Most SSDI income is not taxable, but you may still have to report it

Social Security Disability Insurance (SSDI) payments are not taxable income under federal law. You do not report your monthly SSDI check as income on your federal tax return, and you do not owe federal income tax on those payments alone.

However, the IRS counts SSDI as income for one specific purpose: determining whether your other income pushes you into a tax bracket where some of your Social Security becomes taxable. This rule applies to both SSDI and retirement benefits. If you have wages, self-employment income, interest, dividends, or other sources of money, you may have to report SSDI on your return even though the SSDI itself is not taxed.

The threshold depends on your filing status and what other income you received that year. For most people on SSDI alone, with no other income, the answer is straightforward: you do not file a federal return and you do not report the SSDI.

Key Takeaways

  • SSDI payments themselves are never taxable federal income and do not go on your tax return as earnings.
  • If you have other income (wages, self-employment, interest, pensions), you may have to file a return and report SSDI as income for tax calculation purposes, even though it is not taxed.
  • The IRS uses a "combined income" formula to determine if any of your Social Security becomes taxable; this formula includes SSDI even though SSDI is not itself taxed.
  • If you receive both SSDI and SSA retirement benefits, only the retirement portion may become taxable; SSDI remains tax-free.
  • State income tax rules vary: some states tax Social Security benefits, others do not, and a few tax SSDI differently than retirement benefits.

When you must report SSDI on your federal return

You must file a federal tax return if your combined income exceeds a threshold set by the IRS. Combined income is calculated as your adjusted gross income (AGI) plus nontaxable interest plus half of your Social Security benefits (including SSDI).

For 2023, the thresholds were: single filers with combined income over $25,000; married filing jointly over $32,000; married filing separately over $0. These numbers change each year. If your combined income falls below the threshold, you do not have to file a federal return, even if you received SSDI.

Example: You received $15,000 in SSDI and $12,000 in wages. Your combined income is $12,000 (wages) plus $7,500 (half of SSDI) = $19,500. As a single filer, you are below $25,000, so you do not have to file. If you had $14,000 in wages instead, your combined income would be $21,500—still below the threshold.

If you are above the threshold, you file a return. The SSDI amount goes into the calculation, but the SSDI itself is not taxed. Instead, the IRS uses the combined income figure to determine whether any of your other Social Security income (such as retirement benefits or spousal benefits) becomes taxable.

How SSDI affects taxation of other Social Security income

If you receive both SSDI and retirement or spousal benefits from Social Security, the two are treated differently for tax purposes. SSDI is always tax-free. Retirement and spousal benefits may become taxable if your combined income is high enough.

The IRS has two tiers of taxation. At the first tier (combined income between $25,000 and $34,000 for single filers; $32,000 to $44,000 for married filing jointly), up to 50 percent of your Social Security benefits may be taxable. At the second tier (above those amounts), up to 85 percent may be taxable.

When calculating combined income, the IRS counts SSDI even though SSDI itself will never be taxed. This means SSDI can push your combined income high enough to make your retirement benefits taxable, even though you are not paying tax on the SSDI itself.

Example: You receive $1,200 per month in SSDI ($14,400 per year) and $800 per month in retirement benefits ($9,600 per year). You also have $8,000 in pension income. Your combined income is $8,000 + $4,800 (half of $9,600 retirement benefits) + $7,200 (half of $14,400 SSDI) = $20,000. You are below the first tier, so none of your benefits are taxed. The SSDI is never taxed; the retirement benefits are not taxed either because combined income is low.

State income tax and SSDI

Federal tax rules do not explore to state income tax. Thirteen states tax Social Security benefits to some degree: Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, Vermont, and West Virginia. Illinois taxes only retirement benefits, not SSDI or other Social Security.

Of the states that tax Social Security, most follow federal rules: they tax benefits only if combined income exceeds a state-specific threshold, and they do not tax SSDI itself. However, the thresholds and percentages vary by state. Some states are more generous than federal rules; others are stricter.

You will need to check your state's tax agency website or speak with a tax preparer familiar with your state's rules. If you live in a state with income tax and receive Social Security, your state return may require you to report SSDI even if your federal return does not.

What documents you need and where to get them

Social Security sends you a Form SSA-1099-SM (or Form SSA-1099 for retirement benefits) each January showing the total benefits you received the previous year. This form lists SSDI and other benefits separately. You use this form to calculate your combined income and determine your filing requirement.

If you do not receive a Form SSA-1099-SM, you can request one from Social Security by calling 1-800-772-1213 or visiting ssa.gov. You can also create a my Social Security account online to view your benefit statements and read forms.

Keep your Form SSA-1099-SM with your tax records even if you do not file a federal return. If the IRS ever questions your income, you will need to show that you received SSDI and that it was not taxable.

Self-employment income and SSDI

If you work and earn self-employment income while receiving SSDI, you must report that income on your tax return regardless of the amount. Self-employment income counts toward your combined income for the Social Security taxation calculation, and you owe self-employment tax (Social Security and Medicare tax) on net earnings of $400 or more.

The SSDI itself does not count as self-employment income and does not affect your self-employment tax. However, your self-employment earnings will increase your combined income, which may make any retirement or spousal benefits you receive taxable.

You will file Schedule C (or Schedule C-EZ) to report self-employment income, and Schedule SE to calculate self-employment tax. The SSDI amount goes on your Form 1040 for the combined income calculation but is not taxed itself.

Medicare premiums and SSDI reporting

SSDI recipients become may be able to access for Medicare after 24 months of receiving benefits. Your Medicare Part B and Part D premiums are usually deducted directly from your SSDI check. These deductions do not change your taxable income; they are not reported on your tax return.

However, if your income (including SSDI for combined income purposes) is high enough, you may owe an Income-Related Monthly Adjustment Amount (IRMAA) on top of your standard Medicare premiums. IRMAA is based on your modified adjusted gross income (MAGI) from two years prior. SSDI counts toward MAGI for this calculation.

If you believe your IRMAA is incorrect because your income has dropped significantly (due to job loss, divorce, or death of a spouse), you can file an appeal with Social Security and Medicare. You will need to provide documentation of the change.

Frequently Asked Questions

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

No. If SSDI is your only income and you are below the filing threshold for your filing status, you do not have to file a federal tax return. For 2023, single filers with combined income under $25,000 do not have to file. Since SSDI is not taxable, you would have no tax liability anyway.

What if I received SSDI for part of the year and worked for part of the year?

You must report your wages on your tax return. Your combined income includes both the wages and half of your SSDI. If combined income exceeds the threshold, you file a return. You owe income tax on your wages, but not on the SSDI portion.

Can SSDI be taxed if I have a lot of other income?

No. SSDI is never taxable, no matter how much other income you have. However, high combined income (which includes SSDI) can make any retirement or spousal Social Security benefits you receive taxable. The SSDI itself remains tax-free.

Do I report SSDI on state taxes?

It depends on your state. Thirteen states tax Social Security benefits; most follow federal rules and do not tax SSDI itself, but use SSDI in the combined income calculation. Check your state tax agency website or ask a tax preparer about your state's rules.

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

Contact Social Security when ready. Call 1-800-772-1213 or visit your local Social Security office with your records. Social Security can issue a corrected form if there is an error. Keep the original form and the corrected form with your tax records.