The short answer: most SSDI payments are not taxed, but some are, depending on your other income

Social Security Disability Insurance (SSDI) is not automatically tax-free. Whether you owe federal income tax on your SSDI depends on how much other income you have. If SSDI is your only income, you typically pay no federal tax. If you have earnings from work, a pension, or investment income, part of your SSDI may become taxable.

The IRS uses a formula based on your "combined income"—a calculation that includes your SSDI, half of your SSDI, plus all your other income. Once your combined income crosses a threshold (currently $25,000 for single filers, $32,000 for married couples filing jointly), up to 50 percent of your SSDI becomes subject to federal income tax. If your combined income is very high, up to 85 percent of your SSDI can be taxed.

State taxes are different. Some states do not tax SSDI at all. 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 rules separately.

Key Takeaways

  • SSDI is tax-free only if it is your sole income; any other income (wages, pensions, interest, capital gains) can trigger federal taxation on part of your SSDI.
  • The IRS uses "combined income" to decide how much SSDI is taxable, and the thresholds are $25,000 for single filers and $32,000 for married couples filing jointly.
  • Up to 50 percent of your SSDI becomes taxable once you cross the threshold; if combined income is very high, up to 85 percent can be taxed.
  • State income tax treatment of SSDI varies widely—some states exempt it entirely, others tax it like the federal government, and you must check your own state's rules.
  • The Social Security Administration sends Form SSA-1099 each January showing your SSDI for the prior year, which you use to calculate whether you owe tax.

How the IRS calculates whether your SSDI is taxable

The IRS does not straightforward add up your SSDI and other income. Instead, it uses a specific formula called combined income. Here is what goes into it:

Your combined income equals your adjusted gross income (AGI) plus nontaxable interest plus half of your SSDI. Once you know that number, you compare it to the IRS threshold. For 2024, the threshold is $25,000 if you are single or married filing separately, and $32,000 if you are married filing jointly. (These thresholds have not changed since 1984, so they do not adjust for inflation.)

If your combined income is below the threshold, none of your SSDI is taxed. If it is above the threshold, the IRS taxes the smaller of two amounts: either 50 percent of the amount over the threshold, or 50 percent of your SSDI itself. This is the "first tier" of taxation.

There is also a second tier. If your combined income exceeds $34,000 (single) or $44,000 (married filing jointly), an additional amount of SSDI becomes taxable. At this level, up to 85 percent of your SSDI can be subject to federal income tax. The calculation is complex, and most people use tax software or a tax preparer to work through it.

What counts as income that triggers SSDI taxation

The IRS counts many types of income toward your combined income. Wages from work count in full. Self-employment income counts in full. Pensions count in full. Interest and dividends count in full. Capital gains count in full. Rental income counts in full.

Some income does not count. Supplemental Security Income (SSI) does not count. Veterans benefits do not count. Workers' compensation does not count. Some railroad retirement benefits do not count. Certain municipal bond interest does not count. The key is that the IRS is looking at income that would normally be taxable to you.

If you are working while receiving SSDI, even part-time earnings can push you over the threshold and make part of your SSDI taxable. This is one reason to understand your combined income before the tax year ends—you may be able to adjust your withholding or plan ahead.

State tax treatment of SSDI varies widely

Thirteen states do not tax SSDI at all, no matter how much other income you have. These states are: Illinois, Iowa, Kansas, Louisiana, Massachusetts, Michigan, Mississippi, Missouri, Montana, New York, Ohio, Pennsylvania, and Virginia. If you live in one of these states, you have no state income tax obligation on your SSDI.

Most other states follow the federal rule: if your combined income exceeds the threshold, part of your SSDI is taxable at the state level. However, some of these states use different thresholds or different percentages than the federal government. Colorado, for example, exempts SSDI entirely for residents over 55. Minnesota taxes SSDI but allows a larger exemption than the federal threshold.

A few states have no income tax at all (Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, and Wyoming), so SSDI is not taxed there regardless of your other income. If you moved to a new state during the tax year, you may owe tax to both states, or your old state may not tax you depending on when you moved and that state's rules.

The safest approach is to contact your state's department of revenue or tax authority and ask directly about SSDI taxation in your state. Your tax preparer can also look this up for you.

How to report SSDI on your tax return

Each January, the Social Security Administration mails you a Form SSA-1099 showing how much SSDI you received in the prior year. This form goes to you and to the IRS. You use the amount on this form to calculate whether any of your SSDI is taxable.

If you file a federal tax return, you report your SSDI on line 5b of Form 1040 (the main federal tax form). You also report the taxable portion of your SSDI on line 5b. Tax software walks you through this calculation, and it is one of the first things a tax preparer will ask about.

You do not have to file a federal tax return if your income is below the filing threshold for your filing status. However, if you have income from work or other sources, you may want to file anyway to claim refundable tax credits like the Earned Income Tax Credit (EITC). Even if you do not owe tax, filing can result in a refund.

If you did not receive a Form SSA-1099 by early February, contact Social Security at 1-800-772-1213 to request a replacement. You will need the form to file accurately.

Planning ahead if you work while receiving SSDI

If you are working and receiving SSDI, your combined income is likely to be high enough that part of your SSDI becomes taxable. This is not a reason to stop working—SSDI is designed to allow work, and you may have a work incentive plan that protects your benefits. However, it does mean you should plan for taxes.

One option is to have taxes withheld from your SSDI payment. You can request this by completing Form W-4V and sending it to your local Social Security office. This way, money is set aside each month and you are less likely to owe a large amount at tax time. Another option is to make quarterly estimated tax payments if you have self-employment income or other income that does not have withholding.

If you are unsure how much of your SSDI will be taxable, a tax preparer or the IRS can help you estimate it. Knowing this in advance means you can adjust your withholding or plan your budget accordingly.

Frequently Asked Questions

If I receive SSDI and nothing else, do I have to file a tax return?

No. If SSDI is your only income, you do not have to file a federal tax return because your income is below the filing threshold. However, if you have any other income—even a small amount from work—you may need to file. Check the IRS filing requirements for your age and filing status, or ask a tax preparer.

Can I reduce my SSDI taxes by earning less money?

Yes, but only if you have control over your income. If you are self-employed or can adjust your hours at work, earning less would lower your combined income and reduce the amount of SSDI that is taxable. However, you would also have less total income, so the trade-off may not be worth it. A tax preparer can help you model different scenarios.

What if I owe taxes on my SSDI but cannot pay?

The IRS offers payment plans and other options if you cannot pay in full by the important date. You can request an installment agreement, ask for an extension, or explore an offer in compromise if your situation is severe. Contact the IRS at 1-800-829-1040 or visit irs.gov to learn about your options. Do not ignore a tax bill—the IRS will pursue collection, and penalties and interest will grow.

Does my spouse's income affect whether my SSDI is taxable?

If you are married and file jointly, yes—your spouse's income is included in your combined income calculation. If you file separately, only your income counts. Filing separately usually results in more of your SSDI being taxed, so most couples benefit from filing jointly. A tax preparer can calculate both scenarios for you.

If I move to a state that does not tax SSDI, do I get a refund for prior years?

No. Your tax obligation is based on where you lived when you earned the income. If you moved partway through the year, you may owe tax to both your old state and your new state for the portion of the year you lived in each. Contact both states' tax authorities to understand your obligation, or ask a tax preparer familiar with multi-state returns.