Will I Pay Taxes on My Social Security Benefits in Retirement?

You may pay federal income tax on part of your Social Security benefits if your other income is high enough. The IRS says benefits may be taxable when one-half of your benefits, plus your other income including tax-exempt interest, is greater than a base amount that depends on filing status. Many people include none of the benefit. Others include a portion. The maximum share that can be included for a typical U.S. filer is 85 percent of the benefit, which is not the same thing as an 85 percent tax rate.

Supplemental Security Income is not taxed as a Social Security benefit. Retirement, survivor, and disability benefits can be. The Social Security Administration reports what you were paid on Form SSA-1099. The taxable slice, if any, is computed on a worksheet in IRS Publication 915 or in the Form 1040 instructions. This article explains that worksheet's idea. It is not a filled-in return.

Combined income, also called provisional income

The SSA describes combined income as your adjusted gross income, plus tax-exempt interest, plus one-half of your Social Security benefits. The IRS FAQ on taxing benefits, reviewed in September 2026, uses the same building blocks: one-half of benefits plus other income, including tax-exempt interest. People also call this provisional income. It is a test amount. It is not a line you pay tax on by itself.

The base amounts on that IRS page are:

• $25,000 if you are single, head of household, or a qualifying surviving spouse.
• $25,000 if you are married filing separately and lived apart from your spouse for the entire year.
• $32,000 if you are married filing jointly.
• $0 if you are married filing separately and lived with your spouse at any time during the year.

If you are under the base amount, benefits are generally not taxable. If you are over it, a portion becomes taxable. The SSA states that you may pay tax on up to 85 percent of benefits once combined income is over the individual or joint base amount. Publication 915's worksheet is what turns "up to 85 percent" into a dollar amount. A household just over the base often includes far less than 85 percent. A household far above it can reach that cap. You never include more than the cap the worksheet allows, and the tax rate on the included dollars is your ordinary rate, not 85 percent.

What pushes benefits into the taxable column

Income	How it usually affects the Social Security tax test
Traditional IRA or 401(k) withdrawal	Generally ordinary income. It raises adjusted gross income and can raise the taxable share of benefits.
Pension	Usually taxable retirement income. It works like other ordinary income in the combined-income test.
Interest, dividends, and capital gains	They count in the income measure. Tax-exempt municipal interest is easy to miss because it is added back even though it is not taxed.
Wages	Earned income raises the test. Working while you collect a benefit is covered in Social Security while you are still working.
Qualified Roth withdrawal	A qualified Roth IRA withdrawal is generally left out of adjusted gross income, so it generally does not raise combined income the way a traditional IRA withdrawal does. Confirm the withdrawal actually qualifies before you count on that.

That interaction is why claiming age and withdrawal choices belong together. Claiming earlier starts a smaller benefit sooner. Taking a large traditional IRA withdrawal in the same year can cause more of that benefit to show up on the tax return. Delaying the claim, discussed in Social Security at 62, 67, or 70, changes the size of the check. It does not repeal the tax rule. Which account you withdraw from changes whether the extra income is a traditional IRA dollar or a Roth dollar.

An illustration, not a tax bill

Suppose a single retiree has $20,000 of pension income and $18,000 of Social Security. Half of the benefit is $9,000. Adding the pension gives a test amount around $29,000, which is over the $25,000 base. Some of the benefit may be taxable. The worksheet, not this paragraph, computes how much.

Now add a $30,000 traditional IRA withdrawal. The test amount jumps. A larger share of the same Social Security check can become taxable, and the IRA withdrawal is taxable too. The household did not get a new benefit. It stacked income. If that $30,000 instead came from a qualified Roth IRA, the combined-income test would usually ignore it. The spending power might look similar. The tax result would not.

Married couples combine both spouses' income and both spouses' benefits on a joint return, even if only one person receives Social Security. That is straight from the IRS explanation. Filing separately while living together is harsh because the base amount is zero. Do not choose a filing status from this example. Use the worksheet for the status you will actually file.

States, withholding, and what this article is not

States do not all treat Social Security the same way. Some exclude benefits from state taxable income. Some tax them. Some use an income test of their own. Federal combined income does not answer the state question. Check the state instructions for the year you file.

If you expect a taxable portion, you can ask Social Security to withhold federal income tax, or you can pay estimated tax. Withholding is a cash-flow tool. It does not change whether the benefit is taxable. Our separate article on how to reduce taxes in retirement is about the wider set of choices, including withdrawal order and Roth conversions. This page is only about how the benefit itself gets taxed.

Common mistakes

People hear "85 percent" and think the IRS takes 85 percent of the check. They do not. At most, 85 percent of the benefit is included in taxable income, and then it is taxed at ordinary rates along with everything else. Another mistake is forgetting tax-exempt interest, or assuming a Roth withdrawal and a traditional withdrawal are identical in this test. A third is planning a large IRA withdrawal in the same year a spouse starts Social Security without running the worksheet. Couples also forget that one spouse's pension can make the other spouse's benefit taxable on a joint return.

What this means for your retirement plan

Put the Social Security estimate next to pensions, wages, and the account you will actually spend. Then ask what combined income looks like, not just what the deposit will be. If a traditional withdrawal is what tips the benefit into the taxable range, that is a planning fact, not a reason to avoid Social Security. Analyze your retirement income with your own benefit estimate and other income.

Frequently asked questions

Are Social Security benefits always taxable?

No. If half of your benefits plus your other income, including tax-exempt interest, stays at or under the base amount for your filing status, the benefits are generally not taxable. The IRS publishes those base amounts and a worksheet.

Is 85 percent of my benefit the tax I will pay?

No. Eighty-five percent is the largest share of the benefit that can be included in federal taxable income for many filers. The tax is then computed at your ordinary rates. Some of the benefit can remain untaxed even when you are over the base amount.

Do Roth IRA withdrawals make Social Security taxable?

Qualified Roth IRA withdrawals are generally excluded from adjusted gross income, so they generally do not increase combined income. A withdrawal that is not qualified can be different. Publication 915 and the Roth distribution rules in Publication 590-B are the references.

Will my state tax Social Security?

It depends on the state and sometimes on your income. Federal rules do not settle it. Use your state's current instructions.

Related reading

• When should I claim Social Security: 62, 67, or 70?
• Can I collect Social Security while I am still working?
• How can I reduce taxes in retirement?
• What is a sensible retirement withdrawal order?

This article is educational and not tax advice. Base amounts and worksheets can be updated. Use the IRS FAQ on Social Security benefits, Publication 915, and SSA.gov, and consider a qualified tax professional for your return.