Most SSDI recipients do not have to file federal income taxes, but some do

Whether you file taxes on your SSDI income depends on how much you earned that year and whether you have other income sources. The Social Security Administration does not consider SSDI payments taxable income for most people. However, if your total income — including SSDI, wages, interest, or other sources — crosses certain thresholds, you must file a federal return and may owe tax on a portion of your benefits.

The threshold that matters is called combined income. It is calculated as your adjusted gross income plus nontaxable interest plus half of your SSDI benefits. If your combined income exceeds $25,000 (or $32,000 if you are married filing jointly), you may have to include part of your SSDI in your taxable income. If it stays below those amounts, you file only if you have other income that requires a return.

The IRS does not automatically know you receive SSDI. You have to report it yourself on your tax return if you are required to file. The Social Security Administration sends you a Form SSA-1099 each January showing how much you received the previous year — this is for your records and the IRS, not a tax form itself.

Key Takeaways

  • SSDI income is not taxable unless your combined income (SSDI plus other earnings) exceeds $25,000 single or $32,000 married filing jointly.
  • You receive a Form SSA-1099 in January showing your prior-year SSDI payments, which you use to calculate combined income.
  • If you must file taxes and your combined income exceeds the threshold, only a portion of your SSDI becomes taxable — never more than 85 percent.
  • You must file a return if you have wages, self-employment income, or other earnings above the standard deduction, regardless of SSDI.
  • State income tax rules vary; some states tax SSDI and some do not, even when the federal government does not.

How to calculate whether you cross the income threshold

Start by adding up your income for the year. Include W-2 wages, self-employment income, interest, dividends, rental income, and any other earnings. Do not include SSDI yet. This is your adjusted gross income.

Next, add any nontaxable interest you received — usually from municipal bonds or certain savings bonds. Then add half of your SSDI benefits for the year. The total of these three numbers is your combined income. If it is $25,000 or less (single) or $32,000 or less (married filing jointly), you do not owe tax on your SSDI, though you may still need to file if you have other income.

If your combined income exceeds those thresholds, you do owe tax on part of your SSDI. The IRS uses a two-tier formula to calculate how much. At the first tier, if combined income exceeds $25,000 (single) or $32,000 (married), up to 50 percent of your SSDI may be taxable. At the second tier, if combined income exceeds $34,000 (single) or $44,000 (married), up to 85 percent of your SSDI may be taxable. The exact amount depends on how far you exceed the threshold.

The calculation is complex enough that most people use tax software or a tax preparer. You can also use the IRS worksheet in Publication 915, which walks through the formula step by step.

When you must file a return even if SSDI is not taxable

You have to file a federal return if your income from sources other than SSDI exceeds the standard deduction for your filing status and age. For 2024, the standard deduction is $14,600 for a single person under 65, $17,550 for a single person 65 or older, $29,200 for married filing jointly under 65, and $30,750 for married filing jointly with at least one spouse 65 or older. These amounts change each year.

If you worked and earned wages, you must file if your W-2 income alone exceeds your standard deduction. If you are self-employed, you must file if your net self-employment income is $400 or more. If you have interest, dividends, capital gains, or other investment income, you may need to file even if the amount is small.

The point is that SSDI does not exempt you from filing. If you have any other income source that pushes you over the standard deduction, you file a return. When you do, you report your SSDI on that return — and if your combined income is high enough, part of it becomes taxable.

What happens if your SSDI becomes partially taxable

If your combined income exceeds the threshold, the IRS does not tax all of your SSDI. Instead, it taxes only the amount calculated by the two-tier formula. In most cases, this means 50 percent of the amount over the first threshold is taxable. If you are well over the second threshold, up to 85 percent of your SSDI can be taxable, but never more than that.

The taxable portion is added to your other income and taxed at your ordinary income tax rate. If you are in the 12 percent tax bracket, you pay 12 percent on that portion. If you are in the 22 percent bracket, you pay 22 percent. The tax is not automatically withheld from your SSDI check — you either pay it when you file or make quarterly estimated tax payments if you expect to owe more than $1,000.

You report the taxable portion of your SSDI on line 5b of Form 1040. The IRS provides a detailed worksheet to calculate this amount. If you use tax software, it usually calculates it for you once you enter your SSDI amount and other income.

State income tax rules for SSDI

Thirteen states tax SSDI benefits: Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, Vermont, and West Virginia. The rules in these states vary. Some follow the federal formula closely. Others have their own thresholds or allow exemptions based on age or disability status.

If you live in one of these states and your SSDI is taxable at the federal level, check your state's tax rules or contact your state tax agency. You may owe state tax even if you do not owe federal tax, or vice versa. Some states allow you to exclude SSDI if you are over a certain age or meet other conditions. Others tax it the same way the IRS does.

The remaining 37 states do not tax SSDI benefits at all, regardless of your income level. If you live in one of those states, you do not file state tax on your SSDI even if the IRS requires you to file federally.

How to report SSDI on your tax return

You report SSDI on Form 1040, the main federal income tax return. In the income section, you list your SSDI on line 5a. On line 5b, you enter the taxable portion — which is zero if your combined income does not exceed the threshold, or the amount calculated by the IRS formula if it does.

You do not need to attach the Form SSA-1099 to your return, but you should keep it with your tax records. If the IRS questions your SSDI income, the SSA-1099 is your proof of what you received.

If you use tax software, you enter your SSDI amount when prompted, and the software calculates the taxable portion automatically. If you use a tax preparer, bring your SSA-1099 and any other income documents. The preparer will handle the calculation and file the return for you.

What to do if you did not file and think you should have

If you did not file a return in a year when you should have, you can file it now. There is no time limit on filing a return if you are owed a refund. If you owe tax, the IRS charges interest and penalties starting from the original due date, but filing late is still better than not filing at all.

You can file prior-year returns using the same Form 1040 and the tax rules that applied in that year. If you need help, a tax preparer or the IRS Free File program (if your income qualifies) can information. The IRS also has a phone line for taxpayers with SSDI questions: 1-800-829-1040.

If you owe back taxes, you can set up a payment plan with the IRS. You do not have to pay the full amount at once. The IRS offers installment agreements that let you pay over time, and you can request a reduction in penalties if you have a reasonable cause for not filing.

Frequently Asked Questions

Do I have to file taxes if I only receive SSDI and no other income?

No. If SSDI is your only income and your combined income does not exceed $25,000 (single) or $32,000 (married filing jointly), you do not have to file a federal return. SSDI alone does not trigger a filing requirement.

What if I earned wages and received SSDI in the same year?

You must file if your wages plus SSDI combined income exceeds the threshold. Calculate combined income as your wages plus half your SSDI. If that total is over $25,000 (single) or $32,000 (married), you file and report both income sources. Part of your SSDI may become taxable depending on how far over the threshold you are.

Will the IRS automatically know I received SSDI?

The Social Security Administration reports SSDI payments to the IRS, but you are responsible for reporting them on your return. The IRS matches your return against SSA records. If you do not report SSDI you received, the IRS will notice and send you a notice of underreporting.

Can I claim SSDI as a dependent on someone else's return?

SSDI is not considered earned income, so it does not affect whether you can be claimed as a dependent. However, if you are claimed as a dependent, your standard deduction is lower, which may require you to file even if your income is low. Check with a tax preparer if you are unsure.

What if I disagree with the taxable amount the IRS calculated?

You can file Form 1040-X (Amended U.S. Individual Income Tax Return) to correct your return if you believe the calculation is wrong. Attach a statement explaining the error and recalculate using the IRS worksheet in Publication 915. If the IRS still disagrees, you can appeal through the IRS dispute process or consult a tax professional.