential labor and slightly smaller in 2027 than it would have been productivity rises. At first, the act is projected to boost otherwise. hours and capital by similar amounts, so the effect on potential labor productivity is small. But in later years, Consumer Spending. The effect of the act on real GDP the contribution of capital to output has increased more over the next few years derives largely from its impact on than the contribution of potential hours, and by 2027, consumer spending. The act reduces individual income potential labor productivity is increased by 0.3 percent. tax revenues, increasing households’ disposable income Because the increase in the level of potential labor pro- and thereby their spending. The changes to individual ductivity is roughly unchanged between 2027 and 2028, income taxes include temporary changes to tax rates, it has little effect on potential output growth by the end the standard deduction, the personal exemption, the of the 11-year period. child tax credit, itemized deductions, and the alternative minimum tax. The act is also projected to raise potential output slightly by discouraging profit-shifting strategies that histori- Higher- and lower-income households adjust their cally have suppressed measured total factor productiv- spending differently, on average, in response to such ity. The act is expected to encourage firms to claim as increases in disposable income. CBO accounted for domestic production the services of IP that were pre- those differences by assessing the distribution of tax cuts viously claimed as production abroad (see Box B-3 on among income groups.23 In CBO’s assessment, lower-­ page 124). In CBO’s estimation, even though the firms income households spend a larger share of the additional made that claim, those services have been and continue income in such cases than higher-income households do. to be generated by IP assets that are included in estimates of the domestic capital stock. As a result, the shift in the CBO’s estimate of the overall effect on consumer spend- reported location of services associated with that IP will ing also incorporates the agency’s assessment of the act’s result in an increase in measured domestic output even though there is no corresponding increase in measured 23. For more information, see “Key Methods That CBO Used domestic inputs of labor or capital. Another way of look- to Estimate the Macroeconomic Effects of the 2017 Tax Act” ing at the shift is that more reported production is being (supplemental material for The Budget and Economic Outlook: 2018 to 2028, April 2018), https://go.usa.gov/xQcZD. APPENDIX B: THE EFFECTS OF THE 2017 TAX ACT ON CBO’S ECONOMIC AND BUDGET PROJECTIONS The Budget and Economic Outlook: 2018 to 2028 123 impact on equity and housing wealth. In CBO’s projec- investment stimulated by the act will raise demand for tions, lower corporate taxes contribute to the boost in imported capital goods (such as computers and machine consumer spending by increasing the after-tax earnings tools) and for imported materials (such as steel and of businesses, thereby raising the equity wealth of busi- aluminum). Furthermore, when the domestic economy nesses’ shareholders. Countering that effect are the act’s is operating above its potential, as it is in CBO’s projec- changes related to the standard deduction for individuals tions, additional increases to production are costly and and to the treatment of state and local taxes and mort- difficult, making the propensity to import goods and ser- gage interest deductions, which are expected to make vices particularly strong. And higher domestic demand house prices lower than they would be otherwise. CBO can push exports down as firms concentrate on satisfying does not expect the provisions that govern repatriation of that demand. businesses’ foreign earnings to affect consumer spending significantly (see Box B-1 on page 109). In addition, CBO expects the act to moderately increase the exchange value of the dollar in 2018 (see Table B-2 Furthermore, CBO’s estimate of the act’s impact on on page 115).24 Increased demand for U.S. assets, consumer spending accounts for the elimination of the which results mainly from the increase in the rate of penalty for not having health insurance. That change return on those assets, strengthens the dollar in CBO’s means that people will be less likely to obtain coverage, projections. That stronger dollar causes export prices decreasing subsidies and affecting consumer spending. to rise and import prices to decline. Consequently, real exports decrease, real imports increase, and real net Analysis of the act’s effect on consumer spending is com- exports fall. plicated by the fact that most of the changes to individ- ual income taxes are scheduled to end after 2025. What CBO expects the act’s initial effects on real net exports to people expect about expirations matters; a change in dis- begin to dissipate after 2019. One reason is that the act’s posable income that they consider transitory is likely to effect on the exchange value of the dollar is projected affect their spending less than one that they expect to last to gradually decline after 2020. In addition, the expi- longer. In CBO’s projections, about 80 percent of con- ration of the cuts in individual income taxes dampens sumer spending is undertaken by people who believe that consumer spending and thus imports. By 2026, CBO the individual income tax cuts will be extended beyond expects the act’s effect on real net exports to disappear. 2025, and the remainder is undertaken by people who believe that they will end as scheduled. (Those specifica- The Labor Market. Over the next few years, the wider tions are analogous to what CBO used for expectations output gap, and the resulting increase in demand for of fiscal policies affecting decisions to work and invest.) labor and upward pressure on wages, are projected to But CBO’s estimate of the overall change in consumer raise employment and hours worked further above spending in the next few years would not change very CBO’s estimate of their potential levels. The agency much if the agency used different specifications, because expects the tax act to initially lower the unemploy- the expectations in this case relate to relatively distant ment rate by a small amount, slightly widening the gap events. between that rate and the natural rate of unemploy- ment over the 2018–2022 period. (The natural rate of In later years, the end of most provisions related to unemployment is the rate of unemployment that results individual income taxes slows the growth of consumer from all sources except fluctuations in overall demand.) spending. In CBO’s projections, those changes subtract The unemployment rate is projected to be, on average, from disposable income and overall demand in 2026 0.1 percentage point lower—and the labor force partic- and 2027. ipation rate and total hours worked to be, respectively, 0.2 percentage points and 0.7 percent higher—than they Net Exports. In the near term, the act is projected to would have been otherwise between 2018 and 2022. boost real imports, reduce real exports, and therefore lower real net exports. In CBO’s projections, imports 24. CBO’s measure of the exchange value of the dollar is an export- rise in the near term because the act raises the domestic weighted average of the exchange rate indexes between the dollar demand for goods and services. For example, the capital and the currencies of leading U.S. trading partners. An increase in that measure indicates that the dollar is appreciating. 124 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 Box B-3 . The Effects of Profit Shifting on Economic Statistics The profit-shifting strategies used by multinational corporations U.S. residents from foreign sources and the income earned by (MNCs) affect many economic indicators. All of the strategies foreign individuals from U.S. sources) and net exports (which distort data about U.S. taxable income by inflating reported are exports minus imports). The reason that locating debt in foreign income while reducing reported domestic income. But the United States affects net international lending is that the the strategies alter other statistics in different ways. reduction in the U.S. net international investment position leads to a reduction in net international income. Because Although the 2017 tax act includes a number of provisions that there is no corresponding change in net exports, net interna- discourage profit shifting, it may encourage some profit shifting tional lending declines, along with gross national product. But by exempting foreign dividends from U.S. taxation. On net, the because reported production is unaffected, gross domestic Congressional Budget Office projects, the changes in tax law product (GDP) is unchanged. will reduce profit shifting by roughly $65 billion per year, on average, over the next 11 years. Most of that projected reduc- The act’s reduction in the U.S. corporate tax rate, combined tion can be attributed to less use of the debt allocation and with the new rules governing the deduction of interest, will intellectual property (IP) transfer strategies discussed below.1 reduce some use of this strategy. Before the act was enacted, a relatively high statutory tax rate made the United States an Locating MNCs’ Debt in High-Tax Countries. By allocating attractive location for debt. But now, because the United States a greater share of debt, and the associated deduction for is unlikely to continue to be the highest-taxed jurisdiction for interest payments, to high-tax countries, an MNC can reduce many MNCs, some will move their debt to affiliates in countries the amount of taxable income reported in those high-tax with a higher corporate tax rate. countries.2 In CBO’s projections, the reduction in profit shifting through decisions about debt location accounts for about half Transferring Intellectual Property. When an MNC moves its IP of the $65 billion total reduction in profit shifting resulting from from an affiliate in a high-tax country to an affiliate in a low-tax the tax act. country, that MNC can report less of its taxable income in the high-tax country and more in the low-tax country. CBO projects When a U.S. affiliate of an MNC borrows from a foreign bank that the tax act’s reductions in profit shifting through the trans- on behalf of the entire MNC (thus allocating debt to the United fer of IP will account for roughly one-third of the total projected States), that loan shows up in U.S. international investment reduction in profit shifting over the next 11 years. position accounts as an increase in foreign-owned U.S. assets. The result is a reduction in the United States’ net international Profit shifting through the international transfer of IP distorts investment position. real U.S. product statistics (that is, statistics adjusted to remove the effects of inflation) and real GDP. Royalties and other Locating debt in the United States can alter net international revenues derived from IP are counted in the national income lending—which is national saving minus domestic investment— and product accounts—official U.S. accounts that track the if that debt is borrowed from foreign investors. Net interna- amount and composition of GDP, the prices of its components, tional lending is also equal to the sum of net international and the way in which the costs of production are distributed as income (which is the difference between the income earned by income—as real production of IP services. When IP assets are transferred from the United States to another country, the real 1. MNCs use many strategies to shift profits to low-tax countries. For purposes services derived from those assets are attributed not to the of simplification, CBO has categorized all of them into the three types described here. United States but to the other country, so real net exports and real GDP are reduced. However, unlike locating debt in high- 2. The same incentive exists for a variety of other costs that benefit an MNC, tax countries, transferring IP has no effect on net international such as costs for headquarters. CBO focuses on debt both because it is the mechanism that this strategy usually employs and because the choice of lending, because any reductions to net exports associated where to locate debt has economic effects that are similar to those resulting with IP transfers are matched by an additional dollar of net from the use of the other mechanisms. international income. Continued APPENDIX B: THE EFFECTS OF THE 2017 TAX ACT ON CBO’S ECONOMIC AND BUDGET PROJECTIONS The Budget and Economic Outlook: 2018 to 2028 125 Box B-3. Continued The Effects of Profit Shifting on Economic Statistics CBO estimates that the reduction in the U.S. corporate tax to foreign affiliates.4 CBO projects that reduced profit shifting rate, combined with the new rules governing the treatment of through that strategy will account for only a small portion of income from high-return investments (much of which is derived the projected $65 billion annual reduction in profit shifting. from IP), will reduce corporations’ incentives to shift profits by That strategy tends to distort reported economic statistics transferring IP outside the United States. However, that effect about trade prices: In CBO’s view, the official U.S. export price is expected to be modest. IP is especially easy to relocate, so indexes are lower than they would have been otherwise, and MNCs are typically able to locate it in whichever affiliates face import price indexes are higher. Those inaccuracies distort the lowest tax rate on the income that it generates. Because overall U.S. price indexes that use trade prices as an input, tax havens outside the United States will continue to have such as the GDP deflator. relatively low tax rates, CBO projects that most IP currently located there will remain there. For newly created or future By distorting economic statistics about trade prices, the stra- IP, the changes resulting from the tax act and the fixed costs tegic setting of transfer prices also affects the national income of transferring IP to foreign affiliates will probably deter some and product accounts. The strategy leads nominal exports to small amount of profit shifting. be understated and nominal imports to be overstated, thereby reducing official measures of net exports and nominal GDP. Setting Transfer Prices. MNCs can reduce their U.S. taxes by strategically setting transfer prices—the prices that affiliates of Strategically setting transfer prices alters the composition of the same MNC charge each other across national boundaries.3 net international lending. But like transfers of IP, the strategy To minimize profits earned in high-tax countries, MNCs can has no effect on the total amount of net international lend- systematically overstate the prices that affiliates in high-tax ing, because each dollar that the strategy removes from net countries pay for imports from foreign affiliates and understate exports is offset by a dollar of foreign profit added to net inter- the prices that affiliates in high-tax countries charge for exports national income. And because transfer prices do not affect total national income, gross national product (the sum of domestic income and net international income) is likewise unchanged. 4. MNCs are required to set transfer prices similar to the prices that would 3. Technically, transferring IP to affiliates in low-tax countries can also be be paid for goods and services in market-based transactions. However, for categorized as strategically setting transfer prices. However, profit shifting some traded goods and services, it is difficult to find comparable market through IP transfers and profit shifting through setting the transfer prices of prices. For those transactions, MNCs have more leeway to strategically set tangible assets distort statistics in different ways. transfer prices to minimize tax liability. And nonfarm employment is projected to be, on aver- the near term. Finally, expectations of inflation, which age, about 0.6 percent higher over the 11-year period, have been low and relatively stable since the late 1990s, representing about 0.9 million jobs (see Table B-2 on are expected to remain close to the Federal Reserve’s page 115).* long-run goal in the coming years, as consumers and businesses expect the central bank to successfully adjust Inflation. CBO expects the 2017 tax act to have a monetary policy to prevent inflation from deviating positive but small effect on consumer price inflation excessively from its target.25 over the next few years. That expectation results from CBO’s estimates that the act will only slightly widen the As a result, core PCE inflation—that is, inflation for gap between the actual and natural rates of unemploy- personal consumption expenditures, excluding prices for ment and that the link between general price inflation and labor market conditions has been weak in recent 25. For more information, see “Key Methods That CBO Used years. In addition, the act is expected to slow growth in to Estimate the Macroeconomic Effects of the 2017 Tax Act” the prices of imported goods, slightly dampening the (supplemental material for The Budget and Economic Outlook: inflationary pressure from labor markets, particularly in 2018 to 2028, April 2018), https://go.usa.gov/xQcZD. [*Values corrected on April 17, 2018] 126 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 food and energy—is expected to be very slightly higher incorporated in the rates of such securities. The tax act each year between 2018 and 2025. The total PCE price increases that premium in CBO’s projections because index is expected to rise slightly more quickly than that, with greater upward pressure on inflation, longer-term as is the consumer price index; both are projected to be Treasury securities become less valuable as a hedge higher by 0.1 percent through 2023, on average, than against unexpectedly low inflation. The main factor that they would have been in the absence of the act and to be decreases the interest rates of Treasury securities over the higher by 0.2 percent in 2028. period is the increase in net foreign investment.26 Effects on Interest Rates Effects on Income In response to the projected widening of the output gap The economic effects of the tax act include not just and the greater inflationary pressure, CBO expects the greater GDP but also higher overall income. Domestic Federal Reserve to raise short-term interest rates more income that derives from the production of goods and rapidly over the next few years than it would have if the services—for labor, employees’ compensation and their 2017 tax act had not been enacted. As a result, the fed- wages and salaries; for businesses, corporate profits and eral funds rate (the interest rate that financial institutions proprietors’ income—is projected to rise with GDP. charge each other for overnight loans of their monetary Flows of net international income also change, reflecting reserves) is projected to be 0.5 percentage points higher the tax act’s effects. And businesses see changes in income in 2022 than it otherwise would have been. The faster in addition to those associated with production, which increase in interest rates is expected, in turn, to restrain will affect taxable business income. the boost in output by dampening consumption and investment spending, thereby limiting the increase in Employees’ Compensation and Wages and Salaries. demand for labor and keeping inflation close to the Employees’ total compensation in the economy behaves central bank’s long-term goal. CBO’s projections include in a pattern similar to that projected for total GDP. Over a slight and temporary reduction in short-term interest the 2018–2028 period, the act is projected to increase rates by the Federal Reserve in response to the end of such compensation by an annual average of 0.9 percent; most of the act’s individual income tax provisions after the peak effect is 1.0 percent in 2023. Average total 2025, but there is no net effect on short-term rates by wages and salaries follow a similar pattern—gaining the end of the 11-year period. 0.9 percent, on average, and peaking at an increase of about 1.1 percent in 2023. The effects on long-term interest rates follow a similar pattern. However, because long-term rates are partly Corporate Profits and Proprietors’ Income. In CBO’s determined by the average of expected short-term rates, projections, domestic corporate profits increase over the the effect on long-term rates is larger initially but more 11-year period, becoming 7.1 percent larger in 2028 muted overall. than they would have been without the 2017 tax act. The increase occurs partly because of greater total GDP CBO’s projections of interest rates over the 11-year and partly because of lower net interest payments by period are also based on the agency’s projections of a corporations. That second effect happens for two reasons. number of factors that affect the interest rates of U.S. First, corporations are expected to reduce their debt and Treasury securities over the longer run. On net, those interest payments in response to the act’s less favorable factors are projected to result in rates of longer-term treatment of interest costs. Second, corporations are esti- Treasury notes that are somewhat higher as a result of the mated to have held debt in the United States to finance tax act, even as rates of shorter-term Treasury securities domestic investment while they had substantial holdings are roughly unaffected. In CBO’s projections, factors of foreign profits. As those profits are repatriated, the that increase the interest rates of Treasury securities over corporations are expected to reduce their debt and inter- the period include the increase in federal borrowing and est payments (see Box B-1 on page 109). the increase in the after-tax rate of return on capital. Additional factors that increase the rates of longer-term Treasury securities include the reduction in companies’ 26. For more information, see “Key Methods That CBO Used to Estimate the Macroeconomic Effects of the 2017 Tax Act” holdings of such securities following deemed repatria- (supplemental material for The Budget and Economic Outlook: tion of foreign holdings and an increase in the premium 2018 to 2028, April 2018), https://go.usa.gov/xQcZD. APPENDIX B: THE EFFECTS OF THE 2017 TAX ACT ON CBO’S ECONOMIC AND BUDGET PROJECTIONS The Budget and Economic Outlook: 2018 to 2028 127 In addition, the change in the deductibility of net oper- In CBO’s projections, the provisions of the tax act reduce ating losses alters taxable corporate income. The act lim- profit shifting and the resulting statistical distortions, its the deductibility of those losses, so corporate income on net. That change in the reported location of profits is rises. But they may be deducted from future income, so expected to result in an increase in taxable income even the act largely alters when taxable corporate income will though there is no direct increase in measured income be reported rather than permanently increasing it. from domestic inputs of labor or capital. All told, the reduction in profit shifting raises income reported in In CBO’s projections, nonfarm proprietors’ income rises the United States by roughly $65 billion each year, by 1.2 percent over the 2018–2022 period before falling on average, in CBO’s projections over the 11-year back to a 0.3 percent gain by 2028, roughly following period. Changes in the location of debt and transfers the pattern projected for overall economic activity. Over of IP account for most of that reduction in total profit the 2018–2028 period, the increase averages 0.9 percent. shifting. Profit Shifting and Foreign Income. The act includes Effects on Gross National Product. The 2017 tax act is changes to the treatment of international income that expected to affect GDP and GNP differently. It raises will affect how multinational corporations shift their the projected level of real GDP by an annual average profits among affiliates in order to lower their tax liabil- of 0.7 percent over the 11-year period, an increase of ities. Three of the most widely used profit-shifting strat- about $710 per person (in 2018 dollars). Real GNP, by egies are locating debt in affiliates in countries with high contrast, increases by 0.4 percent, on average, or about corporate income tax rates, transferring intellectual prop- $470 per person.28 The act is expected to increase GNP erty, and strategically setting transfer prices (the prices less than it increases GDP because it shrinks U.S. net that affiliates charge each other across national boundar- international income (see Table B-2 on page 115). ies; see Box B-3 on page 124). Such profit shifting dis- torts the national income and product accounts—official There are two reasons for that decline in net income U.S. accounts that track the amount and composition flows to the United States. First, the increase in foreign of GDP, the prices of its components, and the way in investment in the United States that is associated with which the costs of production are distributed as income. greater private investment and increased government Profit shifting also lowers taxable corporate income in borrowing generates a fall in net international lending, the United States—by roughly $300 billion each year, which is national saving minus domestic investment.29 recent estimates from the economic literature suggest.27 In CBO’s projections, the act decreases net international CBO attributes most of that amount to decisions about lending over the next 11 years by an average of 0.4 per- the location of debt and transfers of IP. cent of GDP (see Figure B-5). The additional income generated by the foreign investment in the United States accrues to foreign investors. 27. That estimate was informed by CBO’s calculations and by The second reason is that the act alters the rates of return Fatih Guvenen and others, Offshore Profit Shifting and Domestic earned on international assets. As the after-tax profit- Productivity Measurement, Working Paper 23324 (National Bureau of Economic Research, April 2017), www.nber.org/ ability of U.S. investments rises because of the tax act, papers/w23324; Kimberly A. Clausing, “The Effect of Profit foreign investors earn a higher return on their U.S. Shifting on the Corporate Tax Base in the United States and assets. In addition, the reported rate of return that U.S. Beyond,” National Tax Journal, vol. 69, no. 4 (December 2016), investments earn abroad will decline after 2023 as the act pp. 905–934, http://dx.doi.org/10.17310/ntj.2016.4.09; Kimberly A. Clausing, The Effect of Profit Shifting on the Corporate 28. The peak effects for the per-person amounts occur in 2024, Tax Base in the United States and Beyond (available at SSRN, at $900 for real GDP per person and $640 for real GNP per November 2015, updated June 2016), pp. 905–934, http:// person; by 2028 the amounts are $550 for real GDP per person dx.doi.org/10.2139/ssrn.2685442; and Gabriel Zucman, and $250 for real GNP per person. “Taxing Across Borders: Tracking Personal Wealth and Corporate Profits,” Journal of Economic Perspectives, vol. 28, no. 4 (Fall 29. In the national income and product accounts, net international 2014), pp. 121–148, http://dx.doi.org/10.1257/jep.28.4.121. lending is called “net lending to the rest of the world.” Over most For a discussion of profit shifting and taxable income, see of the past 40 years, it has been negative, indicating that the Congressional Budget Office, An Analysis of Corporate Inversions United States is a net borrower. CBO projects that net lending (September 2017), www.cbo.gov/publication/53093. will remain negative from 2018 through 2028. 128 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 Figure B-5 . Effects of the 2017 Tax Act on Net Foreign Transactions Percentage of Gross Domestic Product 0.2 0 Growth in the federal deficit and -0.2 in investment increase borrowing Net International from foreigners, which reduces net Income international income. -0.4 Net International Lending -0.6 2017 2019 2021 2023 2025 2027 Source: Congressional Budget Office. Net international income is the difference between the income earned by U.S. residents from foreign sources and the income earned by foreign individuals from U.S. sources. Net international lending is a measure that summarizes a country’s transactions with the rest of the world; it consists of net exports, net international income, and net transfers. discourages U.S. companies from shifting their taxable period—increasing it through 2026 and decreasing income from the United States to affiliates in foreign it thereafter.30 Those deficit increases would increase countries. By altering the relative rates of return on inter- debt-service costs in every year and by growing amounts national assets through those changes, the act reduces net that total $471 billion over the period. international income and shrinks the difference between GDP and GNP. Those increases would be partially offset by macroeco- nomic feedback. In CBO’s projections, macroeconomic How the Act Affects the Budget Outlook feedback reduces the primary deficit by a cumulative The 2017 tax act had significant effects on CBO’s bud- $571 billion over the 2018–2028 period. That reduction getary projections for the 2018–2028 period. The agency mainly results from the act’s boost to taxable income, took two steps to incorporate those effects into the which increases revenues. The effects on the primary projections. First, CBO estimated the act’s direct effects, deficit, like those on taxable income, are largest in the which are the effects on the budget that do not take early years, peaking in 2019 and then getting smaller. into account any changes to the aggregate economy. For Macroeconomic feedback also raises debt-service costs example, this step incorporated the ways in which the through two partly offsetting effects: The reduction in act’s reduction in tax rates will diminish federal revenues the primary deficit lowers federal borrowing and thus through its effects on taxpayers’ behavior. Second, CBO debt-service costs, but the act also leads to higher interest considered macroeconomic feedback—that is, the ways rates and thus increases the cost of federal borrowing. in which the act will affect the budget by changing the overall economy (such as by increasing wages, profits, and interest rates). Incorporating both kinds of effects 30. Those direct effects on the primary deficit primarily reflect the boosts the projected primary deficit by a cumulative cost estimate produced by the staff of the Joint Committee on Page 1 of 1 Taxation. See Joint Committee on Taxation, Estimated Budget $1.272 trillion over the course of the 11-year period. Effects of the Conference Agreement for H.R. 1, the “Tax Cuts And After debt service too is incorporated, the projected defi- Jobs Act,” JCX-67-17 (December 18, 2017), https://go.usa.gov/ cit is higher by $1.854 trillion (see Table B-3). xQczr (PDF, 37 KB). However, in contrast to the cost estimate, the estimates reported in this appendix extend through 2028 and Before incorporating macroeconomic feedback, CBO include debt-service costs. The direct effects shown in Table B-3 also reflect a number of technical revisions. The sources of those estimates that the tax act would increase the primary revisions include information about the implementation of the deficit by a cumulative $1.843 trillion over the 11-year tax act learned in recent months. APPENDIX B: THE EFFECTS OF THE 2017 TAX ACT ON CBO’S ECONOMIC AND BUDGET PROJECTIONS The Budget and Economic Outlook: 2018 to 2028 129 Table B-3 . Contributions of the 2017 Tax Act to CBO’s Baseline Budget Projections Billions of Dollars Total 2018– 2018– 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2022 2028 Effects Without Macroeconomic Feedback a  b Effects on the Primary Deficit 194 281 307 304 263 218 183 164 36 -60 -46 1,349 1,843 Effects on Debt-Service Costs 3 8 17 29 39 48 55 63 68 70 71 97 471 Effects on the Deficit c 197 289 325 333 302 266 238 227 104 10 25 1,445 2,314 Effects of Macroeconomic Feedback a  b Effects on the Primary Deficit -33 -67 -65 -58 -55 -49 -47 -49 -48 -50 -51 -278 -571 Effects on Debt-Service Costs 0 5 12 18 23 27 23 13 3 -4 -11 59 110 Effects on the Deficit c -33 -61 -53 -41 -31 -22 -24 -36 -44 -54 -62 -219 -461 Total Contributions to Baseline Projections Effects on the Primary Deficit b 160 214 243 246 208 169 136 115 -12 -110 -97 1,071 1,272 Effects on Debt-Service Costs 3 14 29 47 63 74 78 76 71 66 60 156 582 Effects on the Deficit c 164 228 272 292 271 243 214 191 59 -43 -37 1,226 1,854 Source: Congressional Budget Office. a.Macroeconomic feedback refers to the ways in which the act would affect the budget by changing the economy. b.The primary deficit is the deficit excluding debt-service costs. c.Positive numbers indicate an increase in the deficit; negative numbers indicate a decrease in the deficit. On net, macroeconomic feedback from the act raises will be able to enforce the limits that the act places on projected debt-service costs by $110 billion over the next the types of income that are eligible for the deduction. 11 years. States’ and Foreign Countries’ Responses Uncertainty Surrounding CBO’s Estimates If state governments and foreign countries change their CBO’s estimates of the economic and budgetary effects own fiscal policies in unanticipated ways in response to of the 2017 tax act are subject to significant uncertainty. the tax act, those changes will have implications for the The agency is particularly uncertain about how the act act’s economic and budgetary effects. For example, many will be implemented; what policies state governments state governments could choose not to incorporate some and foreign countries might change in response to the of the act’s provisions—such as those involving personal act; what expectations people have about future fiscal deductions and bonus depreciation—in their own tax policy; how businesses will rearrange their finances in the systems. That step would significantly affect how house- face of the act; how households, businesses, and foreign holds and firms chose to adapt to the changes. Foreign investors will respond to changes in incentives to work, governments might reduce their corporate tax rates or save, and invest in the United States; and how changes in adjust their tax rules in unanticipated ways in response economic activity will affect labor and capital income. to the changes in U.S. tax law. In particular, if foreign governments significantly lowered their tax rates on cor- Implementation porate income, that would dampen net inflows of foreign How the Treasury ultimately implements the tax act will capital. In addition, foreign governments are expected partly determine how businesses and households respond to challenge several of the new tax rules with the World to the various provisions. For example, CBO’s projec- Trade Organization. If those challenges are broadly suc- tions of the new deduction for owners of pass-through cessful, the United States could be subject to retaliatory businesses incorporate the expectation that the Treasury tariffs unless the tax provisions were changed. 130 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 People’s Expectations income and wealth affect consumer spending. CBO In CBO’s projections, 20 percent of households and tries to produce assessments that lie in the middle of the businesses expect fiscal policy to change over the 2018– distribution of possible outcomes. But if fewer people 2028 period as the tax act specifies; others are surprised than CBO expects respond to lower marginal tax rates by by those changes. Such expectations can have important participating in the labor force, for example, the boost effects on how households and businesses respond to the in potential GDP will likewise be smaller than CBO pro­ act. For example, if more people expect the reduction in jects. Another example involves the expected response of individual income tax rates to be temporary, as the act international investors to the reduction in U.S. corporate specifies, more may shift their supply of labor from later tax rates. If they increase investment more than CBO years into the years before rates are scheduled to go up. expects, capital stock will increase more and the effects If that happened, the timing of CBO’s projections would on actual and potential output will be larger. change, but the average effect over the 11-year period would not be strongly affected. Some effects may differ from CBO’s assessments because those effects may depend on economic conditions in a Profit Shifting by Multinational Corporations way that the agency has not incorporated. For example, The effect of the tax act’s international provisions on CBO has not accounted for the extent to which the act’s profit shifting by multinational corporations is particu- limits on the deductibility of net operating losses could larly uncertain. One source of uncertainty is the pro- discourage investment more during periods of economic visions’ complexity, which makes it difficult to predict weakness than in periods of economic strength. (The how and when corporations might respond to them. effect of those limits is uncertain for other reasons as CBO is also uncertain about how foreign governments well. For example, they could dampen the positive incen- might change their tax rules in response to the act. For tives to invest that result from other provisions in the tax instance, those governments might lower their own act, a possibility that CBO has not accounted for in its corporate income tax rates to better compete for interna- projections.) tional investment; that change would dampen the act’s expected effect on profit shifting. And CBO is uncertain Changes in Economic Activity about whether the provisions will be deemed compliant CBO projects that the tax act will increase labor income with international rules. and capital income, boosting demand for goods and services over the next several years. But demand may Decisions to Work, Save, and Invest respond more or less to those changes in income than Many economic effects of the new legislation stem from CBO estimates. Moreover, the changes in economic its effects on individuals’ decisions to work and save activity resulting from the act may have smaller or larger and on businesses’ decisions to invest. CBO’s estimates effects on businesses than CBO estimates. For example, of those effects reflect the agency’s assessment of how if businesses increase investment more than expected in changes in individual and corporate tax rates affect the response to increases in economic activity, labor produc- supply of labor and the user cost of capital, as well as tivity and wages will rise faster than they do in CBO’s its assessment of how changes in individuals’ disposable projections. APPENDI X C Appendix C Trust Funds Overview income. The reverse happens when revenues for a trust The federal government uses several accounting mecha- fund fall short of expenses. nisms to link earmarked receipts (that is, money desig- nated for a specific purpose) with corresponding expen- The balance of a trust fund at any given time is a mea- ditures. Those mechanisms include trust funds (such as sure of the historical relationship between the related Social Security’s trust funds), special funds (such as the program’s receipts and expenditures. That balance (in fund that the Department of Defense uses to finance its the form of GAS securities) is an asset for the individ- health care program for military retirees), and revolv- ual program, such as Social Security, but a liability for ing funds (such as the Federal Employees Group Life the rest of the government. The resources to redeem a Insurance fund). When the receipts designated for those trust fund’s securities—and thereby pay for benefits or funds exceed the amounts needed for expenditures, the other spending—in some future year must be generated funds are credited with nonmarketable debt instruments through taxes, income from other governmental sources, known as Government Account Series (GAS) securities, or borrowing from the public in that year. Trust funds which are issued by the Treasury. At the end of fiscal year have an important legal meaning in that their balances 2017, there was $5.5 trillion in such securities outstand- are a measure of the amounts that the government has ing, 90 percent of which was held by trust funds.1 the legal authority to spend for certain purposes under current law, but they have little relevance in an economic The federal budget has numerous trust funds, although or budgetary sense unless the limits of that authority are most of the money credited to such funds goes to fewer reached.2 than a dozen of them. By far the largest trust funds are Social Security’s Old-Age and Survivors Insurance To assess how all federal activities, taken together, affect (OASI) Trust Fund, the funds dedicated to the govern- the economy and financial markets, it is useful to include ment’s retirement programs for its military and civilian the cash receipts and expenditures of trust funds in the personnel, and Medicare’s Hospital Insurance (HI) Trust budget totals, along with the receipts and expenditures Fund (see Table C-1). of other federal programs. Therefore, the Congressional Budget Office, the Office of Management and Budget, How Trust Funds Work and other fiscal analysts generally focus on the total Ordinarily, when a trust fund receives cash that is not deficit in that unified budget, which includes the needed immediately to pay benefits or cover other transactions of trust funds. expenses financed from the fund, the Treasury issues GAS securities in that amount to the fund and then uses the extra income to reduce the amount of new federal borrowing that is necessary to finance governmental activities. In other words, the government borrows less from the public than it would without that extra net 2. For example, if the Disability Insurance Trust Fund’s balance declined to zero and current revenues were insufficient to cover benefits specified in law, the Social Security Administration 1. Debt issued in the form of GAS securities is included in a would no longer be permitted to pay full benefits when they measure of federal debt called gross debt. Because such debt is were due. For additional discussion, see William R. Morton, intragovernmental in nature, however, it is not included in the Social Security: What Would Happen If the Trust Funds Ran Out? measure of debt held by the public. (For a discussion of different Report for Congress RL33514 (Congressional Research Service, measures of federal debt, see Chapter 4.) September 12, 2017). 132 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 Table C-1 . Trust Fund Balances Projected in CBO’s Baseline Billions of Dollars Actual, 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 Social Security Old-Age and Survivors Insurance 2,820 2,802 2,789 2,764 2,714 2,634 2,521 2,375 2,191 1,972 1,711 1,398 Disability Insurance a 70 94 91 77 62 46 27 6 0 0 0 0 Subtotal 2,890 2,895 2,880 2,841 2,776 2,680 2,549 2,381 2,191 1,972 1,711 1,398 Medicare Hospital Insurance (Part A) a 198 202 198 190 174 136 98 63 3 0 0 0 Supplementary Medical Insurance (Part B) 71 92 89 81 83 75 79 100 106 118 127 116 Subtotal 268 294 286 270 257 211 178 164 109 118 127 116 Military Retirement 661 737 822 911 1,006 1,100 1,206 1,323 1,439 1,561 1,578 1,589 Civilian Retirement b 925 938 951 962 974 985 995 1,005 1,015 1,025 1,034 1,043 Unemployment Insurance 61 70 83 89 87 81 77 74 74 74 73 72 Highway and Mass Transit a 52 44 31 16 1 0 0 0 0 0 0 0 Airport and Airway 13 14 16 17 18 20 21 23 25 27 30 33 Railroad Retirement (Treasury holdings) c 2 2 2 2 2 2 2 2 2 2 2 2 Other d 110 115 118 123 125 127 129 132 135 140 144 149 Total Trust Fund Balance 4,983 5,110 5,189 5,233 5,246 5,206 5,157 5,104 4,990 4,918 4,700 4,402 Memorandum: Railroad Retirement (Non-Treasury holdings) c 25 25 24 23 22 21 21 20 20 19 19 19 Source: Congressional Budget Office. These balances are for the end of the fiscal year and include securities invested in Treasury holdings. a. In keeping with the rules in section 257 of the Balanced Budget and Emergency Deficit Control Act of 1985, CBO’s baseline incorporates the assumption that scheduled payments will continue to be made in full after the trust fund has been exhausted, although there is no legal authority to make such payments. Because how those payments were continued would depend on future legislation, CBO shows zero rather than a cumulative negative balance in the trust fund after the exhaustion date. b. Includes Civil Service Retirement, Foreign Service Retirement, and several smaller retirement trust funds. c. The Railroad Retirement and Survivors’ Improvement Act of 2001 established the National Railroad Retirement Investment Trust, which is allowed to invest in non-Treasury securities such as stocks and corporate bonds. d. Consists primarily of trust funds for federal employees’ health and life insurance, Superfund, and various insurance programs for veterans. Projected Trust Fund Balances and income credited to the trust funds is also projected to Effects on the Budget exceed outlays in each year from 2019 through 2021. According to CBO’s current baseline projections, the However, each year thereafter, spending from the trust balances held by federal trust funds will increase by funds is projected to exceed income by an increasing $123 billion in fiscal year 2018.3 Under current law, amount. All told, CBO projects a cumulative net trust fund deficit of $1.2 trillion over the 2019–2028 period 3. Some spending from trust funds is governed by annual (see Table C-2).4 appropriations (for example, for administrative activities); most notably, outlays from the Highway Trust Fund are Appropriations Act, 2018 (Public Law 115-141), was enacted on primarily controlled by limitations on obligations that are set March 23, 2018, but there was insufficient time to incorporate in appropriation acts. When CBO produced its estimates of the final appropriations into the estimates of trust fund balances. trust fund spending and balances, most federal agencies were operating under a continuing resolution that held appropriations 4. The estimated decline in trust fund balances is substantially larger for 2018 at 2017 levels. For its baseline projections, CBO than in previous years: As the 10-year baseline period advances, incorporated the assumption that future funding will be equal to years showing a surplus (in the near term) are replaced with years those amounts, adjusted annually for inflation. The Consolidated showing a deficit (at the end of the decade). APPENDIX C: TRUST FUNDS The Budget and Economic Outlook: 2018 to 2028 133 Table C-2 . Trust Fund Deficits or Surpluses Projected in CBO’s Baseline Billions of Dollars Total Actual, 2019– 2019– 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2023 2028 Social Security Old-Age and Survivors Insurance 24 -19 -13 -25 -51 -79 -113 -146 -184 -219 -261 -313 -280 -1,404 Disability Insurance a 24 24 -3 -13 -15 -16 -19 -21 -23 -26 -28 -27 -67 -192 Subtotal 47 6 -16 -38 -66 -96 -131 -168 -208 -245 -289 -340 -347 -1,596 Medicare Hospital Insurance (Part A) a 6 5 -5 -8 -15 -38 -38 -35 -60 -71 -78 -114 -104 -461 Supplementary Medical Insurance (Part B) 7 21 -3 -8 3 -8 4 21 6 12 9 -11 -12 24 Subtotal 13 26 -8 -16 -13 -46 -33 -14 -54 -59 -68 -125 -116 -437 Military Retirement 70 76 85 89 95 95 105 117 116 123 17 11 469 852 Civilian Retirement b 18 13 13 12 11 11 11 10 10 10 9 9 57 105 Unemployment Insurance 7 10 13 6 -2 -6 -4 -2 -1 * -1 -1 7 2 Highway and Mass Transit a -12 -9 -13 -14 -16 -17 -19 -20 -21 -23 -24 -25 -79 -192 Airport and Airway * 1 2 1 1 1 2 2 2 2 3 3 7 18 Other c 3 2 2 2 3 4 4 5 5 5 5 5 15 39 Total Trust Fund Deficit (-) or Surplus 146 123 78 42 13 -55 -66 -70 -152 -188 -349 -463 12 -1,208 Intragovernmental Transfers to Trust Funds d 729 752 733 761 810 855 907 951 961 1,036 983 1,031 4,066 9,028 Net Budgetary Impact of Trust Fund Programs -583 -629 -655 -719 -797 -909 -972 -1,021 -1,113 -1,223 -1,331 -1,494 -4,054 -10,236 Source: Congressional Budget Office. Negative numbers indicate that the trust fund transactions add to total budget deficits. * = between -$500 million and $500 million. a. CBO projects that the balance of this trust fund will be exhausted during the 2018–2028 period. However, in keeping with the rules in section 257 of the Balanced Budget and Emergency Deficit Control Act of 1985, CBO’s baseline incorporates the assumption that scheduled payments will continue to be made in full after the trust fund has been exhausted, although there is no legal authority to make such payments. How those payments were continued would depend on future legislation. b. Includes Civil Service Retirement, Foreign Service Retirement, and several smaller retirement trust funds. c. Consists primarily of trust funds for railroad workers’ retirement, federal employees’ health and life insurance, Superfund, and various insurance programs for veterans. d. Includes interest paid to trust funds, payments from the Treasury’s general fund to the Supplementary Medical Insurance Trust Fund, the government’s share of payments for federal employees’ retirement, lump-sum payments to the Civil Service and Military Retirement Trust Funds, taxes on Social Security benefits, and smaller miscellaneous payments. Some of the trust funds’ income is in the form of intra- to exceed $1.0 trillion in 2028. Excluding those trans- governmental transfers. Such transfers include interest fers and counting only income from sources outside the credited to the trust funds, payments from general funds government (such as payroll taxes and Medicare premi- to cover most of the costs of payments for outpatient ums), CBO estimates that the trust fund programs will medical services (including payments to physicians) and add $629 billion to the federal deficit in 2018. They prescription drugs under Parts B and D of Medicare, are projected to add to deficits throughout the 2019– and the government’s share of payments for federal 2028 period, by amounts that grow from $655 billion in employees’ retirement programs. Such transfers shift 2019 to $1.5 trillion in 2028. resources from one category of the budget to another, but they do not directly change the total deficit or the Without legislative action to address shortfalls, balances government’s borrowing needs. Intragovernmental in three trust funds are projected to be exhausted during transfers are projected to total $752 billion in 2018 and that period: the Highway Trust Fund (in fiscal year 134 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 2022), Social Security’s Disability Insurance (DI) Trust with interest receipts included, the OASI trust fund is Fund (in fiscal year 2025), and Medicare’s HI trust fund projected to record deficits that will reach $313 billion (in fiscal year 2026). in 2028. According to CBO’s most recent long-term projections, the balance of the OASI trust fund will be Social Security’s Trust Funds exhausted in calendar year 2031.6 Social Security provides benefits to retired workers, their families, and some survivors of deceased workers through Disability Insurance the OASI program; it also provides benefits to some The DI trust fund is much smaller than the OASI fund; people with disabilities and their families through the its balance at the end of 2017 was $70 billion. In CBO’s DI program. Those benefits are financed mainly through current baseline, the annual income of the DI fund, payroll taxes that are collected on workers’ earnings at excluding interest, declines from $169 billion in 2018 a rate of 12.4 percent—6.2 percent of which is paid to $145 billion in 2019, when the temporary increase by the worker and 6.2 percent by the employer. Since in the payroll tax allocation expires at the end of that January 2000, 10.6 percentage points of the payroll tax calendar year. The fund’s income is projected to grow have been credited to the OASI trust fund and 1.8 per- gradually beginning in 2021 and to reach $193 billion centage points to the DI trust fund. The Bipartisan in 2028 (see Table C-3). As with the OASI fund, annual Budget Act of 2015 (Public Law 114-74) temporarily expenditures from the DI fund are projected to increase increased the share allocated to the DI trust fund to steadily over the next decade, but at a slower rate—about 2.37 percentage points for calendar years 2016 through 4 percent—rising from $147 billion in 2018 to $220 bil- 2018. In those years, 10.03 percentage points of the pay- lion in 2028. Under current law, annual noninterest roll tax have been credited to the OASI trust fund. income credited to the DI fund will exceed expenditures in 2018 because of the payroll tax reallocation, but the Old-Age and Survivors Insurance DI trust fund is projected to add to the federal deficit The OASI trust fund, which held $2.8 trillion in GAS each year thereafter, CBO estimates. Even with interest securities at the end of 2017, is by far the largest of receipts included, the trust fund is projected to run an all federal trust funds. CBO projects that the fund’s annual deficit starting in 2019 (see Figure C-1). annual income, excluding interest on those securities, will increase from $738 billion last year to $743 bil- Under current law, the balance of the DI fund is lion in 2018. Under current law, noninterest income expected to be exhausted in 2025.7 If the outlays were received by the fund would increase over the remainder limited thereafter to income credited to the trust fund, of the period, growing to $1.2 trillion by 2028, CBO then during the remainder of fiscal year 2025 they would estimates (see Table C-3).5 Expenditures from the fund be 12 percent below the amounts scheduled under cur- are projected to be $843 billion in 2018—exceeding rent law, CBO estimates. noninterest income by $101 billion—and to grow faster than noninterest income each year over that period, Trust Funds for Federal Employees’ rising to $1.6 trillion in 2028. Retirement Programs After Social Security, the largest trust fund balances at With expenditures growing by an average of about 6 per- the end of 2017 were held by the Military Retirement cent a year and noninterest income (mostly from payroll Trust Fund ($661 billion) and by various civilian taxes) increasing by an average of about 5 percent a year, the annual cash flows of the OASI program, excluding interest credited to the trust fund, would add to federal deficits in every year of the coming decade by amounts 6. See Congressional Budget Office, The 2017 Long-Term Budget reaching $363 billion in 2028, CBO estimates. Even Outlook (March 2017), www.cbo.gov/publication/52480. 7.In The 2017 Long-Term Budget Outlook, CBO projected that the 5. Although the federal government is an employer, it does not pay DI trust fund would be exhausted in 2023; see www.cbo.gov/ taxes. Instead, to cover the employer’s share of the Social Security publication/52480. Recent data have shown that DI caseloads payroll tax for federal workers, it makes an intragovernmental are smaller than anticipated and tax revenues collected by the transfer from the general fund of the Treasury to the OASI and fund are greater than anticipated. Therefore, CBO has revised its DI trust funds. That transfer is included in the income line in projection of deficits in the fund, resulting in a later exhaustion Table C-3. date. APPENDIX C: TRUST FUNDS The Budget and Economic Outlook: 2018 to 2028 135 Table C-3 . Balances Projected in CBO’s Baseline for the OASI, DI, and HI Trust Funds Billions of Dollars Total Actual, 2019– 2019– 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2023 2028 OASI Trust Fund Beginning-of-Year Balance 2,797 2,820 2,802 2,789 2,764 2,714 2,634 2,521 2,375 2,191 1,972 1,711 n.a. n.a. Income (Excluding interest) 738 743 808 858 896 934 973 1,014 1,055 1,104 1,151 1,199 4,469 9,992 Expenditures -799 -843 -898 -959 -1,022 -1,089 -1,158 -1,230 -1,307 -1,386 -1,470 -1,562 -5,127 -12,082 Noninterest Deficit -61 -101 -90 -101 -126 -155 -185 -217 -252 -282 -318 -363 -658 -2,090 Interest Received 85 82 78 76 76 75 73 70 68 63 57 50 378 686 Total Deficit (-) or Surplus 24 -19 -13 -25 -51 -79 -113 -146 -184 -219 -261 -313 -280 -1,404 End-of-Year Balance 2,820 2,802 2,789 2,764 2,714 2,634 2,521 2,375 2,191 1,972 1,711 1,398 n.a. n.a.  a DI Trust Fund Beginning-of-Year Balance 46 70 94 91 77 62 46 27 6 0 0 0 n.a. n.a. Income (Excluding interest) 168 169 145 141 147 153 159 165 172 179 186 193 745 1,641 Expenditures -146 -147 -151 -157 -164 -171 -179 -187 -195 -205 -214 -220 -822 -1,844 Noninterest Deficit (-) or Surplus 22 22 -6 -16 -17 -18 -20 -22 -23 -26 -28 -27 -77 -203 Interest Received 2 2 3 3 2 2 1 * 0 0 0 0 11 11 Total Deficit (-) or Surplus 24 24 -3 -13 -15 -16 -19 -21 -23 -26 -28 -27 -67 -192 End-of-Year Balance 70 94 91 77 62 46 27 6 0 0 0 0 n.a. n.a. HI Trust Fund a Beginning-of-Year Balance 192 198 202 198 190 174 136 98 63 3 0 0 n.a. n.a. Income (Excluding interest) 305 302 319 337 354 370 386 404 423 445 469 491 1,766 3,997 Expenditures -299 -305 -331 -352 -376 -414 -429 -442 -484 -515 -547 -605 -1,902 -4,496 Noninterest Deficit (-) or Surplus 5 -3 -12 -15 -22 -44 -43 -38 -62 -71 -78 -114 -136 -499 Interest Received 7 8 7 7 7 6 5 3 2 0 0 0 32 37 Total Deficit (-) or Surplus 6 5 -5 -8 -15 -38 -38 -35 -60 -71 -78 -114 -104 -461 End-of-Year Balance 198 202 198 190 174 136 98 63 3 0 0 0 n.a. n.a. Source: Congressional Budget Office. Balances shown are invested in Government Account Series securities issued by the Treasury. * = between zero and $500 million. DI = Disability Insurance; HI = Hospital Insurance; OASI = Old-Age and Survivors Insurance; n.a. = not applicable. a. In keeping with the rules in section 257 of the Balanced Budget and Emergency Deficit Control Act of 1985, CBO’s baseline incorporates the assumption that scheduled payments will continue to be made in full after the trust fund has been exhausted, although there is no legal authority to make such payments. Because how those payments were continued would depend on future legislation, CBO shows zero rather than a cumulative negative balance in the trust fund after the exhaustion date. For the same reason, this table shows zero interest received rather than an interest payment, which implicitly reflects the assumption that future legislation would not require the funds to pay financing costs. employee retirement funds (a total of $925 billion).8 the coming decade. Those annual surpluses grow from Those accounts are primarily funded through transfers a combined total of $97 billion in 2019 to $132 bil- from federal agencies, payroll deductions from workers, lion in 2026 and then decline to $20 billion in 2028. and supplemental payments from the Treasury. Unlike More than 90 percent of the cumulative growth in the Social Security’s and Medicare’s trust funds, those retire- funds’ balances over the 10-year period is attributable to ment funds are projected to run surpluses throughout the Military Retirement Trust Fund (see Table C-1 on page 132). 8. Those civilian retirement funds include the Civil Service In CBO’s current baseline, the balance of the Military Retirement Trust Fund, the Foreign Service Retirement Trust Retirement Trust Fund increases rapidly over the coming Fund, and several smaller retirement funds. 136 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 decade, reaching nearly $1.6 trillion in 2028. That fund’s Figure C-1 . rapid growth, particularly through 2026, is because of Annual Deficits or Surpluses Projected in CBO’s additional payments the Treasury is expected to make in Baseline for the OASI, DI, and HI Trust Funds those years to increase the size of the fund to better align with projected liabilities. By contrast, balances in the Billions of Dollars civilian retirement funds are projected to grow gradually, Old-Age and Survivors Insurance Trust Fund increasing by about 1 percent annually over the next 100 decade and totaling roughly $1.0 trillion at the end of 0 2028. Total Deficit or Surplus -100 (Including interest) Medicare’s Trust Funds -200 Deficit (Excluding Payments to hospitals and for other services covered by -300 interest) Medicare are made from two trust funds. The HI trust -400 fund is used to make payments to hospitals and providers 2017 2019 2021 2023 2025 2027 of postacute–care services under Part A of the Medicare Disability Insurance Trust Fund program, and the Supplementary Medical Insurance 40 (SMI) Trust Fund is used to make payments for outpa- Total Deficit or Surplus 20 tient services (including physicians’ services) and pre- (Including interest) scription drugs under Parts B and D of Medicare.9 0 Hospital Insurance Trust Fund -20 Deficit or Surplus The HI fund, which had a balance of $198 billion at (Excluding interest) -40 the end of 2017, is the larger of the two Medicare trust 2017 2019 2021 2023 2025 2027 funds. The fund’s income is derived largely from the Hospital Insurance Trust Fund Medicare payroll tax (2.9 percent of workers’ earnings, 20 divided equally between the worker and the employer). 0 Total Deficit or Surplus -20 In 2017, those taxes accounted for 86 percent of the -40 (Including interest) $297 billion in noninterest income credited to the HI -60 Deficit (Excluding trust fund. An additional 8 percent came from part of -80 interest) the income taxes on Social Security benefits collected -100 -120 from beneficiaries with relatively high income. The -140 remaining 6 percent of noninterest income credited to 2017 2019 2021 2023 2025 2027 the HI trust fund consisted of premiums paid by bene- ficiaries; amounts recovered from overpayments to pro- Source: Congressional Budget Office. viders; fines, penalties, and other amounts collected by DI = Disability Insurance; HI = Hospital Insurance; OASI = Old-Age and the Health Care Fraud and Abuse Control program; and Survivors Insurance. other transfers and appropriations. In addition, the trust fund is credited with interest on its balances; that interest expenditures from the HI fund are projected to grow amounted to $7 billion in 2017. more rapidly—at an average annual rate of 7 percent— rising from $305 billion in 2018 to $605 billion in The fund’s noninterest income is projected to increase 2028. If current laws governing the program remained from $302 billion in 2018 to $491 billion in 2028—an in place and full benefits continued to be paid, expen- average annual increase of about 5 percent. But annual ditures would outstrip noninterest income in all years through 2028, CBO estimates. That would produce 9. Part C of Medicare (known as Medicare Advantage) specifies annual deficits that were relatively small in the first half the rules under which private health care plans can assume of the period but then rose to $62 billion in 2025, the responsibility for, and be compensated for, providing benefits year before the trust fund’s exhaustion. Even including covered under Parts A, B, and D. APPENDIX C: TRUST FUNDS The Budget and Economic Outlook: 2018 to 2028 137 interest receipts, the trust fund is projected to run defi- • The Part D portion of the SMI fund is financed cits in all years during the baseline period after 2018 (see mainly through transfers from the general fund, Table C-3 on page 135 and Figure C-1 on page 136). monthly premium payments from beneficiaries, and transfers from states (which are based on the Under current law, the balance of the HI fund would number of people in a state who would have received be exhausted in 2026. If the outlays were limited there- prescription drug coverage under Medicaid in the after to income credited to the fund, then during the absence of Part D). The basic monthly premium for remainder of 2026 they would be 14 percent below the Part D is set to cover 25.5 percent of the program’s amounts scheduled under current law, CBO estimates. estimated spending if all participants paid it. But low- income people who receive subsidies available under Supplementary Medical Insurance Trust Fund Part D are not required to pay Part D premiums, and The SMI trust fund contains two separate accounts: One most other beneficiaries pay their premiums directly pays for physicians’ services and other health care pro- to their Part D plan. As a result, receipts are projected vided on an outpatient basis under Part B of Medicare to cover less than 25.5 percent of the government’s (Medical Insurance), and another pays for prescription costs even though higher-income participants in drug benefits under Part D. Part D pay the government an income-related premium. The amount transferred from the general Unlike the HI trust fund, most of the income credited to fund is set to cover total expected spending for the SMI fund (other than interest) does not come from benefits and administrative costs net of the amounts a specified set of revenues collected from the public. transferred from states and collected from basic and Rather, most of the income to that fund comes in the income-related premiums. form of transfers from the general fund of the Treasury, which are automatically adjusted to cover the differences At the end of 2017, the SMI fund held $71 billion in between the program’s spending and specified revenues. GAS securities. Those holdings are projected to total (In 2017, for example, $307 billion was transferred from $116 billion in 2028. the general fund to the SMI fund, accounting for about three-quarters of its income.) Thus, the balance in the Highway Trust Fund SMI fund cannot be exhausted. The Highway Trust Fund comprises two accounts: the highway account, which funds construction of highways The funding mechanisms used for the two accounts and highway safety programs, and the transit account, differ slightly: which funds mass transit programs. Revenues credited to the Highway Trust Fund are derived primarily from • The Part B portion of the SMI fund is financed excise taxes on gasoline and certain other motor fuels.10 primarily through transfers from the general fund Almost all spending from the fund is controlled by lim- of the Treasury and through monthly premium itations on obligations set in appropriation acts. payments from Medicare beneficiaries. The basic monthly premium for the SMI program is set to Since 2008, the fund’s spending has exceeded its reve- cover approximately 25 percent of the program’s nues by a total of $103 billion. As a result, lawmakers spending (with adjustments to maintain a have authorized a series of transfers to the Highway contingency reserve to cover unexpected spikes in Trust Fund to avoid delaying payments to state and local spending). Beneficiaries with relatively high income governments. Most recently, in December 2015, the pay a larger premium. The amount that will be Fixing America’s Surface Transportation Act (also called transferred from the general fund equals about three the FAST Act, P.L. 114-94) transferred $70 billion to times the amount expected to be collected from the Highway Trust Fund, mostly from the general fund basic premiums minus the amount collected from the income-related premiums and fees from drug 10. The other revenues credited to the Highway Trust Fund come manufacturers. from excise taxes on trucks and trailers, on truck tires, and on the use of certain kinds of vehicles. 138 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 of the Treasury, as the fund’s balance neared exhaustion. beyond that date and that obligations from the fund Including that amount, those transfers have totaled increase at the rate of inflation, the transit account almost $144 billion. becomes exhausted in 2021, whereas the highway account is able to meet all obligations through 2021 but Spending from the fund is projected to total $55 bil- becomes exhausted in 2022.11 lion in 2018, whereas revenues and interest credited to the fund are expected to total $42 billion. The FAST 11. In keeping with the rules in section 257 of the Balanced Act extended the taxes that are credited to the trust Budget and Emergency Deficit Control Act of 1985, CBO’s baseline incorporates the assumption that payments to fulfill the fund through 2022. In CBO’s baseline, which reflects programs’ obligations will continue to be made in full after the the assumption that those expiring taxes are extended trust fund has been exhausted. APPENDI X D Appendix D CBO’s Economic Projections for 2018 to 2028 T he tables in this appendix expand on the potential output—the economy’s maximum sustainable information in Chapter 1 by showing the level of production. The projections for 2023 to 2028 Congressional Budget Office’s economic are primarily based on underlying trends for those years projections for each year from 2018 to 2028 in key variables that determine the growth of potential (by calendar year in Table D-1 and by fiscal year in output, such as the size of the labor force, the number Table D-2). CBO’s projections for 2018 to 2022 reflect of hours worked, capital investment, and productivity. the economy’s strong initial momentum at near-full For 2025 and 2026, however, CBO projects a modest employment as well as significant fiscal stimulus in those temporary slowdown in the growth of actual output that years. They also reflect a modest increase in the growth of results from fiscal policy under current law. 140 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 Table D-1 . CBO’s Economic Projections, by Calendar Year Actual, 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 Percentage Change From Year to Year Gross Domestic Product Real a 2.3 3.0 2.9 2.0 1.5 1.5 1.6 1.7 1.8 1.7 1.8 1.8 Nominal 4.1 5.0 4.9 4.1 3.7 3.7 3.8 3.9 3.9 3.8 3.9 3.9 Inflation PCE price index 1.7 1.8 1.9 2.1 2.1 2.1 2.1 2.1 2.0 2.0 2.0 2.0 Core PCE price index b 1.5 1.8 2.0 2.2 2.2 2.1 2.1 2.0 2.0 2.0 2.0 2.0 Consumer price index c 2.1 2.2 2.2 2.4 2.5 2.5 2.4 2.4 2.4 2.4 2.4 2.4 Core consumer price index b 1.8 2.1 2.4 2.6 2.6 2.5 2.4 2.4 2.4 2.3 2.3 2.4 GDP price index 1.8 1.9 2.0 2.1 2.2 2.2 2.2 2.2 2.1 2.1 2.1 2.1 Employment Cost Index d 2.6 2.9 3.4 3.6 3.6 3.4 3.3 3.2 3.2 3.1 3.1 3.1 Calendar Year Average Unemployment Rate (Percent) 4.4 3.8 3.3 3.6 4.1 4.6 4.7 4.8 4.8 4.9 4.8 4.8 Payroll Employment (Monthly change, in thousands) e 181 211 182 62 21 28 41 53 62 56 65 66 Interest Rates (Percent) Three-month Treasury bills 0.9 1.9 2.9 3.6 3.8 3.6 3.1 2.8 2.7 2.7 2.7 2.8 Ten-year Treasury notes 2.3 3.0 3.7 4.1 4.2 4.0 3.8 3.7 3.7 3.7 3.7 3.7 Tax Bases (Percentage of GDP) Wages and salaries 43.1 43.2 43.5 43.9 44.0 44.1 44.1 44.2 44.2 44.3 44.3 44.4 Domestic economic profits 8.9 9.5 9.6 9.0 8.6 8.2 8.1 8.0 8.0 8.0 8.0 8.0 Tax Bases (Billions of dollars) Wages and salaries 8,351 8,795 9,304 9,759 10,160 10,559 10,973 11,408 11,867 12,337 12,837 13,361 Domestic corporate profits f 1,732 1,931 2,045 2,004 1,975 1,970 2,006 2,078 2,161 2,233 2,325 2,410 Nominal GDP (Billions of dollars) 19,391 20,362 21,369 22,247 23,079 23,937 24,857 25,832 26,849 27,866 28,957 30,087 Source: Congressional Budget Office. GDP = gross domestic product; PCE = personal consumption expenditures. a.Real values are nominal values that have been adjusted to remove the effects of inflation. b.Excludes prices for food and energy. c.The consumer price index for all urban consumers. d.The employment cost index for wages and salaries of workers in private industries. e.Calculated as the change in payroll employment from the fourth quarter of one calendar year to the fourth quarter of the next, divided by 12 (the average monthly amount). f. Consists of domestic profits, adjusted to remove distortions in depreciation allowances caused by tax rules and to exclude the effect of inflation on the value of inventories. APPENDIX D: CBO’S ECONOMIC PROJECTIONS FOR 2018 TO 2028 The Budget and Economic Outlook: 2018 to 2028 141 Table D-2 . CBO’s Economic Projections, by Fiscal Year Actual, 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 Percentage Change From Year to Year Gross Domestic Product Real a 2.1 2.8 3.1 2.1 1.6 1.5 1.6 1.7 1.8 1.7 1.8 1.8 Nominal 3.8 4.8 5.1 4.2 3.8 3.7 3.8 3.9 4.0 3.8 3.9 3.9 Inflation PCE price index 1.7 1.8 1.9 2.1 2.1 2.1 2.1 2.1 2.0 2.0 2.0 2.0 Core PCE price index b 1.6 1.7 2.0 2.2 2.2 2.1 2.1 2.1 2.0 2.0 2.0 2.0 Consumer price index c 2.1 2.2 2.1 2.4 2.5 2.5 2.5 2.4 2.4 2.4 2.4 2.4 Core consumer price index b 2.0 2.0 2.3 2.6 2.6 2.6 2.4 2.4 2.4 2.3 2.3 2.4 GDP price index 1.7 1.9 2.0 2.1 2.2 2.2 2.2 2.2 2.1 2.1 2.1 2.1 Employment Cost Index d 2.5 2.8 3.3 3.6 3.6 3.4 3.3 3.2 3.2 3.1 3.1 3.1 Fiscal Year Average Unemployment Rate (Percent) 4.5 3.9 3.3 3.5 4.0 4.5 4.7 4.8 4.8 4.9 4.9 4.8 Payroll Employment (Monthly change, in thousands) e 181 199 206 88 24 25 38 50 60 56 64 66 Interest Rates (Percent) Three-month Treasury bills 0.7 1.6 2.7 3.5 3.8 3.7 3.3 2.8 2.7 2.7 2.7 2.8 Ten-year Treasury notes 2.3 2.8 3.5 4.0 4.2 4.1 3.8 3.7 3.7 3.7 3.7 3.7 Tax Bases (Percentage of GDP) Wages and salaries 43.1 43.1 43.4 43.8 44.0 44.1 44.1 44.2 44.2 44.3 44.3 44.4 Domestic economic profits 9.0 9.4 9.7 9.1 8.7 8.3 8.1 8.0 8.1 8.0 8.0 8.0 Tax Bases (Billions of dollars) Wages and salaries 8,257 8,663 9,179 9,653 10,061 10,457 10,868 11,297 11,751 12,218 12,709 13,228 Domestic corporate profits f 1,719 1,899 2,047 2,012 1,983 1,966 1,993 2,058 2,142 2,213 2,301 2,390 Nominal GDP (Billions of dollars) 19,178 20,103 21,136 22,034 22,872 23,716 24,621 25,583 26,595 27,608 28,677 29,803 Source: Congressional Budget Office. GDP = gross domestic product; PCE = personal consumption expenditures. a.Real values are nominal values that have been adjusted to remove the effects of inflation. b.Excludes prices for food and energy. c.The consumer price index for all urban consumers. d.The employment cost index for wages and salaries of workers in private industries. e.Calculated as the change in payroll employment from the fourth quarter of one calendar year to the fourth quarter of the next, divided by 12 (the average monthly amount). f. Consists of domestic profits, adjusted to remove distortions in depreciation allowances caused by tax rules and to exclude the effect of inflation on the value of inventories. APPENDI X E Appendix E Historical Budget Data T his appendix provides historical data on Total outlays for major categories of spending (includ- federal revenues, outlays, and the deficit or ing off-budget outlays) appear in Table E-3. Spending surplus—in forms consistent with the projec- controlled by the appropriation process is classified tions in Chapters 2, 3, and 4—for fiscal years as discretionary. Spending governed by laws other 1968 to 2017. The data, which come from the Office of than appropriation acts, such as laws that set eligibil- Management and Budget, are shown both in nominal ity requirements for certain programs, is considered dollars and as a percentage of gross domestic product. mandatory. Offsetting receipts include the government’s Some of the numbers have been revised since January contributions to retirement programs for its employees, 2016, when these tables were last published on CBO’s as well as fees, charges (such as Medicare premiums), website (www.cbo.gov/publication/51129). and receipts from the use of federally controlled land and offshore territory. Net interest consists mostly of the Federal revenues, outlays, the deficit or surplus, and debt government’s interest payments on federal debt offset by held by the public are shown in Table E-1. Revenues, its interest income. outlays, and the deficit or surplus have both on-budget and off-budget components. Social Security’s receipts Table E-4 divides discretionary spending into its and outlays were placed off-budget by the Balanced defense and nondefense components. Table E-5 Budget and Emergency Deficit Control Act of 1985 shows mandatory outlays for the three largest benefit (Public Law 99-177). For the sake of consistency, programs—Social Security, Medicare, and Medicaid— Table E-1 shows the budgetary components of Social and for other categories of mandatory spending. Income Security as off-budget before that year. The Postal Service security programs generally provide benefits to recipients was classified as off-budget by the Omnibus Budget with limited income and assets; those programs include Reconciliation Act of 1989 (P.L. 101-239). unemployment compensation, Supplemental Security Income, and the Supplemental Nutrition Assistance The major sources of federal revenues (including Program. Other federal retirement and disability off-budget revenues) are presented in Table E-2. Payroll programs provide benefits to federal civilian employees, taxes include payments by employers and employees members of the military, and veterans. The category for Social Security, Medicare, Railroad Retirement, and “Other Mandatory Programs” includes the activities unemployment insurance, as well as pension contri- of the Commodity Credit Corporation, the Medicare- butions by federal workers. Excise taxes are levied on Eligible Retiree Health Care Fund, the subsidy costs of certain products and services, such as gasoline, alcoholic federal student loan programs, and the Children’s Health beverages, and air travel. Estate and gift taxes are lev- Insurance Program. ied on assets when they are transferred. Miscellaneous receipts consist of earnings of the Federal Reserve System and income from numerous fees and charges. 144 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 Table E-1 . Revenues, Outlays, Deficits, Surpluses, and Debt Held by the Public Since 1968 Deficit (-) or Surplus Social Postal Debt Held by the Revenues Outlays On-Budget Security Service Total Publica In Billions of Dollars 1968 153.0 178.1 -27.7 2.6 n.a. -25.2 289.5 1969 186.9 183.6 -0.5 3.7 n.a. 3.2 278.1 1970 192.8 195.6 -8.7 5.9 n.a. -2.8 283.2 1971 187.1 210.2 -26.1 3.0 n.a. -23.0 303.0 1972 207.3 230.7 -26.1 3.1 -0.4 -23.4 322.4 1973 230.8 245.7 -15.2 0.5 -0.2 -14.9 340.9 1974 263.2 269.4 -7.2 1.8 -0.8 -6.1 343.7 1975 279.1 332.3 -54.1 2.0 -1.1 -53.2 394.7 1976 298.1 371.8 -69.4 -3.2 -1.1 -73.7 477.4 1977 355.6 409.2 -49.9 -3.9 0.2 -53.7 549.1 1978 399.6 458.7 -55.4 -4.3 0.5 -59.2 607.1 1979 463.3 504.0 -39.6 -2.0 0.9 -40.7 640.3 1980 517.1 590.9 -73.1 -1.1 0.4 -73.8 711.9 1981 599.3 678.2 -73.9 -5.0 -0.1 -79.0 789.4 1982 617.8 745.7 -120.6 -7.9 0.6 -128.0 924.6 1983 600.6 808.4 -207.7 0.2 -0.3 -207.8 1,137.3 1984 666.4 851.8 -185.3 0.3 -0.4 -185.4 1,307.0 1985 734.0 946.3 -221.5 9.4 -0.1 -212.3 1,507.3 1986 769.2 990.4 -237.9 16.7 * -221.2 1,740.6 1987 854.3 1,004.0 -168.4 19.6 -0.9 -149.7 1,889.8 1988 909.2 1,064.4 -192.3 38.8 -1.7 -155.2 2,051.6 1989 991.1 1,143.7 -205.4 52.4 0.3 -152.6 2,190.7 1990 1,032.0 1,253.0 -277.6 58.2 -1.6 -221.0 2,411.6 1991 1,055.0 1,324.2 -321.4 53.5 -1.3 -269.2 2,689.0 1992 1,091.2 1,381.5 -340.4 50.7 -0.7 -290.3 2,999.7 1993 1,154.3 1,409.4 -300.4 46.8 -1.4 -255.1 3,248.4 1994 1,258.6 1,461.8 -258.8 56.8 -1.1 -203.2 3,433.1 1995 1,351.8 1,515.7 -226.4 60.4 2.0 -164.0 3,604.4 1996 1,453.1 1,560.5 -174.0 66.4 0.2 -107.4 3,734.1 1997 1,579.2 1,601.1 -103.2 81.3 * -21.9 3,772.3 1998 1,721.7 1,652.5 -29.9 99.4 -0.2 69.3 3,721.1 1999 1,827.5 1,701.8 1.9 124.7 -1.0 125.6 3,632.4 2000 2,025.2 1,789.0 86.4 151.8 -2.0 236.2 3,409.8 2001 1,991.1 1,862.8 -32.4 163.0 -2.3 128.2 3,319.6 2002 1,853.1 2,010.9 -317.4 159.0 0.7 -157.8 3,540.4 2003 1,782.3 2,159.9 -538.4 155.6 5.2 -377.6 3,913.4 2004 1,880.1 2,292.8 -568.0 151.1 4.1 -412.7 4,295.5 2005 2,153.6 2,472.0 -493.6 173.5 1.8 -318.3 4,592.2 2006 2,406.9 2,655.1 -434.5 185.2 1.1 -248.2 4,829.0 2007 2,568.0 2,728.7 -342.2 186.5 -5.1 -160.7 5,035.1 2008 2,524.0 2,982.5 -641.8 185.7 -2.4 -458.6 5,803.1 2009 2,105.0 3,517.7 -1,549.7 137.3 -0.3 -1,412.7 7,544.7 2010 2,162.7 3,457.1 -1,371.4 81.7 -4.7 -1,294.4 9,018.9 2011 2,303.5 3,603.1 -1,366.8 68.0 -0.8 -1,299.6 10,128.2 2012 2,450.0 3,536.9 -1,148.9 64.6 -2.7 -1,087.0 11,281.1 2013 2,775.1 3,454.6 -719.0 37.6 1.9 -679.5 11,982.7 2014 3,021.5 3,506.1 -514.1 27.0 2.5 -484.6 12,779.9 2015 3,249.9 3,688.4 -465.8 25.6 1.7 -438.5 13,116.7 2016 3,268.0 3,852.6 -620.2 34.1 1.4 -584.7 14,167.6 2017 3,316.2 3,981.6 -714.8 47.1 2.3 -665.4 14,665.5 Continued APPENDIX E: HISTORICAL BUDGET DATA The Budget and Economic Outlook: 2018 to 2028 145 Table E-1. Continued Revenues, Outlays, Deficits, Surpluses, and Debt Held by the Public Since 1968 Deficit (-) or Surplus Social Postal Debt Held by the Revenues Outlays On-Budget Security Service Total Publica As a Percentage of Gross Domestic Product 1968 17.0 19.8 -3.1 0.3 n.a. -2.8 32.2 1969 19.0 18.7 -0.1 0.4 n.a. 0.3 28.3 1970 18.4 18.6 -0.8 0.6 n.a. -0.3 27.0 1971 16.7 18.8 -2.3 0.3 n.a. -2.1 27.1 1972 17.0 18.9 -2.1 0.3 ** -1.9 26.4 1973 17.0 18.1 -1.1 ** ** -1.1 25.1 1974 17.7 18.1 -0.5 0.1 -0.1 -0.4 23.1 1975 17.3 20.6 -3.4 0.1 -0.1 -3.3 24.5 1976 16.6 20.8 -3.9 -0.2 -0.1 -4.1 26.7 1977 17.5 20.2 -2.5 -0.2 ** -2.6 27.1 1978 17.5 20.1 -2.4 -0.2 ** -2.6 26.6 1979 18.0 19.6 -1.5 -0.1 ** -1.6 24.9 1980 18.5 21.1 -2.6 ** ** -2.6 25.5 1981 19.1 21.6 -2.4 -0.2 ** -2.5 25.2 1982 18.6 22.5 -3.6 -0.2 ** -3.9 27.9 1983 17.0 22.8 -5.9 ** ** -5.9 32.1 1984 16.9 21.5 -4.7 ** ** -4.7 33.1 1985 17.2 22.2 -5.2 0.2 ** -5.0 35.3 1986 17.0 21.8 -5.2 0.4 ** -4.9 38.4 1987 17.9 21.0 -3.5 0.4 ** -3.1 39.5 1988 17.6 20.6 -3.7 0.8 ** -3.0 39.8 1989 17.8 20.5 -3.7 0.9 ** -2.7 39.3 1990 17.4 21.2 -4.7 1.0 ** -3.7 40.8 1991 17.3 21.7 -5.3 0.9 ** -4.4 44.0 1992 17.0 21.5 -5.3 0.8 ** -4.5 46.6 1993 17.0 20.7 -4.4 0.7 ** -3.8 47.8 1994 17.5 20.3 -3.6 0.8 ** -2.8 47.7 1995 17.8 20.0 -3.0 0.8 ** -2.2 47.5 1996 18.2 19.6 -2.2 0.8 ** -1.3 46.8 1997 18.6 18.9 -1.2 1.0 ** -0.3 44.5 1998 19.2 18.5 -0.3 1.1 ** 0.8 41.6 1999 19.2 17.9 ** 1.3 ** 1.3 38.2 2000 20.0 17.6 0.9 1.5 ** 2.3 33.6 2001 18.8 17.6 -0.3 1.5 ** 1.2 31.4 2002 17.0 18.5 -2.9 1.5 ** -1.5 32.6 2003 15.7 19.1 -4.8 1.4 ** -3.3 34.5 2004 15.6 19.0 -4.7 1.3 ** -3.4 35.5 2005 16.7 19.2 -3.8 1.3 ** -2.5 35.6 2006 17.6 19.4 -3.2 1.4 ** -1.8 35.3 2007 17.9 19.1 -2.4 1.3 ** -1.1 35.2 2008 17.1 20.2 -4.4 1.3 ** -3.1 39.3 2009 14.6 24.4 -10.8 1.0 ** -9.8 52.3 2010 14.6 23.4 -9.3 0.6 ** -8.7 60.9 2011 15.0 23.4 -8.9 0.4 ** -8.5 65.9 2012 15.3 22.1 -7.2 0.4 ** -6.8 70.4 2013 16.8 20.9 -4.4 0.2 ** -4.1 72.6 2014 17.5 20.3 -3.0 0.2 ** -2.8 74.1 2015 18.1 20.5 -2.6 0.1 ** -2.4 72.9 2016 17.7 20.9 -3.4 0.2 ** -3.2 76.7 2017 17.3 20.8 -3.7 0.2 ** -3.5 76.5 Source: Office of Management and Budget. n.a. = not applicable (the Postal Service was not an independent agency until 1972); * = between -$50 million and $50 million; ** = between -0.05 percent and 0.05 percent. a. End of year. 146 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 Table E-2 . Revenues, by Major Source, Since 1968 Individual Corporate Income Payroll Income Excise Estate and Customs Miscellaneous Taxes Taxes Taxes Taxes Gift Taxes Duties Receipts Total In Billions of Dollars 1968 68.7 33.9 28.7 14.1 3.1 2.0 2.5 153.0 1969 87.2 39.0 36.7 15.2 3.5 2.3 2.9 186.9 1970 90.4 44.4 32.8 15.7 3.6 2.4 3.4 192.8 1971 86.2 47.3 26.8 16.6 3.7 2.6 3.9 187.1 1972 94.7 52.6 32.2 15.5 5.4 3.3 3.6 207.3 1973 103.2 63.1 36.2 16.3 4.9 3.2 3.9 230.8 1974 119.0 75.1 38.6 16.8 5.0 3.3 5.4 263.2 1975 122.4 84.5 40.6 16.6 4.6 3.7 6.7 279.1 1976 131.6 90.8 41.4 17.0 5.2 4.1 8.0 298.1 1977 157.6 106.5 54.9 17.5 7.3 5.2 6.5 355.6 1978 181.0 121.0 60.0 18.4 5.3 6.6 7.4 399.6 1979 217.8 138.9 65.7 18.7 5.4 7.4 9.3 463.3 1980 244.1 157.8 64.6 24.3 6.4 7.2 12.7 517.1 1981 285.9 182.7 61.1 40.8 6.8 8.1 13.8 599.3 1982 297.7 201.5 49.2 36.3 8.0 8.9 16.2 617.8 1983 288.9 209.0 37.0 35.3 6.1 8.7 15.6 600.6 1984 298.4 239.4 56.9 37.4 6.0 11.4 17.0 666.4 1985 334.5 265.2 61.3 36.0 6.4 12.1 18.5 734.0 1986 349.0 283.9 63.1 32.9 7.0 13.3 19.9 769.2 1987 392.6 303.3 83.9 32.5 7.5 15.1 19.5 854.3 1988 401.2 334.3 94.5 35.2 7.6 16.2 20.2 909.2 1989 445.7 359.4 103.3 34.4 8.7 16.3 23.2 991.1 1990 466.9 380.0 93.5 35.3 11.5 16.7 28.0 1,032.0 1991 467.8 396.0 98.1 42.4 11.1 15.9 23.6 1,055.0 1992 476.0 413.7 100.3 45.6 11.1 17.4 27.2 1,091.2 1993 509.7 428.3 117.5 48.1 12.6 18.8 19.4 1,154.3 1994 543.1 461.5 140.4 55.2 15.2 20.1 23.1 1,258.6 1995 590.2 484.5 157.0 57.5 14.8 19.3 28.5 1,351.8 1996 656.4 509.4 171.8 54.0 17.2 18.7 25.5 1,453.1 1997 737.5 539.4 182.3 56.9 19.8 17.9 25.4 1,579.2 1998 828.6 571.8 188.7 57.7 24.1 18.3 32.6 1,721.7 1999 879.5 611.8 184.7 70.4 27.8 18.3 34.9 1,827.5 2000 1,004.5 652.9 207.3 68.9 29.0 19.9 42.8 2,025.2 2001 994.3 694.0 151.1 66.2 28.4 19.4 37.7 1,991.1 2002 858.3 700.8 148.0 67.0 26.5 18.6 33.9 1,853.1 2003 793.7 713.0 131.8 67.5 22.0 19.9 34.5 1,782.3 2004 809.0 733.4 189.4 69.9 24.8 21.1 32.6 1,880.1 2005 927.2 794.1 278.3 73.1 24.8 23.4 32.7 2,153.6 2006 1,043.9 837.8 353.9 74.0 27.9 24.8 44.6 2,406.9 2007 1,163.5 869.6 370.2 65.1 26.0 26.0 47.5 2,568.0 2008 1,145.7 900.2 304.3 67.3 28.8 27.6 50.0 2,524.0 2009 915.3 890.9 138.2 62.5 23.5 22.5 52.1 2,105.0 2010 898.5 864.8 191.4 66.9 18.9 25.3 96.8 2,162.7 2011 1,091.5 818.8 181.1 72.4 7.4 29.5 102.8 2,303.5 2012 1,132.2 845.3 242.3 79.1 14.0 30.3 106.8 2,450.0 2013 1,316.4 947.8 273.5 84.0 18.9 31.8 102.6 2,775.1 2014 1,394.6 1,023.5 320.7 93.4 19.3 33.9 136.1 3,021.5 2015 1,540.8 1,065.3 343.8 98.3 19.2 35.0 147.5 3,249.9 2016 1,546.1 1,115.1 299.6 95.0 21.4 34.8 156.0 3,268.0 2017 1,587.1 1,161.9 297.0 83.8 22.8 34.6 129.0 3,316.2 Continued APPENDIX E: HISTORICAL BUDGET DATA The Budget and Economic Outlook: 2018 to 2028 147 Table E-2. Continued Revenues, by Major Source, Since 1968 Individual Corporate Income Payroll Income Excise Estate and Customs Miscellaneous Taxes Taxes Taxes Taxes Gift Taxes Duties Receipts Total As a Percentage of Gross Domestic Product 1968 7.6 3.8 3.2 1.6 0.3 0.2 0.3 17.0 1969 8.9 4.0 3.7 1.5 0.4 0.2 0.3 19.0 1970 8.6 4.2 3.1 1.5 0.3 0.2 0.3 18.4 1971 7.7 4.2 2.4 1.5 0.3 0.2 0.3 16.7 1972 7.8 4.3 2.6 1.3 0.4 0.3 0.3 17.0 1973 7.6 4.7 2.7 1.2 0.4 0.2 0.3 17.0 1974 8.0 5.1 2.6 1.1 0.3 0.2 0.4 17.7 1975 7.6 5.2 2.5 1.0 0.3 0.2 0.4 17.3 1976 7.4 5.1 2.3 0.9 0.3 0.2 0.4 16.6 1977 7.8 5.2 2.7 0.9 0.4 0.3 0.3 17.5 1978 7.9 5.3 2.6 0.8 0.2 0.3 0.3 17.5 1979 8.5 5.4 2.6 0.7 0.2 0.3 0.4 18.0 1980 8.7 5.6 2.3 0.9 0.2 0.3 0.5 18.5 1981 9.1 5.8 1.9 1.3 0.2 0.3 0.4 19.1 1982 9.0 6.1 1.5 1.1 0.2 0.3 0.5 18.6 1983 8.2 5.9 1.0 1.0 0.2 0.2 0.4 17.0 1984 7.5 6.1 1.4 0.9 0.2 0.3 0.4 16.9 1985 7.8 6.2 1.4 0.8 0.2 0.3 0.4 17.2 1986 7.7 6.3 1.4 0.7 0.2 0.3 0.4 17.0 1987 8.2 6.3 1.8 0.7 0.2 0.3 0.4 17.9 1988 7.8 6.5 1.8 0.7 0.1 0.3 0.4 17.6 1989 8.0 6.5 1.9 0.6 0.2 0.3 0.4 17.8 1990 7.9 6.4 1.6 0.6 0.2 0.3 0.5 17.4 1991 7.7 6.5 1.6 0.7 0.2 0.3 0.4 17.3 1992 7.4 6.4 1.6 0.7 0.2 0.3 0.4 17.0 1993 7.5 6.3 1.7 0.7 0.2 0.3 0.3 17.0 1994 7.5 6.4 2.0 0.8 0.2 0.3 0.3 17.5 1995 7.8 6.4 2.1 0.8 0.2 0.3 0.4 17.8 1996 8.2 6.4 2.2 0.7 0.2 0.2 0.3 18.2 1997 8.7 6.4 2.1 0.7 0.2 0.2 0.3 18.6 1998 9.3 6.4 2.1 0.6 0.3 0.2 0.4 19.2 1999 9.2 6.4 1.9 0.7 0.3 0.2 0.4 19.2 2000 9.9 6.4 2.0 0.7 0.3 0.2 0.4 20.0 2001 9.4 6.6 1.4 0.6 0.3 0.2 0.4 18.8 2002 7.9 6.4 1.4 0.6 0.2 0.2 0.3 17.0 2003 7.0 6.3 1.2 0.6 0.2 0.2 0.3 15.7 2004 6.7 6.1 1.6 0.6 0.2 0.2 0.3 15.6 2005 7.2 6.2 2.2 0.6 0.2 0.2 0.3 16.7 2006 7.6 6.1 2.6 0.5 0.2 0.2 0.3 17.6 2007 8.1 6.1 2.6 0.5 0.2 0.2 0.3 17.9 2008 7.8 6.1 2.1 0.5 0.2 0.2 0.3 17.1 2009 6.3 6.2 1.0 0.4 0.2 0.2 0.4 14.6 2010 6.1 5.8 1.3 0.5 0.1 0.2 0.7 14.6 2011 7.1 5.3 1.2 0.5 * 0.2 0.7 15.0 2012 7.1 5.3 1.5 0.5 0.1 0.2 0.7 15.3 2013 8.0 5.7 1.7 0.5 0.1 0.2 0.6 16.8 2014 8.1 5.9 1.9 0.5 0.1 0.2 0.8 17.5 2015 8.6 5.9 1.9 0.5 0.1 0.2 0.8 18.1 2016 8.4 6.0 1.6 0.5 0.1 0.2 0.8 17.7 2017 8.3 0.0 6.1 0.0 1.5 0.0 0.4 0.0 0.1 0.0 0.2 0.0 0.7 0.0 17.3 0.0 Source: Office of Management and Budget. * = between zero and 0.05 percent. 148 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 Table E-3 . Outlays, by Major Category, Since 1968 Mandatory Programmatic Offsetting Net Discretionary Outlaysa Receipts Interest Total In Billions of Dollars 1968 118.0 59.7 -10.6 11.1 178.1 1969 117.3 64.6 -11.0 12.7 183.6 1970 120.3 72.5 -11.5 14.4 195.6 1971 122.5 86.9 -14.1 14.8 210.2 1972 128.5 100.8 -14.1 15.5 230.7 1973 130.4 116.0 -18.0 17.3 245.7 1974 138.2 130.9 -21.2 21.4 269.4 1975 158.0 169.4 -18.3 23.2 332.3 1976 175.6 189.1 -19.6 26.7 371.8 1977 197.1 203.7 -21.5 29.9 409.2 1978 218.7 227.4 -22.8 35.5 458.7 1979 240.0 247.0 -25.6 42.6 504.0 1980 276.3 291.2 -29.2 52.5 590.9 1981 307.9 339.4 -37.9 68.8 678.2 1982 326.0 370.8 -36.0 85.0 745.7 1983 353.3 410.6 -45.3 89.8 808.4 1984 379.4 405.5 -44.2 111.1 851.8 1985 415.8 448.2 -47.1 129.5 946.3 1986 438.5 461.7 -45.9 136.0 990.4 1987 444.2 474.2 -52.9 138.6 1,004.0 1988 464.4 505.0 -56.8 151.8 1,064.4 1989 488.8 546.1 -60.1 169.0 1,143.7 1990 500.6 625.6 -57.5 184.3 1,253.0 1991 533.3 702.0 -105.5 194.4 1,324.2 1992 533.8 717.7 -69.3 199.3 1,381.5 1993 539.8 736.8 -65.9 198.7 1,409.4 1994 541.3 786.0 -68.5 202.9 1,461.8 1995 544.8 817.5 -78.7 232.1 1,515.7 1996 532.7 857.7 -71.0 241.1 1,560.5 1997 547.0 895.5 -85.4 244.0 1,601.1 1998 552.0 942.9 -83.5 241.1 1,652.5 1999 572.1 979.5 -79.5 229.8 1,701.8 2000 614.6 1,032.5 -81.1 222.9 1,789.0 2001 649.0 1,097.0 -89.3 206.2 1,862.8 2002 734.0 1,196.4 -90.4 170.9 2,010.9 2003 824.3 1,283.5 -101.0 153.1 2,159.9 2004 895.1 1,346.4 -108.9 160.2 2,292.8 2005 968.5 1,448.1 -128.7 184.0 2,472.0 2006 1,016.6 1,556.1 -144.3 226.6 2,655.1 2007 1,041.6 1,627.9 -177.9 237.1 2,728.7 2008 1,134.9 1,780.3 -185.4 252.8 2,982.5 2009 1,237.5 2,287.8 -194.6 186.9 3,517.7 2010 1,347.2 2,110.2 -196.5 196.2 3,457.1 2011 1,347.1 2,234.8 -208.9 230.0 3,603.1 2012 1,286.1 2,258.7 -228.3 220.4 3,536.9 2013 1,202.1 2,336.3 -304.7 220.9 3,454.6 2014 1,178.7 2,375.8 -277.3 229.0 3,506.1 2015 1,168.7 2,554.9 -258.4 223.2 3,688.4 2016 1,185.2 2,664.9 -237.6 240.0 3,852.6 2017 1,200.2 2,771.8 -253.0 262.6 3,981.6 Continued APPENDIX E: HISTORICAL BUDGET DATA The Budget and Economic Outlook: 2018 to 2028 149 Table E-3. Continued Outlays, by Major Category, Since 1968 Mandatory Programmatic Offsetting Net Discretionary Outlaysa Receipts Interest Total As a Percentage of Gross Domestic Product 1968 13.1 6.6 -1.2 1.2 19.8 1969 11.9 6.6 -1.1 1.3 18.7 1970 11.5 6.9 -1.1 1.4 18.6 1971 10.9 7.8 -1.3 1.3 18.8 1972 10.5 8.3 -1.2 1.3 18.9 1973 9.6 8.6 -1.3 1.3 18.1 1974 9.3 8.8 -1.4 1.4 18.1 1975 9.8 10.5 -1.1 1.4 20.6 1976 9.8 10.6 -1.1 1.5 20.8 1977 9.7 10.0 -1.1 1.5 20.2 1978 9.6 10.0 -1.0 1.6 20.1 1979 9.3 9.6 -1.0 1.7 19.6 1980 9.9 10.4 -1.0 1.9 21.1 1981 9.8 10.8 -1.2 2.2 21.6 1982 9.8 11.2 -1.1 2.6 22.5 1983 10.0 11.6 -1.3 2.5 22.8 1984 9.6 10.3 -1.1 2.8 21.5 1985 9.7 10.5 -1.1 3.0 22.2 1986 9.7 10.2 -1.0 3.0 21.8 1987 9.3 9.9 -1.1 2.9 21.0 1988 9.0 9.8 -1.1 2.9 20.6 1989 8.8 9.8 -1.1 3.0 20.5 1990 8.5 10.6 -1.0 3.1 21.2 1991 8.7 11.5 -1.7 3.2 21.7 1992 8.3 11.2 -1.1 3.1 21.5 1993 7.9 10.8 -1.0 2.9 20.7 1994 7.5 10.9 -1.0 2.8 20.3 1995 7.2 10.8 -1.0 3.1 20.0 1996 6.7 10.8 -0.9 3.0 19.6 1997 6.4 10.6 -1.0 2.9 18.9 1998 6.2 10.5 -0.9 2.7 18.5 1999 6.0 10.3 -0.8 2.4 17.9 2000 6.1 10.2 -0.8 2.2 17.6 2001 6.1 10.4 -0.8 2.0 17.6 2002 6.7 11.0 -0.8 1.6 18.5 2003 7.3 11.3 -0.9 1.4 19.1 2004 7.4 11.1 -0.9 1.3 19.0 2005 7.5 11.2 -1.0 1.4 19.2 2006 7.4 11.4 -1.1 1.7 19.4 2007 7.3 11.4 -1.2 1.7 19.1 2008 7.7 12.1 -1.3 1.7 20.2 2009 8.6 15.9 -1.3 1.3 24.4 2010 9.1 14.3 -1.3 1.3 23.4 2011 8.8 14.5 -1.4 1.5 23.4 2012 8.0 14.1 -1.4 1.4 22.1 2013 7.3 14.1 -1.8 1.3 20.9 2014 6.8 13.8 -1.6 1.3 20.3 2015 6.5 14.2 -1.4 1.2 20.5 2016 6.4 14.4 -1.3 1.3 20.9 2017 6.3 14.5 -1.3 1.4 20.8 Source: Office of Management and Budget. a. Excludes offsetting receipts. 150 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 Table E-4 . Discretionary Outlays Since 1968 Defense Nondefense Total In Billions of Dollars 1968 82.2 35.8 118.0 1969 82.7 34.6 117.3 1970 81.9 38.3 120.3 1971 79.0 43.5 122.5 1972 79.3 49.2 128.5 1973 77.1 53.3 130.4 1974 80.7 57.5 138.2 1975 87.6 70.4 158.0 1976 89.9 85.7 175.6 1977 97.5 99.6 197.1 1978 104.6 114.1 218.7 1979 116.8 123.2 240.0 1980 134.6 141.7 276.3 1981 158.0 149.9 307.9 1982 185.9 140.0 326.0 1983 209.9 143.4 353.3 1984 228.0 151.4 379.4 1985 253.1 162.7 415.8 1986 273.8 164.7 438.5 1987 282.5 161.6 444.2 1988 290.9 173.5 464.4 1989 304.0 184.8 488.8 1990 300.1 200.4 500.6 1991 319.7 213.6 533.3 1992 302.6 231.2 533.8 1993 292.4 247.3 539.8 1994 282.3 259.1 541.3 1995 273.6 271.2 544.8 1996 266.0 266.8 532.7 1997 271.7 275.4 547.0 1998 270.3 281.7 552.0 1999 275.5 296.7 572.1 2000 295.0 319.7 614.6 2001 306.1 343.0 649.0 2002 349.0 385.0 734.0 2003 404.9 419.4 824.3 2004 454.1 441.0 895.1 2005 493.6 474.9 968.5 2006 520.0 496.7 1,016.6 2007 547.9 493.7 1,041.6 2008 612.4 522.5 1,134.9 2009 656.7 580.8 1,237.5 2010 688.9 658.3 1,347.2 2011 699.4 647.7 1,347.1 2012 670.5 615.6 1,286.1 2013 625.8 576.4 1,202.1 2014 596.4 582.2 1,178.7 2015 583.4 585.3 1,168.7 2016 584.8 600.4 1,185.2 2017 590.2 610.0 1,200.2 Continued APPENDIX E: HISTORICAL BUDGET DATA The Budget and Economic Outlook: 2018 to 2028 151 Table E-4. Continued Discretionary Outlays Since 1968 Defense Nondefense Total As a Percentage of Gross Domestic Product 1968 9.1 4.0 13.1 1969 8.4 3.5 11.9 1970 7.8 3.7 11.5 1971 7.1 3.9 10.9 1972 6.5 4.0 10.5 1973 5.7 3.9 9.6 1974 5.4 3.9 9.3 1975 5.4 4.4 9.8 1976 5.0 4.8 9.8 1977 4.8 4.9 9.7 1978 4.6 5.0 9.6 1979 4.5 4.8 9.3 1980 4.8 5.1 9.9 1981 5.0 4.8 9.8 1982 5.6 4.2 9.8 1983 5.9 4.1 10.0 1984 5.8 3.8 9.6 1985 5.9 3.8 9.7 1986 6.0 3.6 9.7 1987 5.9 3.4 9.3 1988 5.6 3.4 9.0 1989 5.5 3.3 8.8 1990 5.1 3.4 8.5 1991 5.2 3.5 8.7 1992 4.7 3.6 8.3 1993 4.3 3.6 7.9 1994 3.9 3.6 7.5 1995 3.6 3.6 7.2 1996 3.3 3.3 6.7 1997 3.2 3.2 6.4 1998 3.0 3.1 6.2 1999 2.9 3.1 6.0 2000 2.9 3.1 6.1 2001 2.9 3.2 6.1 2002 3.2 3.5 6.7 2003 3.6 3.7 7.3 2004 3.8 3.6 7.4 2005 3.8 3.7 7.5 2006 3.8 3.6 7.4 2007 3.8 3.4 7.3 2008 4.2 3.5 7.7 2009 4.6 4.0 8.6 2010 4.7 4.4 9.1 2011 4.5 4.2 8.8 2012 4.2 3.8 8.0 2013 3.8 3.5 7.3 2014 3.5 3.4 6.8 2015 3.2 3.3 6.5 2016 3.2 3.3 6.4 2017 3.1 3.2 6.3 Source: Office of Management and Budget. 152 The Budget and Economic Outlook: 2018 to 2028 APRIL 2018 Table E-5 . Mandatory Outlays Since 1968 Other Federal Other Memorandum: Social Income Retirement and Mandatory Offsetting Major Health Care a b c Security Medicare Medicaid Security Disability Programs Receipts Total Programs (Net) In Billions of Dollars 1968 23.3 5.1 1.8 5.9 11.4 12.2 -10.6 49.1 6.2 1969 26.7 6.3 2.3 6.5 12.6 10.3 -11.0 53.6 7.7 1970 29.6 6.8 2.7 8.2 14.3 10.9 -11.5 61.0 8.6 1971 35.1 7.5 3.4 13.4 17.0 10.5 -14.1 72.8 9.6 1972 39.4 8.4 4.6 16.4 19.2 12.9 -14.1 86.7 11.6 1973 48.2 9.0 4.6 14.5 22.3 17.4 -18.0 98.0 12.2 1974 55.0 10.7 5.8 17.4 25.2 16.7 -21.2 109.7 14.8 1975 63.6 14.1 6.8 28.9 32.2 23.8 -18.3 151.1 19.1 1976 72.7 16.9 8.6 37.6 34.6 18.7 -19.6 169.5 23.6 1977 83.7 20.8 9.9 34.6 36.2 18.6 -21.5 182.2 28.5 1978 92.4 24.3 10.7 32.1 38.8 29.0 -22.8 204.6 32.5 1979 102.6 28.2 12.4 32.2 43.0 28.6 -25.6 221.4 37.9 1980 117.1 34.0 14.0 44.3 48.3 33.6 -29.2 262.1 45.0 1981 137.9 41.3 16.8 49.9 54.9 38.6 -37.9 301.6 54.8 1982 153.9 49.2 17.4 53.2 58.9 38.2 -36.0 334.8 62.7 1983 168.5 55.5 19.0 64.0 61.9 41.7 -45.3 365.2 70.2 1984 176.1 61.1 20.1 51.7 63.5 33.0 -44.2 361.3 76.1 1985 186.4 69.7 22.7 52.3 62.0 55.1 -47.1 401.1 86.7 1986 196.5 74.2 25.0 54.2 64.2 47.6 -45.9 415.8 93.4 1987 205.1 79.9 27.4 55.0 67.4 39.4 -52.9 421.2 100.8 1988 216.8 85.7 30.5 57.3 71.9 42.8 -56.8 448.2 107.4 1989 230.4 93.2 34.6 63.1 75.3 49.5 -60.1 485.9 117.3 1990 246.5 107.0 41.1 68.7 76.4 85.8 -57.5 568.1 136.9 1991 266.8 114.2 52.5 86.9 82.7 98.9 -105.5 596.5 154.6 1992 285.2 129.4 67.8 110.8 86.0 38.6 -69.3 648.4 184.0 1993 302.0 143.2 75.8 117.1 88.6 10.1 -65.9 670.9 203.7 1994 316.9 159.6 82.0 116.1 93.7 17.6 -68.5 717.5 223.9 1995 333.3 177.1 89.1 116.6 96.5 4.9 -78.7 738.8 246.0 1996 347.1 191.3 92.0 121.6 97.3 8.4 -71.0 786.7 263.3 1997 362.3 207.9 95.6 122.5 102.3 5.0 -85.4 810.1 283.0 1998 376.1 211.0 101.2 122.1 106.3 26.1 -83.5 859.3 291.5 1999 387.0 209.3 108.0 129.0 110.0 36.1 -79.5 900.0 296.3 2000 406.0 216.0 117.9 133.9 114.9 43.7 -81.1 951.4 313.3 2001 429.4 237.9 129.4 143.1 116.1 41.2 -89.3 1,007.6 347.1 2002 452.1 253.7 147.5 180.3 123.9 38.9 -90.4 1,106.0 378.9 2003 470.5 274.2 160.7 196.2 131.8 50.2 -101.0 1,182.5 410.8 2004 491.5 297.0 176.2 190.6 135.5 55.5 -108.9 1,237.5 445.7 2005 518.7 335.1 181.7 196.9 150.1 65.6 -128.7 1,319.4 481.2 2006 543.9 376.8 180.6 200.0 151.4 103.3 -144.3 1,411.8 511.0 2007 581.4 436.1 190.6 203.1 160.8 55.8 -177.9 1,450.0 567.4 2008 612.1 456.0 201.4 260.7 173.4 76.7 -185.4 1,594.9 594.1 2009 677.7 499.9 250.9 350.2 187.3 321.8 -194.6 2,093.2 683.6 2010 700.8 520.5 272.8 437.3 196.7 -17.8 -196.5 1,913.7 727.1 2011 724.9 559.6 275.0 404.0 215.2 56.1 -208.9 2,026.0 763.5 2012 767.7 551.2 250.5 353.6 211.5 124.2 -228.3 2,030.5 725.8 2013 807.8 585.2 265.4 339.5 232.9 105.5 -304.7 2,031.6 767.6 2014 844.9 599.8 301.5 310.9 244.3 74.5 -277.3 2,098.5 831.0 2015 881.9 634.1 349.8 301.0 253.9 134.2 -258.4 2,296.5 936.5 2016 910.3 692.5 368.3 303.8 270.3 119.8 -237.6 2,427.3 1,012.6 2017 939.2 702.3 374.7 293.3 267.6 194.8 -253.0 2,518.8 1,030.4 Continued APPENDIX E: HISTORICAL BUDGET DATA The Budget and Economic Outlook: 2018 to 2028 153 Table E-5. Continued Mandatory Outlays Since 1968 Other Federal Other Memorandum: Social Income Retirement and Mandatory Offsetting Major Health Care a b c Security Medicare Medicaid Security Disability Programs Receipts Total Programs (Net) As a Percentage of Gross Domestic Product 1968 2.6 0.6 0.2 0.7 1.3 1.4 -1.2 5.5 0.7 1969 2.7 0.6 0.2 0.7 1.3 1.0 -1.1 5.5 0.8 1970 2.8 0.6 0.3 0.8 1.4 1.0 -1.1 5.8 0.8 1971 3.1 0.7 0.3 1.2 1.5 0.9 -1.3 6.5 0.9 1972 3.2 0.7 0.4 1.3 1.6 1.1 -1.2 7.1 1.0 1973 3.6 0.7 0.3 1.1 1.6 1.3 -1.3 7.2 0.9 1974 3.7 0.7 0.4 1.2 1.7 1.1 -1.4 7.4 1.0 1975 3.9 0.9 0.4 1.8 2.0 1.5 -1.1 9.4 1.2 1976 4.1 0.9 0.5 2.1 1.9 1.0 -1.1 9.5 1.3 1977 4.1 1.0 0.5 1.7 1.8 0.9 -1.1 9.0 1.4 1978 4.1 1.1 0.5 1.4 1.7 1.3 -1.0 9.0 1.4 1979 4.0 1.1 0.5 1.3 1.7 1.1 -1.0 8.6 1.5 1980 4.2 1.2 0.5 1.6 1.7 1.2 -1.0 9.4 1.6 1981 4.4 1.3 0.5 1.6 1.8 1.2 -1.2 9.6 1.7 1982 4.6 1.5 0.5 1.6 1.8 1.2 -1.1 10.1 1.9 1983 4.8 1.6 0.5 1.8 1.7 1.2 -1.3 10.3 2.0 1984 4.5 1.5 0.5 1.3 1.6 0.8 -1.1 9.1 1.9 1985 4.4 1.6 0.5 1.2 1.5 1.3 -1.1 9.4 2.0 1986 4.3 1.6 0.6 1.2 1.4 1.0 -1.0 9.2 2.1 1987 4.3 1.7 0.6 1.2 1.4 0.8 -1.1 8.8 2.1 1988 4.2 1.7 0.6 1.1 1.4 0.8 -1.1 8.7 2.1 1989 4.1 1.7 0.6 1.1 1.4 0.9 -1.1 8.7 2.1 1990 4.2 1.8 0.7 1.2 1.3 1.5 -1.0 9.6 2.3 1991 4.4 1.9 0.9 1.4 1.4 1.6 -1.7 9.8 2.5 1992 4.4 2.0 1.1 1.7 1.3 0.6 -1.1 10.1 2.9 1993 4.4 2.1 1.1 1.7 1.3 0.1 -1.0 9.9 3.0 1994 4.4 2.2 1.1 1.6 1.3 0.2 -1.0 10.0 3.1 1995 4.4 2.3 1.2 1.5 1.3 0.1 -1.0 9.7 3.2 1996 4.3 2.4 1.2 1.5 1.2 0.1 -0.9 9.9 3.3 1997 4.3 2.5 1.1 1.4 1.2 0.1 -1.0 9.5 3.3 1998 4.2 2.4 1.1 1.4 1.2 0.3 -0.9 9.6 3.3 1999 4.1 2.2 1.1 1.4 1.2 0.4 -0.8 9.5 3.1 2000 4.0 2.1 1.2 1.3 1.1 0.4 -0.8 9.4 3.1 2001 4.1 2.3 1.2 1.4 1.1 0.4 -0.8 9.5 3.3 2002 4.2 2.3 1.4 1.7 1.1 0.4 -0.8 10.2 3.5 2003 4.2 2.4 1.4 1.7 1.2 0.4 -0.9 10.4 3.6 2004 4.1 2.5 1.5 1.6 1.1 0.5 -0.9 10.2 3.7 2005 4.0 2.6 1.4 1.5 1.2 0.5 -1.0 10.2 3.7 2006 4.0 2.8 1.3 1.5 1.1 0.8 -1.1 10.3 3.7 2007 4.1 3.0 1.3 1.4 1.1 0.4 -1.2 10.1 4.0 2008 4.1 3.1 1.4 1.8 1.2 0.5 -1.3 10.8 4.0 2009 4.7 3.5 1.7 2.4 1.3 2.2 -1.3 14.5 4.7 2010 4.7 3.5 1.8 3.0 1.3 -0.1 -1.3 12.9 4.9 2011 4.7 3.6 1.8 2.6 1.4 0.4 -1.4 13.2 5.0 2012 4.8 3.4 1.6 2.2 1.3 0.8 -1.4 12.7 4.5 2013 4.9 3.5 1.6 2.1 1.4 0.6 -1.8 12.3 4.6 2014 4.9 3.5 1.7 1.8 1.4 0.4 -1.6 12.2 4.8 2015 4.9 3.5 1.9 1.7 1.4 0.7 -1.4 12.8 5.2 2016 4.9 3.7 2.0 1.6 1.5 0.6 -1.3 13.1 5.5 2017 4.9 3.7 2.0 1.5 1.4 1.0 -1.3 13.1 5.4 Source: Office of Management and Budget. a. Excludes offsetting receipts. b. ncludes unemployment compensation, Supplemental Security Income, the refundable portion of the earned income and child tax credits, the I Supplemental Nutrition Assistance Program, family support, child nutrition, and foster care. c. Consists of spending for Medicare (net of premiums and other offsetting receipts), Medicaid, and the Children’s Health Insurance Program, as well as outlays to subsidize health insurance purchased through the marketplaces established under the Affordable Care Act and related spending. List of Tables and Figures Tables S-1. CBO’s Projections of Key Economic Indicators for Calendar Years 2018 to 2028 3 S-2. CBO’s Baseline Budget Projections 4 1-1. CBO’s Economic Projections for Calendar Years 2018 to 2028 10 1-2. Key Inputs in CBO’s Projections of Real Potential GDP 16 1-3. Projected Growth of Real GDP and Its Components 20 1-4. Comparison of CBO’s Current and Previous Economic Projections for Calendar Years 2017 to 2027 36 2-1. Outlays Projected in CBO’s Baseline 44 2-2. Mandatory Outlays Projected in CBO’s Baseline 48 2-3. Costs for Mandatory Programs That Continue Beyond Their Current Expiration Date in CBO’s Baseline 56 2-4. Discretionary Spending Projected in CBO’s Baseline 58 3-1. Revenues Projected in CBO’s Baseline 67 3-2. Payroll Tax Revenues Projected in CBO’s Baseline 69 3-3. Smaller Sources of Revenues Projected in CBO’s Baseline 72 4-1. CBO’s Baseline Budget Projections, by Category 81 4-2. Key Projections in CBO’s Baseline 82 4-3. CBO’s Baseline Outlay and Deficit Projections Adjusted to Exclude the Effects of Timing Shifts 83 4-4. Federal Debt Projected in CBO’s Baseline 87 4-5. Budgetary Effects of Selected Policy Alternatives Not Included in CBO’s Baseline 90 A-1. Changes in CBO’s Baseline Projections of the Deficit Since June 2017 94 B-1. Projections of Effective Marginal Federal Tax Rates 107 B-2. Economic Effects of the 2017 Tax Act 115 B-3. Contributions of the 2017 Tax Act to CBO’s Baseline Budget Projections 129 C-1. Trust Fund Balances Projected in CBO’s Baseline 132 C-2. Trust Fund Deficits or Surpluses Projected in CBO’s Baseline 133 C-3. Balances Projected in CBO’s Baseline for the OASI, DI, and HI Trust Funds 135 D-1. CBO’s Economic Projections, by Calendar Year 140 D-2. CBO’s Economic Projections, by Fiscal Year 141 E-1. Revenues, Outlays, Deficits, Surpluses, and Debt Held by the Public Since 1968 144 E-2. Revenues, by Major Source, Since 1968 146 E-3. Outlays, by Major Category, Since 1968 148 E-4. Discretionary Outlays Since 1968 150 E-5. Mandatory Outlays Since 1968 152 156 The Budget and Economic Outlook: 2018 to 2028 April 2018 Figures S-1. Growth of Real GDP and Real Potential GDP 2 S-2. Federal Debt Held by the Public 5 1-1. CBO’s Economic Forecast at a Glance 8 1-2. Economic Conditions at the End of 2017 12 1-3. Economic Effects of the 2017 Tax Act on Real GDP 13 1-4. Determinants of the Growth of Real Potential GDP 15 1-5. Growth of Real GDP and Real Potential GDP and the Size of the Output Gap 18 1-6. Real Personal Consumption Expenditures 19 1-7. Real Business Investment 21 1-8. Real Government Purchases 22 1-9. Real Residential Investment 23 1-10. Real Imports and Real Exports 25 1-11. The Labor Market 27 1-12. Inflation28 1-13. Interest Rates 30 1-14. Labor Income 31 1-15. Duration of Economic Expansions Since 1945 34 1-16. The Uncertainty of CBO’s Projections of Real GDP 35 1-17. Revisions to CBO’s Projections of the Growth of Real Potential GDP 38 1-18. Comparison of CBO’s Economic Projections With Those From the Blue Chip Survey 40 1-19. Comparison of CBO’s Economic Projections With Those by Federal Reserve Officials 41 2-1. Outlays, by Category 45 2-2. Major Changes in Projected Outlays From 2018 to 2028 47 2-3. Discretionary Nondefense Funding for Emergency Requirements 59 2-4. Discretionary Outlays, by Category 60 2-5. Discretionary Budget Authority Projected in CBO’s Baseline and Under Two Alternative Scenarios 61 3-1. Total Revenues 64 3-2. Revenues, by Major Source 66 3-3. Revenues, Tax Expenditures, and Selected Components of Spending in 2017 75 4-1. Total Deficits or Surpluses 80 4-2. Total Revenues and Outlays 84 4-3. Outlays and Revenues Projected in CBO’s Baseline, Compared With Actual Values 25 and 50 Years Ago 85 4-4. Population, by Age Group 86 B-1. Economic Effects of the 2017 Tax Act at a Glance 116 B-2. Effects of the 2017 Tax Act on Business Fixed Investment 118 B-3. Effects of the 2017 Tax Act on Investment Through Changes in Incentives 119 B-4. Effects of the 2017 Tax Act on Investment Through Crowding Out 120 B-5. Effects of the 2017 Tax Act on Net Foreign Transactions 128 C-1. Annual Deficits or Surpluses Projected in CBO’s Baseline for the OASI, DI, and HI Trust Funds 136 About This Document This volume is one of a series of reports on the state of the budget and the economy that the Congressional Budget Office issues each year. It satisfies the requirement of section 202(e) of the Congressional Budget Act of 1974 for CBO to submit to the Committees on the Budget periodic reports about fiscal policy and to provide baseline projections of the federal budget. In keeping with CBO’s mandate to provide objective, impartial analysis, this report makes no recommendations. CBO’s Panel of Economic Advisers commented on an early version of the economic forecast underlying this report. Members of the panel were Katharine Abraham, Alan Auerbach, David Autor, Olivier Blanchard, Markus Brunnermeier, Mary Daly, Steven Davis, Kathryn Dominguez, Robert Hall, Jan Hatzius, Donald Kohn, Nellie Liang, Gregory Mankiw, Emi Nakamura, Jonathan Parker, Adam Posen, James Poterba, Valerie Ramey, Brian Sack, Robert Shimer, James Stock, Justin Wolfers, and Mark Zandi. Robert Wescott attended the panel’s meeting as a guest. Although CBO’s outside advisers provided considerable assistance, they are not responsible for the contents of this report. The following pages list the CBO staff members who contributed to this report by preparing the economic, revenue, and spending projections; analyzing the recent tax legislation; writing the report; reviewing, editing, fact-checking, and publishing it; compiling the supplemental materials posted along with it on CBO’s website (www.cbo.gov/publication/53651); and providing other support. Keith Hall Director April 2018 158 THE BUDGET AND ECONOMIC OUTLOOK: 2018 TO 2028 APRIL 2018 Economic Projections The economic projections were prepared by the Macroeconomic Analysis Division, with contributions from analysts in other divisions. That work was supervised by Jeffrey Werling, Robert Arnold, John Kitchen, and Kim Kowalewski. Y. Gloria Chen Inflation, house prices Devrim Demirel Fiscal policy Michael Falkenheim Financial markets Daniel Fried Net exports, exchange rates, energy prices Edward Gamber Interest rates, monetary policy, current-quarter analysis Ronald Gecan Energy prices Mark Lasky Business investment, housing Joshua Montes (formerly of CBO) Labor markets Jeffrey Perry Financial markets John Seliski Federal, state, and local government spending and revenues Robert Shackleton Potential output, productivity Claire Sleigh Motor vehicle sector, model and data management Adam Staveski Housing, research assistance Christopher Williams Consumer spending, incomes Revenue Projections The revenue projections were prepared by the Tax Analysis Division, supervised by John McClelland, Mark Booth (formerly of CBO), Edward Harris, and Janet Holtzblatt. In addition, the staff of the Joint Committee on Taxation provided valuable assistance. Paul Burnham Retirement income Dorian Carloni Corporate income taxes Jacob Fabian Customs duties Nathaniel Frentz Federal Reserve System earnings, miscellaneous fees and fines Bilal Habib Wage distribution, refundable tax credits Peter Huether Excise taxes Shannon Mok Estate and gift taxes Cecilia Pastrone Excise taxes Kevin Perese Tax modeling Molly Saunders-Scott International taxation, business taxation Kurt Seibert Payroll taxes, depreciation, tax modeling Joshua Shakin Individual income taxes Jennifer Shand Corporate income taxes Naveen Singhal Capital gains realizations, tax modeling ABOUT THIS DOCUMENT THE BUDGET AND ECONOMIC OUTLOOK: 2018 TO 2028 159 Spending Projections The spending projections were prepared by the Budget Analysis Division, with contributions from analysts in other divisions. That work was supervised by Theresa Gullo, Leo Lex, Sam Papenfuss, Christina Hawley Anthony, Tom Bradley, Kim Cawley, Chad Chirico, Sheila Dacey, Sarah Jennings, and Adam Wilson of the Budget Analysis Division, as well as by Jessica Banthin, Alexandra Minicozzi, and David Weaver of the Health, Retirement, and Long- Term Analysis Division and Sebastien Gay of the Financial Analysis Division. Defense, International Affairs, and Veterans’ Affairs Kent Christensen Defense (projections, working capital funds, operation and maintenance, procurement, scorekeeping) Sunita D’Monte International affairs Ann Futrell Veterans’ health care and employment training services, international food assistance Raymond Hall Defense (research and development, stockpile sales, atomic energy, Navy procurement) William Ma Defense (operation and maintenance, procurement, compensation for radiation exposure and energy employees’ occupational illness, other defense programs) David Newman Defense (military construction and family housing, military activities in Afghanistan), veterans’ housing and education benefits, reservists’ education benefits David Rafferty Military retirement Dawn Sauter Regan Defense (military personnel) Matthew Schmit Military health care Logan Smith Veterans’ compensation and pensions, other benefits for disabled veterans Health Susan Yeh Beyer Health insurance coverage Alice Burns Medicaid, health insurance coverage Julia Christensen Food and Drug Administration, prescription drugs Jacob Fabian Workplace safety programs Kate Fritzsche Health insurance marketplaces, other programs Philippa Haven Medicare, Public Health Service Lori Housman Medicare, Federal Employees Health Benefits program Emily King Health Resources and Services Administration, mental health, other programs Jamease Kowalczyk Medicare Sarah Masi Health insurance marketplaces, other programs Kevin McNellis Health insurance marketplaces, other programs Eamon Molloy Health insurance coverage 160 THE BUDGET AND ECONOMIC OUTLOOK: 2018 TO 2028 APRIL 2018 Health (Continued) Andrea Noda Medicaid prescription drugs, long-term care, Public Health Service Romain Parsad Health insurance coverage Allison Percy Health insurance coverage Ezra Porter Health insurance coverage Lisa Ramirez-Branum Medicaid, health insurance coverage Lara Robillard Medicare Sarah Sajewski Medicare Robert Stewart Medicaid, Children’s Health Insurance Program, Indian Health Service Ellen Werble Prescription drugs, Public Health Service Colin Yee Medicare Rebecca Yip Medicare, prescription drugs, Public Health Service Chris Zogby Health insurance coverage Income Security and Education Tia Caldwell Child Care and Development Block Grant, refugee assistance Meredith Decker Unemployment insurance, training programs, Administration on Aging, Smithsonian Institution, arts and humanities Elizabeth Cove Delisle Housing assistance Kathleen FitzGerald Supplemental Nutrition Assistance Program and other nutrition programs Jennifer Gray Social Services Block Grant, support programs for children and families, child nutrition and other nutrition programs Justin Humphrey Student loans, higher education Wendy Kiska Pension Benefit Guaranty Corporation Leah Koestner Elementary and secondary education, Pell grants Justin Latus Supplemental Security Income Susanne Mehlman Temporary Assistance for Needy Families, Child Support Enforcement program, foster care, child care programs, Low Income Home Energy Assistance Program Noah Meyerson Old-Age and Survivors Insurance, Social Security trust funds, Pension Benefit Guaranty Corporation Emily Stern Disability Insurance ABOUT THIS DOCUMENT THE BUDGET AND ECONOMIC OUTLOOK: 2018 TO 2028 161 Natural and Physical Resources Tiffany Arthur Agriculture Megan Carroll Energy, air and water transportation Michael Falkenheim Federal Deposit Insurance Corporation Mark Grabowicz Administration of justice, Postal Service Kathleen Gramp Energy, Outer Continental Shelf receipts, spectrum auction receipts, Orderly Liquidation Fund Wendy Kiska Federal Deposit Insurance Corporation Jeff LaFave Conservation and land management, other natural resources, Federal Housing Administration and other housing credit programs James Langley Agriculture Jeffrey Perry Fannie Mae and Freddie Mac, Federal Housing Administration Matthew Pickford General government, legislative branch Sarah Puro Highways, mass transit, Amtrak, deposit insurance, credit unions Stephen Rabent Commerce, Small Business Administration, Universal Service Fund Robert Reese Community and regional development, Federal Emergency Management Agency, Bureau of Indian Affairs, administration of justice Mitchell Remy Fannie Mae and Freddie Mac, Federal Housing Administration Janani Shankaran Recreational resources, judicial branch, science and space exploration Jon Sperl Pollution control and abatement Aurora Swanson Water resources, Fannie Mae and Freddie Mac Other Areas and Functions Shane Beaulieu Computer support Barry Blom Federal pay, monthly Treasury data Joanna Capps Appropriation bills (Labor, Health and Human Services, and Education; Legislative Branch) Meredith Decker Other interest, debt limit Avi Lerner Interest on the public debt, automatic budget enforcement and sequestration, Troubled Asset Relief Program Amber Marcellino Federal civilian retirement George McArdle Appropriation bills (Military Construction and Veterans Affairs; State and Foreign Operations) 162 THE BUDGET AND ECONOMIC OUTLOOK: 2018 TO 2028 APRIL 2018 Other Areas and Functions (Continued) Dan Ready Various federal retirement programs, national income and product accounts, federal pay, historical data Justin Riordan Appropriation bills (Commerce, Justice, and Science; Financial Services and General Government) Mark Sanford Appropriation bills (Agriculture and Food and Drug Administration; Defense) Esther Steinbock Appropriation bills (Energy and Water Development; Transportation and Housing and Urban Development) J’nell Blanco Suchy Appropriation bills (Interior and Environment; Homeland Security), authorization bills Patrice Watson Database system administrator Analysis of the Effects of the 2017 Tax Act The analysis of the economic and budgetary effects of Public Law 115-97, the 2017 tax act, was prepared by the Macroeconomic Analysis Division and the Tax Analysis Division. That work was supervised by Jeffrey Werling and John McClelland. The analysis was prepared by Robert Arnold, Paul Burnham, Dorian Carloni, Devrim Demirel, Michael Falkenheim, Daniel Fried, Edward Harris, Janet Holtzblatt, John Kitchen, Mark Lasky, Sarah Masi, Shannon Mok, Joshua Montes (formerly of CBO), Cecilia Pastrone, Molly Saunders-Scott, Kurt Seibert, John Seliski, Robert Shackleton, Joshua Shakin, Jennifer Shand, and Naveen Singhal. In addition, the staff of the Joint Committee on Taxation provided valuable assistance. Writing Barry Blom wrote the summary. Christopher Williams and Kim Kowalewski wrote Chapter 1, with assistance from John Seliski. Amber Marcellino wrote Chapter 2, with assistance from Megan Carroll, Avi Lerner, and Dan Ready. Nathaniel Frentz, Cecilia Pastrone, Kurt Seibert, Joshua Shakin, and Jennifer Shand wrote Chapter 3. Barry Blom wrote Chapter 4. Amber Marcellino wrote Appendix A, with assistance from Megan Carroll and Nathaniel Frentz. John Kitchen and Molly Saunders-Scott wrote Appendix B, with assistance from Devrim Demirel, Daniel Fried, and Mark Lasky. Avi Lerner wrote Appendix C. Claire Sleigh compiled Appendix D, and Dan Ready compiled Appendix E. Reviewing, Editing, Fact-Checking, and Publishing Wendy Edelberg, Mark Hadley, Jeffrey Kling, and Robert Sunshine reviewed the report. The editing and publishing were handled by CBO’s editing and publishing group, supervised by Benjamin Plotinsky, and the agency’s communications team, supervised by Deborah Kilroe. Christine Bogusz, Christine Browne, Christian Howlett, Kate Kelly, Loretta Lettner, Bo Peery, Benjamin Plotinsky, and Elizabeth Schwinn edited the report; Casey Labrack and Jorge Salazar prepared it for publication; and Robert Dean, Annette Kalicki, Adam Russell, and Simone Thomas published it on CBO’s website. Aaron Betz, Tia Caldwell, Y. Gloria Chen, Kent Christensen, Meredith Decker, Jacob Fabian, Daniel Fried, Ann Futrell, Edward Gamber, Peter Huether, Mark Lasky, David Newman, Cecilia Pastrone, Dan Ready, Robert Reese, Robert Shackleton, Claire Sleigh, Adam Staveski, and Adam Wilson fact-checked the report. Lara Robillard coordinated the preparation of tables of baseline projections. Peter Huether, Dan Ready, Claire Sleigh, and Adam Staveski compiled data and supplemental information. Casey Labrack and Simone Thomas coordinated the presentation of those materials.