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.)