The short answer: it depends on your total income

You may owe federal income tax on your Social Security Disability Insurance (SSDI) benefits, but only if your total income exceeds a certain threshold. The threshold is low — often between $25,000 and $34,000 for single filers — which means many people receiving SSDI do end up owing tax on part of their benefits.

The IRS counts SSDI as income for tax purposes, but not all of it is taxable. The amount you actually owe tax on depends on what else you earned that year: wages from work, interest, pensions, or other sources. If your only income is SSDI and it is below the threshold, you owe nothing. If you have other income, the calculation becomes more complex.

State taxes work differently. Some states do not tax SSDI at all, while others tax it the same way the federal government does. A few states have their own rules. You need to check your state's rules separately.

Key Takeaways

  • You may owe federal tax on SSDI if your total income (including half of your SSDI benefits) exceeds $25,000 as a single filer or $32,000 as a married couple filing jointly.
  • The IRS uses a formula that counts only part of your SSDI as taxable income, not the full amount you receive.
  • If SSDI is your only income source, you typically owe no federal tax regardless of the amount.
  • State tax rules vary widely — some states do not tax SSDI at all, while others tax it like the federal government does.
  • Social Security sends Form SSA-1099 in January showing your SSDI income, which you use to file your tax return.

How the IRS calculates taxable SSDI

The IRS does not tax your entire SSDI payment. Instead, it uses a two-step formula that counts only a portion of your benefits as income. This is called the "combined income" test, and it is the same test Social Security uses to determine if you owe tax.

First, you add up your combined income: your adjusted gross income (wages, interest, pensions, and other sources) plus half of your SSDI benefits. Then you compare that total to the IRS threshold. For 2024, the thresholds are $25,000 for single filers and $32,000 for married couples filing jointly.

If your combined income is below the threshold, you owe no tax on your SSDI. If it exceeds the threshold, you may owe tax on up to 85 percent of your benefits, depending on how far over you go. The calculation is complex, and most people use tax software or a tax preparer to work through it.

Example: You receive $1,500 per month in SSDI ($18,000 per year) and earn $10,000 from part-time work. Your combined income is $10,000 plus half of $18,000 ($9,000), which equals $19,000. This is below the $25,000 threshold, so you owe no tax on your SSDI, even though you have other income.

When you have other income sources

If you have income beyond SSDI — wages, self-employment income, interest, dividends, rental income, or a pension — that income pushes you closer to or over the tax threshold. Even small amounts of other income can change whether you owe tax.

Work income is the most common second source. If you work part-time or full-time while receiving SSDI, your wages count toward the combined income calculation. This is one reason many people receiving SSDI worry about working: they are concerned about losing benefits or owing unexpected taxes. The tax issue is separate from the work incentive rules Social Security enforces, but both matter.

Interest and dividends from savings or investments also count, even if the amounts are small. Rental income, retirement account distributions, and income from a spouse's pension (if you file jointly) all factor in. The threshold is low enough that modest other income often triggers some tax liability on your SSDI.

What to do if SSDI is your only income

If SSDI is your sole source of income, you almost certainly owe no federal income tax, no matter how much you receive. The threshold of $25,000 is so high relative to typical SSDI payments that you would have to receive an unusually large benefit to hit it.

You still may want to file a tax return even if you owe nothing. If your employer withheld taxes from any wages you earned, filing allows you to claim a refund. If you have dependents, you may be able to claim the Earned Income Tax Credit or the Child Tax Credit, both of which require filing a return to receive the money.

Social Security will still send you Form SSA-1099 in January showing your SSDI income. Keep this form with your records. You do not have to file a return if you have no tax liability and no refund coming, but keeping the form proves you reported your income if the IRS ever asks.

State tax rules vary widely

Thirteen states tax SSDI the same way the federal government does: they use the combined income test and may tax up to 85 percent of your benefits. These states are Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, Vermont, and West Virginia. If you live in one of these states, you may owe state tax on your SSDI even if you owe no federal tax.

Thirty-seven states do not tax SSDI at all. If you live in one of these states, you owe no state income tax on your benefits, regardless of your other income. This is a significant advantage and is worth checking if you are considering moving or if you recently moved.

The remaining states have their own rules. Some tax SSDI only if your income exceeds a higher threshold than the federal one. Others exclude SSDI from taxation entirely for people over a certain age. A few have complex formulas that differ from both the federal rule and the standard state approach. You need to check your specific state's tax authority website or ask a tax preparer familiar with your state's rules.

How to report SSDI on your tax return

Social Security mails Form SSA-1099 to you in January each year. This form shows the total SSDI you received in the previous year. You use this form to report your SSDI income on your federal tax return.

On the federal return, you report SSDI on Form 1040, the main tax form. The instructions walk you through the combined income calculation. If you use tax software, you enter your SSA-1099 information and the software calculates how much of your SSDI is taxable. If you use a tax preparer, bring the SSA-1099 along with any other income documents.

If you owe state tax on SSDI, you report it on your state return using the same SSA-1099 form. State forms and instructions vary, so follow your state's specific guidance or ask a preparer.

If you did not receive an SSA-1099 by early February, contact Social Security at 1-800-772-1213 to request a replacement. Do not file your return without it — the IRS matches your reported income to the form Social Security sends them.

What happens if you owe tax on SSDI

If you owe tax on your SSDI, you pay it the same way you would pay tax on any other income: through your tax return. You can pay in full when you file, or if you cannot pay the full amount, you can set up a payment plan with the IRS.

You cannot have taxes withheld directly from your SSDI payment the way you can with wages. This means you are responsible for setting aside money to pay taxes if you expect to owe. Some people make quarterly estimated tax payments to the IRS if they know they will owe a large amount. Others wait and pay when they file their return.

If you owe back taxes from previous years, Social Security can offset your SSDI to collect the debt, but only in limited circumstances. The IRS can also offset your SSDI to collect unpaid federal taxes, though this is rare. If you receive a notice that your SSDI is being offset, contact the agency listed on the notice when ready.

Frequently Asked Questions

If I work part-time, will I definitely owe tax on my SSDI?

Not necessarily. It depends on how much you earn. If your wages plus half your SSDI benefits stay below $25,000 (or $32,000 if married), you owe no federal tax on your SSDI. Many people earning modest wages from part-time work stay below this threshold.

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

You are not required to file if SSDI is your only income and you owe no tax. However, filing may benefit you if you had taxes withheld from any other income or if you have dependents and may be may have access to to credits. Check the IRS website or ask a tax preparer whether filing makes sense for your situation.

Can Social Security withhold taxes from my SSDI payment?

No. Unlike wages, SSDI payments cannot have taxes withheld. You are responsible for paying any taxes you owe when you file your return or through quarterly estimated payments if you expect to owe a large amount.

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

Your state tax obligation is based on where you live when you file your return, not where you lived when you received the income. If you moved to a state that taxes SSDI, you may owe state tax on benefits you received while living there. Check with your new state's tax authority about how to report income from previous states.

Where can I get help figuring out if I owe tax on SSDI?

The IRS offers free tax preparation through the Volunteer Income Tax information (VITA) program if your income is below a certain level. You can also contact a tax preparer or CPA. Social Security cannot advise you on taxes, but their website has links to IRS resources about SSDI and taxation.