Most SSDI recipients do not file federal taxes, but some must

Whether you file taxes on SSDI depends on your total income for the year, not just your SSDI payments. The Social Security Administration does not automatically withhold federal income tax from SSDI checks. You file taxes only if your combined income — from SSDI, work, interest, pensions, or other sources — exceeds a threshold that changes each year.

The threshold is low. For 2024, a single person with only SSDI income does not file unless they earned more than $14,600 from work or other non-SSDI sources. If you have both SSDI and work income, the calculation is different and usually lower. If you are married and file jointly, the threshold is higher but still modest.

The IRS treats SSDI differently from other income. Up to 85 percent of your SSDI benefits can be taxable, depending on your "combined income" — a formula that includes half your SSDI plus all other income. Most people with only SSDI and no other income owe no federal tax. People who work while receiving SSDI often do.

Key Takeaways

  • You must file federal taxes if your combined income (half your SSDI plus all other income) exceeds the annual threshold, which is $14,600 for single filers in 2024.
  • If you work and receive SSDI, you almost certainly must file, because work income counts toward the threshold even if SSDI alone would not trigger a filing requirement.
  • The IRS Form SSA-1099 you receive in January shows your SSDI income for the prior year and is the starting point for calculating whether you owe taxes.
  • Some states tax SSDI benefits even when the federal government does not, so check your state's rules separately.
  • If you do not file when required, you may lose refundable tax credits like the Earned Income Tax Credit, even if you owe no tax.

How the IRS calculates whether your SSDI is taxable

The IRS uses a formula called combined income to decide if any of your SSDI is taxable. Combined income is half your SSDI benefits plus all your other income — wages, self-employment income, interest, dividends, pensions, and taxable distributions from retirement accounts.

Once you know your combined income, compare it to two thresholds. If you are single and your combined income is under $25,000, none of your SSDI is taxable. If it is between $25,000 and $34,000, up to 50 percent of your benefits may be taxable. If it exceeds $34,000, up to 85 percent may be taxable. The exact amount depends on how far over the threshold you go.

Married couples filing jointly have higher thresholds: $32,000 and $44,000. Married couples filing separately have much lower thresholds and are almost always taxed on some SSDI.

Example: You are single and receive $1,500 per month in SSDI ($18,000 per year). You work part-time and earn $8,000. Your combined income is ($18,000 ÷ 2) + $8,000 = $17,000. This is under $25,000, so none of your SSDI is taxable. You file taxes only if your work income alone exceeds the filing threshold.

When you must file even if you owe no tax

You may have to file a tax return even if you owe no federal income tax. The most common reason is to claim a refundable tax credit — money the IRS sends you even if you paid in nothing.

The Earned Income Tax Credit (EITC) is the largest refundable credit for people with low income. If you work while receiving SSDI, you may may have access to for the EITC. The credit can be worth hundreds or thousands of dollars. You must file a return to receive it, even if your income is so low that you would owe no tax otherwise.

Other refundable credits include the Additional Child Tax Credit (if you have children) and the American Opportunity Credit (if you or a dependent paid for college). Check the IRS website or Form 1040 instructions to see which credits you might claim.

What documents you need to file

Start with Form SSA-1099, which Social Security mails to you by January 31 each year. This form shows your total SSDI income for the prior year in Box 5. You will need this to calculate your combined income.

Gather all other income documents: W-2 forms from employers, 1099 forms for self-employment or interest income, and statements from any pensions or retirement account distributions. If you have a spouse, collect their income documents too.

If you claim dependents or tax credits, have proof ready: birth certificates or Social Security numbers for children, receipts for childcare or education expenses, and documentation of any health insurance you carried during the year.

You can file using tax software (many free options exist for low-income filers), through a volunteer tax preparation site, or by hiring a tax professional. The IRS Volunteer Income Tax information (VITA) program offers free filing at community centers and libraries.

State taxes on SSDI

Thirteen states tax SSDI benefits: Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, Vermont, West Virginia, and Wisconsin. The rules vary by state. Some tax SSDI the same way the federal government does; others tax it more heavily or have different income thresholds.

If you live in one of these states, you must research your state's specific rules. Contact your state's department of revenue or visit its website. Some states exempt SSDI for people over a certain age or with income below a threshold, even if the federal government taxes it.

If you live in a state that does not tax SSDI, you still file your federal return as described above. You do not file a state return on SSDI income alone, but you may need to file one if you have other income your state taxes.

Reporting SSDI on your tax return

If you determine that some or all of your SSDI is taxable, report it on Form 1040, line 5b (for 2024; line numbers change yearly). You will also complete Worksheet 1 in the Form 1040 instructions to calculate exactly how much of your SSDI is taxable.

The worksheet is mechanical: it asks you to enter your combined income, compare it to the thresholds, and follow a formula. It takes 10 to 15 minutes. Tax software does this automatically if you enter your SSDI and other income correctly.

You do not send Form SSA-1099 with your return. Keep it in your records in case the IRS asks questions later.

What happens if you do not file when required

If you must file and do not, you lose any refundable tax credits you were may have access to to claim. The IRS does not send you money you did not ask for. If you were owed an EITC of $1,200 but did not file, you do not receive it.

You also cannot amend a return you never filed to claim a credit later. The important date to claim a refund is generally three years from the original filing date. If you missed the important date, the money is gone.

The IRS rarely penalizes people who owe no tax but failed to file. However, if you owe tax and do not file, penalties and interest accrue. If you are unsure whether you must file, file anyway — the cost of filing is zero, and the cost of missing a credit can be hundreds of dollars.

Frequently Asked Questions

Does Social Security withhold taxes from my SSDI check?

No. Social Security does not withhold federal income tax from SSDI payments. You are responsible for determining whether you owe tax and filing a return. Some people request voluntary withholding on Form W-4V, but this is rare and usually unnecessary for SSDI recipients.

If I work part-time and receive SSDI, do I always have to file taxes?

Almost always yes. Work income counts toward the combined income threshold, which is low. Even $8,000 in work income often pushes you over the threshold. You must file to report the work income and calculate whether any SSDI is taxable. You may also may have access to for the Earned Income Tax Credit, which requires filing.

Can I file my taxes online if I receive SSDI?

Yes. Tax software like TurboTax, H&R Block, and TaxAct all handle SSDI income. The IRS Free File program offers free software to people earning under $79,000. If you prefer in-person help, VITA sites provide free tax preparation at libraries and community centers.

What if I think I overpaid taxes on my SSDI in prior years?

You can file an amended return (Form 1040-X) for up to three years back. If you discover you were taxed on SSDI incorrectly, contact a tax professional or VITA site to file the amendment and request a refund.

Do I have to report my SSDI to the IRS if I do not file a tax return?

If you are not required to file, you do not file. The IRS receives a copy of your Form SSA-1099 from Social Security, so they know about your SSDI income. You only file if your combined income exceeds the threshold or if you want to claim a refundable credit.