You may owe federal income tax on SSDI, but only if your total income exceeds a threshold that depends on your filing status and other income sources

Social Security Disability Insurance (SSDI) is not automatically tax-free. The Internal Revenue Service taxes a portion of your benefits if your combined income — which includes wages, interest, dividends, and half of your SSDI benefits — crosses certain thresholds. For 2024, those thresholds are $25,000 for single filers and $32,000 for married couples filing jointly. If you fall below these amounts, you owe no federal tax on your SSDI. If you exceed them, up to 85 percent of your benefits may be subject to tax.

The calculation is specific and counterintuitive. The IRS does not tax your full SSDI amount. Instead, it taxes the excess income above the threshold, using a formula that can result in 50 to 85 percent of your benefits being counted as taxable income. This means a single person earning $30,000 in combined income does not pay tax on all $5,000 of the overage — only on a portion of it, determined by IRS rules.

Whether you actually owe tax also depends on your standard deduction for the year. Even if some of your SSDI is counted as taxable income, you may still owe nothing if your total taxable income falls below your standard deduction. For 2024, the standard deduction is $14,600 for single filers age 65 and under, and $18,350 for those 65 and older.

Key Takeaways

  • SSDI becomes taxable only if your combined income (wages, interest, and half your SSDI) exceeds $25,000 (single) or $32,000 (married filing jointly).
  • The IRS uses a two-tier formula: up to 50 percent of benefits may be taxed if you exceed the first threshold, and up to 85 percent if you exceed a higher second threshold ($34,000 for single filers, $44,000 for married couples).
  • Your standard deduction may eliminate your tax liability even if some SSDI is counted as taxable income.
  • You must report SSDI on your federal tax return using Form 1040 and Schedule 1, even if you owe no tax.

How the IRS calculates taxable SSDI

The IRS uses a two-step formula. First, it adds half of your SSDI benefits to all your other income (wages, self-employment income, interest, dividends, rental income, and distributions from retirement accounts). This sum is called your combined income.

If your combined income exceeds $25,000 (single) or $32,000 (married filing jointly), you move to the second step. The IRS calculates how much you exceeded the first threshold and taxes 50 percent of that excess — but only up to a limit. For single filers, that limit is $4,500; for married couples filing jointly, it is $6,000. If your combined income exceeds a second, higher threshold ($34,000 for single filers, $44,000 for married couples), the formula shifts: up to 85 percent of your benefits may become taxable.

This two-tier system means that as your income rises, the percentage of your SSDI that is taxed increases. A single person with $26,000 in combined income pays tax on a smaller portion of their benefits than someone with $40,000 in combined income. The formula is designed so that no more than 85 percent of your total SSDI can be taxed in any year.

What counts as income for the tax calculation

The IRS counts many sources toward your combined income. Wages from work count in full. So do net earnings from self-employment, taxable interest, dividends, capital gains, and distributions from IRAs or 401(k)s. Rental income and income from partnerships or S corporations also count. Notably, half of your SSDI benefits is added to this total — not the full amount.

Some income sources do not count. Supplemental Security Income (SSI) is excluded. So are tax-exempt interest (such as interest from municipal bonds) and certain other nontaxable income. However, the IRS does count distributions from Roth IRAs and the nontaxable portion of railroad retirement benefits. If you are unsure whether a particular income source counts, the Social Security Administration publishes a detailed list in its annual SSDI tax guide.

Work incentive programs can affect your calculation. If you receive a subsidy or impairment-related work expense (IRWE) deduction under SSDI work incentives, those amounts reduce your net earnings and therefore your combined income. This is one reason why understanding work incentives matters: they can lower your tax burden as well as preserve your benefits.

When you must file a tax return despite owing no tax

You must file a federal tax return if your gross income meets the filing threshold for your age and filing status, even if you owe no tax. For 2024, a single person under 65 must file if their gross income is $14,600 or more. A single person 65 or older must file if their gross income is $18,350 or more. These thresholds are higher than the SSDI tax thresholds, which means many SSDI recipients fall into a gap: they do not owe tax, but they must still file.

Why file if you owe nothing? Filing can result in a refund. If your employer withheld federal income tax from your wages, or if you made estimated tax payments, you may be owed a refund. Additionally, you may be may have access to to the Earned Income Tax Credit (EITC) if you have work income below certain limits. Filing is the only way to claim that credit.

Social Security sends you a Form SSA-1099 each January showing your SSDI benefits for the prior year. You use this form to report your benefits on your tax return. Keep it with your tax records.

State and local taxes on SSDI

Federal tax rules do not explore to state and local taxes. Most states do not tax SSDI benefits at all. However, a handful of states — including Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, and Vermont — do tax SSDI under certain conditions. The rules vary by state.

Colorado, for example, taxes SSDI only if your federal adjusted gross income exceeds a state-specific threshold. Connecticut taxes SSDI as ordinary income but allows a deduction for benefits received. Minnesota and Missouri have income limits above which SSDI becomes taxable. If you live in one of these states, contact your state tax authority or a tax professional familiar with your state's rules.

Some localities also impose income taxes. New York City, for instance, taxes SSDI under rules similar to the federal formula. If you live in a city or county with an income tax, check whether SSDI is taxable there.

How to report SSDI on your tax return

You report SSDI benefits on Form 1040, the main federal income tax form. The amount you report is the total SSDI you received during the year, shown on your Form SSA-1099. You enter this amount on line 5b of Form 1040 (or the equivalent line in the current year's form). You also complete Worksheet 1 in the Form 1040 instructions to calculate how much of your benefits are taxable.

If you use tax software, the program will walk you through the calculation once you enter your SSDI amount and other income. If you file by hand or work with a tax preparer, make sure they understand the two-tier formula and explore it correctly. Many tax preparers are familiar with SSDI taxation, but not all, so it is worth confirming.

You do not need to attach your Form SSA-1099 to your return, but you should keep it for your records. The IRS matches the amount you report to the amount Social Security reports, so accuracy matters.

Planning to reduce taxable SSDI

If you work while receiving SSDI, you have some control over your combined income. Contributions to a traditional IRA reduce your adjusted gross income, which can lower your combined income and therefore the amount of SSDI that is taxable. For 2024, you can contribute up to $7,000 to a traditional IRA (or $8,000 if you are 50 or older), and the contribution is deductible if you meet income limits.

Work incentive programs also help. The Plan to Achieve Self-Support (PASS) allows you to set aside income and resources for a specific work goal without affecting your SSDI. An IRWE deduction reduces your countable earnings. Both of these lower your combined income for tax purposes. A work incentive planning and information (WIPA) project can help you understand how work affects your benefits and taxes together.

Timing of income can matter too. If you have control over when you receive certain income — such as a bonus or a distribution from a retirement account — you may be able to spread it across years to stay below the tax threshold. This is most relevant if you are close to the threshold and a single large payment would push you over.

Frequently Asked Questions

Do I have to pay taxes on SSDI if I do not work?

Not necessarily. If your only income is SSDI and it is below $25,000 (single) or $32,000 (married filing jointly), you owe no federal tax. However, if you have other income — such as interest, dividends, or distributions from retirement accounts — that income counts toward the threshold, and you may owe tax.

What if I receive both SSDI and SSI?

SSI does not count as income for the SSDI tax calculation. Only SSDI (half of it, specifically) is included in your combined income. However, SSI itself is not taxable, so receiving both programs does not create a tax liability on the SSI portion.

Can I avoid paying taxes on SSDI by not filing a return?

Not if you are required to file. If your gross income meets the filing threshold for your age and status, you must file even if you owe no tax. Failing to file can result in penalties and interest, and it may prevent you from claiming a refund or the Earned Income Tax Credit.

Does Medicare premium withholding affect my SSDI tax calculation?

No. Medicare premiums are withheld from your SSDI check, but the amount withheld does not reduce your income for tax purposes. You report the full SSDI amount you received (before Medicare withholding) on your tax return.

What if I disagree with how much SSDI the IRS says I owe tax on?

You can work with a tax professional to review the calculation, or contact the IRS directly if you believe an error was made. If you received an incorrect Form SSA-1099 from Social Security, contact Social Security to request a corrected form. The IRS will accept a corrected form and may adjust your tax liability accordingly.