You may owe federal income tax on part or all of your SSDI benefits, depending on your total income and filing status
Social Security Disability Insurance (SSDI) is not automatically tax-free. The IRS taxes a portion of your benefits if your combined income exceeds a certain threshold. Combined income includes your SSDI payments plus half of what you receive, plus any other income—wages, interest, pensions, or tax-exempt bond interest.
The threshold depends on your filing status. For a single filer, the threshold is $25,000. For married filing jointly, it is $32,000. If you are married filing separately, the threshold is $0—meaning any combined income at all may trigger taxation. These thresholds have not changed since 1984 and do not adjust for inflation.
If your combined income stays below the threshold, you owe no federal tax on your SSDI. If it exceeds the threshold, you may owe tax on up to 50 percent of your benefits, or in some cases up to 85 percent. The exact amount depends on how far above the threshold you are.
Key Takeaways
- SSDI becomes taxable only if your combined income—SSDI plus half your SSDI plus other income—exceeds $25,000 (single) or $32,000 (married filing jointly).
- You calculate combined income by adding your SSDI amount, half your SSDI amount again, and all other income including wages, pensions, and tax-exempt interest.
- The IRS taxes between 50 and 85 percent of your benefits depending on how much your combined income exceeds the threshold.
- You report SSDI on Form 1040 or Form 1040-SR; the Social Security Administration sends you a Form SSA-1099 each January showing what you received.
- Some states also tax SSDI benefits, though most do not; check your state tax agency's rules if you live in a state with income tax.
How to Calculate Your Combined Income
Combined income is not the same as your total income. The IRS uses a specific formula. Start with your Adjusted Gross Income (AGI)—wages, self-employment income, pensions, interest, dividends, and other income sources. Then add back any tax-exempt interest (such as from municipal bonds) and half of your SSDI benefits.
For example: You receive $1,500 per month in SSDI ($18,000 per year). You also work part-time and earn $15,000 in wages. Your combined income is $15,000 (wages) + $9,000 (half your SSDI) + $18,000 (your full SSDI) = $42,000. Since you are single and the threshold is $25,000, your combined income exceeds the threshold by $17,000. You will owe tax on a portion of your benefits.
If you have no other income besides SSDI, your combined income is only half your SSDI amount. For example, if you receive $18,000 in SSDI and nothing else, your combined income is $9,000—well below the $25,000 threshold. You owe no federal tax.
How Much of Your SSDI Is Taxable
The taxable portion depends on how far above the threshold you are. The IRS uses a two-tier system. The first tier applies if your combined income is between the threshold and $9,000 more (for single filers; $12,000 more for married filing jointly). The second tier applies if your combined income exceeds that amount.
| Filing Status | First Threshold | Second Threshold | Tax at First Tier | Tax at Second Tier |
|---|---|---|---|---|
| Single | $25,000 | $34,000 | Up to 50% of benefits | Up to 85% of benefits |
| Married filing jointly | $32,000 | $44,000 | Up to 50% of benefits | Up to 85% of benefits |
| Married filing separately | $0 | N/A | Up to 85% of benefits | N/A |
The calculation is complex because the IRS does not tax a flat percentage. Instead, it taxes the lesser of two amounts: either 50 percent of the amount your combined income exceeds the first threshold, or 50 percent of your total SSDI benefits. Then, if your combined income exceeds the second threshold, it adds tax on the lesser of either 85 percent of the excess over the second threshold, or 85 percent of your remaining untaxed benefits.
Most people do not calculate this themselves. The Social Security Administration provides a worksheet in Publication 915, and many tax software programs calculate it automatically once you enter your SSDI amount.
Reporting SSDI on Your Tax Return
You report SSDI on your federal income tax return using Form 1040 or Form 1040-SR (for people 65 and older). The Social Security Administration sends you a Form SSA-1099 in January of each year showing the total SSDI you received in the previous year. You use this form to fill in the SSDI line on your return.
If you are required to file a return—meaning your income exceeds the filing threshold for your age and status—you must include your SSDI even if none of it is taxable. The IRS uses the information to verify your income and cross-check your return.
If you are not required to file but some of your SSDI is taxable, you can still file to claim a refund of taxes withheld. You may also want to file to claim the Earned Income Tax Credit (EITC) if you work and your income is low enough.
State Income Tax on SSDI
Most states do not tax SSDI benefits. However, a few states do: Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, and Vermont all tax SSDI to some degree. The rules vary by state—some tax it the same way the federal government does, others use different thresholds or percentages.
If you live in one of these states, contact your state tax agency or check their website to learn the rules. You may owe state tax even if you owe no federal tax, or vice versa. Some states offer credits or deductions for SSDI that reduce your state tax burden.
Withholding and Estimated Tax Payments
The Social Security Administration does not automatically withhold federal income tax from your SSDI payments. If you expect to owe tax, you have two options: request voluntary withholding, or make estimated tax payments to the IRS.
To request withholding, complete Form W-4V and send it to your local Social Security office. You can choose to have 7, 10, 12, or 22 percent of your monthly benefit withheld. This is the simpler route if you want the IRS to hold money from your check each month.
Alternatively, you can make quarterly estimated tax payments directly to the IRS using Form 1040-ES. This gives you more control over the amount withheld but requires you to calculate and pay four times per year. If you owe a large amount of tax and do not withhold or pay estimated taxes, you may owe a penalty when you file.
What Happens If You Underreport or Do Not File
If you owe tax on your SSDI and do not pay it, the IRS can assess penalties and interest. The penalty for not filing is usually 5 percent of the unpaid tax per month, up to 25 percent total. The penalty for underpaying is 0.5 percent per month. Interest accrues daily at a rate set quarterly by the IRS (currently around 8 percent annually, but this changes).
If the IRS discovers unreported SSDI income, it will send you a notice and a bill. You have the right to dispute the amount or request a payment plan. If you cannot pay in full, you can request an installment agreement with the IRS, which allows you to pay over time.
Frequently Asked Questions
If I have no other income, do I ever owe tax on SSDI?
No. If SSDI is your only income, your combined income is half your SSDI amount, which will always be below the threshold ($25,000 for single filers). You owe no federal tax and do not need to file a return.
Does working part-time while on SSDI affect my tax bill?
Yes. Wages count as income and are included in your combined income calculation. Even a small amount of work income can push you over the threshold and make part of your SSDI taxable. However, you may also become may be able to access for the Earned Income Tax Credit, which could offset the tax.
Can I reduce my taxable SSDI by making charitable donations?
No. Charitable donations reduce your overall tax liability, but they do not change the amount of SSDI that is subject to tax. The taxable portion of SSDI is determined by your combined income, not by deductions.
What if I disagree with the amount on my SSA-1099?
Contact the Social Security Administration directly. You can call 1-800-772-1213 or visit your local office. Bring your records showing what you actually received. If there is an error, Social Security will issue a corrected form. Do not file your tax return until you have the correct amount.
Do I have to file taxes if I am over 65 and only receive SSDI?
No, not unless your combined income exceeds the filing threshold for your age. For 2024, a single person 65 or older with only SSDI income does not need to file unless their combined income exceeds $20,350. However, you may want to file anyway to claim a refund of withheld taxes.