Most SSDI recipients do not file federal income tax returns, but some must

Whether you file taxes on your SSDI depends on whether your total income crosses the threshold the IRS sets each year. For most people receiving only SSDI, the answer is no — your benefits alone do not push you over the filing requirement. But if you have other income (wages, self-employment, interest, rental income), you may have to file even if SSDI is your main source of money.

The IRS treats SSDI differently from earned income. Your SSDI benefit itself is not taxable income in the way a paycheck is. However, if you have other income and your "combined income" (a specific calculation the IRS uses) exceeds a certain amount, a portion of your SSDI becomes taxable. This is why some SSDI recipients file taxes and others do not.

The threshold changes each year because it is tied to the standard deduction. For 2024, a single filer with only SSDI income does not have to file unless they had other income above roughly $1,550. If you are married filing jointly and both spouses receive SSDI, the threshold is higher. The exact numbers shift annually, so you should check the current year's IRS guidance or ask a tax professional.

Key Takeaways

  • SSDI benefits themselves are not taxable, but you must file if your other income (wages, self-employment, interest) exceeds the IRS threshold for your filing status.
  • The IRS uses "combined income" — a formula that includes half your SSDI plus all other income — to determine whether any SSDI becomes taxable.
  • If your combined income is below the threshold, you do not have to file, and no portion of your SSDI is taxed.
  • If your combined income exceeds the threshold, you file a regular 1040 and report the taxable portion of SSDI on line 5b.
  • You receive a Form SSA-1099 each January showing your SSDI payments for the prior year; keep it with your tax records even if you do not file.

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 formula called combined income. This number equals half your SSDI plus all your other income (wages, self-employment, interest, dividends, rental income, and most other sources). Once you know your combined income, you compare it to two "thresholds" to see if any SSDI becomes taxable.

For a single filer in 2024, the first threshold is $25,000. If your combined income is $25,000 or less, none of your SSDI is taxable, and you do not have to file a return (unless you have other income that requires filing). If your combined income is between $25,000 and $34,000, up to 50 percent of your SSDI may be taxable. If your combined income exceeds $34,000, up to 85 percent of your SSDI may be taxable.

For married couples filing jointly, the thresholds are $32,000 and $44,000. These numbers do not change year to year — they are permanent. However, the standard deduction (which determines whether you must file at all) does change, so the practical filing requirement shifts annually.

The calculation is complex, and the IRS provides a worksheet in the instructions to Form 1040 to help you work through it. Many tax software programs calculate this automatically. If you have SSDI and other income, a tax professional can tell you whether you owe tax and whether filing is required.

When you must file even if no SSDI is taxable

You may have to file a tax return even if your SSDI is not taxable, because your other income requires it. For example, if you earned $2,000 in wages during the year, you must file because your earned income exceeds the standard deduction for your filing status — regardless of your SSDI.

Similarly, if you are self-employed and had net earnings of $400 or more, you must file to pay self-employment tax, even if your combined income is below the SSDI taxability threshold. The filing requirement for self-employment tax is separate from the income tax filing requirement.

If you received unemployment benefits, you may also have to file. Some states tax unemployment; others do not. The same applies to interest or dividend income — if you earned any, you may cross the filing threshold depending on your filing status and total income.

What happens if you do not file when you should

If you owe tax and do not file, the IRS will eventually contact you. The penalty for not filing is usually steeper than the penalty for not paying, so filing on time is important even if you cannot pay the full amount owed. If you file late but owe tax, you will owe a failure-to-file penalty plus interest on the unpaid tax.

If you do not file and the IRS believes you owe tax, they may file a return for you (called a "Substitute for Return" or SFR). This return is usually less favorable to you than one you would file yourself, because the IRS does not claim deductions or credits you might be may have access to to. Once the IRS files for you, you can still file your own return to correct it, but you must act quickly.

If you do not file and you do not owe tax, there is no penalty. However, if you are due a refund (for example, because too much tax was withheld from wages), you have only three years to claim it. After that, the refund goes to the U.S. Treasury.

Form SSA-1099 and your tax records

Each January, the Social Security Administration sends you a Form SSA-1099 showing the total SSDI you received in the prior year. This form is for your records and for the IRS. You do not attach it to your tax return, but you should keep it with your tax documents.

The SSA-1099 shows your gross SSDI benefit — the full amount you received before any deductions (such as Medicare premiums or child support withholding). This is the number you use in the combined income calculation. If you lose your SSA-1099, you can request a replacement from Social Security by calling 1-800-772-1213 or visiting ssa.gov.

If you file taxes, having your SSA-1099 on hand makes the process faster and more accurate. If you do not file, keep it anyway for your records. If the IRS ever questions your income or your filing status, the SSA-1099 is proof of what you reported.

SSDI and state income tax

Federal law says SSDI cannot be taxed by the federal government (except in the limited way described above). However, some states tax SSDI, and others do not. This varies widely by state and sometimes depends on your age or other factors.

If you live in a state that taxes SSDI, you may have to file a state return even if you do not file a federal return. Some states that tax SSDI offer exemptions for people over a certain age (often 65) or for people with low incomes. A few states tax SSDI only if your income exceeds a high threshold.

To find out whether your state taxes SSDI, contact your state's department of revenue or tax authority. They can tell you the current rules and whether you must file a state return. Many state tax agencies also have websites with this information.

Working while on SSDI and tax filing

If you are working and receiving SSDI, you almost certainly have to file a federal tax return because your wages will exceed the filing threshold. Your SSDI is still not taxable in the usual sense, but your combined income (half your SSDI plus your wages) may trigger the SSDI taxability rules described above.

Work incentive programs like Impairment Related Work Expenses (IRWE) and Plans to Achieve Self-Support (PASS) can reduce your countable earnings for SSDI purposes, but they do not reduce your income for tax purposes. You report your full wages on your tax return, even if some of them are excluded from your SSDI benefit calculation.

If you are using a work incentive, keep detailed records of your expenses and your plan. These records help both Social Security and the IRS understand your situation. A tax professional familiar with SSDI work incentives can help you file correctly and claim deductions you may be may have access to to.

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, you do not have to file a federal tax return. Your SSDI is not taxable income, and you will not owe federal income tax. However, check your state's rules — some states tax SSDI, and a few require filing even if you owe no tax.

What if I earned wages and received SSDI in the same year?

You must file a federal tax return because your wages exceed the filing threshold. Your SSDI is not taxable by itself, but your combined income (half your SSDI plus your wages) may cause a portion of your SSDI to become taxable. A tax professional can calculate the exact amount.

If I file taxes, do I report my SSDI on the same form as my wages?

Yes. You file a standard Form 1040. Your wages go on line 1a, and the taxable portion of your SSDI (if any) goes on line 5b. The IRS worksheet in the Form 1040 instructions helps you calculate how much of your SSDI is taxable based on your combined income.

What if I disagree with the amount of SSDI shown on my SSA-1099?

Contact Social Security at 1-800-772-1213 or visit your local office. They can verify the amount and issue a corrected form if there was an error. Keep the corrected SSA-1099 with your tax records. If you already filed with the wrong amount, you may need to file an amended return.

Can I claim SSDI as a dependent on someone else's tax return?

No. SSDI is not considered income for the purpose of the dependent exemption test. However, other rules about who can claim you as a dependent still explore. If you are unsure whether someone can claim you, ask a tax professional or call the IRS at 1-800-829-1040.