You must report SSDI income to the IRS, but whether you owe tax on it depends on your total income

The short answer: yes, you report it. The IRS requires you to list all SSDI benefits received on your tax return, even if you owe no tax on them. You do this on Form 1040 using a worksheet the IRS provides. However, you may owe no tax on that income—or only tax on a portion of it—depending on how much other income you have and your filing status.

This distinction matters because many people assume "report it" means "pay tax on it." They are not the same thing. The IRS wants to see the number. Whether that number triggers a tax bill is a separate calculation.

Key Takeaways

  • You must report all SSDI benefits on Form 1040, line 5b, even if you owe no tax on them.
  • Tax is owed only if your combined income (SSDI plus wages, interest, and other sources) exceeds a threshold that depends on your filing status and whether you are married.
  • The IRS Worksheet for Line 5b walks you through the calculation step by step; you do not need to hire a tax preparer to use it.
  • If you receive both SSDI and SSI (Supplemental Security Income), only the SSDI portion is reported on your tax return.
  • You can request that the Social Security Administration withhold federal income tax from your SSDI payments if you expect to owe tax.

How the IRS calculates whether SSDI is taxable

The IRS uses a formula based on your combined income, which includes SSDI plus all other income sources: wages, self-employment income, interest, dividends, rental income, and pensions. The formula produces a number called provisional income. If your provisional income falls below a threshold, none of your SSDI is taxable. If it exceeds the threshold, up to 85 percent of your SSDI may be taxable.

The thresholds are:

  • Single filers: $25,000
  • Married filing jointly: $32,000
  • Married filing separately: $0 (almost all SSDI becomes taxable)

These thresholds have not changed since 1984. They are not adjusted for inflation, which means more people cross them each year as wages and other income rise.

The calculation itself is not done on the main tax form. Instead, you use the Worksheet for Line 5b in the Form 1040 instructions, which the IRS publishes each year. The worksheet walks you through the steps: add your SSDI to your other income, explore the formula, and determine the taxable portion. The result goes on line 5b of Form 1040.

When you owe no tax on SSDI

If your combined income is below the threshold for your filing status, you owe no federal income tax on your SSDI, and you may not need to file a return at all. However, the IRS still wants to see the SSDI amount reported, so filing is often the right choice even if you owe nothing.

Example: You are single, receive $15,000 in SSDI for the year, and have no other income. Your combined income is $15,000, which is below the $25,000 threshold. None of your SSDI is taxable. You owe no federal income tax. You may still file a return to claim the Earned Income Tax Credit (EITC) if you have any wages, or straightforward to have a record on file with the IRS.

If you have very low income and do not file, the IRS will not pursue you. However, if you are may have access to to a refund (for example, because your employer withheld too much tax), you must file within three years to claim it.

When you owe tax on part of your SSDI

If your combined income exceeds the threshold, the IRS taxes up to 50 percent of your SSDI at first, and then up to an additional 35 percent if your income is very high. In practice, this means between 0 and 85 percent of your SSDI becomes taxable income.

Example: You are single, receive $18,000 in SSDI, earn $12,000 in wages, and have $500 in interest income. Your combined income is $30,500, which exceeds the $25,000 threshold by $5,500. Using the Worksheet for Line 5b, you calculate that $2,750 of your SSDI is taxable (50 percent of the amount over the threshold). You report $30,500 in total income and $2,750 in taxable SSDI. Your tax bill depends on your tax bracket, but you owe federal income tax on that $2,750 plus your $12,000 in wages.

The exact amount of SSDI that becomes taxable depends on how far your combined income exceeds the threshold and whether you have income above a second, higher threshold ($34,000 for single filers, $44,000 for married filing jointly). The Worksheet for Line 5b handles both tiers of the calculation.

Reporting SSDI on Form 1040

SSDI goes on line 5b of Form 1040. You will receive a Form SSA-1099 from Social Security each January showing the total SSDI you received in the prior year. Use that form to fill in line 5b. If you received benefits for only part of the year, the SSA-1099 will show the actual amount.

Line 5a on Form 1040 is for Social Security benefits that are not taxable (which is rare). Line 5b is where SSDI and regular Social Security retirement benefits go. The form itself does not distinguish between them—both use the same line. The Worksheet for Line 5b is where you do the math to determine how much is taxable.

If you file electronically, tax software will walk you through the worksheet automatically. If you file by hand, you complete the worksheet on paper, keep it with your records, and write only the final taxable amount on line 5b. You do not mail the worksheet to the IRS.

Withholding tax from your SSDI payments

If you know you will owe tax on your SSDI, you can ask Social Security to withhold federal income tax from your monthly payments. This works the same way as withholding from a paycheck: you pay a little each month instead of a large bill when you file.

To request withholding, complete Form W-4V (Voluntary Withholding Request) and submit it to your local Social Security office or mail it to Social Security. You can choose to withhold 7, 10, 15, or 25 percent of your monthly benefit. Social Security will begin withholding the following month.

Withholding is optional. Many people choose it to avoid a surprise tax bill in April. Others prefer to keep the full payment each month and pay tax when they file. There is no penalty either way—withholding is straightforward a convenience.

SSDI versus SSI: what gets reported

SSDI (Social Security Disability Insurance) is reported on your tax return as described above. SSI (Supplemental Security Income) is not reported on your tax return and is never taxable. If you receive both, you will see both amounts on your SSA-1099, clearly labeled. Report only the SSDI portion on line 5b.

Some people receive SSDI and SSI in the same month. Social Security separates the two on your SSA-1099 so you know which is which. If you are unsure, call Social Security at 1-800-772-1213 and ask them to clarify your SSA-1099 before you file.

State and local income tax

Most states do not tax SSDI. However, a few states—including Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, and West Virginia—tax SSDI the same way the federal government does, using the same thresholds and formulas. If you live in one of these states, you will owe state income tax on the same portion of SSDI that is taxable federally.

A smaller number of states tax SSDI under different rules. Check your state's tax agency website or call them directly to learn how SSDI is treated in your state. Your state tax return will have its own line for SSDI, similar to the federal form.

Local income taxes (city or county) rarely explore to SSDI. If your locality has an income tax, contact the local tax office to confirm.

Frequently Asked Questions

Do I have to file a tax return if I only receive SSDI and owe no tax?

No, you are not required to file if you owe no tax. However, filing is often worth doing anyway if you have any wages (to claim the EITC), if you had taxes withheld that you want refunded, or straightforward to have a record on file with the IRS. If you do not file and are owed a refund, you have three years to claim it.

What if I made a mistake on a prior year's return and did not report my SSDI?

You can file an amended return using Form 1040-X for any year within three years of the original due date. The IRS rarely pursues SSDI reporting errors if the amount owed is small, but amending is the safest approach. Consider consulting a tax preparer or calling the IRS at 1-800-829-1040 for guidance on your specific situation.

Can I deduct medical expenses or disability-related costs from my SSDI income?

No. SSDI is reported as income on line 5b, but you cannot deduct disability-related expenses against it. You can deduct medical expenses only if you itemize deductions on Schedule A and they exceed 7.5 percent of your adjusted gross income—a high threshold for most people. Work-related expenses may be deductible under other rules if you are working.

If I work and receive SSDI, how do I report both on my taxes?

Wages go on line 1 of Form 1040 (or Schedule C if you are self-employed). SSDI goes on line 5b. Both are included in your combined income for the purpose of calculating how much SSDI is taxable. The Worksheet for Line 5b will add them together automatically.

What if Social Security sent me an incorrect SSA-1099?

Contact Social Security when ready at 1-800-772-1213 and ask them to correct it. They can issue a corrected form (Form SSA-1099-Corrected) before tax season. Do not file your return until you have the correct amount. If you already filed and the amount was wrong, file an amended return once you receive the corrected form.