Whether Your Social Security Is Taxed Depends on Your Total Income

Social Security benefits are taxed only if your combined income exceeds certain thresholds set by the IRS. Combined income is not just what you earn from work — it includes wages, interest, dividends, and half of your Social Security benefits themselves. The IRS uses this combined figure to decide whether any of your benefits count as taxable income.

The thresholds are $25,000 for single filers and $32,000 for married couples filing jointly. If your combined income falls below these amounts, you owe no federal tax on your benefits. If it exceeds them, you may owe tax on up to 85 percent of your benefits, depending on how far over the threshold you go.

These thresholds have not changed since 1984, so they affect more people now than they did when they were first set. Your state may also tax Social Security benefits — 13 states currently do, though rules vary by state.

Key Takeaways

  • Combined income, not just your salary, determines whether Social Security is taxed — it includes half your benefits plus all other income sources.
  • If combined income stays below $25,000 (single) or $32,000 (married filing jointly), your benefits are not taxed federally.
  • The IRS worksheet for calculating taxable benefits uses two separate income thresholds to determine whether 50 percent or 85 percent of your benefits count as income.
  • Thirteen states tax Social Security benefits under their own rules, separate from federal tax.
  • You can reduce combined income by working with a tax professional to time withdrawals from retirement accounts or adjust other income sources.

Calculate Your Combined Income

Start by adding up all income sources for the tax year. This includes W-2 wages, self-employment income, interest, dividends, capital gains, rental income, and distributions from retirement accounts. Then add half of your Social Security benefits to this total. The result is your combined income.

For example: if you received $20,000 in Social Security, earned $15,000 from part-time work, and had $3,000 in interest income, your combined income would be $15,000 + $3,000 + ($20,000 ÷ 2) = $23,000.

If you are married filing jointly, combine both spouses' income and both spouses' Social Security benefits. Even if one spouse has no income, you still use the $32,000 threshold for the couple.

Use the IRS Worksheet to Find Taxable Benefits

The IRS provides a worksheet in Publication 915 that walks you through the calculation step by step. The worksheet uses two income thresholds — called Tier 1 and Tier 2 — to determine what percentage of your benefits are taxable.

If your combined income is between $25,000 and $34,000 (single) or $32,000 and $44,000 (married filing jointly), up to 50 percent of your benefits may be taxable. If your combined income exceeds $34,000 (single) or $44,000 (married filing jointly), up to 85 percent of your benefits may be taxable.

The worksheet calculates the exact amount by comparing your combined income to these thresholds. You do not calculate it yourself — you follow the lines on the worksheet, which does the math for you. The result tells you how much of your Social Security counts as taxable income on your federal return.

Publication 915 is free and available on the IRS website. You can also request a printed copy by calling the IRS at 1-800-829-3676.

Report Taxable Benefits on Your Tax Return

Once you know how much of your benefits are taxable, you report this amount on Form 1040 or Form 1040-SR (for taxpayers age 65 and older). The taxable portion goes on line 5b, and your total Social Security benefits go on line 5a. You will need your Social Security statement, which the Social Security Administration sends each year, to find the exact amount you received.

If you received benefits from more than one source — for example, your own retirement benefits and survivor benefits — add them together before calculating combined income. The IRS treats all Social Security income as a single amount for tax purposes.

If tax was not withheld from your benefits during the year, you may owe tax when you file. You can request that the Social Security Administration withhold federal income tax from your monthly payment using Form W-4V, which you submit to your local Social Security office.

Reduce Combined Income to Lower Your Tax

If your combined income is close to a threshold, small changes can move you below it. Common strategies include timing large withdrawals from retirement accounts, spacing out distributions across multiple years, or deferring income to the following year when possible.

Some people reduce combined income by converting traditional IRA withdrawals to Roth conversions in years when income is lower, or by bunching charitable donations into a single year if they itemize deductions. These strategies require planning and may have other tax consequences, so working with a tax professional is often worthwhile if your situation is complex.

You cannot reduce combined income by excluding Social Security benefits themselves — the calculation is fixed by law. But you can control other income sources within your power.

State Taxes on Social Security Benefits

Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, Vermont, and West Virginia all tax Social Security benefits under their own state rules. Illinois and Pennsylvania tax benefits in limited circumstances. Each state sets its own thresholds and rates, so a benefit that is not taxed federally may still be taxed by your state.

If you live in one of these states, check your state tax agency's website for a worksheet or publication specific to Social Security taxation. Some states use the same thresholds as the federal government; others use different ones. A few states exclude Social Security from taxation entirely for residents over a certain age.

Your state tax return will ask whether you received Social Security income. You report the same amount you reported federally, then follow your state's rules to determine what portion, if any, is taxable under state law.

Frequently Asked Questions

Do I have to file a tax return if my only income is Social Security?

Not necessarily. If your combined income is below the threshold for your filing status, you have no federal tax liability and are not required to file. However, you may want to file anyway if you had taxes withheld from your benefits or if you are may have access to to a refundable tax credit like the Earned Income Tax Credit.

What if I worked and received Social Security in the same year?

Both your wages and your Social Security count toward combined income. Add your W-2 wages (or self-employment income), plus half your Social Security benefits, plus any other income. If the total exceeds the threshold, some of your benefits become taxable. This is true even if you earned very little.

Can I avoid tax on Social Security by not claiming it?

No. The IRS counts Social Security benefits as income whether you claim them or not. If you received benefits during the year, they are part of your combined income for tax purposes. You cannot reduce your tax by straightforward not reporting them.

What if I received Social Security for only part of the year?

Report only the benefits you actually received. If you started benefits in June, for example, you report only the six months of payments you got. The Social Security Administration's annual statement shows the exact amount you received in that tax year.

Do I need to file if I am married but my spouse has no income?

Your filing requirement depends on your combined household income and your filing status. If you file jointly, use the $32,000 threshold even if your spouse earned nothing. If you file separately, each spouse uses the $25,000 threshold. Check the IRS filing requirements for your specific situation, as other factors like age and dependent status also matter.