Yes, federal income tax can be taken from your Social Security payments

The Social Security Administration does not automatically withhold federal income tax from your checks. However, if you choose to have taxes withheld, the SSA will deduct them before you receive your payment. You decide whether to have taxes taken out—it is not required, but many people choose it to avoid a large tax bill at the end of the year.

Whether you actually owe federal income tax on your Social Security depends on your total income. If Social Security is your only income, you typically owe no federal tax. But if you have other income—wages, pensions, investment earnings, or rental income—part of your Social Security may become taxable. The IRS uses a formula based on your "combined income" to determine how much, if any, of your benefit is subject to tax.

Key Takeaways

  • Federal income tax is not automatically withheld from Social Security; you must request it on Form W-4V if you want taxes taken out.
  • You owe federal tax on Social Security only if your combined income (Social Security plus other income) exceeds certain thresholds that vary by filing status.
  • Up to 85 percent of your Social Security benefit can be taxable, depending on your total income and filing status.
  • State income tax may also explore to Social Security in 13 states, regardless of federal tax rules.
  • You can change your withholding or stop it at any time by submitting a new Form W-4V to the SSA.

How the IRS decides if your Social Security is taxable

The IRS uses a calculation called combined income to determine whether you owe tax on Social Security. Combined income is your adjusted gross income plus nontaxable interest plus half of your Social Security benefit. The thresholds where Social Security becomes taxable depend on your filing status.

If you file as single and your combined income is between $25,000 and $34,000, up to 50 percent of your Social Security may be taxable. If it exceeds $34,000, up to 85 percent may be taxable. If you are married filing jointly, the thresholds are $32,000 to $44,000 for the 50 percent rule and above $44,000 for the 85 percent rule. If you are married filing separately, almost all of your Social Security is taxable unless you lived apart from your spouse the entire year.

The exact amount of tax you owe depends on how far your combined income exceeds the threshold. The IRS has worksheets in Publication 915 that walk through the calculation, but a tax professional can compute this for you as well.

How to request federal tax withholding on your checks

To have federal income tax withheld from your Social Security, you must submit Form W-4V (Voluntary Withholding Request) to the Social Security Administration. You can request this form online at ssa.gov, by calling Social Security at 1-800-772-1213, or by visiting your local Social Security office in person.

On the form, you choose a withholding rate: 7 percent, 10 percent, 12 percent, or 22 percent of your benefit. Most people choose 10 or 12 percent. The withholding starts with your next payment after SSA processes the form, which typically takes two to four weeks. You can change your withholding rate or stop it entirely by submitting a new Form W-4V at any time.

Keep in mind that the percentage you choose is applied to your gross benefit amount. If you receive $1,500 per month and request 10 percent withholding, $150 will be withheld each month. This is a rough estimate—the actual tax you owe may be higher or lower depending on your other income.

State income tax on Social Security

Thirteen states tax Social Security benefits: Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, Vermont, and West Virginia. The rules in each state differ. Some states exempt Social Security entirely if your income falls below a certain level. Others tax it the same way the federal government does. A few states have their own withholding forms separate from the federal W-4V.

If you live in one of these states and want state tax withheld, contact your state tax authority or the Social Security Administration to find out whether a separate form is required. Some states use the federal W-4V; others do not. The SSA can tell you which applies where you live.

What happens if you do not request withholding

If you do not have taxes withheld and you owe federal income tax on your Social Security, you will owe that tax when you file your tax return. You can pay it with your return, or you can make quarterly estimated tax payments throughout the year using Form 1040-ES. Many people find it simpler to have withholding taken from their checks so they do not face a surprise bill in April.

If you underpay your taxes during the year—either because you did not request withholding or because your withholding rate was too low—you may owe a penalty for underpayment. The IRS charges interest on unpaid taxes as well. Having withholding taken out helps you avoid both.

How to estimate your tax liability

To get a rough idea of whether you will owe tax, add up your income for the year: Social Security, wages, pensions, interest, dividends, rental income, and any other sources. Then calculate your combined income using the IRS formula (adjusted gross income plus nontaxable interest plus half your Social Security). Compare that number to the threshold for your filing status. If you are over the threshold, some of your Social Security is taxable.

The IRS Publication 915 includes a worksheet that shows exactly how much of your benefit is taxable based on your combined income. You can also use the Social Security Benefit Estimator on ssa.gov to see what your annual benefit will be, then plug that into the IRS worksheet. A tax professional or certified public accountant can do this calculation for you if you prefer not to do it yourself.

Frequently Asked Questions

Can I change my withholding amount after I request it?

Yes. Submit a new Form W-4V to the SSA with your new withholding rate, and the change takes effect with your next payment after processing. You can also stop withholding entirely by submitting a Form W-4V that says "no withholding" or by writing to the SSA directly.

What if I owe more tax than what was withheld?

You will owe the difference when you file your tax return. You can pay it with your return or set up a payment plan with the IRS. To avoid this in the future, increase your withholding rate on a new Form W-4V.

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

Not usually. If Social Security is your only income and it is below the filing threshold for your age and filing status, you do not have to file. However, filing may be worth it if you had taxes withheld, because you might get a refund.

Does the SSA send me a tax form at the end of the year?

Yes. The SSA mails Form SSA-1099 in January showing your total Social Security income for the previous year. Use this form when you file your tax return. If you have questions about the amount, contact the SSA before filing.

What if I live in a state that taxes Social Security but I moved there after I started receiving benefits?

You may owe state tax on your Social Security starting the year you moved. Contact your new state's tax authority to find out the rules and whether you need to file a state return or request state withholding.