Most people on SSDI do not file a tax return

Whether you file taxes on SSDI income depends on how much money you receive and whether you have other income. For most people receiving Social Security Disability Insurance, the answer is no — you will not owe federal income tax on your SSDI payments, and you will not need to file a return just because of SSDI alone.

The key factor is your combined income. Social Security has a specific formula to determine if any of your SSDI is taxable. Even if some of your SSDI becomes taxable under this formula, you may still not be required to file — it depends on whether your total income crosses the filing threshold for your age and filing status.

The IRS and Social Security are separate systems, and they use different rules. Understanding which rule applies to you prevents you from filing unnecessarily or missing a requirement you actually have.

Key Takeaways

  • You do not owe federal income tax on SSDI itself, but some of your SSDI can become taxable if you have other income above a certain amount.
  • Social Security uses "combined income" — your SSDI plus half your SSDI plus any other income — to decide if any SSDI is taxable.
  • Even if some SSDI becomes taxable, you may not be required to file a return unless your total income exceeds the IRS filing threshold for your age.
  • You will receive a Form SSA-1099 from Social Security showing your SSDI payments; the IRS uses this to cross-check your return.
  • If you have earned income, work-related income, or income from other sources, you are more likely to need to file.

How Social Security decides if SSDI is taxable

Social Security uses a calculation called combined income to determine whether any of your SSDI payments are subject to federal income tax. Combined income is the sum of three things: your adjusted gross income (AGI), any non-taxable interest you earned, and half of your SSDI benefits.

If your combined income is below a certain threshold, none of your SSDI is taxable. If it exceeds that threshold, up to 50 percent of your SSDI may be taxable, and in some cases up to 85 percent may be taxable. The thresholds are $25,000 for single filers and $32,000 for married couples filing jointly. These thresholds have not changed since 1984 and do not adjust for inflation.

The thresholds are low enough that many people with modest other income will have some SSDI become taxable. However, having taxable SSDI does not automatically mean you must file a return — that depends on a separate IRS rule about filing thresholds.

When the IRS requires you to file a return

The IRS has its own filing requirements that are independent of whether your SSDI is taxable. You must file a federal income tax return if your gross income exceeds a certain amount based on your age and filing status. 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.

Gross income for IRS purposes includes wages, self-employment income, interest, dividends, and other sources — but not SSDI itself. This is the critical difference: SSDI payments do not count toward the IRS filing threshold, even if some of that SSDI is taxable under Social Security's combined income rule.

This means you could have taxable SSDI but still not be required to file if your other income is below the IRS threshold. Conversely, you could have no taxable SSDI but still be required to file if you have other income above the threshold.

What counts as "other income" for these calculations

Other income includes wages from work, self-employment income, interest from savings accounts or bonds, dividends from stocks, rental income, and income from pensions or annuities. It also includes income from a spouse if you are married filing jointly.

Other income does not include Supplemental Security Income (SSI), which is a separate program from SSDI. It also does not include certain types of support like food stamps, housing information, or gifts from family members. Some types of income are non-taxable but still count toward the combined income calculation — for example, tax-exempt interest from municipal bonds.

If you are unsure whether something you received counts as income, the safest approach is to gather all documents showing money you received during the year and bring them to a tax preparer or the IRS. Many tax preparation services offer free help to people with low to moderate income.

The Form SSA-1099 and what it means

In January, Social Security sends you a Form SSA-1099 showing the total SSDI you received in the previous year. This form goes to you and to the IRS. The form does not tell you whether your SSDI is taxable — it straightforward reports the amount you received.

You will need this form to complete your tax return if you file one. If you do not file a return, you do not need to do anything with the SSA-1099 — Social Security has already reported it to the IRS. Do not throw it away, though; keep it with your tax records for at least three years in case the IRS has questions.

If you do not receive an SSA-1099 by early February, contact Social Security to request a replacement. You can call 1-800-772-1213 or visit your local Social Security office.

Situations where you should file even if not required

Even if you are not required to file a return, you may want to file one. If you had taxes withheld from wages or other income during the year, filing a return may result in a refund. If you are may have access to to the Earned Income Tax Credit (EITC) or the Additional Child Tax Credit, you must file to claim them, even if your income is below the filing threshold.

Some people on SSDI also work part-time or have other income sources. If you fall into this situation, filing a return is usually the right choice because it documents your income and may result in a refund or a credit you are may have access to to.

If you are unsure whether filing would benefit you, a tax preparer can review your situation at no cost through programs like VITA (Volunteer Income Tax information), which serves people with income below a certain level.

What happens if you file incorrectly or do not file when you should

If you file a return and report your SSDI incorrectly, the IRS will likely catch the error when it compares your return to the SSA-1099 Social Security sent them. The IRS will send you a notice asking you to correct it. You can respond by filing an amended return (Form 1040-X) or by responding to the notice with an explanation.

If you do not file when you are required to, the IRS may assess a penalty. However, if you are owed a refund, there is no penalty for not filing — you straightforward will not receive the refund unless you file. The statute of limitations for claiming a refund is three years, so if you are owed money, it is worth filing even if you are late.

If you are concerned you made a mistake on a past return, the IRS offers a process called the Voluntary Disclosure Practice that may reduce or eliminate penalties. A tax professional can help you determine whether this applies to your situation.

Frequently Asked Questions

Do I have to report SSDI on my tax return if I did not work?

Not necessarily. If SSDI is your only income and your combined income is below $25,000 (or $32,000 if married filing jointly), none of your SSDI is taxable and you do not need to file. If you have other income like interest or a pension, you may need to file depending on the total.

What if I worked part-time and received SSDI?

Your wages count as other income and will likely push your combined income above the threshold, making some SSDI taxable. You should file a return to report your wages. A tax preparer can calculate exactly how much SSDI becomes taxable and whether you owe tax or are owed a refund.

Can I get in trouble for not filing if I do not owe taxes?

If you are not required to file and you do not file, there is no penalty. However, if you are required to file and you do not, the IRS can assess a penalty. If you are unsure whether you are required to file, it is safer to file or consult a tax professional.

Who can help me figure out if I need to file?

VITA (Volunteer Income Tax information) offers free tax help to people with income below a certain level. You can find a VITA site near you at irs.gov. You can also call Social Security at 1-800-772-1213 to ask about your specific situation, though they cannot give tax information.

What if I made a mistake on a return I filed years ago?

You can file an amended return using Form 1040-X within three years of the original filing date to claim a refund. If you owe additional tax, the IRS may assess interest and penalties, but you can request relief if you have a reasonable cause. A tax professional can help you decide whether to amend.