Whether you owe federal income tax on SSDI depends on your total income, not just your disability payments
You may owe federal income tax on your Social Security Disability Insurance (SSDI) benefits, but only if your combined income exceeds a certain threshold. Combined income includes your SSDI payments plus wages, interest, dividends, and other income sources. The IRS calls this "combined income," and it determines whether any portion of your benefits becomes taxable.
The threshold is low: $25,000 for a single filer, $32,000 for married filing jointly, and $0 for married filing separately. If you're under the threshold, you owe no federal tax on your SSDI. If you're over it, up to 85% of your benefits may be taxable, though the actual percentage depends on how far over the threshold you are.
Most people receiving SSDI alone—with no other income—pay no federal tax. The problem arises when you have wages, self-employment income, or investment income alongside your SSDI payments.
Key Takeaways
- You calculate whether SSDI is taxable by adding your benefits to all other income; if the total exceeds $25,000 (single) or $32,000 (married filing jointly), some benefits become taxable.
- The IRS does not automatically withhold taxes from SSDI payments, so you may need to pay estimated taxes quarterly or request withholding on Form W-4V.
- You must file a tax return if your combined income exceeds the threshold, even if no tax is owed, because the IRS needs to calculate how much of your benefits is taxable.
- State income tax rules vary; some states tax SSDI and some do not, regardless of federal rules.
- If you work while receiving SSDI, your earnings count toward combined income and can push you over the taxable threshold.
How the IRS calculates combined income
Combined income is not the same as your adjusted gross income (AGI). The IRS starts with your AGI, adds back certain deductions (like student loan interest), and then adds one-half of your SSDI benefits. That total is your combined income for tax purposes.
For example: You receive $15,000 in SSDI for the year and earn $12,000 in wages. Your combined income is $12,000 + (½ × $15,000) = $19,500. Since $19,500 is under $25,000, you owe no federal tax on your SSDI, though you may owe tax on your wages depending on the amount.
If instead you received $15,000 in SSDI and $20,000 in wages, your combined income would be $20,000 + $7,500 = $27,500. Now you're $2,500 over the threshold, and the IRS will calculate how much of your $15,000 in benefits becomes taxable. In this scenario, roughly $1,700 to $2,000 of your benefits would be taxable.
When you must file a tax return
You must file a federal tax return if your combined income exceeds the threshold for your filing status, even if you expect no tax to be owed. Filing is how the IRS determines whether any of your SSDI is taxable and calculates the exact amount.
If you have wages, you may be required to file anyway because of standard income thresholds for employment income. For 2024, a single person under 65 must file if their gross income is $14,600 or more. Check the IRS website or Form 1040 instructions for the year you're filing to confirm your specific threshold.
If you don't file when required, the IRS may assess penalties and interest, and you could lose out on refundable credits like the Earned Income Tax Credit (EITC) if you're working.
Withholding and estimated tax payments
The Social Security Administration does not automatically withhold federal income tax from SSDI payments. This means you may owe a lump sum when you file, or you may need to pay estimated taxes throughout the year to avoid penalties.
If you expect to owe tax, you have two options. First, you can request that Social Security withhold a flat amount from each monthly payment using Form W-4V. You can choose to withhold 7%, 10%, 12%, or 22% of your benefit amount. Second, you can make quarterly estimated tax payments directly to the IRS using Form 1040-ES.
Many people find withholding simpler because it happens automatically each month. To request withholding, complete Form W-4V and mail it to your local Social Security office, or submit it online through your my Social Security account.
State income tax on SSDI
Federal tax rules do not apply to state income tax. Some states do not tax SSDI at all, while others follow federal rules, and a few have their own thresholds. States that do not tax SSDI include California, Florida, Illinois, Mississippi, Pennsylvania, and others. States that do tax SSDI include Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, and Vermont.
If you live in a state that taxes SSDI, you may owe state income tax even if you owe no federal tax. Check your state's tax authority website or contact them directly to learn the rules for your state and filing year.
Working while receiving SSDI and tax implications
If you work and receive SSDI, your wages count toward combined income and can make your benefits taxable. Additionally, if your earnings exceed the substantial gainful activity (SGA) limit, Social Security may suspend your benefits entirely—but that is a separate issue from taxation.
For 2024, the SGA limit is $1,550 per month for non-blind individuals and $2,590 for blind individuals. If you earn more than this, Social Security will review your case. However, the trial work period and extended may be able to access rules may allow you to work and keep benefits for a time. Consult Social Security directly about how work affects your benefits.
From a tax standpoint, your wages plus half your SSDI benefits determine whether you owe tax. If you're working part-time and earning $10,000 while receiving $12,000 in SSDI, your combined income is $16,000—likely under the threshold. But if you earn $20,000, your combined income jumps to $26,000, and some of your benefits become taxable.
What to do if you owe back taxes on SSDI
If you discover you owe federal income tax from prior years on SSDI you received, you can file amended returns for those years using Form 1040-X. The IRS generally allows you to go back three years to claim a refund or correct an error, though you can file older returns if you wish.
If you cannot pay the full amount owed, the IRS offers payment plans and other options. You can request an installment agreement online, by phone, or by mail. Contact the IRS directly at 1-800-829-1040 to discuss your situation and set up a plan.
Do not ignore a tax bill. The IRS can place a levy on your bank account or garnish other income sources if you do not respond. Acting early gives you more options.
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, your combined income is half your SSDI amount, which is almost always under the $25,000 threshold. You have no filing requirement and owe no federal tax. However, if you have any other income—wages, interest, rental income—you must check whether your combined income exceeds the threshold.
Can I request that Social Security withhold taxes from my monthly payment?
Yes. Complete Form W-4V and submit it to Social Security. You can choose to withhold 7%, 10%, 12%, or 22% of your monthly benefit. This is the easiest way to avoid owing a large amount when you file your return.
What happens if I don't file a tax return when I'm supposed to?
The IRS may assess penalties and interest on any tax owed. You also lose the opportunity to claim refundable credits like the Earned Income Tax Credit. If you realize you missed a filing deadline, file as soon as possible and contact the IRS about penalty relief if you have a reasonable cause.
Does my state tax SSDI the same way the federal government does?
No. State rules vary widely. Some states do not tax SSDI at all, while others follow federal rules or have their own thresholds. Check your state's tax authority website to learn the rules for your state.
If I work part-time and receive SSDI, will my wages make my benefits taxable?
Yes. Your wages count toward combined income. If your wages plus half your SSDI benefits exceed $25,000 (or $32,000 if married filing jointly), some of your benefits become taxable. Additionally, if your earnings exceed the SGA limit, Social Security may suspend your benefits, which is a separate concern from taxation.