Social Security is a vital source of income for millions of retired Americans. But many seniors may be surprised to learn that their benefits are subject to federal taxes—and the thresholds for taxation are quite low.
Currently, Social Security benefits are taxed if a senior’s combined income—which includes adjusted gross income, non-taxable interest, and 50% of annual Social Security benefits—exceeds $25,000 for individuals or $32,000 for joint filers. While it may seem unusual to tax retirement income, these taxes help sustain the Social Security program for future generations.
During his campaign, President Donald Trump promised, “Seniors should not pay taxes on Social Security — and they won’t.” That full elimination of Social Security taxes has not yet happened. However, in July 2025, Trump signed the One Big Beautiful Bill Act (OBBBA), which introduced new tax deductions for seniors based on income eligibility. Whether this signals a step toward ending taxes on Social Security entirely or a compromise after the election remains unclear.
Who Pays Taxes on Social Security Benefits?
Social Security is primarily funded by payroll taxes, but a portion of its revenue comes from taxing benefits paid to higher-income seniors. The number of seniors paying taxes on benefits has risen steadily, partly because the combined income thresholds haven’t been updated since 1993.
A 2024 Congressional Research Service report found that the share of Social Security benefits taxed at the federal level increased from 2.2% in 1994 to 6.6% in 2022. About half of Social Security recipients currently pay federal taxes on benefits, and projections suggest that by 2050, more than 56% will. If income thresholds remain unchanged and President Trump’s promise is not enacted, the percentage of seniors paying taxes could continue to rise.
Lawmakers intentionally left thresholds low to ensure a steady revenue stream, aiming for a long-term program that all seniors contribute to, at least partially.
The Challenges of Eliminating Social Security Taxes
Ending taxes on Social Security would help lower- and middle-income seniors but would disproportionately benefit high-income retirees. Analysis from the Penn Wharton Budget Model estimates that high-income seniors could gain up to $100,000 in lifetime welfare, while younger workers under 30 could lose about $10,000 in lifetime benefits.
Eliminating taxes on Social Security would also reduce government revenue by an estimated $1.5 trillion over 10 years and could deplete the Social Security trust funds as early as late 2032—a few years earlier than the 2035 estimate from the Social Security Trustees. Once the trust funds run dry, significant benefit cuts may become unavoidable, especially as the number of retirees grows faster than the working population.
Taxation of Social Security benefits currently contributes a modest but important portion of revenue. In 2023, these taxes added $50.7 billion to the trust funds, representing 3.8% of total income. Even small revenue reductions could worsen the program’s financial challenges.
Where Things Stand Now
Projections suggest that Social Security benefits could drop by 23% once the trust funds are depleted. Ending taxes on benefits under President Trump’s proposal could increase reductions to 33%, with potential cuts occurring as early as 2031, according to the Committee for a Responsible Federal Budget.
Given the program’s financial strain, lawmakers may be cautious about approving proposals that remove Social Security taxes entirely. William McBride, chief economist at the Tax Foundation, told CNBC that any tax cuts for seniors will face “pretty strict limits.”
In practice, the OBBBA passed in July 2025 did not eliminate Social Security taxes. Instead, it introduced a temporary $6,000 tax deduction for eligible seniors, set to expire in 2028. Whether this represents a stepping stone toward fulfilling President Trump’s campaign promise remains to be seen.
*
Original source: