Your SSDI is taxable only if your total income exceeds a threshold set by the IRS

Whether you owe federal income tax on your SSDI depends on your combined income—not just your SSDI check. The IRS counts SSDI plus other income sources (wages, interest, pensions, certain Social Security retirement benefits) to determine if any of your SSDI becomes taxable. For most SSDI recipients, the answer is no tax owed. But if you have other income, you may cross the threshold.

The threshold is low: $25,000 for a single filer, $32,000 for married filing jointly. These limits have not changed since 1984. If your combined income stays below the threshold, you owe no federal tax on SSDI. If it exceeds the threshold, up to 85 percent of your SSDI can become taxable income—though in practice, the amount is usually much lower.

State taxes are separate. Some states tax SSDI; most do not. Your state tax return may require SSDI to be reported even if you owe no federal tax. Check your state's rules or ask a tax preparer familiar with disability income.

Key Takeaways

  • SSDI becomes taxable only if your combined income (SSDI plus wages, interest, pensions, and other sources) exceeds $25,000 single or $32,000 married filing jointly.
  • The IRS uses a formula that can tax up to 85 percent of your SSDI, but most recipients who owe tax pay on a much smaller portion.
  • You must report SSDI on your federal tax return even if none of it is taxable, using Form SSA-1099 sent by Social Security.
  • State tax treatment varies; some states do not tax SSDI at all, while others follow federal rules or have their own thresholds.
  • If you work while receiving SSDI, your wages count toward the income threshold and may trigger SSDI taxation.

How the IRS calculates taxable SSDI

The calculation uses a two-tier formula. First, the IRS adds half your SSDI to your other income. If that sum exceeds $25,000 (single) or $32,000 (married filing jointly), you move to the second tier. The amount over the threshold is compared to your SSDI; the smaller of the two becomes potentially taxable, up to a maximum of 50 percent of SSDI.

If your combined income exceeds a second, higher threshold—$34,000 single or $44,000 married filing jointly—a second calculation kicks in. This one can tax up to an additional 35 percent of SSDI. The result is that up to 85 percent of your SSDI can be taxable, but only if your combined income is quite high.

Example: You are single, receive $1,500 monthly SSDI ($18,000 yearly), and earn $10,000 from part-time work. Your combined income is $28,000. Half your SSDI ($9,000) plus other income ($10,000) equals $19,000—below the $25,000 threshold. You owe no tax on SSDI. But if you earned $20,000 instead, your combined income would be $38,000, and some SSDI would become taxable.

What counts as income for the threshold test

The IRS includes wages, self-employment income, interest, dividends, capital gains, pensions, annuities, and rental income. It also includes taxable Social Security retirement benefits if you receive both SSDI and retirement benefits (rare, but possible in some cases). It does not include Supplemental Security Income (SSI), which is a separate, need-based program.

Certain work incentives reduce the income count. If you are in a trial work period or using the Plan to Achieve Self-Support (PASS), some earnings may not count toward the threshold. These programs are designed to let you test your ability to work without when ready losing benefits. The details are complex; contact your local Social Security office or a work incentive planning specialist if you are working or considering it.

Gifts, loans, and money from family do not count as income for tax purposes. Neither do refunds of your own money or proceeds from selling an asset you already owned. But interest earned on savings does count.

Reporting SSDI on your tax return

Social Security sends you a Form SSA-1099 each January showing your SSDI for the prior year. You must report this amount on your federal tax return even if none of it is taxable. The form goes in Box 5 of your Form 1040 or 1040-SR (for age 65 and older).

If you use tax software, it will ask whether you received SSDI and walk you through the calculation. If you file by hand or with a preparer, give them the SSA-1099 and tell them about any other income. Many tax preparers are familiar with SSDI taxation; if yours is not, consider finding one who works with disability recipients.

You do not need to file a return at all if your income is below the standard deduction for your filing status—but you must still report SSDI if you file. The standard deduction for 2024 is $14,600 for a single filer under 65 and $23,200 for married filing jointly. If your only income is SSDI below these amounts, you may not owe tax, but filing anyway can be worthwhile if you are due a refund (for example, if taxes were withheld from wages).

How work affects SSDI taxation

Wages from any job count as income for the threshold test. If you earn $15,000 and receive $18,000 in SSDI, your combined income is $33,000—above the $25,000 threshold for a single filer. Some of your SSDI becomes taxable.

The trial work period lets you earn up to a certain amount (in 2024, $1,550 per month, though this changes yearly) without losing SSDI benefits. But those earnings still count toward the income threshold for tax purposes. After the trial work period ends, if you continue to work and earn above the substantial gainful activity level (in 2024, $1,550 monthly for non-blind individuals), your SSDI stops, and the taxation question becomes moot.

If you are using a PASS to return to work, some of your earnings may be excluded from the income threshold calculation. This is one of the few ways to reduce the threshold test. Ask your work incentive planning specialist whether a PASS would help you.

State tax treatment of SSDI

Most states do not tax SSDI at all. However, some states follow federal rules and tax SSDI the same way the IRS does. A few states have their own thresholds or rules. Illinois, for example, does not tax SSDI. New York taxes it only if your federal adjusted gross income exceeds certain limits. Colorado and Missouri have specific exemptions for SSDI.

If you live in a state that taxes income, check your state's tax agency website or ask a preparer whether SSDI is taxable in your state. State rules change, and some states have recently moved to exclude SSDI from taxation. Do not assume your state taxes SSDI just because the federal government does.

You may need to file a state return even if you owe no federal tax. Some states require reporting of SSDI regardless of whether it is taxable. Include the SSA-1099 with your state return if required.

What to do if you owe tax on SSDI

If your tax return shows that some SSDI is taxable and you owe federal income tax, you can pay when you file. You can also request that Social Security withhold taxes from your SSDI check each month, similar to how an employer withholds from wages. To set up withholding, complete Form W-4V and send it to your local Social Security office or submit it online through your my Social Security account.

Withholding is optional but can help you avoid a large bill at tax time. If you withhold, Social Security will reduce your monthly check by the amount you request. You can change or stop withholding at any time by submitting a new Form W-4V.

If you did not withhold and owe tax, you can pay in full with your return or set up a payment plan with the IRS. The IRS offers installment agreements for taxpayers who cannot pay in full. You can also request an extension to file, though this does not extend the time to pay.

Frequently Asked Questions

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

Only if your combined income exceeds the standard deduction for your filing status. However, you must report SSDI on your return if you file. If you have no other income and your SSDI is below $14,600 (single, under 65 in 2024), you do not have to file. But filing may be worth it if you are due a refund.

What if I receive both SSDI and SSI?

SSI is not counted as income for the SSDI tax threshold. Only SSDI, wages, and other income sources count. However, SSI itself is never taxable. If your only income is SSDI and SSI, you likely owe no tax on either.

Can I reduce the amount of SSDI that is taxable?

Not directly, but you can reduce your other income. If you are working, a PASS can exclude some earnings from the income threshold. You can also time the receipt of income—for example, deferring a bonus to the next year—though this requires careful planning. A tax professional or work incentive specialist can advise on your situation.

What if Social Security made an error on my SSA-1099?

Contact Social Security to report the error. You can call 1-800-772-1213 or visit your local office. Social Security will issue a corrected form if needed. Do not file your tax return until you have the correct amount; filing with a wrong SSA-1099 can delay your refund or trigger an audit.

Does Medicare or Medicaid affect SSDI taxation?

No. Medicare and Medicaid are separate programs and do not count as income for tax purposes. Your SSDI taxation depends only on earned and unearned income, not on health insurance or other benefits.