Whether you have to file taxes on SSDI alone

If SSDI is your only income, you usually do not have to file a federal tax return. Social Security Disability Insurance benefits are not taxable income in the way wages are. The Internal Revenue Service (IRS) does not count SSDI as earned income, and most people who receive only SSDI will have no tax filing requirement.

However, the rule has one important exception: if you also receive other income—even a small amount from a job, interest, or rental property—the situation changes. You may then owe taxes on part of your SSDI, depending on your total income. The threshold is low enough that even modest side income can trigger a filing requirement.

The safest approach is to check your specific situation rather than assume. The IRS provides a worksheet to calculate whether your benefits are taxable, and the Social Security Administration sends you a form each year that shows exactly what you received.

Key Takeaways

  • SSDI by itself is not taxable income, so you typically do not file a federal return if it is your only source of money.
  • If you have any other income—wages, self-employment, interest, or rental income—you may owe taxes on a portion of your SSDI.
  • Social Security sends you a form SSA-1099 each January showing your total SSDI for the previous year, which you use to calculate whether you owe taxes.
  • The IRS worksheet for determining taxable SSDI is free and available on IRS.gov, or you can contact the Social Security Administration for help.

How the IRS counts SSDI income

The IRS uses a formula called "combined income" to decide whether any of your SSDI becomes taxable. Combined income includes your SSDI, plus half of your SSDI, plus any other income you received. That sounds circular, but it is the actual rule: you add your SSDI amount twice (once in full, once at 50 percent) and then add everything else.

If your combined income stays below a threshold, none of your SSDI is taxable. For 2024, that threshold is $25,000 if you file as single, and $32,000 if you file as married filing jointly. These thresholds do not change year to year in the way other tax brackets do—Congress has not raised them since 1984.

If your combined income exceeds the threshold, you may owe taxes on up to 85 percent of your SSDI. The exact amount depends on how far over the threshold you go. This is why even a small amount of other income can matter: if you are close to the threshold, a few hundred dollars in interest or part-time wages can push you over and create a tax bill.

What counts as income for this calculation

For the combined income calculation, the IRS counts wages, self-employment income, interest, dividends, rental income, and certain other sources. It does not count Supplemental Security Income (SSI), which is a different program, or certain veterans' benefits. It also does not count money you receive as a gift or an inheritance.

If you work part-time while receiving SSDI, your wages count in full. If you have a savings account that earns interest, that interest counts. If you receive a pension from a former job, that counts. The rule is broad: almost any money that came to you during the year, except gifts and certain government benefits, goes into the combined income calculation.

One source that surprises people: if you have a Roth IRA or traditional IRA and you withdraw money from it, that withdrawal counts as income for this purpose. The same is true for distributions from a 401(k) or other retirement account. If you are considering withdrawing retirement savings, it is worth checking whether it will push you into owing taxes on your SSDI.

When you receive the form that shows your SSDI

Each January, the Social Security Administration mails you a form called SSA-1099 (or SSA-1099-SM if you receive Medicaid). This form shows the total SSDI you received in the previous calendar year. You use this number to fill out the IRS worksheet and determine whether you owe taxes.

If you also received Supplemental Security Income (SSI) in the same year, you will receive a separate form for that. SSI is never taxable, but you need to keep the forms separate because they are reported differently.

You should receive the SSA-1099 by January 31st. If you do not receive it by early February, you can request a copy by calling Social Security at 1-800-772-1213 or by visiting your local Social Security office. You will need your Social Security number and the year you are asking about.

How to use the IRS worksheet

The IRS publishes a worksheet in Publication 915, which is free and available on IRS.gov. The worksheet walks you through the combined income calculation step by step. You do not need to understand tax law to use it—you just follow the lines and add numbers where it tells you to.

Start by writing down your SSDI amount from your SSA-1099. Then add half that amount. Then add all your other income (wages, interest, dividends, and so on). That total is your combined income. Compare it to the threshold for your filing status. If you are under the threshold, you are done—you do not owe taxes on your SSDI.

If you are over the threshold, the worksheet continues and shows you how much of your SSDI becomes taxable. This part is more complex, but the worksheet does the math for you. You just fill in the blanks and follow the arrows.

What to do if you owe taxes on SSDI

If the worksheet shows that part of your SSDI is taxable, you will file a standard federal tax return (Form 1040) and report the taxable portion on the appropriate line. You will also report all your other income on the return. The IRS will then calculate your tax liability based on your total income.

You can file the return yourself using free tax software if your situation is straightforward, or you can pay a tax preparer to file for you. Many communities offer free tax preparation through the IRS Volunteer Income Tax information (VITA) program, which is open to people with low to moderate income. You can find a VITA site near you on IRS.gov.

If you owe taxes, you can pay in full when you file, or you can set up a payment plan with the IRS. If you cannot pay the full amount, paying what you can and setting up a plan is better than not filing at all, because it stops penalties and interest from growing.

Withholding taxes from your SSDI

If you know you will owe taxes on your SSDI, you have the option to have the Social Security Administration withhold taxes directly from your monthly benefit. This works the same way withholding works from a paycheck: money is taken out each month, and you owe less (or nothing) when you file your return.

To set up withholding, you fill out Form W-4V and send it to your local Social Security office or mail it to Social Security. You choose what percentage you want withheld—typically 10, 15, 25, or 35 percent. The withheld amount is sent to the IRS on your behalf.

Withholding is optional, but it can make tax time easier if you know you will owe. Instead of owing a lump sum in April, you pay a little each month and may get a refund if too much was withheld. You can change your withholding at any time by submitting a new Form W-4V.

Frequently Asked Questions

Do I have to file taxes if SSDI is my only income and I am under the threshold?

No. If SSDI is your only income and your combined income is below $25,000 (single) or $32,000 (married filing jointly), you have no federal tax filing requirement. You do not have to file a return or contact the IRS.

What if I earned $500 from a part-time job and receive SSDI?

You would add your SSDI amount, plus half your SSDI, plus the $500 in wages. If that total exceeds the threshold for your filing status, part of your SSDI becomes taxable and you must file a return. The $500 in wages is always taxable income regardless.

Does my state charge income tax on SSDI?

Most states do not tax SSDI. However, a few states—including Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, and Vermont—tax SSDI under certain circumstances. Check your state's tax website or contact your state tax authority to learn your state's rules.

Can I file taxes electronically if I owe taxes on SSDI?

Yes. You can file electronically using free IRS software, through a tax preparer, or by mail. Electronic filing is faster and reduces errors. If you use free software, the IRS will tell you whether you owe taxes or are due a refund before you submit.

What happens if I do not file taxes when I owe them?

The IRS will charge penalties and interest on the amount you owe. The longer you wait, the larger the bill becomes. If you cannot pay in full, filing the return and setting up a payment plan stops the penalties from growing and shows the IRS you are working to resolve the debt.