Whether you pay federal income tax on SSDI depends on your total income

The Social Security Administration does not automatically tax your SSDI payments. Instead, the IRS looks at your combined income — which includes wages, interest, dividends, and part of your SSDI — to decide whether you owe federal income tax. If your combined income stays below a certain threshold, you pay nothing. If it goes above that threshold, you may owe tax on up to 85 percent of your SSDI benefits.

The threshold is low enough that many people receiving SSDI do not reach it. But if you have other income — from work, a pension, or investments — you need to know how it affects your SSDI tax bill.

Key Takeaways

  • You only pay federal income tax on SSDI if your combined income (SSDI plus other income) exceeds $25,000 for a single filer or $32,000 for a married couple filing jointly.
  • Combined income includes wages, self-employment income, interest, dividends, and half of your annual SSDI benefits.
  • If you cross the threshold, you may owe tax on up to 50 percent or 85 percent of your benefits, depending on how far over you go.
  • You do not have to file a tax return if your income is below the filing threshold, even if you receive SSDI.
  • State income tax rules vary — some states tax SSDI, others do not, and the rules differ from federal tax rules.

How the IRS calculates combined income

The IRS uses a specific formula to determine whether your SSDI is taxable. First, it adds up all your income sources: wages from work, net self-employment income, interest, dividends, capital gains, and half of your annual SSDI benefits. This total is your combined income.

The half-SSDI rule is the key. If you received $20,000 in SSDI during the year, the IRS counts $10,000 of that toward your combined income. This is why someone with modest wages and SSDI might still stay below the tax threshold.

Once you know your combined income, you compare it to the base amount set by the IRS. For 2024, the base amount is $25,000 for a single filer, head of household, or may have access to widow(er). For married couples filing jointly, it is $32,000. For married people filing separately, it is $0 — meaning almost any combined income triggers taxation.

The two-tier tax system for SSDI

If your combined income exceeds the base amount, you do not automatically owe tax on all your SSDI. Instead, the IRS uses a two-tier system that determines what percentage of your benefits become taxable.

Tier One: If your combined income is between the base amount and the base amount plus $9,000 (or $12,000 for married filing jointly), you may owe tax on up to 50 percent of your SSDI benefits. The actual amount depends on how far over the base you are.

Tier Two: If your combined income exceeds the base amount plus $9,000 (or $12,000 for married filing jointly), you may owe tax on up to 85 percent of your SSDI benefits. Again, the exact percentage depends on your specific income.

The IRS publishes a worksheet each year to calculate the exact amount. Most tax software and tax preparers handle this calculation automatically if you enter your SSDI amount correctly.

What counts as income for this calculation

Combined income includes almost all money you receive, with a few exceptions. Wages from work, self-employment income, interest from savings accounts, dividends from stocks, and capital gains all count. Rental income, pension payments, and distributions from retirement accounts also count.

Some income does not count toward combined income. Supplemental Security Income (SSI) does not count. Veterans benefits do not count. Gifts do not count. Neither do certain types of tax-exempt interest, such as interest from municipal bonds.

If you work while receiving SSDI, your wages count toward combined income, which may push you into the taxable range. This is separate from the work incentive rules that allow you to earn money without losing your SSDI benefits — those rules protect your benefits, but they do not protect you from income tax.

State income tax on SSDI

Federal income tax rules do not explore to state income tax. Some states do not tax SSDI at all. Others tax it using the same federal rules. Still others have their own thresholds and formulas.

If you live in a state with income tax, contact your state tax authority or check your state's tax website to learn the rules. States that do not tax SSDI include Alaska, Florida, Illinois, Mississippi, Nevada, South Dakota, Tennessee, Texas, Washington, and Wyoming. If you live elsewhere, your state may tax your SSDI, may tax only a portion of it, or may use different income thresholds than the federal government.

Filing a tax return when you receive SSDI

You are not required to file a federal income tax return if your income is below the filing threshold, even if you receive SSDI. For 2024, the filing threshold for a single person under age 65 is $14,600 in wages alone. If your only income is SSDI below the combined income threshold, you do not have to file.

However, filing a return may benefit you. If you had taxes withheld from wages or other income, filing allows you to claim a refund. If you have dependents, you may be able to claim the Child Tax Credit or Earned Income Tax Credit, which requires filing a return. The IRS also recommends filing if you are self-employed, even if your income is low, because it protects your Social Security record.

If you do file, report your SSDI on Form 1040 or Form 1040-SR (for people age 65 and older). You will also receive a Form SSA-1099 from Social Security showing your annual SSDI amount. Keep this form with your tax records.

What happens if you do not report SSDI on your taxes

Social Security reports your annual SSDI benefits to the IRS automatically. If you owe tax on your SSDI and do not file a return or report the income, the IRS will eventually notice the discrepancy. This can result in a notice of tax due, penalties, and interest charges.

If you made a mistake on a prior year's return, you can file an amended return using Form 1040-X. The IRS generally allows you to go back three years to claim a refund or correct an error. If you owe back taxes, paying as soon as possible reduces the interest that accumulates.

Frequently Asked Questions

If I work part-time while on SSDI, will I have to pay taxes on my SSDI?

Your wages count toward combined income, so yes, you may owe tax on your SSDI if your wages plus half your SSDI benefits exceed the base amount ($25,000 for single filers in 2024). However, SSDI has work incentives that let you earn money without losing benefits — those rules are separate from tax rules, so you keep your benefits even if you owe tax.

Do I have to pay taxes on SSDI if I am retired and also receive a pension?

Yes. Pension payments count toward combined income. If your pension plus half your SSDI exceeds the base amount, you may owe tax on part of your SSDI. The exact amount depends on how far over the threshold you are and whether you are married filing jointly.

What if I receive SSDI for my child — do I have to pay taxes on it?

If you receive SSDI as a parent or representative payee for a child, the rules are different. Generally, benefits paid to a child are not taxable to the parent. The child may have a tax obligation if they have other income, but the SSDI itself is usually not taxable to them either. Consult a tax professional for your specific situation.

Can I avoid paying taxes on SSDI by not reporting other income?

No. The IRS receives reports of wages, interest, dividends, and other income from employers and financial institutions. If you do not report this income on your tax return, the IRS will notice and send you a bill. It is better to file accurately and pay what you owe than to face penalties and interest later.

Will paying taxes on SSDI affect my benefits?

No. Paying income tax on your SSDI does not change your benefit amount or cause you to lose benefits. The tax is owed to the IRS, not to Social Security. Your SSDI payment stays the same regardless of whether you owe federal income tax.