How Social Security Contributes to Debt and Deficits?
The Social Security Trustees released their annual report on June 9, offering the clearest picture yet of the program’s financial outlook—and its growing impact on the federal budget. Social Security remains the largest single federal program, with costs reaching $1.7 trillion in 2026, or about 22% of all federal spending. Its size alone makes it central to the nation’s fiscal trajectory, but the new report underscores how the program’s trust fund structure and widening cash‑flow deficits are adding increasing pressure to the federal debt.
How the Trust Funds Work—and Why They Matter Now
Social Security is financed through two trust funds:
- Old‑Age and Survivors Insurance (OASI)
- Disability Insurance (DI)
Payroll taxes and other dedicated revenues flow into these funds and are used to pay benefits. The Social Security payroll tax is 6.2% on employee wages, with employers paying an additional 6.2%, for a total of 12.4% on earnings up to $184,500. (A separate 1.45% payroll tax—paid by both the employee and employer—funds Medicare’s Hospital Insurance Trust Fund.) The DI fund remains stable and solvent for the long term, but the new Trustees Report again confirms that the much larger OASI fund is projected to deplete its reserves in 2032, triggering an automatic 22% across‑the‑board benefit cut unless Congress acts.
A Pay‑As‑You‑Go System Under Strain
The report reaffirms that Social Security is fundamentally a pay‑as‑you‑go program: today’s workers fund today’s beneficiaries. From 1984 to 2009, the program ran cash-flow surpluses, which were exchanged for non-marketable US government obligations—IOUs the federal government is legally obligated to repay. But since 2010, Social Security has run persistent cash‑flow deficits. To pay full benefits, the Treasury has already borrowed over $1 trillion to redeem trust fund “bonds” or the IOUs issued between 2010 and 2024.
What the New Report Shows About Future Deficits
The Trustees project that covering Social Security’s annual shortfalls will require $228 billion in FY 2026 growing to $432 billion in FY 2032 (see table below). Over the period FY 2026 to FY 2032 Social Security will require a total of more than $2.3 trillion in additional Treasury transfers (see table below). Broader federal budget projections suggest that roughly 15% of all new borrowing through 2032 will be needed just to keep Social Security benefits fully funded under current law.
Once the OASI trust fund is depleted, the program will no longer have legal authority to borrow to maintain full benefits. Revenues alone would cover only 78% of scheduled payments—resulting in the estimated 22% cut for all beneficiaries, regardless of income or need.
| Operations of the OASI Trust Fund FY 2026-2035 |
| [Dollar amounts in billions] |
| Fiscal year |
Income |
Cost |
Shortfall |
Reserves at end of year |
| 2026 |
1,276.80 |
1,504.60 |
-227.9 |
2,173.30 |
| 2027 |
1,313.80 |
1,596.90 |
-283.1 |
1,890.20 |
| 2028 |
1,388.30 |
1,688.20 |
-299.9 |
1,590.30 |
| 2029 |
1,446.40 |
1,780.10 |
-333.7 |
1,256.60 |
| 2030 |
1,508.90 |
1,873.00 |
-364.1 |
892.4 |
| 2031 |
1,570.20 |
1,966.70 |
-396.5 |
495.9 |
| 2032 |
1,629.10 |
2,060.80 |
-431.7 |
64.2 |
| 2033* |
1,710.10 |
2,155.10 |
-445.0 |
0 |
| 2034* |
1,777.00 |
2,249.80 |
-472.8 |
0 |
| 2035* |
1,853.40 |
2,345.40 |
-492.0 |
0 |
| Source: Table VI.C4, The 2026 Annual Report of the Board of Trustees of the Federal Old-Age and Survivors Insurance and Federal Disability Insurance Trust Fund |
| * The OASI Trust Fund reserves become depleted in the first quarter of fiscal year 2033 under the intermediate-cost assumptions. The rows showing estimates for 2033, 2034 and 2035 are for information only, showing a rough estimate of the shortfall if the program were to continue on its current trajectory. However, certain trust fund operations items are not well-defined under current law once the trust fund is depleted. In addition, (1) after 2033, scheduled benefits (in the cost column) could not be paid in full on a timely basis, and actual amounts paid would be less than the scheduled benefits shown in this table; and (2) income from taxation of benefits would be lower than the amounts shown in the table, which are the amounts that would be assessed on scheduled benefits under current law. |
Why This Matters for Fiscal Sustainability
This year’s Trustees Report reinforces a central reality: Social Security’s growing mismatch between dedicated revenues and promised benefits is placing increasing strain on the federal budget. Because the trust fund’s past surpluses were IOUs, the federal government must now borrow to cover these obligations plus cover on-going deficit spending.
Addressing the social security trust fund depletion in a coherent way that preserves the integrity of the trust fund is essential not only to protect future retirees from abrupt benefit cuts but is also to ensure the long‑term fiscal stability of the nation.
