Federal income tax on SSDI depends on your total income, not just your benefits
You may owe federal income tax on your SSDI benefits if your combined income exceeds a certain threshold. Combined income means your SSDI benefits plus other income you receive — wages, interest, pensions, or other Social Security benefits. The threshold is low: $25,000 for a single filer, $32,000 for married filing jointly, and $0 for married filing separately.
The tax is not on all your SSDI. Instead, the IRS taxes a portion of your benefits based on how much your combined income exceeds the threshold. For most people receiving only SSDI, the combined income stays below the threshold and no tax is owed. But if you work part-time, receive a pension, or have investment income, you may cross that line.
The Social Security Administration does not withhold federal income tax from SSDI payments automatically. If you owe tax, you pay it when you file your federal return, or you can ask Social Security to withhold a flat amount from your monthly check.
Key Takeaways
- Federal tax on SSDI is based on combined income (benefits plus other income), not on SSDI alone.
- The threshold is $25,000 for single filers and $32,000 for married filing jointly; married filing separately is $0.
- Only a portion of your benefits may be taxed, not the full amount, and the calculation depends on how far you exceed the threshold.
- Social Security does not automatically withhold federal tax, so you may need to pay when you file your return or request voluntary withholding.
- State income tax on SSDI varies by state; some states tax SSDI and others do not.
How the IRS calculates the taxable portion
The calculation has two tiers. In the first tier, up to 85% of your benefits may be taxed if your combined income is high enough. In the second tier, a smaller percentage is taxed if your combined income is only slightly above the threshold.
Start by adding your SSDI benefits to all other income you received during the year. Subtract the threshold for your filing status. If the result is positive, that is your excess income. The IRS then applies a formula: the lesser of (1) 85% of your excess income, or (2) 85% of your total SSDI benefits. The result is the maximum amount of benefits that could be taxed.
For most people, the actual taxable amount is lower because of a second calculation that limits taxation to 50% of benefits in certain situations. The IRS Form 1040 instructions include a worksheet to calculate this, or a tax preparer can walk you through it. The exact amount depends on your specific income sources and filing status.
When you should request voluntary withholding
If you know you will owe federal tax on your SSDI, you can ask Social Security to withhold a flat amount from your monthly payment. This way you do not have to pay a large sum when you file your return.
To request withholding, fill out Form W-4V (Voluntary Withholding Request) and send it to your local Social Security office or mail it to the address on the form. You can choose to withhold 7%, 10%, 15%, or 25% of your monthly benefit. Once Social Security receives the form, withholding usually starts with your next payment.
You can change or stop withholding at any time by submitting a new Form W-4V. If you stop working or your income changes, you may want to adjust the withholding amount.
Other income that counts toward the threshold
Combined income includes more than just wages. It includes interest from savings accounts and bonds, dividends, capital gains, rental income, pension payments, and distributions from retirement accounts like IRAs or 401(k)s. It also includes any other Social Security benefits you receive — retirement benefits, spousal benefits, or survivor benefits.
Some income does not count. Supplemental Security Income (SSI) is not included in combined income. Neither are certain veterans' benefits, workers' compensation, or gifts. Tax-exempt interest (such as from municipal bonds) is included in the calculation even though it is not taxable income.
If you are married and file jointly, your spouse's income counts too, even if your spouse does not receive SSDI. This is why married couples filing jointly have a higher threshold ($32,000) than single filers ($25,000).
Reporting SSDI on your federal tax return
Social Security sends you a Form SSA-1099 each January showing the total SSDI benefits you received in the previous year. You use this form to report your benefits on your federal return.
If you file Form 1040 (the standard federal income tax form), you report your SSDI benefits on line 5b. The form includes a worksheet to calculate how much of your benefits are taxable. If none of your benefits are taxable, you still report the full amount received on line 5a, then enter zero on line 5b.
You must file a return if your combined income exceeds the threshold for your filing status, even if no tax is owed. Filing ensures you receive any refundable credits you may be due, such as the Earned Income Tax Credit.
State income tax on SSDI varies widely
Whether you owe state income tax on SSDI depends entirely on which state you live in. Some states do not tax SSDI at all. Others tax SSDI the same way the federal government does, using a combined income threshold. A few states have their own rules that differ from federal rules.
States that do not tax SSDI include California, Florida, Illinois, Louisiana, Mississippi, Missouri, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. If you live in any of these states, you owe no state income tax on your SSDI benefits, regardless of your other income.
If you live in a state that does tax SSDI, check your state's tax agency website or contact them directly to learn the threshold and how to calculate the taxable amount. Some states use the same federal threshold; others use a different one. A few states tax all SSDI benefits above a certain age.
What to do if you receive a tax bill
If you receive a notice from the IRS saying you owe tax on your SSDI, read it carefully to understand what year it covers and what the IRS says you owe. The notice will include instructions for paying or appealing.
If you believe the notice is wrong — for example, if your combined income was actually below the threshold — you can respond to the IRS with documentation of your income. Keep copies of your Form SSA-1099, W-2s, 1099s from banks or investments, and any other income records. If you filed a return and the IRS disagrees with your calculation, you can request a reconsideration.
If you cannot pay the full amount at once, the IRS offers payment plans. You can also contact the IRS to discuss your situation. Do not ignore a tax notice, as penalties and interest will accumulate.
Frequently Asked Questions
Do I have to file a federal tax return if I only receive SSDI?
Only if your combined income exceeds the threshold for your filing status ($25,000 for single, $32,000 for married filing jointly). If your only income is SSDI below that threshold, you do not have to file. However, filing may benefit you if you are due a refundable credit like the Earned Income Tax Credit.
What if I work part-time and receive SSDI?
Your wages count as income toward the combined income threshold. If your wages plus SSDI benefits exceed the threshold, a portion of your SSDI may be taxable. You will report both your wages (on a W-2 or Schedule C) and your SSDI benefits on your federal return.
Can I reduce my taxable SSDI by lowering my other income?
Not directly, but you can manage when you receive certain income. For example, if you are considering whether to withdraw from an IRA, timing the withdrawal in a year when other income is lower may reduce the amount of SSDI that is taxable. A tax preparer or financial advisor can help you plan this.
If I owe federal tax on SSDI, do I also owe state tax?
Not necessarily. It depends on your state. Thirteen states do not tax SSDI at all. Other states use the same federal threshold or have their own rules. Check your state's tax agency website to learn whether SSDI is taxable in your state.
What happens if I do not report my SSDI on my tax return?
The IRS receives a copy of your Form SSA-1099 from Social Security, so they know how much you received. If you do not report it and owe tax, the IRS will send you a notice. It is better to file and report your benefits, even if you believe none are taxable, to avoid penalties and interest.