Most people on SSDI pay no federal income tax on their benefits

You do not owe federal income tax on SSDI unless you have other income that pushes you over a threshold. The threshold is low — it is based on what the Social Security Administration calls combined income, which includes your SSDI, half of your SSDI, plus any other income you earn or receive. For 2024, if your combined income is under $25,000 (single) or $32,000 (married filing jointly), you owe no tax on your SSDI at all.

If your combined income is above those amounts, some of your SSDI becomes taxable. The math is complicated because it depends on how much you exceed the threshold and what kind of other income you have. But the key point is this: most SSDI recipients have no other income, so they never cross the threshold and never owe tax.

State income tax is different. Some states do not tax SSDI under any circumstances. Others tax it the same way the federal government does. A few states have their own rules. You need to check your state's tax authority website or ask a tax preparer who knows your state's rules.

Key Takeaways

  • You owe federal income tax on SSDI only if your combined income (SSDI plus half your SSDI plus other income) exceeds $25,000 single or $32,000 married filing jointly.
  • Most SSDI recipients have no other income and therefore owe no federal tax on their benefits.
  • If you do owe tax, only a portion of your SSDI is taxable — not all of it.
  • State tax rules vary widely; some states do not tax SSDI at all, while others follow federal rules or have their own thresholds.
  • You do not have to file a federal tax return just because you receive SSDI, but you may want to if you have other income or are owed a refund.

How the federal tax threshold works

The Social Security Administration uses a formula called combined income to decide whether your SSDI is taxable. Combined income is: your SSDI amount, plus half your SSDI amount, plus all your other income (wages, self-employment income, interest, dividends, pensions, and so on).

For example: you receive $1,200 per month in SSDI ($14,400 per year) and earn $15,000 from part-time work. Your combined income is $14,400 + $7,200 (half your SSDI) + $15,000 = $36,600. You are single, so your threshold is $25,000. You are $11,600 over the threshold. In this case, up to 85 percent of the amount over the threshold becomes taxable — but the actual calculation is more nuanced and depends on how much you exceed the threshold.

The thresholds have not changed since 1984. They are not adjusted for inflation each year the way other tax brackets are. This means more SSDI recipients cross the threshold over time, even if their actual income stays the same.

What counts as "other income" for the tax threshold

Other income includes wages, self-employment income, interest, dividends, rental income, and taxable pensions. It also includes distributions from retirement accounts like IRAs and 401(k)s, though the rules for those are complex.

Some income does not count toward the threshold. Supplemental Security Income (SSI) does not count. Veterans benefits do not count. Workers' compensation does not count. Gifts do not count. The key is whether the IRS would count it as taxable income on your federal return — if yes, it counts toward the combined income threshold.

Work incentives matter here. If you are on SSDI and working, you may be able to use work incentives like the Student Earned Income Exclusion or the Plan to Achieve Self-Support (PASS) to reduce your countable income for SSDI purposes. But those exclusions do not automatically reduce your combined income for tax purposes. You have to report your actual earnings to the IRS, even if Social Security is not counting them toward your benefit.

When you actually owe tax on SSDI

If your combined income exceeds the threshold, the IRS taxes a portion of your SSDI using a two-tier system. Up to 50 percent of the amount over the first threshold ($25,000 single / $32,000 married) becomes taxable. If you are also over a second, higher threshold ($34,000 single / $44,000 married), up to an additional 35 percent of the amount over that second threshold becomes taxable. The maximum is 85 percent of your SSDI.

This is not the same as paying tax on 85 percent of your SSDI. It means that in the worst case, 85 percent of your SSDI is included in your taxable income — and then you pay tax on that amount at your marginal tax rate. If you are in the 12 percent tax bracket, you pay 12 percent of that taxable SSDI. If you are in the 22 percent bracket, you pay 22 percent.

The calculation is complex enough that most people use tax software or a tax preparer. The IRS does not do the math for you on your return.

State income tax on SSDI

Thirteen states do not have income tax at all: Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, and Wyoming. If you live in one of these states, you owe no state income tax on SSDI or anything else.

Most other states follow the federal rule: if your SSDI is taxable at the federal level, it is taxable at the state level too. But some states have their own thresholds or rules. Illinois, for example, exempts all SSDI from state income tax. Mississippi exempts SSDI for residents over 59. New Jersey does not tax SSDI at all. You have to check your state's tax authority website or ask a tax preparer in your state.

If you live in a state with income tax and you owe state tax on your SSDI, you will need to file a state return even if you do not owe federal tax. The filing requirements are separate.

Whether you have to file a tax return

You do not have to file a federal tax return just because you receive SSDI. The IRS only requires you to file if your income is above a certain threshold — and that threshold is different from the SSDI tax threshold.

For 2024, if you are single and your only income is SSDI, you do not have to file unless your gross income is over $14,600. If you are married filing jointly and both of you receive only SSDI, you do not have to file unless your combined gross income is over $29,200. These thresholds are adjusted for inflation each year.

But you may want to file anyway. If you have taxes withheld from wages or other income, or if you are owed a refund, filing gets you that money back. You can also claim the Earned Income Tax Credit if you have wages and meet the income limits — and SSDI does not count toward those limits.

How to report SSDI on your tax return

Social Security sends you a Form SSA-1099 by January 31 each year. This form shows how much SSDI you received in the previous year. You use this amount to calculate your combined income and determine whether any of your SSDI is taxable.

If you use tax software like TurboTax or TaxAct, you enter the amount from your SSA-1099 and the software calculates the taxable portion for you. If you file by hand or with a tax preparer, they will do the calculation. You report the taxable portion of your SSDI on line 5b of Form 1040.

Keep your SSA-1099 with your tax records. If the IRS ever questions your return, you will need to show that you reported the correct amount.

What happens if you do not report SSDI income

If you owe tax on your SSDI and do not report it, the IRS can assess penalties and interest. The penalty for not filing a required return is usually 5 percent per month of the unpaid tax, up to 25 percent. Interest accrues on top of that. If the IRS thinks you did this intentionally, they can pursue fraud charges, though that is rare for SSDI cases.

The better approach is to file even if you are not sure whether you owe. If you file and it turns out you do not owe, there is no penalty. If you file and you do owe a small amount, you can often set up a payment plan. The IRS is generally more lenient with people who file late than with people who do not file at all.

Frequently Asked Questions

Do I have to file taxes if I only receive SSDI and have no other income?

No. If SSDI is your only income, you do not have to file a federal tax return. You only file if your gross income exceeds the filing threshold, which is $14,600 for single filers in 2024. However, you may want to file anyway if you have taxes withheld from other income or if you are owed a refund.

Can I use my SSDI to claim dependents or other tax deductions?

SSDI itself does not give you any special deductions. You can claim dependents, medical expenses, or other deductions the same way anyone else can, based on your total income. Your SSDI counts toward the income limits for some deductions and credits, so having SSDI can affect whether you may have access to.

What if I receive both SSDI and SSI?

SSI does not count toward the combined income threshold for SSDI taxation. Only your SSDI, half your SSDI, and your other income count. So receiving SSI does not make your SSDI taxable. However, you still have to report your actual income to Social Security for SSI purposes, which is a separate calculation.

If I owe taxes on my SSDI, can Social Security withhold the payment?

No. Social Security does not withhold federal income tax from SSDI payments automatically. If you want to have taxes withheld, you can request it by filing Form W-4V with Social Security. This is useful if you know you will owe tax and want to avoid a large bill at tax time.

Do I owe taxes on SSDI if I live outside the United States?

Yes, you still owe federal income tax on SSDI if you are a U.S. citizen or resident alien, regardless of where you live. You file the same way as anyone else. Some countries have tax treaties with the United States that may reduce your tax burden, but you still have to file and report your SSDI income.