Social Security Trust Fund Depletion Looms in 2033: What Benefit Cuts and Fixes Are on the Table

The Social Security program’s combined trust funds are projected to run dry in 2035, at which point incoming payroll taxes would cover only about 83% of scheduled benefits — an automatic 17% cut for roughly 68 million retirees, survivors, and disability recipients. The Old-Age and Survivors Insurance fund alone, which pays retirement and survivor benefits, hits insolvency even sooner: 2033, according to the 2024 Social Security Trustees Report released in May.

The timeline has moved up a year from the 2023 projection, driven by higher-than-expected inflation that boosted cost-of-living adjustments and wage growth that increased benefit formulas faster than payroll tax revenue could keep pace. The disability trust fund, by contrast, is now projected to remain solvent through the 75-year window after legislative changes in 2015 and 2019 reallocated payroll tax rates between the two funds.

For the average retired worker collecting $1,918 a month in 2024, a 17% across-the-board reduction would mean losing roughly $326 monthly. Low-income beneficiaries who rely on Social Security for 90% or more of their income would face the sharpest hardship. The Congressional Budget Office estimates that without legislative action, the program’s unfunded obligation over the next 75 years totals $23.2 trillion in present-value terms.

“This isn’t a surprise. The demographics have been baked in for decades,” said Maya MacGuineas, president of the Committee for a Responsible Federal Budget. “Every year Congress waits, the necessary changes get larger and the burden shifts more to younger generations.”

The last major overhaul came in 1983, when the Greenspan Commission forged a bipartisan package that gradually raised the full retirement age from 65 to 67, subjected benefits to income tax for higher earners, and accelerated payroll tax increases. Those changes extended solvency by roughly 50 years. Today’s political environment offers no comparable consensus.

Democrats generally favor revenue-side solutions. The Social Security 2100 Act, reintroduced in 2023 by Rep. John Larson (D-CT) with over 200 co-sponsors, would apply the 12.4% payroll tax to earnings above $400,000 — creating a “donut hole” between the current $168,600 cap and that threshold — and gradually raise the rate by 0.1 percentage points each year for 24 years. It would also switch to the CPI-E inflation measure, which tracks spending patterns of the elderly and typically runs slightly higher than the current CPI-W, boosting annual cost-of-living adjustments.

Republicans have coalesced around benefit modifications. The Republican Study Committee’s 2024 budget proposal would raise the full retirement age to 69 for people born in 1978 or later, index it to life expectancy thereafter, and adopt the chained CPI for COLAs — a slower-growing measure that compounds into meaningful reductions over decades. Some GOP lawmakers have also floated means-testing benefits for high-income retirees or converting a portion of payroll taxes into individually owned investment accounts, an idea that gained traction during the Bush administration but stalled after the 2008 financial crisis.

A third path — general revenue transfers — has gained quiet bipartisan currency among budget experts. The Treasury could simply credit the trust funds with non-marketable bonds financed by income taxes or borrowing, effectively treating Social Security like any other mandatory spending program. The 2020 CARES Act and 2021 American Rescue Plan used this mechanism temporarily to offset payroll tax revenue lost during the pandemic. Making it permanent would sever the program’s dedicated-funding discipline but avoid both tax increases and benefit cuts.

“The trust fund accounting is a legal fiction at this point,” said Marc Goldwein, senior vice president at CRFB. “General revenue transfers are the path of least political resistance, but they make Social Security compete with defense, Medicaid, and interest on the debt for finite resources.”

Any fix requires 60 votes in the Senate under current rules. With the House and Senate narrowly divided and the 2024 election approaching, neither party has incentive to hand the other a legislative victory on an issue that mobilizes older voters — the highest-turnout demographic. President Biden has pledged not to cut benefits or raise taxes on households earning under $400,000. Former President Trump has similarly ruled out benefit reductions. Both positions are mathematically incompatible with long-term solvency without general revenue infusions.

State-level experiments offer a preview of public sentiment. In 2024, Nebraska voters rejected a ballot measure to eliminate state taxation of Social Security benefits by a 57-43 margin after opponents argued it would blow a $100 million hole in the budget. Colorado voters approved a similar measure in 2022. The mixed results suggest appetite for protecting benefits but reluctance to accept the fiscal trade-offs.

The Social Security Administration has begun preparing operational contingency plans for 2033, including systems to implement pro-rata benefit reductions if Congress fails to act. Beneficiaries would receive notices explaining the statutory shortfall and their reduced payment amount. The agency has not publicly detailed how it would prioritize payments if revenue falls short of even the reduced obligation.

“The 2033 date isn’t a cliff — it’s a statutory trigger,” said Kathleen Romig, director of Social Security and disability policy at the Center on Budget and Policy Priorities. “Congress has never allowed the trust funds to deplete, and it almost certainly won’t in 2033 either. The question is whether they act in 2025, 2029, or December 2032 — and how much harder the math gets each year they wait.”

The next Trustees Report, due in spring 2025, will incorporate 2024 economic data and may shift the depletion date again. Meanwhile, the Social Security Administration’s actuaries continue to score legislative proposals from both parties, providing the quantitative backbone for whatever negotiation eventually materializes.