What was promised vs. what passed
"No tax on Social Security" was a campaign promise. Changing the taxation of benefits directly would have required changing Social Security law, which can't be done through the budget process Congress used. So the July 2025 tax law did something different: it created an enhanced deduction for seniors — $6,000 for each taxpayer who is 65 or older by year-end, $12,000 for a couple where both qualify — for tax years 2025 through 2028.
You get it whether or not you receive Social Security, whether or not you're retired, and whether you itemize or take the standard deduction. It's claimed on Schedule 1-A, Part V, and stacks on top of the regular standard deduction and the existing extra standard deduction for people 65 and over.
How Social Security is taxed (still)
The IRS adds up your "provisional income": adjusted gross income, plus tax-exempt interest, plus half your Social Security benefits. If that's under $25,000 (single) or $32,000 (joint), none of your benefits are taxable. Between $25,000–34,000 ($32,000–44,000 joint), up to 50% is taxable. Above that, up to 85%. Those thresholds aren't indexed for inflation and the new law didn't touch them.
The senior deduction is applied after this calculation. It's a deduction from taxable income, not from AGI, so it can't lower provisional income and can't change how much of your benefits count. That also means it doesn't reduce your income for Medicare IRMAA surcharges.
A worked example
A single retiree, 68, in 2026: $24,000 of Social Security and $30,000 of pension and IRA withdrawals.
| Provisional income ($30,000 + half of $24,000) | $42,000 |
| Taxable Social Security (85% tier applies) | $11,300 |
| Adjusted gross income ($30,000 + $11,300) | $41,300 |
| Standard deduction incl. 65+ addition | −$18,150 |
| Taxable income before senior deduction | $23,150 |
| Federal tax before | $2,530 |
| New senior deduction | −$6,000 |
| Taxable income after | $17,150 |
| Federal tax after | $1,810 |
| Saved | $720 |
Notice what didn't move: $11,300 of Social Security is still taxable income. The deduction saved $720 (12% of $6,000), which happens to be a bit more than half the tax attributable to the benefits. For a retiree with less other income, the deduction can wipe out the whole bill. For one with more, it covers a smaller share — and above $75,000 it starts shrinking.
The phase-out
The deduction is reduced by 6% of modified adjusted gross income over $75,000 ($150,000 joint). A single filer at $100,000 gets $4,500; at $125,000, $3,000; at $175,000, nothing. A couple both over 65 at $180,000 gets $10,200; at $250,000, nothing. Because it's measured on MAGI (basically AGI), IRA withdrawals and Roth conversions count. A large conversion in a year can cost you the deduction — worth up to $1,440 in the 24% bracket — on top of the tax on the conversion itself. The calculator shows the phase-out for your numbers.
Who qualifies
- Age 65 by December 31 of the tax year (for 2025, born before January 2, 1961; for 2026, before January 2, 1962).
- A valid Social Security number.
- If married, you must file jointly. Married filing separately is ineligible.
- No requirement to be retired or receiving benefits. Working seniors qualify.
- One spouse 65 and one younger: $6,000, with the $150,000 joint threshold.
Planning notes
- Roth conversions: if you're near $75,000/$150,000, each $10,000 converted costs $600 of deduction. Convert up to the line, not past it, or spread conversions across years.
- Qualified charitable distributions from an IRA keep the withdrawal out of AGI, which protects both the senior deduction and your Social Security taxation. At 70½ and up, QCDs are the cleanest tool in this system.
- The deduction expires after 2028 unless Congress extends it. Plans built on it should assume it may not be there in 2029.
- State taxes are unaffected. Some states don't tax Social Security at all; some do; the federal deduction doesn't change either.
Calculate your senior deduction →
Frequently asked questions
Is Social Security tax-free now?
No. Up to 85% of benefits remain taxable under the same thresholds. The new $6,000 senior deduction offsets some or all of that tax for many retirees.
Does the deduction change how much of my benefits are taxable?
No. It's taken after AGI, so the provisional-income formula runs exactly as before.
Do I have to receive Social Security to get the deduction?
No. Age is the only test.
Does it affect Medicare IRMAA?
No. IRMAA is based on MAGI, which the deduction doesn't reduce.
I'm 65 but claimed as a dependent by my child. Do I qualify?
The statute doesn't exclude dependents, but the IRS hasn't addressed it directly. Confirm with a preparer.
How long does it last?
Tax years 2025 through 2028.