Most people on SSDI do not owe federal income tax on their benefits
Whether you owe taxes on your SSDI payments depends on your total income for the year, not on the SSDI itself. If SSDI is your only income, you almost certainly will not owe federal income tax. The problem arises only when you have other income — from work, pensions, interest, or other sources — that pushes your total above a certain threshold.
The threshold is low. For 2024, if you are single and your combined income (a specific calculation that includes half your SSDI) exceeds $25,000, you may owe tax on part of your benefits. For married couples filing jointly, the threshold is $32,000. These numbers have not changed since 1984, so they catch far more people than they did when they were set.
The tax is not on all your SSDI. It is on a portion of it — up to 50 percent of your benefits, or in some cases up to 85 percent. The exact amount depends on how much your other income is and which state you live in, because some states also tax SSDI.
Key Takeaways
- You owe federal tax on SSDI only if your combined income (including half your SSDI) exceeds $25,000 as a single filer or $32,000 if married filing jointly.
- The tax applies to a portion of your benefits, not all of them, and the portion depends on how much other income you have.
- Some states tax SSDI even when the federal government does not, so you may owe state tax on benefits you do not owe federal tax on.
- Social Security will not withhold taxes automatically — you must either pay quarterly estimated taxes or request withholding from your monthly payment.
- If you work while on SSDI, your earnings may also trigger the Substantial Gainful Activity rule, which is separate from the tax question.
How Social Security calculates whether you owe tax
Social Security uses a formula called "combined income" to determine whether any of your benefits are taxable. Combined income is not the same as your total income. It is calculated as: your adjusted gross income, plus nontaxable interest, plus half of your SSDI benefits.
Suppose you are single and receive $1,500 per month in SSDI ($18,000 per year) and earn $10,000 from part-time work. Your combined income would be $10,000 + $0 (no nontaxable interest) + $9,000 (half of $18,000) = $19,000. Since $19,000 is below the $25,000 threshold, you would owe no federal tax on your SSDI.
Now suppose you receive a pension of $8,000 per year in addition to the same SSDI and work income. Your combined income would be $10,000 + $8,000 + $9,000 = $27,000. Since $27,000 exceeds the $25,000 threshold, some of your SSDI becomes taxable. The amount taxable is the lesser of: (1) 50 percent of your SSDI, or (2) 50 percent of the amount by which your combined income exceeds the threshold. In this case, that is 50 percent of $2,000 = $1,000. So $1,000 of your $18,000 SSDI would be subject to federal income tax.
If your combined income is very high, a second calculation applies, and up to 85 percent of your benefits can become taxable. This second tier kicks in at $34,000 for single filers and $44,000 for married couples filing jointly.
State taxes on SSDI vary widely
Thirteen states tax SSDI benefits under at least some circumstances: Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, Vermont, and West Virginia. The rules differ in each state — some tax SSDI the same way the federal government does, others use different thresholds, and some exempt SSDI entirely for residents above or below a certain age or income level.
If you live in one of these states, you may owe state tax on your SSDI even if you owe no federal tax. You may also owe no state tax while owing federal tax, depending on your state's rules. The only way to know is to check your state's tax authority website or speak with a tax preparer familiar with your state's rules.
If you live in a state that does tax SSDI and you expect to owe state tax, you can request that Social Security withhold state income tax from your monthly payment, just as you can with federal tax.
How to handle tax withholding on your SSDI
Social Security does not automatically withhold income tax from your SSDI payments. If you know you will owe tax, you have two options: request withholding from your monthly payment, or pay estimated taxes quarterly to the IRS.
To request withholding, fill out Form W-4V (Voluntary Withholding Request) and send it to your local Social Security office or mail it to Social Security. You can specify a flat dollar amount or a percentage of your monthly benefit. Social Security will then withhold that amount each month and send it to the IRS or your state tax authority.
If you prefer to pay estimated taxes instead, you file Form 1040-ES with the IRS four times per year (quarterly). This route is more work but gives you more control over the amount and timing of payments. Many people use this method if they have other income sources and want to coordinate all their tax payments in one place.
If you do not withhold and do not pay estimated taxes, you may owe a penalty when you file your annual return, even if you ultimately owe little or no tax. The penalty is calculated on the underpayment, so withholding or paying estimated taxes protects you.
What happens when you file your annual tax return
When you file your federal income tax return, you will report your SSDI on Form 1040 or Form 1040-SR (for people 65 and older). Social Security sends you a Form SSA-1099 each January showing the total SSDI you received in the prior year. You use this form to fill in the SSDI line on your return.
Your tax preparer or tax software will calculate whether any of your SSDI is taxable using the combined income formula. If you withheld taxes during the year, those withholdings will be credited against your total tax bill. If you overpaid, you will receive a refund. If you underpaid, you will owe the difference.
If you live in a state that taxes SSDI, you will also file a state return and report your SSDI there. Some states use the same combined income calculation as the federal government; others do not. Your state return may result in a separate refund or bill.
SSDI and work income are taxed separately
If you work while receiving SSDI, your earnings are subject to income tax just like anyone else's. But work income also affects your SSDI in a different way: through the Substantial Gainful Activity (SGA) rule. SGA is not a tax rule — it is a Social Security rule that can end your SSDI if your earnings are too high.
For 2024, SGA is $1,550 per month (or $2,590 if you are blind). If you earn more than this amount in a month, Social Security may consider you no longer disabled and stop your benefits. This is separate from the tax question. You could owe no tax on your SSDI and still lose your benefits due to SGA, or you could owe tax and keep your benefits because your earnings are below SGA.
If you are working and receiving SSDI, report your earnings to Social Security right away. Do not wait until tax time. Social Security has programs like the Trial Work Period that let you test your ability to work without when ready losing benefits, but only if you report your work.
Frequently Asked Questions
Do I have to file a tax return if SSDI is my only income?
No. If SSDI is your only income and you have no other income sources, you do not have to file a federal income tax return. The standard deduction for 2024 is $14,600 for single filers and $29,200 for married couples filing jointly, and SSDI does not count toward this threshold. However, if you have any other income — even a small amount from work or interest — you may need to file.
What if I did not withhold taxes and now owe money?
You can still pay what you owe when you file your return. If you owe a large amount, the IRS may charge interest and penalties, but you can also set up a payment plan. Going forward, request withholding on Form W-4V to avoid this problem next year.
Can I change how much tax Social Security withholds from my payment?
Yes. You can submit a new Form W-4V at any time to increase, decrease, or stop withholding. Changes usually take effect within one or two months. Contact your local Social Security office or call 1-800-772-1213 to request the form.
If I live in a state that taxes SSDI, do I owe both federal and state tax?
Not necessarily. You might owe federal tax but not state tax, or state tax but not federal tax, depending on your income and your state's rules. Some states have higher thresholds than the federal government, or they exempt SSDI for certain age groups. Check your state's tax authority website or ask a tax preparer.
Does the SSDI I receive count toward my Medicare premiums?
No. Your SSDI payment does not affect your Medicare Part B or Part D premiums. However, your other income does. If your modified adjusted gross income exceeds certain thresholds, your Medicare premiums increase. This is a separate calculation from the tax calculation and uses different income thresholds.