Social Security's Trust Fund Could Run Out by 2031. What That Means for You.

The search volume for "social security trust fund" is up 300% in the past 24 hours. That's not an accident — news broke recently that the Congressional Budget Office moved up its depletion estimate for Social Security's main trust fund to 2031. That's two years earlier than the previously projected 2033 and three years earlier than estimates from just a few years ago.

If the trust fund runs dry and Congress hasn't acted, Social Security would only be able to pay out what it collects in payroll taxes in real time — resulting in an automatic, across-the-board benefit cut of approximately 24%.

This is a real issue. It's also a more complicated one than the panicked headlines suggest. Here's what the numbers actually say and how to think about it.

What Is the Social Security Trust Fund?

Social Security runs on two trust funds:

Old-Age and Survivors Insurance (OASI) Trust Fund — covers retirement benefits and survivor benefits
Disability Insurance (DI) Trust Fund — covers disability payments

For decades, Social Security collected more in payroll taxes than it paid out. The surplus went into the trust funds, which are invested in special-issue U.S. Treasury bonds. The trust funds grew steadily.

Starting in the early 2010s, as Baby Boomers began retiring in large numbers, Social Security began paying out more than it collected. It started drawing down the trust fund reserves. The CBO's projection tracks how long those reserves last before they hit zero.

Zero doesn't mean Social Security stops existing. It means the program can only pay what comes in from payroll taxes each year. In 2031 or whenever depletion occurs, that's enough to cover roughly 76 cents of every dollar of promised benefits — hence the 24% cut figure.

Why Is the Depletion Date Moving Up?

Several factors have accelerated the timeline.

Legislation has added costs without funding. The Social Security Fairness Act (SSFA), signed by President Biden, expanded benefits for certain public-sector workers — teachers, firefighters, police officers — who had previously received reduced Social Security benefits alongside their pension income. The change increased monthly payments for roughly 3.2 million people. Meaningful for recipients, meaningful cost for the trust fund.

The One Big Beautiful Bill (OBBB), signed under the Trump administration, reduced the taxability of Social Security benefits for older Americans with income below a threshold. That sounds good for recipients, but it reduces tax revenue flowing back into the Social Security system — accelerating the insolvency timeline.

Inflation elevated benefit payments. Cost-of-living adjustments (COLAs) in 2022, 2023, and 2024 were the largest in 40 years, tracking the inflation spike of that period. Higher payouts mean faster depletion.

Lower birth rates mean fewer workers. The worker-to-beneficiary ratio continues to decline. In 1960, roughly five workers supported each retiree. Today, it's closer to 2.7. By 2035, projections show it falling further.

Who Gets Hurt Most?

A 24% benefit cut wouldn't hit everyone equally.

Retirees who depend entirely on Social Security would be hit hardest. Approximately 40% of Americans over 65 rely on Social Security for 90% or more of their income. A nearly quarter reduction in those payments would be a genuine crisis for that population — not a line item adjustment.

Lower-income retirees face the sharpest impact. Wealthier retirees who have 401(k)s, IRAs, investment accounts, and other income streams can absorb a benefit reduction more easily. Retirees with few other assets cannot.

People who are 50 to 65 today face the most uncertainty. If you're 55 right now, you'll be approaching or entering retirement right around the projected depletion window. You have less time to adjust your savings strategy than younger workers, but you're not yet collecting and can still make meaningful changes.

People who are 35 and under have more time and more optionality. If you're 35, the reform debate will almost certainly be resolved before you reach full retirement age — Congress has never allowed benefits to actually be cut. But the outcome of that resolution might look different from current promises.

Will Congress Actually Let This Happen?

Historically, no. Congress has intervened every time Social Security faced a genuine funding crisis. The most notable example is 1983, when a bipartisan commission led by Alan Greenspan implemented reforms that included a phased increase in the full retirement age, higher payroll taxes, and taxation of benefits for higher earners. The fix extended the program's solvency by decades.

Politicians on both sides understand that cutting Social Security benefits is one of the most politically toxic actions in American government. Seniors vote at higher rates than any other age group. No Congress wants to explain an automatic 24% cut.

That said, "won't cut benefits" doesn't mean the problem gets resolved cleanly. The options are all unpleasant:

Raise the payroll tax cap. Currently, Social Security payroll taxes only apply to wages up to about $176,000. Applying the tax to all wages would close much of the funding gap.
Increase the payroll tax rate. Currently 12.4%, split between employer and employee. Raising it by 1 to 2 percentage points would significantly extend solvency.
Raise the full retirement age. Currently 67 for people born after 1960. Pushing it to 68 or 69 reduces the years of benefit payout.
Reduce benefits for higher earners. Progressive benefit reductions above certain income thresholds.
Some combination of the above.

What Congress eventually passes will shape retirement planning for everyone under 60. The uncertainty is real. The outcome — some form of fix — is the historical expectation.

How to Plan Around This Uncertainty

Whether or not you believe Congress will act, there are concrete things you can do now to reduce your dependence on Social Security hitting its projected payout.

Max out tax-advantaged retirement accounts. The 401(k) contribution limit for 2026 is $23,500 ($31,000 if you're 50 or older with catch-up contributions). Every dollar in a 401(k) or Roth IRA is a dollar that doesn't depend on Social Security's solvency. For a deeper look at how Roth IRAs work, see our Roth IRA guide for beginners.

Build a diversified income stream. Rental income, dividend-paying stocks, a side business, or a part-time consulting arrangement in retirement all reduce the impact of any benefit reduction. Social Security was designed as a supplement, not a complete retirement plan. Treating it that way in your planning is prudent.

Delay claiming if you can. For every year you delay claiming Social Security past full retirement age, your monthly benefit increases by 8%. If you claim at 70 instead of 67, your benefit is 24% higher — which creates a useful buffer even against a 24% across-the-board cut. The two numbers partially offset each other.

Run the math on your projected benefit. Create a free account at ssa.gov and look at your estimated benefit at 62, 67, and 70. Then model what 76% of that number looks like — that's your stress-test scenario. If you can build a retirement plan where 76% of your estimated Social Security benefit is supplementary income rather than essential income, you've insulated yourself from the worst-case outcome.

Don't panic-optimize. The uncertainty around Social Security is real, but it's a known risk that can be planned around. Withdrawing your entire retirement savings to buy hard assets because Social Security might be cut is the kind of overreaction that creates new problems. The goal is to reduce dependence on any single income source — not to eliminate Social Security from your planning entirely.

The Bigger Picture

The Social Security trust fund situation reflects a demographic math problem that's been visible for decades. The solutions are available, the political will to implement them is what's uncertain, and the window to act is narrowing.

The most productive response for an individual saver is the same answer it's always been: build as much of your retirement income as possible through assets you control directly. A 401(k) and Roth IRA that you've maximized throughout your career don't care what Congress does with the payroll tax cap.

For a framework on how much of your income should go toward retirement savings, the 50/30/20 budget rule remains the most practical starting point. The "20%" bucket is where Social Security uncertainty gets addressed — by making it a smaller percentage of what you need, and a larger percentage of what you've already built.

Frequently Asked Questions

Will Social Security really run out of money in 2031?

The trust fund reserves could be depleted by 2031 under CBO projections if nothing changes. That doesn't mean Social Security disappears — it means the program would only pay what it collects in taxes, reducing benefits by approximately 24%. Congress has historically acted before allowing automatic cuts.

How much would Social Security benefits be cut?

Under current projections, if the trust fund depletes in 2031, an automatic cut of approximately 24% would apply to all benefits. This is the cut that would happen absent congressional action.

Who is most affected by Social Security funding problems?

Retirees who depend on Social Security as their primary or sole income source face the greatest risk. People with diversified retirement savings are less exposed.

What can I do to protect myself?

Maximize contributions to 401(k) and Roth IRA accounts. Delay Social Security claiming if possible. Build income sources that don't depend on Social Security. Check your estimated benefit at ssa.gov and model scenarios.

Is Social Security going broke?

"Going broke" overstates it. Social Security's funding gap is a real structural problem, but the program continues to collect payroll taxes indefinitely. The issue is that tax revenue alone is insufficient to pay 100% of promised benefits after trust fund depletion. The fix requires legislative action — raising taxes, reducing benefits, or both.

For a deeper look at how to build retirement income outside of Social Security, our Roth IRA beginners guide covers how to get started. For protecting your finances in an uncertain environment, see our recession-proofing guide for 2026.