Is your Social Security being taxed?

You've probably seen the headlines: "No more tax on Social Security." Here's the honest answer, because it's not quite what happened — and believing the headline can cost you at tax time. Up to 85% of your benefit can be counted as taxable income, the rules did not actually change in 2025, and most retirees have no idea which side of the line they're on. Below: what the law really did, how to figure out how much of your benefit is taxable, who pays nothing, who gets hit, and the legal moves that bring the number down.

Did the 2025 law make Social Security tax-free?

No. This is the biggest point of confusion. The 2025 law (the "One Big Beautiful Bill") created a temporary $6,000 senior deduction — $12,000 for a couple where both are 65+. It can lower your overall tax bill, and it's worth claiming. But it's a deduction, not a repeal. It did not change how Social Security itself is taxed. The 0% / 50% / 85% rules below are exactly the same as before. (More on that deduction in the $6,000 senior deduction.)

How much of your Social Security is taxable

At the federal level, anywhere from none of your benefit to 85% of it can be counted as taxable income. Read that carefully — it's not 85% in tax, it's up to 85% of the benefit added to your taxable income, then taxed at your normal rate. And here's the part most people don't know: no matter how high your income, no more than 85% ever counts. At least 15% of your benefit is always tax-free — even for a millionaire.

One note: this is the federal rule. A small and shrinking number of states tax Social Security too, so check your own state — but for most people the federal rule is the one that matters.

The one number that decides it: combined income

What puts you at 0%, 50%, or 85% is a single number the IRS calls your combined income (sometimes "provisional income" — same thing):

Social Security by itself usually isn't taxed. It's the other income — IRA/401(k) withdrawals, a pension, wages, interest — that pushes your benefit into the taxable zone.

The 2026 thresholds

A worked example (single)

Say you're single, your Social Security is $24,000 a year, and you pull $30,000 from a traditional IRA. Half your benefit is $12,000, plus the $30,000 = $42,000 combined income. Run it through the thresholds:

• First $25,000 → nothing.
• $25,000–$34,000 (that $9,000) → counts at 50% = $4,500.
• The $8,000 above $34,000 → counts at 85% ≈ $6,800.

Add those up and roughly $11,000 of your $24,000 benefit is taxable. This is a simplified illustration of the shape — the exact figure comes from the worksheet in IRS Publication 915 (or your tax software). Notice: take that IRA withdrawal away and live on Social Security alone, and almost none of it would be taxed. It's the other income that pulls your benefit in.

A worked example (married)

Same engine, bigger thresholds. You're married, combined Social Security is $40,000, and you take $35,000 from a pension or IRA. Half your benefit is $20,000, plus $35,000 = $55,000 combined income. First $32,000 → nothing; the next $12,000 → 50%; the $11,000 above $44,000 → 85%. Add it up and roughly $15,000 of your $40,000 benefit is taxable.

Why it quietly gets worse every year

The thresholds — $25,000, $32,000, $34,000, $44,000 — have not been adjusted since the 1980s and '90s. They aren't indexed to inflation. Everything else rises — your benefit, your withdrawals, the price of groceries — but the lines that decide your tax don't move. So every year more middle-income retirees quietly cross over and start paying tax on benefits that used to be tax-free. It's not a new law doing it — it's the old one standing still.

Who it hits — and who it won't

The honest part, so you don't stress over nothing:

• Mostly Social Security, little other income: good chance you pay zero tax on your benefit — and the new senior deduction won't change much, because there was little to tax in the first place.
• The middle: enough from a pension or IRA to cross the thresholds, but not wealthy — this group gets hit hardest.
• High earners: simply at the 85% cap. Remember, 15% is still tax-free.

Know which group you're in before you plan, not after.

The trap nobody warns you about: the survivor's penalty

Here's one almost no one sees coming. When one spouse passes away, the survivor usually has to start filing as single the very next year — and the single thresholds kick in far lower ($25,000 / $34,000 instead of $32,000 / $44,000). So the survivor often has less income (they keep the larger Social Security check but lose the smaller one) and yet more of it becomes taxable, because now they're measured against the single thresholds. Their standard deduction roughly halves on top of that. It's sometimes called the widow's penalty: the tax bill goes up at the exact moment income goes down. If you're a couple, plan for this together, now — while you both can.

3 legal moves that lower it

• The $6,000 senior deduction — if you're 65+ and qualify, claim it; it lowers your overall taxable income.
• Roth conversion timing (a double-edged sword). A big conversion in a year you're already drawing Social Security can backfire — it raises your combined income, so more of your benefit gets taxed and you can lose part of the senior deduction. Advisors call that the "tax torpedo." Flip it around: a conversion in a low-income year (retired, but not yet drawing Social Security or required withdrawals) fills the low brackets cheaply and shrinks income that would have been taxed later. Same tool, opposite result — run it by a tax pro first.
• Qualified Charitable Distribution (QCD) — if you're old enough to take required withdrawals, send some straight to charity. It doesn't count as income, so it lowers your combined income, can shrink the tax on your Social Security, and can win back part of the senior deduction. Act before December 31, not in April.

Recap — what to do

• Calculate your combined income (½ your Social Security + your other income) and see which side of the thresholds you land on.
• If someone prepares your taxes, ask point-blank: how much of my Social Security is taxable this year, and was the senior deduction applied?
• If you're near a threshold, look at your withdrawals and charitable giving before December 31.

Sources

• SSA — Income Taxes and Your Social Security Benefit
• SSA FAQ — Must I pay taxes on Social Security benefits?
• IRS — Publication 915 (Social Security benefits)
• IRS — Social Security benefits may be taxable

Educational only — not personal financial or tax advice. Everyone's situation is different; confirm your details with a qualified tax professional or at IRS.gov / SSA.gov. Jeffrey Miller is an educator, not a licensed tax advisor.