CBO Projects Automatic Stabilizers' Minimal

The Congressional Budget Office released a report on August 31, 2026, projecting the budgetary effects of automatic stabilizers over the next decade. In its forecast, these economic mechanisms are expected to decrease federal deficits by an average of just 0.2 percent of potential GDP from 2026 to 2029, before increasing them by 0.1 percent on average from 2030 to 2036.

Automatic stabilizers are components of federal revenue and spending that change automatically with the economic cycle. They provide a counter-cyclical buffer. During a downturn, income tax receipts fall and unemployment insurance outlays rise. The opposite occurs in an expansion. These changes happen without new legislation, helping to moderate economic swings by influencing private sector spending.

Projected Impact Versus Historical Role

The CBO's analysis reveals a stark contrast between the coming decade and the past half-century. For the 2026-2036 period, the office projects automatic stabilizers will decrease deficits by less than 0.05 percent of potential GDP per year on average. This is a minimal effect. Historically, from 1976 to 2025, they increased deficits by an estimated average of 0.3 percent of potential GDP annually.

The report states, "Estimating the effects of automatic stabilizers on the federal budget sheds light on the extent to which actual and projected changes in budget deficits occur automatically." This comparison highlights how the projected economic environment differs from the historical norm.

The Underlying Deficit Picture

A key finding is that the primary deficit level remains high regardless of these automatic effects. The CBO projects that deficits, after removing the impact of automatic stabilizers, will average 6.1 percent of potential GDP from 2026 to 2036. This cyclically adjusted deficit is nearly identical to the deficit figure that includes the stabilizers' effects. Both are markedly higher than the 50-year average cyclically adjusted deficit of 3.7 percent.

This indicates the structural budget shortfall is the dominant factor. Policy choices and demographic trends, not automatic economic responses, are driving the long-term deficit outlook.

Methodology and Scope

The estimates are based on CBO's baseline economic and budget projections from February 2026. That baseline assumes current tax and spending laws generally remain unchanged. The report reflects laws and economic data as of early December 2025. It presents deficits as a share of potential GDP, which is the maximum sustainable output of the economy.

The analysis provides a clear separation between automatic budgetary movements and those driven by deliberate policy. It offers a lens to understand future fiscal pressures.

The full report and underlying data are available on the CBO website.