Social Security Solvency

Social Security solvency refers to whether the program can pay the benefits it has promised over the long run, given its projected income and the reserves in its trust funds. Each year the program's Trustees publish a report projecting income, outgo, and the year each trust fund's reserves would be depleted, along with the share of scheduled benefits that continuing tax income could still cover after that point. Because those projections rest on economic and demographic assumptions that change, solvency is a moving estimate reported annually rather than a settled date.

The most important thing to get right is what "depletion" means, because it is not the program running out of money. Social Security is funded mainly by ongoing payroll taxes, which continue regardless of the reserves. When a trust fund's reserves are projected to be depleted, incoming taxes are still expected to cover most of each scheduled benefit; the shortfall is the gap between full scheduled benefits and what current income alone can pay. The Trustees express this as a percentage of scheduled benefits payable after depletion.

The 2026 Trustees Report, the current edition, gives the following projections. The Old-Age and Survivors Insurance (OASI) Trust Fund, which pays retirement and survivor benefits, is projected to pay 100 percent of scheduled benefits until the fourth quarter of 2032, after which continuing income would be sufficient to pay 78 percent of scheduled benefits. The Disability Insurance (DI) Trust Fund is projected to be able to pay full benefits through at least 2100, the end of the report's 75-year projection window. The Trustees also report a hypothetical combined OASDI figure, treating the two legally separate funds as one: on that basis the combined funds reach depletion in the third quarter of 2034, after which income would cover 83 percent of scheduled benefits. Because the funds are legally distinct, the OASI date, not the combined date, is the one that governs retirement and survivor benefits unless Congress acts to allow the funds to be used together.

The gap is a policy problem with well-mapped levers, none of which the program can pull on its own. The standard menu includes raising or removing the cap on earnings subject to the tax, raising the payroll tax rate, raising the full retirement age, changing the cost-of-living adjustment formula, and various combinations. Every option distributes cost differently across workers, employers, and beneficiaries, which is why the choice is legislative. For planning purposes, the practical takeaways are that the depletion dates are years out, that most of each benefit is projected to remain payable even under current law if nothing changes, and that the figures shift with each annual report, so any specific date and percentage should be read as of its report year.

Solvency is assessed the same way each year.

1. The Trustees project the program's income (mainly payroll taxes, plus taxes on benefits and interest) and its outgo (benefits and administration) over a 75-year window.

2. They estimate the year each trust fund's reserves would be depleted if the law does not change.

3. They calculate what percentage of scheduled benefits continuing income alone could pay after that point.

A conceptual example of the arithmetic behind the percentage. Suppose in a year after depletion the program's continuing income is enough to cover roughly four-fifths of the benefits it is scheduled to pay. The Trustees would report that scheduled benefits could be paid at about 78 percent, which is precisely the 2026 Report's OASI figure after the fourth quarter of 2032. The shortfall is the missing share, and closing it requires either more income or lower scheduled benefits, which is a decision for Congress rather than an automatic cut.