USA Budget Deficit Is Projected To Hold Steady Relative To The Economy Through 2018

January 26th, 2015
in econ_news

from the Congressional Budget Office

The federal budget deficit, which has fallen sharply during the past few years, is projected to hold steady relative to the size of the economy through 2018. Beyond that point, however, the gap between spending and revenues is projected to grow, further increasing federal debt relative to the size of the economy—which is already historically high.

Follow up:

Those projections by CBO, based on the assumption that current laws governing taxes and spending will generally remain unchanged, are built upon the agency's economic forecast. According to that forecast, the economy will expand at a solid pace in 2015 and for the next few years—to the point that the gap between the nation's output and its potential (that is, maximum sustainable) output will be essentially eliminated by the end of 2017. As a result, the unemployment rate will fall a little further, and more people will be encouraged to enter or stay in the labor force. Beyond 2017, CBO projects, real (inflation-adjusted) gross domestic product (GDP) will grow at a rate that is notably less than the average growth during the 1980s and 1990s.

Rising Deficits After 2018 Are Projected to Gradually Boost Debt Relative to GDP

CBO estimates that the deficit for this fiscal year will amount to $468 billion, slightly less than the deficit in 2014 (see the table below). At 2.6 percent of GDP, this year's deficit is projected to be the smallest relative to the nation's output since 2007 but close to the 2.7 percent that deficits have averaged over the past 50 years.

CBO's Baseline Budget Projections

Although the deficits in CBO's baseline projections remain roughly stable as a percentage of GDP through 2018, they rise after that. The deficit in 2025 is projected to be $1.1 trillion, or 4.0 percent of GDP, and cumulative deficits over the 2016 - ;2025 period are projected to total $7.6 trillion. CBO expects that federal debt held by the public will amount to 74 percent of GDP at the end of this fiscal year—more than twice what it was at the end of 2007 and higher than in any year since 1950 (see figure below). By 2025, in CBO's baseline projections, federal debt rises to nearly 79 percent of GDP.

Federal Debt Held by the Public


In CBO's projections, outlays rise from a little more than 20 percent of GDP this year (which is about what federal spending has averaged over the past 50 years) to a little more than 22 percent in 2025 (see figure below). Four key factors underlie that increase:

  • The retirement of the baby-boom generation,
  • The expansion of federal subsidies for health insurance,
  • Increasing health care costs per beneficiary, and
  • Rising interest rates on federal debt.

Total Revenues and Outlays

Consequently, under current law, spending will grow faster than the economy for Social Security; the major health care programs, including Medicare, Medicaid, and subsidies offered through insurance exchanges; and net interest costs. In contrast, mandatory spending other than that for Social Security and health care, as well as both defense and nondefense discretionary spending, will shrink relative to the size of the economy. By 2019, outlays in those three categories taken together will fall below the percentage of GDP they were from 1998 through 2001, when such spending was the lowest since at least 1940 (the earliest year for which comparable data have been reported).


Revenues are projected to rise significantly by 2016, buoyed by the expiration of several provisions of law that reduced tax liabilities and by the ongoing economic expansion. In CBO's projections, based on current law, revenues equal about 18½ percent of GDP in 2016 and remain between 18 percent and 18½ percent through 2025. Revenues at that level would represent a greater share of the economy than their 50-year average of about 17½ percent of GDP but would still be less than outlays by growing amounts over the course of the decade. Revenues from the individual income tax are expected to rise relative to GDP—mostly because people's income will move into higher tax brackets as income gains outpace inflation, to which those brackets are indexed. But those increases are expected to be offset by reductions relative to GDP in revenues from the corporate income tax and other sources.

Changes From CBO's Previous Budget Projections

The deficit that CBO now estimates for 2015 is essentially the same as what the agency projected in August. CBO's estimate of outlays this year has declined by $94 billion, or about 3 percent, from the August projection because of a number of developments, including higher-than-expected receipts from auctions of licenses to use the electromagnetic spectrum for commercial purposes. But CBO's estimate of revenues has dropped almost as much—by $93 billion, also about 3 percent—mostly because of the enactment of legislation that retroactively extended a host of expired tax provisions through December 2014.

Over the 2015 - ;2024 period, deficits are now projected to total about $175 billion less than CBO's August estimate for that period. The current projections of revenues and outlays for those years are both lower than previously estimated, outlays a little more so.

The Longer-Term Outlook

When CBO last issued long-term budget projections (in July 2014), it projected that, under current law, debt would exceed 100 percent of GDP 25 years from now and would continue on an upward trajectory thereafter—a trend that could not be sustained. (The 10-year projections presented here do not materially change that outlook.) Such large and growing federal debt would have serious negative consequences, including increasing federal spending for interest payments; restraining economic growth in the long term; giving policymakers less flexibility to respond to unexpected challenges; and eventually heightening the risk of a fiscal crisis.

The Economy Will Grow at a Solid Pace Over the Next Few Years

CBO anticipates that, under current law, economic activity will expand at a solid pace in 2015 and over the next few years—reducing the amount of underused resources, or "slack," in the economy.

Economic Growth Over the Next Few Years

In CBO's estimation, increases in consumer spending, business investment, and residential investment will drive the economic expansion this year and over the next few years. The growth in those categories of spending will derive mainly from increases in hourly compensation, rising wealth, the recent decline in crude oil prices, and a step-up in the rate of household formation (as people are more willing and able to set up new homes). As measured by the change from the fourth quarter of the previous year, real GDP will grow by about 3 percent in 2015 and 2016 and by 2½ percent in 2017, CBO expects (see figure below).

Actual Values and CBO's Projections of Key Economic Indicators

The Degree of Slack in the Economy Over the Next Few Years

The difference between actual GDP and CBO's estimate of potential GDP—which is a measure of slack for the whole economy—was about 2 percent of potential GDP at the end of 2014. During the next few years, CBO expects, actual GDP will rise more rapidly than its potential, gradually eliminating that slack. For the labor market in particular, CBO anticipates that slack will dissipate by the end of 2017. By CBO's projections, increased hiring will reduce the unemployment rate from 5.7 percent in the fourth quarter of 2014 to 5.3 percent in the fourth quarter of 2017, which is close to the expected natural rate of unemployment (that is, the rate arising from all sources except fluctuations in the overall demand for goods and services). That increased hiring will also encourage more people to enter or stay in the labor force, boosting the labor force participation rate (which is the percentage of people who are working or actively looking for work).

Economic Growth in Later Years

The agency's projections beyond the next few years are not based on estimates of cyclical developments in the economy, because the agency does not attempt to predict economic fluctuations that far into the future; instead, those projections are based on estimates of underlying factors that affect the economy's productive capacity.

For 2020 through 2025, CBO projects that real GDP will grow by an average of 2.2 percent per year—a rate that matches the agency's estimate of the potential growth of the economy in those years. Potential output is expected to grow much more slowly than it did during the 1980s and 1990s primarily because the labor force is anticipated to expand more slowly than it did then. Growth in the potential labor force will be held down by the ongoing retirement of the baby boomers; by a relatively stable labor force participation rate among working-age women, after sharp increases from the 1960s to the mid-1990s; and by federal tax and spending policies set in current law.

Inflation and Interest Rates

The elimination of slack in the economy will eventually remove the downward pressure on the rate of inflation and on interest rates that has existed for the past several years. By CBO's estimates, the rate of inflation as measured by the price index for personal consumption expenditures will move up gradually to the Federal Reserve's goal of 2 percent, hitting that mark in 2017 and beyond. Interest rates on Treasury securities, which have been exceptionally low since the recession, will rise considerably in the next few years, CBO expects, but remain lower than they were, on average, in previous decades. Between 2020 and 2025, the projected interest rates on 3-month Treasury bills and 10-year Treasury notes are 3.4 percent and 4.6 percent, respectively.

Changes From CBO's Previous Economic Projections

Last August, CBO projected real GDP growth averaging 2.7 percent per year for 2014 through 2018; CBO now anticipates that real GDP growth will average 2.5 percent annually over that period. The revision mainly reflects a reduction in CBO's estimate of potential output and therefore of the current amount of slack in the economy. On the basis of the current projection of potential output, CBO now forecasts that real GDP in 2024 will be roughly 1 percent lower than the level estimated in August. In addition, the sharper-than-anticipated drop in the unemployment rate in the second half of last year caused CBO to lower its projection of that rate for the next few years.

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