Whether SSDI is taxable depends on your total income, not on SSDI alone

Social Security Disability Income (SSDI) may or may not be taxable in a given year. The IRS taxes SSDI only if your combined income exceeds a threshold that depends on your filing status. Combined income includes SSDI, wages, interest, dividends, and certain other sources — not just what you earn from work. Many people on SSDI pay no federal tax on their benefits because their combined income stays below the threshold. Others do owe tax on a portion of their benefits.

The threshold amounts are set by law and do not change year to year. For 2024, if you file as single and your combined income is $25,000 or less, you owe no federal tax on SSDI. If you file as married filing jointly, the threshold is $32,000. Combined income above those amounts may trigger taxation on up to 85 percent of your SSDI for that year.

Key Takeaways

  • SSDI becomes taxable only if your combined income (SSDI plus other income) exceeds $25,000 for single filers or $32,000 for married filing jointly.
  • Combined income includes wages, self-employment income, interest, dividends, and certain retirement distributions — not just work earnings.
  • If you owe tax on SSDI, you can arrange for the Social Security Administration to withhold federal income tax from your monthly payment so you do not owe a lump sum at tax time.
  • State income tax rules for SSDI vary by state; some states do not tax SSDI at all, while others follow federal rules or have different thresholds.
  • You must file a federal tax return if your combined income exceeds the threshold, even if no tax is owed, to claim refundable credits like the Earned Income Tax Credit.

How the IRS calculates combined income for SSDI taxation

The IRS uses a specific formula to determine whether your SSDI is taxable. Combined income is calculated as your adjusted gross income (AGI) plus nontaxable interest plus half of your SSDI benefits. This formula means that even income sources that are not themselves taxable — such as tax-exempt bond interest — count toward the threshold that determines whether SSDI becomes taxable.

For example, if you receive $1,200 per month in SSDI ($14,400 per year), earn $8,000 from part-time work, and have $2,000 in nontaxable interest, your combined income is $8,000 + $2,000 + ($14,400 ÷ 2) = $16,200. Since $16,200 is below $25,000, you owe no federal tax on your SSDI that year. If you earned $20,000 from work instead, your combined income would be $20,000 + $2,000 + $7,200 = $29,200, which exceeds the $25,000 threshold, and some of your SSDI would be taxable.

What counts as income for the SSDI tax calculation

Income that counts toward the combined income threshold includes wages from employment, self-employment income, taxable interest, dividends, capital gains, taxable retirement distributions (including from IRAs and 401(k)s), rental income, and certain other sources. Nontaxable interest — such as interest from municipal bonds — also counts, which is why the formula includes it separately.

Income that does not count includes Supplemental Security Income (SSI), certain veterans' benefits, workers' compensation, and some other need-based assistance programs. If you receive both SSDI and SSI, only the SSDI portion is subject to this taxation rule. Gifts and inheritances do not count as income for this purpose.

How much of your SSDI becomes taxable

If your combined income exceeds the threshold, the IRS does not tax all of your SSDI. Instead, you may owe tax on up to 50 percent or up to 85 percent of your benefits, depending on how far your combined income exceeds the threshold.

The calculation is complex and involves two separate formulas. Generally, if your combined income is between the initial threshold ($25,000 single / $32,000 married filing jointly) and a second threshold ($34,500 single / $44,000 married filing jointly), up to 50 percent of your SSDI may be taxable. If your combined income exceeds the second threshold, up to 85 percent may be taxable. The IRS worksheet in Publication 915 walks through the exact calculation, or a tax professional can compute it for you.

Withholding federal tax from your SSDI payment

If you know you will owe federal income tax on your SSDI, you can ask the Social Security Administration to withhold tax from your monthly benefit payment. This prevents you from owing a large amount when you file your tax return. You request withholding by completing Form W-4V (Voluntary Withholding Request) and submitting it to Social Security.

You can choose to have 7, 10, 12, or 22 percent of your monthly SSDI payment withheld. Social Security will send the withheld amount to the IRS on your behalf. You can change or stop withholding at any time by submitting a new Form W-4V. If you have other income sources (such as wages), you may also adjust withholding on those to account for SSDI taxation.

State income tax treatment of SSDI

Whether your state taxes SSDI depends on state law, which varies significantly. Some states — including California, Florida, Illinois, Mississippi, New York, Ohio, Pennsylvania, and others — do not tax SSDI at all. Other states follow federal rules and tax SSDI only if combined income exceeds the federal threshold. A few states have different thresholds or different taxation rules.

If you live in a state that taxes SSDI, you may be able to request state tax withholding as well. Contact your state tax authority or a tax professional to understand your state's specific rules. State tax treatment does not depend on federal taxation; you could owe state tax on SSDI even if you owe no federal tax, or vice versa.

Filing a tax return when you receive SSDI

You must file a federal tax return if your combined income exceeds the threshold for your filing status, even if the calculation shows you owe no tax. You should also file if you have other income that requires a return — such as self-employment income over $400 — or if you want to claim refundable tax credits.

Many people on SSDI are may have access to to the Earned Income Tax Credit (EITC) if they also have wages. The EITC is refundable, meaning you can receive money back even if you owe no tax. To receive the credit, you must file a return. Use IRS Form 1040 or 1040-SR (for people 65 and older) and Publication 915 to report SSDI income. If your income is low, you may be able to file for free using IRS Free File.

Frequently Asked Questions

Do I have to pay tax on all of my SSDI if my income is above the threshold?

No. At most, 85 percent of your SSDI is taxable, even if your combined income is very high. The actual amount depends on how much your combined income exceeds the threshold. Many people with combined income above the threshold still owe tax on only 50 percent of their benefits.

If I work part-time and receive SSDI, will my wages push me over the income threshold?

Possibly. Your combined income includes your wages plus half your SSDI plus any other income. If your wages alone are high enough, they could push you over the threshold. However, the threshold is $25,000 for single filers, so you would need substantial earnings to reach it.

What if I receive a large one-time payment, like an inheritance or insurance settlement?

Inheritances and insurance settlements do not count as income for the SSDI taxation calculation. However, if the settlement includes interest or if you invest the money and earn interest or dividends, that investment income does count toward combined income in future years.

Can I reduce my SSDI tax by reducing my other income?

Yes. Since combined income determines taxation, reducing wages, interest, or other income sources lowers your combined income and may bring you below the threshold. Some people delay taking retirement distributions or manage investment income strategically to stay below the threshold.

Where do I report SSDI on my tax return?

Report your SSDI on line 5b of Form 1040 or 1040-SR. The Social Security Administration sends you a Form SSA-1099 each January showing your SSDI for the prior year. Use that form to complete your tax return. Publication 915 contains the worksheet to determine how much of your SSDI is taxable.