SSDI is reported to the IRS, but it may not be taxable income

Social Security Disability Insurance (SSDI) payments show up on your tax return as income that the IRS knows about. The Social Security Administration sends you a form SSA-1099 each January listing what you received the previous year. However, whether you actually owe federal income tax on that money depends on your total income from all sources—not just SSDI alone.

The IRS uses a formula called "combined income" to decide if your SSDI is taxable. Combined income includes your SSDI payments plus half of those payments plus any other income you have (wages, interest, pensions, and so on). If your combined income stays below a certain threshold, your SSDI is not taxable. If it goes above that threshold, a portion of your SSDI becomes taxable income.

The threshold amounts are set by federal law and do not change year to year. For a single filer in 2024, the first threshold is $25,000. For married filing jointly, it is $32,000. These thresholds have been the same since 1984 and are not adjusted for inflation, which means more people's SSDI becomes taxable over time as other income sources grow.

Key Takeaways

  • SSDI payments are reported to the IRS on form SSA-1099, but they are only taxable if your combined income (SSDI plus half of SSDI plus other income) exceeds $25,000 for single filers or $32,000 for married filing jointly.
  • If you have little or no other income, your SSDI is usually not taxable, even though it appears on your tax return.
  • Earned wages, interest, pensions, and other retirement income all count toward the threshold that determines whether SSDI becomes taxable.
  • You receive form SSA-1099 from Social Security each January showing your SSDI payments for the previous year, and you must report this on your federal tax return.
  • State income tax rules for SSDI vary—some states do not tax SSDI at all, while others follow the federal formula or have their own thresholds.

How the combined income formula works

The IRS does not straightforward add up your SSDI and other income. Instead, it uses a specific calculation. Start with your adjusted gross income (wages, interest, pensions, and other income sources). Then add half of your SSDI payments. That total is your combined income.

If your combined income is below $25,000 (single) or $32,000 (married filing jointly), none of your SSDI is taxable. You still file a tax return and report the SSDI on it, but you owe no federal income tax on it.

If your combined income exceeds the first threshold, the IRS taxes up to 50 percent of your SSDI. If your combined income exceeds a second threshold—$34,000 for single filers or $44,000 for married filing jointly—up to 85 percent of your SSDI can become taxable. The exact amount depends on how far above the threshold you go.

This means a person with $26,000 in combined income might have only a small portion of SSDI taxed, while someone with $50,000 in combined income could have a much larger portion taxed. The formula is complex, and the IRS worksheet in the tax instructions walks you through it step by step.

What counts as income for this calculation

Combined income includes more than just wages. It includes interest from savings accounts and bonds, dividends from stocks, capital gains from selling investments, taxable pensions, taxable retirement account withdrawals, rental income, and self-employment income. It also includes certain tax-exempt interest, such as interest from municipal bonds.

It does not include Supplemental Security Income (SSI), which is a different program. It does not include food stamps, housing information, or other means-tested benefits. It does not include the standard deduction you claim on your tax return.

If you work part-time or have a side job, those wages count toward combined income and can push you over the threshold. If you withdraw money from a traditional IRA or 401(k), that withdrawal counts. If you receive a pension from a former employer, that counts too. Even small amounts of interest or investment income add up.

When you must file a tax return with SSDI

You must file a federal tax return if your gross income meets the IRS threshold for your filing status. For 2024, a single person with gross income of $14,600 or more must file. However, this threshold is different from the SSDI combined income threshold used to determine if SSDI is taxable.

Many people with SSDI and little other income do not have to file a tax return because their total gross income is below the filing threshold. However, if you have taxes withheld from other income sources, you may want to file anyway to get a refund.

Even if you are not required to file, you should report your SSDI on a tax return if you have combined income above $25,000 (single) or $32,000 (married filing jointly), because some of your SSDI will be taxable and you will owe tax on it.

State income tax and SSDI

Federal tax rules do not automatically explore to state income tax. Some states do not tax SSDI at all, regardless of your income level. Other states follow the federal formula. A few states have their own thresholds or rules.

States that do not tax SSDI include Alabama, Alaska, Arkansas, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Mississippi, Missouri, Montana, Nevada, New Hampshire, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Washington, West Virginia, Wisconsin, and Wyoming. This list can change, so check your state's tax authority website if you live in one of these states.

If you live in a state that does tax SSDI, you will need to report it on your state tax return as well as your federal return. Some states use the same combined income formula as the federal government. Others have different thresholds or rules. Contact your state's department of revenue or tax authority to learn the specific rules for your state.

How to report SSDI on your tax return

Social Security sends you form SSA-1099 by January 31 each year. This form shows the total SSDI you received in the previous calendar year. You use this form to fill out your federal tax return.

On the IRS form 1040 (the main federal tax form), SSDI goes on line 5b. You also report it on the Social Security Benefits Worksheet in the instructions, which calculates how much of your SSDI is taxable. If you use tax software, it will guide you through this worksheet.

If you file a state tax return, you will report SSDI there as well, following your state's specific form and instructions. Some states use the same line as the federal form. Others have a separate line for SSDI.

If you did not receive form SSA-1099 by early February, contact Social Security at 1-800-772-1213 or visit ssa.gov to request a replacement. You need this form to file your tax return accurately.

What happens if you owe tax on SSDI

If your combined income is high enough that some of your SSDI becomes taxable, you owe federal income tax on that portion. You can pay this tax when you file your return, or you can ask Social Security to withhold taxes from your SSDI payments.

To request tax withholding, complete form W-4V and send it to your local Social Security office or mail it to Social Security. You can choose to have 7, 10, 12, or 22 percent of your SSDI withheld for federal taxes. This withholding is voluntary, but it can help you avoid owing a large amount when you file your return.

If you owe tax and do not pay it, the IRS can explore your tax refund from other sources to the amount you owe. The IRS can also pursue collection through other means, though Social Security benefits themselves cannot be garnished to pay federal income tax debt.

Frequently Asked Questions

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

If SSDI is your only income and your combined income is below $25,000 (single) or $32,000 (married filing jointly), you do not owe federal income tax and are not required to file. However, if you have other income or if your combined income exceeds the threshold, you must file and report the taxable portion of your SSDI.

Does SSDI count as income for Medicare premiums?

Yes. Social Security uses your modified adjusted gross income (MAGI) to determine your Medicare Part B and Part D premiums. SSDI counts as income for this calculation. If your income is higher, your premiums are higher. This is separate from the tax calculation and uses different thresholds.

If I work part-time, does my job income affect whether SSDI is taxable?

Yes. Wages from part-time work count toward your combined income. If your wages plus half your SSDI plus any other income exceeds $25,000 (single) or $32,000 (married filing jointly), a portion of your SSDI becomes taxable. Work incentive programs may help reduce this impact—contact your local Social Security office to learn about work incentives.

Can I reduce the amount of SSDI that is taxable?

You cannot reduce SSDI itself, but you can reduce other income that counts toward combined income. For example, you might contribute to a traditional IRA, which reduces your adjusted gross income. However, this strategy works only if you have earned income. Consult a tax professional to explore options for your specific situation.

What if I disagree with the amount shown on my SSA-1099?

Contact Social Security at 1-800-772-1213 to report an error. Have your SSA-1099 and your Social Security statement handy. Social Security can issue a corrected form if there was a mistake in the amount reported. You can also request a replacement SSA-1099 if you lost the original.