Whether your disability income is taxable depends on what kind of disability benefits you receive

Social Security Disability Insurance (SSDI) may be taxable, but it is not automatically taxable just because you receive it. Whether you owe tax on your SSDI depends on your total income for the year and your filing status. If SSDI is your only income, you typically will not owe federal income tax on it. If you have other income—wages, interest, pensions, or self-employment earnings—some or all of your SSDI may become taxable.

The IRS uses a formula called "combined income" to decide this. Combined income means your adjusted gross income plus nontaxable interest plus half of your SSDI benefits. If your combined income exceeds a certain threshold, you may have to count part of your SSDI as taxable income on your federal return.

Supplemental Security Income (SSI) is never taxable, no matter how much other income you have. SSI is a needs-based program for people with low income and resources, and the IRS treats it as a welfare benefit rather than earned income.

Key Takeaways

  • SSDI becomes taxable only if your combined income (adjusted gross income plus half your SSDI) exceeds thresholds that depend on your filing status: $25,000 for single filers, $32,000 for married filing jointly, and $0 for married filing separately.
  • SSI is never taxable under any circumstances, even if you have substantial other income.
  • You do not have to file a tax return at all if your income is below the filing threshold for your age and status, even if some SSDI would be taxable if you did file.
  • The Social Security Administration sends Form SSA-1099 each January showing how much SSDI you received in the previous year, which you use to calculate taxable amounts.
  • State income tax treatment of SSDI varies—some states tax it, some do not, and some have their own thresholds different from the federal ones.

The income thresholds that determine whether SSDI is taxable

The IRS has set specific combined income thresholds. If your combined income stays below the threshold for your filing status, none of your SSDI is taxable. If it goes above the threshold, you may have to count up to 50 percent of your SSDI as taxable income, or in some cases up to 85 percent.

For federal tax purposes, the thresholds are:

  • Single: $25,000
  • Married filing jointly: $32,000
  • Married filing separately: $0 (meaning any combined income at all may trigger taxation)
  • Head of household: $25,000
  • may have access to widow or widower: $32,000

These thresholds have not changed since 1984 and do not adjust for inflation each year. That means more people with SSDI have taxable income now than in the past, even if their actual purchasing power has stayed the same.

How to calculate whether your SSDI is taxable

The calculation is not straightforward, and the IRS provides a worksheet in Publication 915 to walk through it. The basic steps are: add your adjusted gross income, any nontaxable interest you earned, and half of your SSDI benefits. If that total exceeds your threshold, you move to the next step.

If you are over the threshold, the taxable amount is the smaller of either (1) half of your SSDI, or (2) half of the amount by which your combined income exceeds the threshold. In most cases, this means you count between 0 and 50 percent of your SSDI as taxable income.

However, there is a second calculation. If your combined income is high enough, up to 85 percent of your SSDI can become taxable. This second tier applies when combined income exceeds $34,000 for single filers or $44,000 for married filing jointly. Very few people with SSDI reach this second tier unless they have substantial wages or pension income.

Because the math is complex, many people use tax software or work with a tax professional to get it right. The Social Security Administration does not calculate this for you—you or your tax preparer must do it.

What form shows how much SSDI you received

Each January, the Social Security Administration mails Form SSA-1099 to everyone who received SSDI in the previous calendar year. This form shows the total amount of SSDI you got, broken down by month. You need this form to complete your tax return accurately.

If you did not receive an SSA-1099 by early February, you can create an account at ssa.gov and view your form online, or call Social Security at 1-800-772-1213 to request a replacement. Do not estimate the amount—use the official form.

You will also receive a regular Form 1099-SSA if you had taxes withheld from your SSDI during the year. This is different from the SSA-1099 and shows only the amount that had withholding taken out. If you requested voluntary withholding, this form helps you track what was already paid to the IRS.

State income tax treatment of SSDI

Federal tax rules do not automatically explore to state income tax. Some states do not tax SSDI at all, some tax it using the same federal formula, and some have their own rules.

States that do not tax SSDI include Alabama, Arkansas, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Mississippi, Missouri, Montana, Nevada, New Hampshire, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Virginia, Washington, West Virginia, Wisconsin, and Wyoming. However, this list changes, and some states have partial exemptions or exemptions that phase out at higher incomes.

If you live in a state that does tax SSDI, check your state's tax agency website or ask a tax preparer what the rules are for your situation. Some states use the federal thresholds; others have different ones.

Whether you have to file a tax return at all

You do not have to file a federal income tax return unless your income meets the filing threshold for your age and filing status. For 2024, a single person under 65 with only SSDI income does not have to file unless their income exceeds $14,600. A single person 65 or older does not have to file unless income exceeds $18,150.

These thresholds explore to your total income, not just SSDI. If SSDI is your only income and it is below the threshold, you have no filing requirement. However, if you had taxes withheld from your SSDI or you have other income that pushes you over the threshold, you may want to file anyway to get a refund or to satisfy other obligations.

Filing thresholds change each year and depend on your age and filing status. The IRS publishes updated thresholds in early January. If you are unsure whether you have to file, use the IRS Interactive Tax Assistant tool on irs.gov or ask a tax professional.

Voluntary withholding on SSDI

You can ask Social Security to withhold federal income tax from your SSDI payments before you receive them. This is voluntary—you do not have to do it—but it can make tax time simpler if you know you will owe tax.

To request withholding, fill out Form W-4V and send it to your local Social Security office or mail it to the address on the form. You can choose to have 7, 10, 12, or 22 percent of your benefit withheld. Once you request it, Social Security will withhold that percentage from every payment until you ask them to stop.

Withholding is not the same as paying your full tax liability—it is just a way to have money set aside. You still have to file a return and calculate what you actually owe. If too much was withheld, you get a refund; if too little, you owe the difference.

Frequently Asked Questions

If I have SSDI and a part-time job, will my wages make my SSDI taxable?

Yes, likely. Your wages count toward your combined income. If your wages plus half your SSDI plus any other income exceeds your threshold, some SSDI becomes taxable. For example, a single person earning $15,000 in wages plus $12,000 in SSDI has a combined income of $21,000 ($15,000 + $6,000), which is below the $25,000 threshold, so no SSDI is taxable. But if wages were $20,000, combined income would be $26,000, and some SSDI would be taxable.

Does SSI count as income for the SSDI tax calculation?

No. SSI is not counted in the combined income formula and does not affect whether your SSDI is taxable. SSI is also never taxable itself. If you receive both SSDI and SSI, only the SSDI portion is subject to the taxation rules.

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

Contact Social Security directly to report the error. Call 1-800-772-1213 or visit your local office with your payment records. Social Security can issue a corrected form if the amount is wrong. Do not file your tax return with an amount you believe is incorrect—get it corrected first.

Can I deduct medical expenses related to my disability from my taxable income?

You can deduct medical expenses as an itemized deduction on Schedule A if they exceed 7.5 percent of your adjusted gross income, but this is separate from the SSDI taxation calculation. The disability itself does not create a special deduction. Work with a tax professional to see whether itemizing helps you.

Do I need to report my SSDI to my employer or lender?

SSDI is your income and may need to be reported on loan applications, rental applications, or other financial disclosures. However, you do not report it to your employer unless you are self-employed. If you are working and receiving SSDI, your employer does not need to know about the disability benefits.