Whether your SSDI is taxable depends on your total income, not just what you receive from Social Security

Social Security Disability Insurance (SSDI) can be taxable, but only if your combined income exceeds certain thresholds. The IRS counts SSDI as income for tax purposes, but you do not automatically owe tax on it. Instead, the IRS uses a formula based on your "combined income" — which includes wages, interest, dividends, and half of your SSDI benefits — to determine whether any portion of your benefits is subject to federal income tax.

The threshold amounts have not changed since 1984. For a single filer, you begin owing tax on SSDI if your combined income exceeds $25,000. For married couples filing jointly, the threshold is $32,000. If you are married filing separately, the threshold is $0 — meaning any combined income at all can trigger taxation of your benefits.

State income tax is a separate question. Some states do not tax SSDI at all, while others follow federal rules or have their own thresholds. You will need to check your state's tax rules separately.

Key Takeaways

  • SSDI becomes taxable only if your combined income (wages plus half your SSDI plus other income) exceeds $25,000 for single filers or $32,000 for married couples filing jointly.
  • The IRS counts half of your SSDI benefits as income when calculating whether you owe tax, not the full amount you receive.
  • If you have little or no other income, your SSDI is usually not taxable, even though you must report it on your tax return.
  • State tax rules vary widely — some states do not tax SSDI at all, while others tax it the same way the federal government does.

How the IRS calculates whether your SSDI is taxable

The IRS uses a specific formula to determine the taxable portion of your SSDI. First, they add up your "combined income": your adjusted gross income (wages, self-employment income, interest, dividends, and other sources) plus half of your SSDI benefits plus any tax-exempt interest you received.

Next, they compare that combined income to the threshold for your filing status. If your combined income is below the threshold, none of your SSDI is taxable. If it exceeds the threshold, the IRS calculates how much of your SSDI becomes taxable using a two-tier system. Up to 50 percent of your benefits may be taxable in the first tier, and up to an additional 35 percent may be taxable in the second tier, meaning up to 85 percent of your total SSDI could theoretically be subject to tax.

The actual calculation is complex, and most people benefit from using tax software or a tax preparer who can run the numbers. The Social Security Administration provides a worksheet in Publication 915 (Social Security and Equivalent Railroad Retirement Benefits) if you want to calculate it yourself.

Common situations where SSDI remains tax-free

If you receive SSDI and have no other income — no wages, no interest, no rental income — your benefits are not taxable, even though you must still file a tax return and report them. This is the most common scenario for people who are unable to work and have no other income sources.

If you are married filing jointly and your combined household income (including your spouse's wages and your SSDI) stays below $32,000, neither of you owes tax on the SSDI portion. For example, if your spouse earns $20,000 and you receive $15,000 in SSDI annually, your combined income is $27,500 (the $20,000 in wages plus half of the $15,000 SSDI). That is below the $32,000 threshold, so your SSDI is not taxable.

If you have a small amount of other income — say, $2,000 in interest or a part-time job earning $3,000 — you may still fall below the threshold depending on your filing status and the amount of SSDI you receive. The key is that only income above the threshold triggers taxation of your benefits.

When SSDI becomes taxable: examples with real numbers

Suppose you are single and receive $18,000 per year in SSDI. You also earn $10,000 from part-time work. Your combined income is $19,000 ($10,000 in wages plus $9,000, which is half your SSDI). Since $19,000 is below the $25,000 threshold for single filers, your SSDI is not taxable.

Now suppose you are single and receive $18,000 in SSDI, but you also have $20,000 in pension income. Your combined income is $29,000 ($20,000 in pension plus $9,000 in half your SSDI). This exceeds the $25,000 threshold by $4,000. Using the IRS formula, up to 50 percent of your SSDI becomes taxable — in this case, roughly $2,000 of your $18,000 in benefits would be subject to federal income tax.

If you are married filing jointly, receive $18,000 in SSDI, and your spouse earns $25,000, your combined income is $34,000 ($25,000 in wages plus $9,000 in half your SSDI). This exceeds the $32,000 threshold by $2,000. Again, the IRS formula determines the taxable portion, which would be less than the full $2,000 overage.

State income tax and SSDI

Thirteen states do not tax SSDI at all: Colorado, Delaware, Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Massachusetts, Mississippi, New York, North Carolina, and Ohio. If you live in one of these states, you do not owe state income tax on your SSDI regardless of your other income.

Other states follow the federal rule: they tax SSDI only if your combined income exceeds the federal threshold. Still others have their own thresholds or rules. For example, some states exclude SSDI from taxation entirely for people over a certain age or with income below a certain level.

You can find your state's specific rules by contacting your state tax authority or checking the state revenue department website. If you live in a state that taxes SSDI, you will need to file a state return in addition to your federal return, even if you owe no federal tax.

Reporting SSDI on your tax return

The Social Security Administration sends you a Form SSA-1099-SM each January showing the total SSDI you received in the previous year. You must report this amount on your federal tax return, even if none of it is taxable. You will enter it on Form 1040 (the main federal income tax form) and use the worksheet in Publication 915 to determine whether any portion is taxable.

If you owe tax on your SSDI, you can pay it when you file your return, or you can request that the Social Security Administration withhold taxes from your monthly benefit payment. To set up withholding, you complete Form W-4V (Voluntary Withholding Request) and submit it to your local Social Security office or online through your my Social Security account.

Many people choose to have taxes withheld so they do not face a large bill at tax time. The withholding is voluntary, and you can change or stop it at any time.

What happens if you do not report SSDI on your tax return

The Social Security Administration reports all SSDI payments to the IRS, so the IRS knows exactly how much you received. If you do not report it on your tax return, the IRS will eventually notice the discrepancy. You may receive a notice asking you to file a return or explaining that you owe additional tax plus penalties and interest.

Even if your SSDI is not taxable, you are required to file a return and report it. Filing protects you from penalties and keeps your tax record accurate. If you cannot afford to pay any tax you owe, the IRS offers payment plans and other options — not filing at all creates far more problems.

Frequently Asked Questions

Do I have to file a tax return if I only receive SSDI and no other income?

Yes. You must file a federal tax return and report your SSDI, even if none of it is taxable. The Social Security Administration reports your benefits to the IRS, and filing ensures your record is correct and protects you from penalties. Many people who owe no tax still file to claim refundable credits like the Earned Income Tax Credit.

If I have SSDI and start working part-time, will my benefits be reduced?

That depends on whether you are under or over full retirement age and how much you earn. SSDI has an earnings limit (currently $1,550 per month in 2024, though this changes annually). If you earn more than that, your benefits are reduced by $1 for every $2 you earn above the limit. This is separate from whether your benefits are taxable for income tax purposes.

Can I reduce my taxable SSDI by making charitable donations?

Charitable donations reduce your overall taxable income but do not directly reduce the portion of SSDI that is taxable. The IRS calculates taxable SSDI using a specific formula based on combined income. However, if charitable donations lower your combined income below the threshold, your SSDI would no longer be taxable.

What if I disagree with the amount of SSDI the Social Security Administration says I received?

Contact the Social Security Administration directly at 1-800-772-1213 or visit your local office. Bring your Form SSA-1099-SM and any records of payments you received. The Social Security Administration can issue a corrected form if there is an error. Do not file your tax return until the discrepancy is resolved.

If I live in a state that does not tax SSDI, do I still owe federal tax on it?

Yes. State and federal tax rules are separate. Even if your state does not tax SSDI, you may still owe federal income tax on it if your combined income exceeds the federal threshold. You will file both a federal return and a state return, and the rules for each apply independently.