Whether You Pay Tax on Social Security

You may have to pay federal income tax on your Social Security benefits, depending on how much other income you receive. The IRS calls this "combined income," and it includes your Social Security, wages, interest, dividends, and other earnings added together. If your combined income exceeds a certain threshold, between 50% and 85% of your benefits become taxable.

The thresholds are the same whether you're single or married filing jointly, but married couples filing separately face much higher tax rates on benefits. Most people who receive only Social Security and have no other income pay no federal tax on their benefits. The tax applies mainly to people who work while receiving benefits, have substantial retirement savings, or are married and file separately.

State taxes are a separate question. Some states tax Social Security benefits, and some do not. Your state's rules do not depend on the federal threshold — a state may tax your benefits even if the IRS does not, or vice versa.

Key Takeaways

  • You owe federal tax on Social Security only if your combined income (benefits plus other earnings) exceeds $25,000 for single filers or $32,000 for married couples filing jointly.
  • Combined income includes wages, self-employment income, interest, dividends, rental income, and half of your Social Security benefits.
  • If you exceed the threshold, you may owe tax on 50% to 85% of your benefits, not on all of them.
  • Thirteen states tax Social Security benefits under their own rules, regardless of the federal threshold.
  • You can request that the Social Security Administration withhold federal tax from your monthly payment to avoid a tax bill at year-end.

How the IRS Calculates Combined Income

The IRS uses a specific formula to determine whether your benefits are taxable. Start with your adjusted gross income (the number on your tax return before the standard deduction). Add to that any tax-exempt interest you earned — usually from municipal bonds. Then add half of your Social Security benefits for the year. That total is your combined income.

The thresholds are $25,000 for single filers and $32,000 for married couples filing jointly. If your combined income is below these amounts, you owe no federal tax on your benefits. If it exceeds the threshold, the IRS taxes the amount above the line, up to a maximum of 85% of your benefits.

Example: A single person receives $20,000 in Social Security and has $10,000 in pension income. Combined income is $10,000 + $10,000 (half of benefits) = $20,000. This is below the $25,000 threshold, so no federal tax is owed. If that same person had $18,000 in pension income instead, combined income would be $28,000, which exceeds the threshold by $3,000. The taxable portion would be the lesser of $3,000 or half the benefits ($10,000), so $3,000 of the benefits would be taxable.

Which States Tax Social Security Benefits

Thirteen states tax Social Security benefits under their own income tax rules: Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, Vermont, and West Virginia. Each state sets its own threshold and tax rate, separate from the federal rules.

Some states exempt benefits entirely for people over a certain age — often 55 or 62 — or for people with income below a state-specific threshold. Colorado, for example, taxes benefits but allows a deduction based on age. Kansas taxes benefits but exempts military pensions dollar-for-dollar. You need to check your state's tax agency website or speak with a tax preparer who knows your state's rules.

If you live in a state that does not tax Social Security, you still owe federal tax if your combined income exceeds the federal threshold. The two taxes are independent.

Requesting Tax Withholding From Your Benefits

If you expect to owe federal tax on your benefits, you can ask Social Security to withhold money from your monthly payment. This prevents a large tax bill when you file your return. You request withholding by completing Form W-4V (Voluntary Withholding Request) and mailing it to your local Social Security office, or by calling Social Security at 1-800-772-1213 to request the form.

You choose the withholding rate: 7%, 10%, 15%, or 22% of your monthly benefit. Social Security will withhold that amount starting the month after they receive your form. You can change or stop withholding at any time by submitting a new Form W-4V.

Withholding is voluntary and does not change how much tax you owe — it straightforward spreads the payment across the year instead of requiring a lump sum at tax time. If you withhold too much, you receive a refund when you file. If you withhold too little, you still owe the difference.

Working While Receiving Social Security

If you work and receive Social Security before your full retirement age, your combined income will likely exceed the federal threshold, making your benefits taxable. Additionally, Social Security reduces your monthly benefit by $1 for every $2 you earn above an annual limit if you have not yet reached full retirement age. In 2024, that limit is $23,400, but the limit changes each year.

Once you reach full retirement age, Social Security no longer reduces your benefits based on earnings, but your benefits remain taxable if your combined income is high enough. The tax applies to the same combined income formula described above — your wages count as part of it.

Filing Your Tax Return With Social Security Income

Social Security sends you a Form SSA-1099 by January 31 each year showing the total benefits you received. You use this form to report your benefits on your federal tax return. If you received benefits from multiple sources or had other income, you may need to file even if your benefits alone would not require it.

You report your Social Security on Form 1040 (the main federal tax form). The IRS worksheet that comes with the form walks you through calculating how much of your benefits are taxable. If you use tax software, it will ask you for the amount from your SSA-1099 and calculate the taxable portion automatically.

If you owe tax on your benefits, you pay it the same way you pay any other federal income tax — either through withholding during the year or by paying when you file your return. If you did not withhold enough, you may owe a payment or face a penalty, so it is worth estimating your tax liability early in the year.

Married Couples Filing Separately

If you are married and file separate tax returns, the threshold for taxing benefits drops to $0. This means that if you file separately and receive any Social Security, some portion of your benefits will be taxable no matter how low your other income is. This rule is designed to discourage married couples from filing separately.

In almost all cases, married couples pay less total tax by filing jointly, even if one spouse has high income and the other has low income. If you are separated or divorced, speak with a tax preparer about whether filing separately makes sense for your situation.

Frequently Asked Questions

Do I have to file a tax return if I only receive Social Security?

No, not unless your combined income exceeds the threshold ($25,000 for single filers, $32,000 for married filing jointly). If Social Security is your only income and you are below the threshold, you have no federal tax filing requirement. However, if you had other income — wages, interest, or self-employment income — you may need to file even if your benefits alone would not trigger a requirement.

What if I worked for a government employer and have a pension instead of Social Security?

Government pensions are treated differently under a rule called the Government Pension Offset. If you receive a government pension and also receive spousal or survivor benefits from Social Security, your spousal benefit may be reduced or eliminated. This is separate from the tax question. Speak with Social Security directly about how your pension affects your benefits.

Can I reduce the amount of my benefits that are taxable?

You cannot reduce your benefits themselves, but you can reduce your combined income by managing other sources of income. For example, if you have the option to delay taking withdrawals from a retirement account, doing so lowers your combined income and may keep you below the tax threshold. A tax preparer or financial advisor can help you plan withdrawals strategically.

What if I disagree with the amount of tax withheld from my benefits?

You can change your withholding rate at any time by submitting a new Form W-4V. If you withheld too much during the year, you will receive a refund when you file your tax return. If you withheld too little, you will owe the difference. The IRS does not charge interest on underpayment if your total tax liability for the year is under a certain amount, but penalties may explore if you owe a large amount.

Do I pay Medicare premiums on taxable Social Security benefits?

No. Your Medicare Part B and Part D premiums are based on your modified adjusted gross income from two years prior, not on whether your Social Security benefits are taxable. However, if your income is high enough, you may pay an Income-Related Monthly Adjustment Amount (IRMAA) on top of your standard Medicare premium. This is a separate calculation from federal income tax.