Social Security Trust Fund Countdown

until the start of the fourth quarter of 2032, when the Trustees project the Social Security retirement trust fund will run out of reserves. They project a quarter, not a day, and the date moves with each year's report; the clock is a guide to how close it is.

The retirement trust fund held $2.34 trillion at the end of 2025 and is projected to pay out about $667 million a day more than it takes in during 2026.

01What Happens When the Clock Hits Zero

Social Security is mostly pay-as-you-go: the payroll taxes of today's workers pay today's retirees. The trust fund is the savings built up when more came in than went out, mainly after the 1983 rescue law raised payroll taxes ahead of the baby boomers' retirement. The fund has shrunk every year since 2021, and faster each year: in 2025 the retirement fund took in $1.25 trillion and paid out $1.45 trillion.

When the reserves run out, the checks do not stop. Payroll taxes keep coming in, and the Trustees project they would cover about 78% of scheduled retirement and survivor benefits, falling to 62% by 2100 as the population ages. Social Security has no authority to borrow or to pay more than its fund holds. The law does not say exactly how payments would work after that: the Congressional Research Service notes that the Social Security Administration might pay reduced checks on time, or pay full checks late, as money came in. Either way, beneficiaries as a group would get about 22% less than scheduled unless Congress acts first.

That is why two dates are quoted. The retirement fund alone runs dry in the fourth quarter of 2032. The combined date, third quarter of 2034, assumes Congress lets the retirement fund draw on the disability fund, which is in better shape; the law does not allow that today, though Congress has moved money between the two funds before, most recently in 2015. The Medicare hospital fund, which pays for hospital stays under Part A, runs out in the second quarter of 2033, after which it could pay 89% of costs.

02Your Check on Depletion Day

An illustration, not a forecast of your own check: it applies the share of scheduled benefits the Trustees project incoming taxes could pay in the year the fund runs out, spread evenly across every check. Put in your monthly benefit, or the estimate on your my Social Security statement, and your birth year.

On a $2,000 monthly check, a 22% cut is $440 a month, or $5,280 a year.

Amounts in today's dollars. The law does not say how a shortfall would be handled, so an even cut to every check is an illustration of the funding gap, not a set rule. Any cut would apply to the benefit you are scheduled to get at the time, after cost-of-living raises. The share payable keeps falling after the first year, to 62% by 2100 for the retirement fund (65% for the combined funds). Disability benefits are paid from their own fund, which the Trustees do not project to run out before 2100.

03The Money Left

The retirement trust fund's reserves at the end of each year, in the dollars of the time. The 1983 law built them up for three decades; they peaked at $2.82 trillion in 2017 and are now falling faster each year.

Retirement (OASI) trust fund only, in billions of dollars of each year. "Coming in" counts payroll taxes, income tax on benefits and interest on the fund's Treasury bonds. The figure in the box above moves along the Trustees' projected path between these year-end figures; it is an estimate, not a daily Treasury count.

04The Moving Target

The projected run-out year of the combined funds in every Trustees Report since 1985. The date has moved with the economy, immigration, birth rates and the laws Congress passed, ranging from 2029 to 2051. In every report since 2012 it has stayed between 2033 and 2035, despite yearly revisions.

Year of the report along the bottom; projected run-out year of the combined retirement and disability funds up the side, under the intermediate assumptions. The 1983 and 1984 reports projected no run-out within 75 years.

05The Trust Funds and the Combined Projection

The combined row is not a separate fund: it shows how long the retirement and disability funds would last if Congress let them share their reserves. At the end of 2025, 62.3 million people received retirement and survivor benefits and 8.2 million disability benefits; 184.7 million people paid Social Security payroll taxes. Medicare Parts B and D are paid from a fourth fund, Supplementary Medical Insurance, that cannot run out, because general revenue covers whatever premiums do not.

06What It Would Take to Fix It

The Trustees put the 75-year shortfall at 4.42% of taxable payroll. In dollars, it is a $29.3 trillion shortfall over the next 75 years, measured in present value (future costs minus future income, discounted to today, less the reserves on hand). Any fix is some mix of more money in and less money out. Each of these closes the gap on its own:

Waiting costs more because fewer years and fewer people are left to share the change. The pressure comes from the ratio of workers to retirees: about 2.6 workers paid in for every person drawing benefits in 2025, and the Trustees project about 1.9 by 2075. The ideas most often put forward include raising or removing the cap on wages subject to the payroll tax, raising the full retirement age, slowing benefit growth for higher earners, changing how cost-of-living raises are figured and investing part of the fund in stocks. Each would shift the date by a different amount; none has passed.

Why 4.25 points and not 4.42: the Trustees' deficit figure includes ending the 75 years with a year's cost in reserve, while the tax increase is the amount that just gets the fund through the period with nothing left over. The payroll tax and all-benefit figures are from the 2026 Trustees Report; the new-retirees and wait-until-depletion figures are the Committee for a Responsible Federal Budget's, from the same report.

For your own numbers: Social Security Calculator · Retirement Runway Calculator · Medicare IRMAA Calculator

07Frequently Asked Questions

08Sources

• Social Security Administration: A Summary of the 2026 Annual Reports (Status of the Social Security and Medicare Programs)
• 2026 OASDI Trustees Report: short-range estimates, trust fund operations by year
• 2026 OASDI Trustees Report: long-range estimates (payroll tax and benefit changes needed)
• 2026 OASDI Trustees Report: projected depletion year in each report since 1983
• Social Security Administration: OASI trust fund operations since 1937
• Congressional Research Service: Social Security: What Would Happen If the Trust Funds Ran Out?
• Committee for a Responsible Federal Budget: Analysis of the 2026 Social Security Trustees' Report

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