Is Social Security taxable? How your benefits are taxed, in plain English

Social Security can be taxable: if half your benefits plus your other income is more than $25,000 (single) or $32,000 (married filing jointly), up to 50% of your benefits count as taxable income, and above $34,000 or $44,000, up to 85% can. If Social Security is most of what you live on, you may owe no federal tax on it at all.

"Up to 85%" is the part that worries people, and it's often misread. It's the most of your benefit that can be counted as income, not a tax rate, and most people who pay something are taxed on less than that. Here's how the test works, with a made-up example you can follow with a pencil.

This is general education, not tax or financial advice. Your own return decides what you owe. The IRS worksheet in Publication 915, tax software or a tax preparer can give you your real figure.

Figures checked October 23, 2026 against IRS.gov: Publication 915 (2025), the IRS Social Security income FAQ, Tax Topic 423, Form W-4V (Rev. January 2026) and the IRS pages on the enhanced deduction for seniors. SSA.gov's own tax page didn't load for us tonight; its thresholds match the IRS figures above.

Step 1: work out your combined income

The IRS calls this comparing your "base amount" with half your benefits plus all your other income. Most people just call it combined income (some sources call it provisional income):

1. Half of your Social Security for the year. Use the total benefit, before any Medicare premiums are taken out. Box 5 of the Form SSA-1099 you get each January shows it.
2. Your other taxable income: pensions, wages, traditional IRA and 401(k) withdrawals, interest, dividends, capital gains, and any Roth conversions.
3. Tax-exempt interest, such as municipal bond interest. It's tax-free on its own, but it still counts here.

Add the three together. That's the number you compare with the thresholds.

Some money doesn't count at all: qualified Roth IRA withdrawals, cash you take from a savings account (only its interest counts), and the principal you get back when you sell investments (only the gain counts).

Step 2: compare it with the thresholds

Source: IRS Publication 915 (2025). Married filing separately and lived apart the entire year: use the single amounts.

These dollar amounts are written into the law and haven't changed in decades. Benefits get a cost-of-living raise most years and the thresholds don't, which is why taxes on Social Security reach more households over time.

Step 3: the taxable part is the smaller of two amounts

This is where "up to" comes in. Inside the 50% band, the taxable amount is the smaller of half your benefits, or half of what your combined income is over the first threshold. Above the second threshold, 85% of the amount over that line is added, but the total can never be more than 85% of your benefits.

It's easier to see with numbers.

A made-up example

Robin and Luis (invented for this guide) file jointly. In one year they get:

• $40,000 in Social Security between them
• $30,000 from a traditional IRA
• $2,000 in bank interest

Combined income: $20,000 (half their benefits) + $32,000 (other income) = $52,000. That's over the $44,000 line, so up to 85% of their benefits could be taxable. Here's what actually is, following the Publication 915 worksheet:

So $12,800 of their $40,000, about 32%, is added to their other income on the return. It's then taxed at their normal rate after deductions. They don't pay 85% of anything.

Now say Robin and Luis had taken $10,000 less from the IRA, using cash savings instead. Combined income drops to $42,000, inside the 50% band, and taxable Social Security falls to $5,000. That one choice moved $7,800 off their taxable income. It's why the order you draw from your accounts matters so much in the first years of retirement. (Our guide to which account to spend first goes deeper.)

And someone who owes nothing

Pat (also made up) is single and gets $24,000 a year in Social Security, plus $10,000 from a small pension. Combined income is $12,000 + $10,000 = $22,000, under $25,000. None of Pat's benefits are taxable.

The new senior deduction, and what it doesn't do

For tax years 2025 through 2028, people who are 65 or older by the end of the year can take an extra deduction of up to $6,000 each ($12,000 for a married couple if both qualify). It's on top of the regular extra standard deduction for people 65 and over, and you can take it whether you itemize or not (IRS).

A few details from the IRS:

• It starts to phase out once modified adjusted gross income is over $75,000 ($150,000 for joint filers).
• Married couples have to file jointly to claim it, and the return needs a valid Social Security number for each person claiming it.
• It's claimed on Schedule 1-A.

What it doesn't do: it doesn't make Social Security tax-free, and it doesn't change the combined-income test or how much of your benefit is taxable. It lowers your taxable income after that figure is worked out, so many people end up owing less, or nothing, on the same benefit.

State taxes

Everything above is federal. Most states don't tax Social Security, but a few do, often with their own exemptions by age or income. Check your state's tax agency website, and look again if you're thinking of moving in retirement.

How to avoid a surprise tax bill

Social Security doesn't withhold tax unless you ask. If part of your benefit will be taxable, you have two options:

• Withholding: fill in IRS Form W-4V and give it to Social Security. You can choose 7%, 10%, 12% or 22% of each payment, and no other percentage. You can change or stop it later with a new form.
• Quarterly estimated payments using Form 1040-ES. This suits people with income from several places, or who'd rather pay as they go.

If you also take IRA or 401(k) withdrawals, it can be simpler to have extra tax withheld from those instead and leave Social Security alone. Any of these works. The aim is to cover what you'll owe, without a large refund or bill.

Ways people keep more of their benefit

None of these is right for everyone, and the trade-offs depend on your whole plan. They're worth knowing about:

• Spread out large withdrawals. Taking a big IRA withdrawal, a large capital gain or a Roth conversion in one year can push more of your benefit into the taxable column that year.
• Roth money counts differently. Qualified Roth withdrawals aren't part of combined income. Converting some savings to Roth in the years before you claim, while your income is low, is one way people plan for this. Conversions add to that year's income, so look at Medicare premiums too (Roth conversions and IRMAA).
• Think about timing as a whole. Delaying Social Security means a bigger check later, but it can also leave more years to draw down traditional accounts at low tax rates first. Our guide to when to claim if you retire early walks through it.
• Plan for required minimum distributions. From your 70s, RMDs add income you can't turn off, and that income counts in the test.

A simple plan for this month

1. Find last year's Form SSA-1099 (or log in to my Social Security for a copy), or estimate your benefit if you haven't claimed yet.
2. Add up your other income for the year and work out your combined income.
3. Compare it with the table above. If you're over the first line, run the Publication 915 worksheet or your tax software.
4. If you'll owe, decide between Form W-4V and quarterly payments.
5. Write down one withdrawal choice that could lower next year's figure, and check it against your bigger plan.

Common questions

Is Social Security taxable after age 65?

It can be, at any age. Whether you owe tax depends on your combined income, not your age. People 65 and older do get a larger standard deduction, plus the extra senior deduction for tax years 2025 through 2028, which can reduce or wipe out the tax on the same benefit.

At what income is Social Security not taxable?

For federal tax, none of your benefits are taxable if half your benefits plus your other income, including tax-exempt interest, is $25,000 or less if you're single, or $32,000 or less if you're married filing jointly. If you're married filing separately and lived with your spouse at any time that year, the line is $0.

Does 85% of Social Security get taxed?

No. At most 85% of your benefit is counted as taxable income, and only if your combined income is above $34,000 (single) or $44,000 (joint). That amount is then taxed at your normal rate. Many people who owe tax have well under 85% of their benefit counted.

Did the new tax law make Social Security tax-free?

No. The law added a deduction of up to $6,000 per person aged 65 or older for tax years 2025 through 2028. It lowers taxable income and phases out above $75,000 of modified AGI ($150,000 joint), but the rules for how much of your benefit is taxable didn't change.

Do Roth IRA withdrawals count toward taxing Social Security?

Qualified Roth IRA withdrawals don't count in combined income, so they don't make more of your benefit taxable. Traditional IRA and 401(k) withdrawals, pensions, wages, interest and capital gains do count, and so does tax-exempt municipal bond interest.

How do I have taxes withheld from Social Security?

Fill in IRS Form W-4V and give it to Social Security. You can choose to have 7%, 10%, 12% or 22% of each payment withheld. You can also make quarterly estimated payments with Form 1040-ES instead.

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