Most SSDI and SSI payments do not have to be reported on your federal tax return, but some do—and the rule depends on whether you have other income

Social Security Disability Insurance (SSDI) payments are not taxable income in most cases. You do not report them on your federal Form 1040. Supplemental Security Income (SSI) is also not taxable. However, if you receive both SSDI and other income—wages, interest, pensions, or certain other benefits—part of your SSDI may become taxable. The IRS uses a formula to determine this, and it applies only if your "combined income" exceeds a threshold amount.

The key is understanding what counts as income for this calculation. The IRS does not count all money the same way. Wages count. Interest and dividends count. But some things—like workers' compensation or certain veterans' benefits—do not. If your combined income stays below the threshold, you owe nothing and report nothing. If it goes above, you may owe tax on up to 85 percent of your SSDI benefits.

Key Takeaways

  • SSDI is not taxable if it is your only income, and you do not report it on your tax return.
  • If you have other income (wages, interest, pensions), part of your SSDI may become taxable using the IRS combined income formula.
  • The combined income threshold is $25,000 for single filers and $32,000 for married filing jointly; exceeding it does not automatically mean all SSDI is taxed.
  • Social Security sends Form SSA-1099 each January showing your SSDI payments; keep this for your records even if you do not report it.
  • If you are unsure whether your SSDI is taxable, a tax preparer or the IRS can walk you through the combined income calculation for your specific situation.

How the IRS decides if your SSDI is taxable

The IRS uses a two-step process. First, it calculates your combined income: adjusted gross income (AGI) plus nontaxable interest plus half of your SSDI benefits. If that number is below $25,000 (or $32,000 if married filing jointly), your SSDI is not taxable and you stop there. If combined income exceeds the threshold, you move to step two.

In step two, the IRS determines how much of your SSDI is taxable. The formula is complex, but the outcome is that you may owe tax on up to 85 percent of your benefits. The exact amount depends on how far your combined income exceeds the threshold and on a second threshold amount ($34,000 for single, $44,000 for married filing jointly). Most people who hit this situation owe tax on somewhere between 50 and 85 percent of their SSDI.

Example: You are single and receive $1,200 per month in SSDI ($14,400 per year). You also work part-time and earn $15,000 in wages. Your combined income is $15,000 + $0 (no other income) + $7,200 (half your SSDI) = $22,200. This is below $25,000, so your SSDI is not taxable. You report only the $15,000 in wages.

Another example: You are single, receive $1,200 per month in SSDI, and have $12,000 in pension income. Your combined income is $12,000 + $0 + $7,200 = $19,200. Still below $25,000, so no tax on SSDI. But if that pension were $15,000 instead, combined income would be $22,200—still below the threshold. However, if the pension were $20,000, combined income would be $27,200, which exceeds $25,000 by $2,200. At that point, part of your SSDI becomes taxable.

What counts and does not count as income for this calculation

The IRS includes these in combined income: W-2 wages, self-employment income, interest, dividends, capital gains, rental income, pension payments, IRA withdrawals, and distributions from retirement accounts. It also includes income from a job you held before becoming disabled.

The IRS does not include these: SSI payments, workers' compensation, certain veterans' benefits, Supplemental Nutrition information Program (SNAP) benefits, housing information, or other means-tested government aid. Nontaxable interest (such as interest from municipal bonds) is added back in for the combined income calculation, even though it is not taxable on its own.

If you are unsure whether a particular payment counts, ask the organization that sent it or check the Form 1099 or other statement it provided. The form number and box number often signal whether the IRS considers it income.

When you receive Form SSA-1099 and what to do with it

Each January, Social Security mails you a Form SSA-1099 showing the total SSDI (or SSI) you received in the previous year. Box 3 shows your net SSDI benefit; Box 5 shows any federal income tax already withheld. You will receive this form even if your SSDI is not taxable. Keep it with your tax records.

If your SSDI is not taxable (because combined income is below the threshold), you do not need to attach the SSA-1099 to your return or report the amount anywhere. straightforward file your return reporting only the income that is taxable. The IRS has a record of the SSA-1099 and knows you received it.

If your SSDI is taxable, you will report it on Form 1040 (or Form 1040-SR if you are 65 or older). The exact line depends on your filing status and whether you are using the long or short form. A tax preparer can walk you through this, or you can use IRS Publication 915, which contains the combined income worksheet and examples.

What happens if you had federal tax withheld from your SSDI

If you requested that Social Security withhold federal income tax from your SSDI payments, that withholding appears in Box 5 of your SSA-1099. You report this as tax paid when you file your return. If the withholding is more than the tax you actually owe, you receive a refund. If it is less, you owe the difference.

You can request withholding at any time by completing Form W-4V and sending it to your local Social Security office. You can also change or stop withholding. If you think you will owe tax on your SSDI, requesting withholding can help you avoid a large bill at tax time. If you are unsure how much to withhold, a tax preparer can estimate based on your total income.

Reporting SSDI on state tax returns

Most states do not tax SSDI, but a few do. States that tax SSDI include Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, and Vermont. If you live in one of these states and your SSDI is taxable under federal rules, you may also owe state tax on it.

State rules vary. Some states use the same combined income thresholds as the federal government; others have different thresholds or tax SSDI differently. Check your state's tax authority website or ask a tax preparer familiar with your state's rules. If you owe state tax, you report it on your state return using the same income figures you used for federal.

What to do if you made a mistake on a prior year return

If you filed a return in a previous year and did not report SSDI that should have been reported (or reported SSDI that should not have been), you can file an amended return. Use Form 1040-X for the year in question. You have three years from the original due date to amend and claim a refund, but the IRS can assess additional tax for up to ten years.

If you owe a small amount, filing the amended return and paying it is usually the simplest path. If you owe a large amount or are unsure whether you made an error, consider consulting a tax professional or calling the IRS at 1-800-829-1040. The IRS can also review your return if you are concerned about accuracy.

Frequently Asked Questions

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

No. If SSDI is your only income and you are not required to file for other reasons, you do not have to file a federal tax return. However, if you had federal tax withheld from your SSDI, filing allows you to claim a refund of that withholding.

What if I work part-time while receiving SSDI?

Your wages count toward combined income and may make part of your SSDI taxable. You must report the wages on your return. Additionally, if your earnings exceed the Social Security work incentive limits, your SSDI benefit amount itself may be reduced—this is separate from the tax question and is handled by Social Security, not the IRS.

Does my spouse's income count if we file jointly?

Yes. If you are married filing jointly, combined income includes both your income and your spouse's income. The threshold for married filing jointly is $32,000, which is higher than the single threshold of $25,000, but both incomes are added together.

Can I deduct medical expenses related to my disability?

You can deduct unreimbursed medical expenses only if they exceed 7.5 percent of your adjusted gross income, and only if you itemize deductions instead of taking the standard deduction. This is a separate calculation from whether your SSDI is taxable. A tax preparer can tell you whether itemizing benefits you.

What if Social Security made an error on my SSA-1099?

Contact Social Security directly to report the error. You can call 1-800-772-1213 or visit your local office. Social Security will issue a corrected SSA-1099 if needed. Keep the corrected form and use it when you file your return.