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January 31, 2012
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Discretionary outlays—the part of federal spending that lawmakers generally control through annual appropriation acts—totaled about $1.35 trillion in 2011, or close to 40 percent of federal outlays. Slightly more than half of that spending was for defense. The remainder went for a wide variety of government programs and activities, with the largest amounts spent for education, training, employment, and social services; transportation; income security (mostly housing and nutrition assistance); veterans' benefits (primarily for health care); health-related research and public health; international affairs; and the administration of justice.
Discretionary outlays declined from about 10 percent of gross domestic product (GDP) during much of the 1970s and 1980s to 6.2 percent in 1999, mostly because defense spending, as a share of GDP, declined over that period. Since then, discretionary outlays have risen relative to the size of the economy, totaling about 9 percent of GDP in 2010 and 2011, in part because of military operations in Afghanistan and Iraq and in part because of the discretionary funding provided by the American Recovery and Reinvestment Act of 2009 (ARRA, Public Law 111-5). The 2010 and 2011 figures were the highest in about 20 years.
However, lawmakers have already taken significant steps to constrain discretionary spending. Budget authority—the authority to incur financial obligations—provided for defense activities in 2011 was $3 billion (or less than 1 percent) below the amount provided the year before; budget authority for discretionary nondefense programs (plus the obligation limitations that govern spending for certain discretionary transportation programs whose budget authority is not classified as discretionary) was $39 billion (or 7 percent) below the amount provided in 2010. As a result, total discretionary funding (that is, budget authority plus obligation limitations) in 2011 was the lowest, as a share of GDP, since 2002. Nevertheless, discretionary outlays in 2011 were close to the amounts spent in 2010, the Congressional Budget Office (CBO) estimates, because of spending from funds appropriated in previous years.
In addition, the Budget Control Act of 2011 (P.L. 112-25) instituted statutory caps on discretionary appropriations for each of the fiscal years 2012 through 2021. (By contrast, in most recent years the total amount of annual appropriations—except for those designated as emergency requirements—was governed by annual funding allocations agreed to by the House of Representatives and the Senate but not enacted into law.) The new caps do not constrain spending for the war in Afghanistan or similar activities or for designated emergencies; however, if implemented as written in the act, the caps would keep other appropriations for 2012 and 2013 below the amounts provided for 2011 and would limit the growth of those appropriations to about 2 percent a year from 2014 to 2021. Compared with allowing nonwar discretionary appropriations to grow at the rate of inflation, the capped amount of discretionary budget authority would be about 4 percent lower in 2012 and 9 percent lower in 2021; as a result, budget deficits would be reduced by $778 billion between 2012 and 2021, CBO estimates (not counting the savings in interest payments resulting from lower outlays).
The future path of discretionary spending may be affected by the actions of the Joint Select Committee on Deficit Reduction. Under provisions of the Budget Control Act, legislation originating from this Committee could directly alter the path of such spending, for example, by changing the caps. Alternatively, if legislation originating from this Committee and estimated to produce at least $1.2 trillion in deficit reduction (including an allowance for interest savings) is not enacted by January 15, 2012, automatic procedures to cut spending will take effect in January 2013. CBO expects that 71 percent of the net savings from the automatic procedures would come from reductions in discretionary appropriations. If those procedures were triggered, appropriations for defense, excluding funding for overseas contingency operations (war-related funding), would be $110 billion—or 16 percent—lower by 2021 than they would be if they kept up with inflation; funding for nondefense activities would be $99 billion—or 15 percent—lower.
Moreover, for some programs, a comparison with inflation-adjusted funding understates the magnitude of reductions relative to the cost of maintaining current policies or plans. For example, implementing the Administration's multiyear defense plans would require nonwar defense spending to grow faster than the rate of inflation, and the demands for veterans' health care and Pell grants for higher education have also been growing more quickly than inflation. In contrast, the funding required for war-related activities—in Afghanistan and other countries—will be smaller than the amounts provided in recent years if the number of deployed troops is smaller and the pace of operations is diminished.
Regardless of the constraints placed on discretionary spending through the Budget Control Act or other actions taken by this Congress, subsequent Congresses will make the final decisions about future discretionary appropriations. Those decisions might or might not satisfy the constraints put in place by this Congress. Nevertheless, CBO assumes in its baseline projections that discretionary funding subject to the caps in the coming years will be equal to the amounts currently specified in law for those caps. As a result, legislation that reduced the funds available for a particular discretionary activity or achieved savings in undertaking a particular activity would only reduce projected total appropriations if the legislation also lowered the caps; without a reduction in the caps, funding for other discretionary activities would probably fill the gap created by the specific reduction or savings.
In a September 27, 2011, letter, the Honorable Chris Van Hollen requested an estimate of the portion of the federal deficit that is due to the current underutilization of capital and labor resources in the economy. The Congressional Budget Office (CBO) estimates that if those resources were not underutilized—that is, if the economy was operating at its potential level—the projected federal deficit under current law in fiscal year 2012 would be about a third lower, or roughly $630 billion instead of the $973 billion projected in CBO’s most recent baseline. That deficit would be equal to about 4.0 percent of gross domestic product (GDP), compared with the 6.2 percent deficit projected for 2012 in CBO’s baseline. If the economy was operating at its potential, the deficit would be lower because incomes and, therefore, revenues would be higher, while the rate of unemployment and, therefore, outlays for certain government programs would be lower.


The Budget Control Act of 2011 (enacted on August 2 as Public Law 112-25) made several changes to federal programs and established budget enforcement mechanisms—including caps on future discretionary appropriations—that were estimated to reduce federal budget deficits by a total of at least $2.1 trillion over the 2012–2021 period. The caps on discretionary appropriations will decrease spending (including debt-service costs) by an estimated $0.9 trillion during that period, compared with what such spending would have been if annual appropriations had grown at the rate of inflation. At least another $1.2 trillion in deficit reduction was anticipated from provisions related to a newly established Congressional Joint Select Committee on Deficit Reduction. That committee is charged with proposing legislation to trim budget deficits by at least $1.5 trillion between 2012 and 2021. However, if legislation originating from the committee and estimated to produce at least $1.2 trillion in deficit reduction (including an allowance for interest savings) is not enacted by January 15, 2012, automatic procedures for cutting both discretionary and mandatory spending will take effect. The magnitude of those cuts would depend on any shortfall in the estimated effects of such legislation relative to the $1.2 trillion amount.
The automatic reductions—if triggered—would take the form of equal cuts (in dollar terms) in defense and nondefense spending starting in fiscal year 2013. Those cuts would be achieved by lowering the caps on discretionary budget authority specified in the Budget Control Act and by automatically cancelling budgetary resources (a process known as sequestration) for some programs and activities financed by mandatory spending. The law exempts a significant portion of mandatory spending from sequestration, however. The total savings attributed to the automatic procedures would include lower debt-service costs resulting from those cuts.
The Congressional Budget Office (CBO) has estimated the changes in discretionary and mandatory spending that would occur if the automatic enforcement mechanisms were triggered because no new deficit reduction legislation was enacted. CBO's analysis can only approximate the ultimate results; the Administration's Office of Management and Budget (OMB) would be responsible for implementing any such automatic reductions on the basis of its own estimates
CBO estimates that, if no legislation originating from the deficit reduction committee was enacted, the automatic enforcement process specified in the Budget Control Act would produce the following results between 2013 and 2021:
In all, those automatic cuts would produce net budgetary savings of about $1.1 trillion over the 2013–2021 period, CBO estimates. That amount is lower than the $1.2 trillion figure for deficit reduction in the Budget Control Act for three reasons. First, because of the lag in timing between appropriations and subsequent expenditures, part of the savings from the automatic cuts in budgetary resources would occur after 2021. Second, CBO expects that some reductions—particularly those related to Medicare—would have other effects that would boost net spending (by the $31 billion mentioned above). Third, CBO estimates that the reduction in debt-service costs would be lower than the amount of such savings stipulated in the Budget Control Act.
The majority of the savings from the automatic spending reductions would stem from further cuts in discretionary spending (beyond those embodied in the new law's caps on discretionary budget authority). CBO expects that about 71 percent of the net savings from the automatic procedures would come from lowering the caps on discretionary appropriations, 13 percent would come from a net reduction in mandatory spending, and 16 percent would result from lower debt-service costs.
Of course, the Budget Control Act could produce outcomes that are very different than the figures outlined above. The Congress could enact legislation originating from the deficit reduction committee that would produce $1.2 trillion in savings through changes that differ significantly from the automatic reductions that would be required in the absence of such legislation. Or such legislation could yield some savings, but less than $1.2 trillion, so the automatic procedures would have a smaller impact than CBO has estimated here. Alternatively, the deficit reduction committee could recommend, and the Congress could enact, legislation saving significantly more than $1.2 trillion. (The Budget Control Act states that the committee's goal is to achieve at least $1.5 trillion in savings over the 2012–2021 period.)


The United States is facing profound budgetary and economic challenges. At 8.5 percent of gross domestic product (GDP), the $1.3 trillion budget deficit that the Congressional Budget Office (CBO) projects for 2011 will be the third-largest shortfall in the past 65 years (exceeded only by the deficits of the preceding two years). This year's deficit stems in part from the long shadow cast on the U.S. economy by the financial crisis and the recent recession. Although economic output began to expand again two years ago, the pace of the recovery has been slow, and the economy remains in a severe slump. Recent turmoil in financial markets in the United States and overseas threatens to prolong the slump.
CBO expects that the recovery will continue but that real (inflation-adjusted) GDP will stay well below the economy's potential—a level that corresponds to a high rate of use of labor and capital—for several years. On the basis of economic data available through early July, when the agency initially completed its economic forecast, CBO projects that real GDP will increase by 2.3 percent this year and by 2.7 percent next year. Under current law, federal tax and spending policies will impose substantial restraint on the economy in 2013, so CBO projects that economic growth will slow that year before picking up again, averaging 3.6 percent per year from 2013 through 2016.
With modest economic growth anticipated for the next few years, CBO expects employment to expand slowly. The unemployment rate is projected to fall from 9.1 percent in the second quarter of 2011 to 8.9 percent in the fourth quarter of the year and to 8.5 percent in the fourth quarter of 2012—and then to remain above 8 percent until 2014. Although inflation increased in the first half of 2011, spurred largely by a sharp rise in oil prices, CBO projects that it will diminish in the second half of the year and then stay below 2.0 percent over the next several years.
If the recovery continues as CBO expects, and if tax and spending policies unfold as specified in current law, deficits will drop markedly as a share of GDP over the next few years. Under CBO's baseline projections, which generally reflect the assumption that current law will not change, deficits fall to 6.2 percent of GDP next year and 3.2 percent in 2013, and they average 1.2 percent of GDP from 2014 to 2021. Those projections incorporate the effects of the deficit reduction measures in the recently enacted Budget Control Act of 2011; they also reflect the sharp increases in revenues that will occur when provisions of the Tax Relief, Unemployment Insurance Reauthorization, and Job Creation Act of 2010 (the 2010 tax act) expire.
In CBO's baseline, cumulative deficits total $3.5 trillion between 2012 and 2021, and by the end of 2021, debt held by the public equals 61 percent of GDP. That estimate of deficits over the next 10 years is considerably lower than the $6.7 trillion that the agency projected in March. About two-thirds of that reduction stems from the effects of enacting the Budget Control Act, which set caps on future discretionary spending and created a process for adopting additional deficit reduction measures; the remainder is the result of changes in the economic outlook and technical revisions to CBO's projections.
CBO's baseline projections incorporate the assumption that current law remains in place so they can serve as a benchmark for policymakers to use in considering possible changes to law. But those baseline projections understate the budgetary challenges facing the federal government in the coming years because changes in policy that are scheduled to take effect under current law will produce a federal tax system and spending for some federal programs and activities that differ noticeably from what people have been accustomed to.
In particular, the baseline projections in this report include the following policies specified in current law:
If some of the changes specified in current law did not occur and current policies were continued instead, much larger deficits and much greater debt could result. For example, if most of the provisions in the 2010 tax act that were originally enacted in 2001, 2003, 2009, and 2010 were extended (rather than allowed to expire on December 31, 2012, as scheduled); the alternative minimum tax was indexed for inflation; and cuts to Medicare's payment rates for physicians' services were prevented, then annual deficits from 2012 through 2021 would average 4.3 percent of GDP, compared with 1.8 percent in CBO's baseline projections. With cumulative deficits during that decade of nearly $8.5 trillion, debt held by the public would reach 82 percent of GDP by the end of 2021, higher than in any year since 1948.
Beyond the 10-year projection period, further increases in federal debt relative to the nation's output almost surely lie ahead if certain policies remain in place. The aging of the population and rising costs for health care will push federal spending up considerably as a percentage of GDP. If that higher level of spending is coupled with revenues that are held close to their average share of GDP for the past 40 years (rather than being allowed to increase, as under current law), the resulting deficits will cause federal debt to skyrocket. To prevent debt from becoming unsupportable, policymakers will have to substantially restrain the growth of spending, raise revenues significantly above their historical share of GDP, or pursue some combination of those two approaches.