You may owe federal income tax on SSDI, but most recipients do not

Whether you file taxes depends on your total income for the year, not on whether you receive SSDI alone. SSDI payments themselves are not taxable income. However, if you have other income—wages, interest, pensions, or certain other benefits—you must add up everything and compare it to the IRS filing thresholds. If your total income exceeds the threshold for your filing status, you must file a federal return.

The IRS has a special rule for SSDI: up to 85 percent of your benefits may become taxable if you have income from other sources and your "combined income" (defined below) crosses a certain level. This rule applies only if you have income beyond SSDI. If SSDI is your only income, you do not file a federal return and you owe no federal tax.

Key Takeaways

  • SSDI payments are not taxable by themselves, but you must file if your total income from all sources exceeds the IRS threshold for your filing status.
  • The IRS uses "combined income" to determine whether SSDI becomes taxable: this is your adjusted gross income plus nontaxable interest plus half your SSDI benefits.
  • If your combined income is below $25,000 (single) or $32,000 (married filing jointly), none of your SSDI is taxable, even if you have other income.
  • You report SSDI on Form 1040 using the amounts shown on your SSA-1099 form, which Social Security mails to you by January 31 each year.
  • Many SSDI recipients do not owe tax but should still file to claim the Earned Income Tax Credit or other refundable credits.

Understanding combined income and the SSDI taxation formula

The IRS does not tax SSDI the same way it taxes wages. Instead, it uses a two-tier system based on your combined income. Combined income is calculated as: your adjusted gross income (AGI) + nontaxable interest + one-half of your SSDI benefits.

If your combined income falls between $25,000 and $34,000 (single filer) or $32,000 and $44,000 (married filing jointly), up to 50 percent of your SSDI may be taxable. If your combined income exceeds $34,000 (single) or $44,000 (married), up to 85 percent of your SSDI may be taxable. The actual amount taxed is the lesser of: (1) the amount calculated using the IRS formula, or (2) 85 percent of your total SSDI for the year.

Example: You are single and receive $15,000 in SSDI for the year. You also earn $12,000 in wages. Your combined income is $12,000 + $0 (no nontaxable interest) + $7,500 (half of $15,000) = $19,500. Since $19,500 is below $25,000, none of your SSDI is taxable. You report $12,000 in wages and $0 in taxable SSDI.

When you must file a federal tax return

You must file a federal return if your gross income exceeds the standard deduction for your filing status and age. For 2024, the standard deduction is $14,600 for a single person under 65, $18,150 for a single person 65 or older, $29,200 for married filing jointly (both under 65), and $30,750 for married filing jointly (one spouse 65 or older). These amounts change each year.

If you are single, under 65, and your only income is $14,000 in SSDI, you do not file. If you are single, under 65, and you have $12,000 in SSDI plus $3,000 in wages, your total is $15,000, which exceeds $14,600, so you must file—even though none of your SSDI may be taxable.

You should also file if you have no filing requirement but you had income tax withheld from wages or other payments, or if you think you may be may have access to to a refundable credit such as the Earned Income Tax Credit (EITC) or the Additional Child Tax Credit. Many people with low incomes receive refunds even though they owe no tax.

Reporting SSDI on your tax return

Social Security sends you a Form SSA-1099 by January 31 each year. This form shows the total SSDI you received in the previous year in Box 5. You use this amount to calculate your combined income and to determine how much, if any, of your SSDI is taxable.

On your Form 1040, you report SSDI in the "Social Security benefits" line. You do not report the full amount from Box 5; you report only the taxable portion, which you calculate using the IRS worksheet or tax software. The worksheet is included in the Form 1040 instructions, and most tax software will calculate it for you if you enter the amount from Box 5.

If you file Form 1040-SR (for people 65 and older), the process is the same. If you file Form 1040-NR (as a nonresident alien), you also use the same SSDI taxation rules, though other parts of your return may differ.

How work incentives affect your tax filing

If you are working while on SSDI, you may be using a work incentive such as Impairment Related Work Expenses (IRWE) or a Plan to Achieve Self-Support (PASS). These reduce the income Social Security counts when deciding whether to suspend your benefits, but they do not reduce your income for tax purposes.

For example, if you earn $20,000 in wages and claim $3,000 in IRWE, Social Security counts only $17,000 toward your earnings limit. However, the IRS counts the full $20,000 as your gross income for tax filing purposes. You must report $20,000 on your Form 1040, not $17,000.

Similarly, expenses you deduct under PASS reduce your countable income for SSDI but do not reduce your taxable income for the IRS. The two systems use different rules, and you must follow both.

State and local taxes on SSDI

Most states do not tax SSDI benefits, but a few do. Currently, Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, and Vermont tax SSDI under certain conditions. The rules vary by state: some tax SSDI only if your income exceeds a threshold, others tax it only for higher-income recipients, and some have exemptions for people over a certain age or with certain disabilities.

If you live in one of these states, check your state's tax agency website or contact them directly to learn whether you owe state tax on your SSDI. You may need to file a state return even if you do not file a federal return. Local income taxes in some cities also explore, though they rarely affect SSDI recipients.

Using tax software or a tax professional

Free tax software is available to you through the IRS Free File program if your income is below a certain threshold (usually around $79,000). The IRS website lists participating software providers. Many of these programs have a special SSDI section that walks you through the combined income calculation and determines the taxable portion automatically.

If you prefer to work with a person, you can visit a Volunteer Income Tax information (VITA) site, which offers free tax preparation for people with low to moderate income. VITA sites are located in libraries, community centers, and nonprofits across the country. You can find one near you through the IRS website.

A tax professional or CPA can also prepare your return, though you will pay a fee. This may be worth it if your situation is complex—for example, if you have self-employment income, rental income, or multiple sources of unearned income in addition to SSDI.

Frequently Asked Questions

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

No. If SSDI is your only income and it is below the standard deduction for your age and filing status, you do not have to file a federal return. However, you may want to file anyway if you think you may have access to for a refundable credit like the EITC.

What if I did not receive a Form SSA-1099?

Contact Social Security at 1-800-772-1213 or visit your local Social Security office. You can also create an account on ssa.gov and view your SSA-1099 online. You need the amount from Box 5 to file your return accurately.

Can I amend my return if I made a mistake reporting SSDI?

Yes. File Form 1040-X (Amended U.S. Individual Income Tax Return) with the IRS. You generally have three years from the original due date to amend. If you owe additional tax, you may owe interest and penalties, so file as soon as you discover the error.

Does filing taxes affect my SSDI benefits?

Filing a tax return does not change your SSDI payment amount. Social Security does not reduce benefits based on whether you file taxes. However, if you are working, your earnings may affect your benefits under the earnings limit, which is separate from tax filing.

What if I owe taxes but cannot pay?

File your return on time even if you cannot pay the full amount. The IRS offers payment plans and may reduce penalties if you pay as much as you can. Contact the IRS at 1-800-829-1040 to discuss options, or visit irs.gov for information on installment agreements.