The form you use depends on whether your SSDI is your only income

If SSDI is your only income for the year, you may not need to file a tax return at all. The Social Security Administration does not require you to file taxes on SSDI benefits alone. However, if you have other income—wages from work, interest, dividends, or self-employment earnings—you will file the same tax forms as anyone else reporting that income, and you will report your SSDI separately on your return.

The IRS treats SSDI differently than other income. A portion of your benefits may be taxable if your total income exceeds certain thresholds, but you do not use a special SSDI-only form. Instead, you report your benefits on Form 1040 (the standard individual income tax return) or Form 1040-SR (if you are 65 or older), along with Schedule 1 if you have other types of income to report.

The Social Security Administration sends you a Form SSA-1099 each January showing the total SSDI you received the previous year. This is your record of benefits paid. You will use the amount from this form when you file your tax return.

Key Takeaways

  • If SSDI is your only income, you typically do not file a tax return, but you should verify this based on your specific situation.
  • If you have other income alongside SSDI, you file Form 1040 or Form 1040-SR and report your SSDI on that return.
  • The Social Security Administration sends Form SSA-1099 each January showing your total SSDI for the previous year.
  • A portion of your SSDI may be taxable if your combined income exceeds $25,000 (single filers) or $32,000 (married filing jointly), but you do not use a separate form to calculate this.

When you receive Form SSA-1099 and what it shows

In January, the Social Security Administration mails Form SSA-1099 to your address on file. This form shows the gross amount of SSDI benefits you received during the previous calendar year. Box 5 on the form displays your total benefits; this is the number you will reference when filing your return.

Keep this form with your tax records. If you file electronically, you do not need to mail it to the IRS, but you should have it available if the IRS ever asks questions about your reported income. If you did not receive a Form SSA-1099 by early February, contact the Social Security Administration at 1-800-772-1213 to request a replacement copy.

How to report SSDI on Form 1040

On Form 1040, SSDI appears on the line labeled "Social security benefits" in the income section. You enter the amount from Box 5 of your Form SSA-1099. The IRS worksheet that comes with Form 1040 instructions will then walk you through calculating whether any of your benefits are taxable based on your other income sources.

This calculation depends on what the IRS calls your "combined income"—a figure that includes your adjusted gross income, nontaxable interest, and half of your SSDI benefits. If your combined income stays below the thresholds ($25,000 for single filers, $32,000 for married filing jointly, $0 for married filing separately), none of your SSDI is taxable. If you exceed these thresholds, you may owe tax on up to 85 percent of your benefits, depending on how far over you go.

You do not calculate this yourself by hand. Tax software and tax preparers have the worksheets built in. When you enter your SSDI amount, the software automatically determines the taxable portion and includes it in your total income for the year.

If you have wages or self-employment income alongside SSDI

When you work and receive SSDI at the same time, you report both on the same return. Your wages appear on Form 1040 in the wages section (reported to you on Form W-2 by your employer). Your self-employment income, if you have it, goes on Schedule C (Profit or Loss from Business). Your SSDI still goes on the Social security benefits line.

The presence of wages or self-employment income is what typically pushes your combined income over the threshold, making a portion of your SSDI taxable. This is one reason why it matters to track all your income sources when you file. If you are unsure whether you need to file because your income is close to the threshold, filing is usually the safer choice—the IRS can assess penalties for not filing when you owe tax, but not for filing when you do not.

Other income sources that affect your SSDI tax situation

Interest from savings accounts, dividends from investments, rental income, and income from a pension or retirement account all count toward your combined income for SSDI tax purposes. Even small amounts of interest can push you over the threshold. These income sources go on their own lines on Form 1040 or on schedules attached to your return.

If you receive income from a pension or retirement account (such as an IRA distribution), that amount is reported on Form 1040 and included in your combined income calculation. This is true even if you do not owe tax on the pension itself—it still counts toward determining whether your SSDI is taxable.

What to do if you are unsure whether you need to file

The IRS publishes income thresholds each year that determine whether you must file. For 2024, if you are single and your gross income (including SSDI) is less than $14,600, you generally do not have to file. However, this threshold changes yearly, and your specific situation may require filing even if you are below it.

A tax preparer or the IRS Free File program (available at IRS.gov if your income is below a certain level) can help you determine whether filing is necessary. When in doubt, filing protects you. The cost of filing is usually far less than the cost of penalties if the IRS determines you should have filed.

Frequently Asked Questions

Do I need to file taxes if SSDI is my only income?

No, you typically do not need to file if SSDI is your only income for the year. However, if you have any other income—even a small amount of interest or part-time wages—you should file to determine whether you owe tax on a portion of your SSDI.

What if I lost my Form SSA-1099?

Contact the Social Security Administration at 1-800-772-1213 and request a replacement. You can also create a my Social Security account at ssa.gov and view your Form SSA-1099 online. Have your replacement before you file your return.

Can I file my taxes myself, or do I need a tax preparer?

You can file yourself using tax software, which includes the worksheets to calculate taxable SSDI. Many people with SSDI use free tax software through the IRS Free File program. A tax preparer can also handle this for you, and some offer free services if your income is below a certain level.

What happens if I report the wrong amount of SSDI on my return?

If you make an error, you can file an amended return using Form 1040-X. The IRS will contact you if they notice a discrepancy between your return and the Form SSA-1099 the Social Security Administration sent them. Correcting the error promptly is better than waiting for the IRS to reach out.

Does receiving SSDI affect my tax refund?

SSDI itself does not reduce your refund. Your refund is based on the total tax you owe for the year minus what you already paid through withholding. If a portion of your SSDI is taxable, it increases your tax liability, which could reduce your refund or turn it into a balance owed.