Whether your SSDI is taxable depends on your total income, not on the SSDI itself

Social Security Disability Insurance (SSDI) can be taxable, but only if your combined income exceeds a certain threshold. The IRS counts SSDI as income for tax purposes, but you may owe nothing if your other earnings stay below the limit. The threshold is low — $25,000 for a single filer, $32,000 for married filing jointly — so many people who receive SSDI do end up owing taxes.

The key is understanding how the IRS calculates your "combined income" for this purpose. It is not just your SSDI amount. It includes wages, self-employment income, interest, dividends, and certain other sources. Once you know your combined income, you can determine whether any of your SSDI is taxable and how much.

Key Takeaways

  • SSDI becomes taxable only if your combined income (SSDI plus other earnings) exceeds $25,000 for single filers or $32,000 for married couples filing jointly.
  • Combined income includes wages, self-employment earnings, interest, dividends, and certain other sources — not just SSDI.
  • The IRS uses a formula to calculate how much of your SSDI is taxable, and it is rarely 100 percent of the benefit.
  • You receive a Form SSA-1099 each January showing your SSDI for the prior year, which you use to complete your tax return.
  • If taxes will be owed, you can request that the Social Security Administration withhold federal income tax directly from your SSDI payments.

How the IRS calculates taxable SSDI

The calculation uses what the IRS calls combined income, which is your adjusted gross income plus nontaxable interest plus half of your SSDI benefits. If that combined income is below $25,000 (or $32,000 if married filing jointly), none of your SSDI is taxable. If it exceeds that threshold, the IRS applies a formula to determine what portion of your benefit counts as income.

The formula is tiered. Up to 50 percent of your SSDI can become taxable if your combined income is between $25,000 and $34,000 (single) or $32,000 and $44,000 (married). If your combined income exceeds $34,000 or $44,000, up to 85 percent of your SSDI can be taxable. This means that even if you are over the threshold, the entire SSDI amount is rarely subject to tax.

Example: A single person receives $1,500 per month in SSDI ($18,000 per year) and has $10,000 in wages. Their combined income is $10,000 plus half of $18,000 ($9,000), which equals $19,000. This is below $25,000, so no SSDI is taxable. If instead they had $20,000 in wages, their combined income would be $29,000, which exceeds the $25,000 threshold. The IRS would then calculate how much of the $18,000 SSDI is taxable using the tiered formula.

What counts toward your combined income

Combined income includes more than just wages. It includes any W-2 income, self-employment earnings, interest from savings accounts or bonds, dividend income, capital gains, rental income, and income from pensions or annuities. It also includes income from a spouse if you file jointly.

Some income sources do not count. Supplemental Security Income (SSI) is not included in combined income. Veterans benefits are not included. Certain railroad retirement benefits and workers' compensation are also excluded. If you are unsure whether a particular income source counts, the Social Security Administration's website has a detailed list, or you can ask a tax professional.

The Form SSA-1099 and filing your return

Each January, the Social Security Administration sends you a Form SSA-1099 showing the total SSDI you received in the prior year. This form goes to you and to the IRS. You use the amount on this form when you complete your federal tax return. If you did not receive a Form SSA-1099 by early February, you can request one from Social Security or read it from their website.

When you file your return, you report the SSDI amount from the Form SSA-1099 on your tax form (usually Form 1040). The IRS then applies the combined income formula to determine if any of it is taxable. If you use tax software or work with a tax preparer, they will ask you for this form and handle the calculation.

If you owe taxes on SSDI, you can pay when you file, or you can set up a payment plan with the IRS if you cannot pay in full. You can also request that the Social Security Administration withhold federal income tax from your SSDI payments going forward, which reduces the amount you receive each month but prevents a large tax bill at year-end.

Requesting tax withholding from your SSDI

If you know you will owe taxes, you can ask Social Security to withhold a percentage of your SSDI payment each month. You do this by completing Form W-4V (Voluntary Withholding Request) and submitting it to your local Social Security office or by mail. You can choose to have 7, 10, 12, or 22 percent of your benefit withheld.

Withholding does not change whether your SSDI is taxable — it only reduces the amount you receive and sets aside money for taxes. If you withhold 10 percent of a $1,500 monthly benefit, you receive $1,350 and $150 goes to federal income tax withholding. At tax time, that $150 per month is credited toward your tax liability. This approach works well if you want to avoid a lump-sum tax bill or if you expect to owe taxes every year.

State income tax on SSDI

Federal tax rules and state tax rules are separate. Most states do not tax SSDI at all, even if the federal government does. However, a few states — including Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, and Vermont — do tax SSDI under certain conditions. The rules vary by state, and some states exempt SSDI only up to a certain income level.

If you live in one of these states, you may owe state income tax on SSDI even if you owe nothing to the federal government. Check your state's tax authority website or ask a tax preparer familiar with your state's rules. Some states allow you to request withholding from your SSDI for state taxes as well, though the process varies.

What to do if you think you made a mistake on your return

If you filed a return and later realized you reported your SSDI incorrectly, or if the IRS sent you a notice saying your SSDI was calculated wrong, you can file an amended return. Use Form 1040-X (Amended U.S. Individual Income Tax Return) to correct the error. You have generally three years from the original filing date to file an amended return and claim a refund.

If the IRS sent you a notice, read it carefully to understand what they believe is wrong. Many notices include instructions for responding. If you disagree with the IRS information, you have the right to appeal. A tax professional or a legal aid organization can help you respond to an IRS notice if you are unsure how to proceed.

Frequently Asked Questions

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

Not necessarily. If SSDI is your only income and it is below the standard deduction for your filing status, you do not have to file. However, if you have other income — wages, interest, self-employment earnings — you may need to file even if your SSDI is not taxable. The standard deduction changes each year, so check the IRS website or ask a tax professional.

If I am married and file jointly, does my spouse's income count toward the threshold?

Yes. When you file jointly, the combined income threshold is $32,000, and it includes both your income and your spouse's income. Even if your spouse does not receive SSDI, their wages or other earnings count toward determining whether your SSDI is taxable.

Can I reduce my taxable SSDI by lowering my other income?

In some cases, yes. If you are close to the threshold and have control over when you receive income — for example, if you are self-employed — timing income in different years might help. However, this strategy is complex and depends on your specific situation. A tax professional can advise whether it makes sense for you.

What if I did not receive a Form SSA-1099?

Contact the Social Security Administration by phone, mail, or through your my Social Security account online. You can also read a replacement Form SSA-1099 from the Social Security website if you need it quickly. Have your Social Security number and the year in question ready.

If I request tax withholding, will I get a refund if too much is withheld?

Yes. If you withhold more than you owe in taxes, you will receive a refund when you file your return, just as you would with any other federal income tax withholding. The withheld amount is credited toward your total tax liability for the year.