Whether you owe taxes on SSDI depends on your total income, not just your benefits

Social Security Disability Insurance (SSDI) may be taxable, but only if your combined income exceeds a threshold set by the IRS. The threshold does not change year to year — it has been the same since 1984. What changes is how much other income you earn, and whether you cross that line.

For 2025, you will owe federal income tax on your SSDI only if your "combined income" exceeds $25,000 (if you file single) or $32,000 (if you file married filing jointly). Combined income means your adjusted gross income plus nontaxable interest plus half your SSDI benefits. If you stay below that threshold, you owe nothing on your SSDI, even if you file a tax return.

State taxes are separate. Some states tax SSDI; most do not. Your state's rule does not depend on the federal threshold.

Key Takeaways

  • Federal tax on SSDI is triggered only if your combined income (wages, interest, other benefits, plus half your SSDI) exceeds $25,000 single or $32,000 married filing jointly.
  • If you are below the threshold, you owe no federal tax on your SSDI, and you may not need to file a federal return at all.
  • If you are above the threshold, you will owe tax on up to 85 percent of your SSDI benefits, depending on how far above the threshold you are.
  • State tax rules vary — some states do not tax SSDI at all, while others follow federal rules or have their own thresholds.
  • The IRS thresholds have not changed since 1984, so they affect more people each year as wages and other income rise.

How the IRS calculates combined income

The IRS uses a specific formula to decide whether you owe tax on SSDI. Start with your adjusted gross income (AGI) — this is your wages, self-employment income, interest, dividends, and other taxable income, minus certain deductions like educator expenses or student loan interest.

Then add any nontaxable interest you earned (usually from municipal bonds). Then add half of the SSDI benefits you received during the year. That total is your combined income. If it is below $25,000 (single) or $32,000 (married filing jointly), you stop here — no tax on SSDI.

If your combined income is above the threshold, the IRS taxes a portion of your benefits. The amount taxed depends on how far above the threshold you are. If you are slightly above, you may owe tax on up to 50 percent of your benefits. If you are well above, you may owe tax on up to 85 percent of your benefits. The IRS publishes a worksheet each year to calculate the exact amount.

When you must file a return even if you owe no tax on SSDI

You may have to file a federal tax return even if all your income is SSDI and you are below the threshold. The IRS requires you to file if your gross income (before any deductions) exceeds a certain amount. For 2025, that amount is $14,600 for a single person age 65 or older, and $29,200 for a married couple filing jointly where both are 65 or older.

If you have wages or self-employment income, the threshold is lower — $13,850 single, $27,700 married filing jointly. If you have SSDI only and your combined income is below the threshold for your age and filing status, you do not have to file — but you may want to anyway if you had taxes withheld or are due a refund.

Filing a return is free through the IRS Free File program if your income is below a certain level, or you can use a tax software or a tax preparer.

State taxes on SSDI in 2025

Fourteen states tax SSDI benefits to some degree: Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, Vermont, and West Virginia. (Illinois and Kentucky also tax SSDI but have exemptions or phase-outs that may protect you.) The other 36 states do not tax SSDI at all.

Each state that taxes SSDI uses its own rules. Some follow the federal combined-income threshold; others have lower thresholds or tax all SSDI regardless of income. A few states allow a deduction or exemption based on age or disability status. You will need to check your state's tax authority website or speak with a tax preparer who knows your state's rules.

If you live in a state that taxes SSDI and your income is above that state's threshold, you will owe state tax on a portion of your benefits in addition to any federal tax. Some states allow you to claim a credit on your federal return for state tax paid on SSDI.

How to report SSDI on your tax return

The Social Security Administration sends you a Form SSA-1099 by January 31 each year, showing the total SSDI you received in the prior year. Use this form to fill out your federal tax return.

On your federal return, you will report your SSDI on Form 1040 (the main return form). If you owe tax on your benefits, you will use a worksheet provided with the Form 1040 instructions to calculate the taxable amount. The IRS website and most tax software will walk you through this calculation.

If you file state taxes, you will report your SSDI on your state return as well, using your state's rules and forms. Some states use the same threshold as the federal government; others require you to report all SSDI and then explore a state-specific exemption or deduction.

What happens if you did not pay taxes on SSDI when you should have

If you owed tax on your SSDI but did not file a return or pay, the IRS can assess a penalty and interest. The penalty is usually 5 percent of the unpaid tax per month, up to 25 percent total. Interest accrues daily at a rate set quarterly by the IRS.

If you discover you owe back taxes on SSDI, you can file an amended return (Form 1040-X) for any year within the last three years. The IRS will calculate the tax owed, plus interest and penalties. You can also contact the IRS to set up a payment plan if you cannot pay in full.

If you are unable to pay and have a financial hardship, you may be able to request an installment agreement or an offer in compromise (a settlement for less than you owe). Contact the IRS at 1-800-829-1040 to discuss your options.

Planning ahead to reduce SSDI taxes

If you are close to the combined-income threshold, you may be able to reduce your tax burden by managing other income. For example, if you have a choice about when to claim interest or dividends, timing them to stay below the threshold can save you tax on your SSDI. This strategy is most useful if you are just slightly above the threshold.

If you have self-employment income, you may be able to deduct business expenses to lower your adjusted gross income. If you have investment income, you might consider tax-loss harvesting or deferring gains to a later year. These strategies require planning and may not be possible depending on your situation.

A tax preparer or financial advisor who understands SSDI can help you think through these options. Many offer free or low-cost consultations, especially if your income is modest.

Frequently Asked Questions

Do I have to pay taxes on SSDI if I am below the income threshold?

No. If your combined income is below $25,000 (single) or $32,000 (married filing jointly), you owe no federal tax on your SSDI, even if you file a return. You may still want to file to claim a refund if taxes were withheld from other income.

What if I have a job and SSDI — how do I know if I owe tax?

Add your wages, any interest or dividends, and half your SSDI benefits. If that total exceeds the threshold for your filing status, you will owe tax on a portion of your benefits. A tax preparer can calculate the exact amount using the IRS worksheet.

Can I reduce my SSDI tax by earning less?

Yes, if you can control your other income. Staying below the combined-income threshold means no tax on SSDI. However, if you are working, reducing your wages may not be practical. A tax professional can help you understand whether timing income or claiming deductions makes sense for your situation.

Do all states tax SSDI the same way?

No. Fourteen states tax SSDI; 36 do not. Each state that taxes SSDI has its own threshold and rules. Check your state's tax authority website or ask a tax preparer familiar with your state.

What if I did not file a return for a year when I owed tax on SSDI?

You can file an amended return (Form 1040-X) for any year within the last three years. The IRS will assess tax, interest, and penalties. Contact the IRS at 1-800-829-1040 to discuss payment options or hardship relief if you cannot pay in full.