The One Big Beautiful Bill Act, signed July 4, 2025, affects Social Security by cutting the federal income tax most retirees owe on their benefits, not by raising the benefits themselves.1Congress.gov. H.R.1 – 119th Congress: An Act to Provide For It does this through a new deduction for people 65 and older. The White House estimates 88% of seniors will owe nothing on their Social Security income under the new rules.2The White House. No Tax on Social Security is a Reality in the One Big Beautiful Bill Your monthly check does not go up. The formula that produces it does not change. What changes is how much of that check the IRS gets to keep.
The New Senior Deduction
Seniors 65 and older get a new deduction worth up to $6,000, available to single filers earning below $75,000 and married couples filing jointly below $150,000.3Congressman Daniel Webster. One Big Beautiful Bill For most retirees, that deduction is enough to pull their taxable income below the point where Social Security benefits start getting taxed.
The mechanism is worth understanding, because Congress did not repeal the tax on Social Security benefits. Section 86 of the Internal Revenue Code, which makes up to 85% of benefits taxable once your income crosses certain thresholds, is still on the books. The law works by shrinking the income you report, so most households now sit under those thresholds instead of above them.
The average retired worker receives about $2,071 per month as of January 2026, or roughly $24,850 per year.4Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet A retiree with only Social Security income was already below the taxation threshold. What the new deduction handles is the middle-income case: retirees whose pensions, part-time earnings, or retirement account withdrawals used to push their benefits into the taxable zone. For a married couple where both spouses collect roughly average benefits, the combined deductions cover their taxable Social Security income entirely.
Who Still Owes Tax on Benefits
The 12% of seniors who still owe tax on their Social Security tend to fall into a few groups.
If your income exceeds $75,000 single or $150,000 joint, the new deduction is unavailable and the old rules apply unchanged: up to 85% of your benefits remain potentially taxable. Retirees with large pension payouts, sizeable required minimum distributions, or substantial investment income can also land above the Section 86 thresholds even after claiming the deduction.
Married couples who file separately and lived together at any point in the year are still in the worst position. Their base amount under Section 86 is zero, meaning nearly all their benefits remain potentially taxable, and the deduction may not be enough to overcome that.5Office of the Law Revision Counsel. 26 USC 86 – Social Security and Tier 1 Railroad Retirement Benefits If you file separately, that decision is worth another look.
What the Law Does Not Change
This is a tax law, not a benefits law. Several things retirees ask about stayed exactly the same:
- Your monthly benefit amount. It’s still calculated from your earnings history and the age you claimed.
- The annual cost-of-living adjustment, still tied to the Consumer Price Index for Urban Wage Earners and Clerical Workers.6Social Security Administration. Latest Cost-of-Living Adjustment
- The payroll tax structure. The taxable earnings cap for 2026 is $184,500, and earnings above that stay exempt from the 6.2% Social Security tax.7Social Security Administration. Contribution and Benefit Base
- Benefit eligibility. You still need 40 work credits, and the primary insurance amount formula is unchanged.
A separate bill, the Social Security Expansion Act, would raise monthly benefits by $200, change the COLA formula, and extend payroll taxes to earnings above $250,000.8GovTrack.us. S. 770: Social Security Expansion Act It has not passed and is not part of the Big Beautiful Bill.
The Cost to the Trust Fund
The tax revenue seniors pay on their Social Security benefits flows back into the program. In 2024, taxation of benefits contributed $55.1 billion to Social Security, about 3.9% of total program income.9Social Security Administration. Trust Fund Financial Operations in 2024 Cutting that revenue has consequences.
Before this law, trustees projected the Old-Age and Survivors Insurance trust fund could pay 100% of scheduled benefits until 2033, after which incoming payroll taxes would cover about 77 cents on the dollar.10Social Security Administration. Trustees Report Summary Social Security’s actuaries estimate the Big Beautiful Bill will drain roughly $170 billion from the trust fund between 2025 and 2034, moving the projected insolvency date from early 2033 to late 2032.11Tax Policy Center. How The 2025 Budget Act Accelerates Social Security’s Insolvency
The law includes no offsetting revenue to replace what’s lost. Seniors get a real tax cut now; the program’s runway gets about a year shorter. What Congress does about that gap before 2032 is a separate and unresolved question.
Related Deductions If You Still Work
Two other provisions in the same law may matter to retirees who work part-time. Both run for 2025 through 2028, then expire.
The “no tax on tips” provision lets employees and self-employed workers in tipped occupations deduct qualified tips up to $25,000 per year. The “no tax on overtime” provision lets hourly workers deduct the premium portion of overtime pay (the extra half of “time and a half”), up to $12,500 per year or $25,000 for joint filers. Both phase out for individuals over $150,000 and joint filers over $300,000.12Internal Revenue Service. One, Big, Beautiful Bill Act: Tax Deductions for Working Americans and Seniors For a senior still earning tipped or hourly wages, these deductions stack on top of the new senior deduction while they last.