Most people on SSDI do have to file taxes, but the amount you owe depends on your total income
Whether you file taxes on your Social Security Disability Insurance (SSDI) benefits depends on how much money you receive from all sources combined. The Social Security Administration does not automatically withhold taxes from your SSDI check, so you may owe taxes even if no money was taken out. The IRS uses a formula based on your "combined income" — which includes your SSDI, wages, interest, and other earnings — to determine whether any of your benefits are taxable.
If your combined income is below a certain threshold, you owe no federal income tax on your SSDI. If it is above that threshold, a portion of your benefits becomes taxable. The threshold varies depending on whether you file as single, married filing jointly, or married filing separately. Some states also tax SSDI benefits, though most do not.
Key Takeaways
- You must file federal taxes if your combined income (SSDI plus all other income) exceeds $25,000 for single filers or $32,000 for married couples filing jointly.
- Combined income includes your full SSDI amount plus half of your SSDI plus any wages, interest, dividends, or other earnings.
- The IRS uses a two-tier formula: if you are below the first threshold, no benefits are taxable; if you are above it, up to 50% or 85% of your benefits may be taxable depending on how far above the threshold you are.
- Social Security does not withhold taxes from SSDI payments, so you may need to pay estimated taxes quarterly or file a return to settle what you owe.
- Only a handful of states tax SSDI benefits, and most of those allow deductions that reduce or eliminate the state tax.
How the IRS calculates whether your SSDI is taxable
The IRS uses a specific calculation called combined income to determine if any of your SSDI is subject to federal tax. Combined income is not the same as your total income. It is calculated this way: take your adjusted gross income (wages, self-employment income, interest, dividends, and other earnings), add any tax-exempt interest you received, and then add half of your SSDI benefits. That total is your combined income.
Once you know your combined income, the IRS applies two thresholds. For single filers in 2024, the first threshold is $25,000 and the second is $34,000. For married couples filing jointly, the first threshold is $32,000 and the second is $44,000. If your combined income is at or below the first threshold, none of your SSDI is taxable. If it is above the first threshold but below the second, up to 50% of your benefits may be taxable. If it is above the second threshold, up to 85% of your benefits may be taxable.
These thresholds have not changed since 1984, even though the cost of living has risen significantly. This means more people with SSDI are affected by the tax each year.
What counts as income for the combined income calculation
Your combined income includes far more than just your SSDI check. Any wages you earn from work count. So do net earnings from self-employment, interest from bank accounts or bonds, dividends from stocks, capital gains, rental income, and pension payments. If you are married and file jointly, your spouse's income counts too, even if your spouse does not receive SSDI.
Tax-exempt interest — such as interest from municipal bonds — also counts toward combined income for the purpose of determining whether your SSDI is taxable, even though that interest itself is not taxable. This is one of the most commonly missed pieces of the calculation.
What does not count: Supplemental Security Income (SSI), workers' compensation, veterans' benefits, and certain other government payments are excluded from combined income. If you receive both SSDI and SSI, only the SSDI portion is subject to this tax rule.
The two-tier tax formula explained with examples
| Filing Status | First Threshold | Second Threshold | If Below First | If Between Thresholds | If Above Second |
|---|---|---|---|---|---|
| Single | $25,000 | $34,000 | No tax on SSDI | Up to 50% taxable | Up to 85% taxable |
| Married filing jointly | $32,000 | $44,000 | No tax on SSDI | Up to 50% taxable | Up to 85% taxable |
| Married filing separately | $0 | $0 | Up to 85% taxable (almost always) |
Here is a concrete example. Suppose you are single and receive $1,500 per month in SSDI ($18,000 per year). You also earn $10,000 from part-time work. Your combined income is calculated as: $10,000 (wages) + $0 (no other income) + $9,000 (half of your $18,000 SSDI) = $19,000. Since $19,000 is below the first threshold of $25,000, none of your SSDI is taxable. You would owe tax only on the $10,000 in wages.
Now suppose the same person earns $20,000 instead. Combined income is: $20,000 + $9,000 = $29,000. This is above the first threshold ($25,000) but below the second ($34,000). The amount above the first threshold is $4,000. You would owe tax on the lesser of: (a) 50% of your SSDI ($9,000), or (b) 50% of the amount above the first threshold ($2,000). So $2,000 of your SSDI becomes taxable, plus the $20,000 in wages.
Whether you need to file a tax return
Social Security does not withhold federal income tax from SSDI payments. This means even if you owe no tax, you may still need to file a return to claim refundable tax credits — such as the Earned Income Tax Credit (EITC) if you work — or to report your income to the IRS.
You must file a federal tax return if your gross income exceeds the standard deduction for your filing status. For 2024, the standard deduction is $14,600 for single filers and $29,200 for married couples filing jointly. Your gross income includes your full SSDI amount plus all wages and other earnings, but does not include the portion of SSDI that is not taxable.
Even if your income is below the standard deduction, filing a return may benefit you. If you earned any wages, you may be may have access to to the EITC, which can result in a refund even if you owe no tax. The EITC is one of the largest tax credits available and is often worth hundreds or thousands of dollars.
State taxes on SSDI benefits
Most states do not tax SSDI benefits at all. However, a small number do: Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, and Vermont currently tax some or all SSDI income. The rules vary by state, and most of these states offer deductions or exemptions that reduce or eliminate the tax for people with SSDI.
If you live in one of these states, you will receive a state tax form or notice from Social Security explaining how the state treats your benefits. Some states allow you to deduct your entire SSDI benefit from taxable income, which means you owe no state tax even though the state technically taxes SSDI. Others have income thresholds similar to the federal formula. Contact your state tax authority or a tax professional in your state to understand your specific situation.
What to do if you cannot pay the taxes you owe
If you file a tax return and discover you owe money but cannot pay it all at once, you have options. You can request a payment plan from the IRS, which allows you to pay in installments over time. You can also request an offer in compromise, which is a settlement for less than the full amount owed, though this is harder to obtain and requires showing genuine financial hardship.
Do not ignore a tax bill. If you do not respond to IRS notices, the agency can place a levy on your bank account or garnish other income. SSDI benefits themselves cannot be garnished for federal taxes, but other income can be. Filing a return on time, even if you cannot pay when ready, protects you and gives you access to payment options.
Frequently Asked Questions
Do I have to file taxes if I only receive SSDI and no other income?
No. If SSDI is your only income and you are single, you do not have to file a federal return because your income is below the standard deduction. However, if you earned any wages during the year, you should file to claim the Earned Income Tax Credit, which may result in a refund.
What if I work part-time while receiving SSDI?
Your wages count toward your combined income, which may make some of your SSDI taxable. You must report all wages on your tax return. You may also be subject to SSDI work incentives that allow you to earn money without losing your benefits, but those earnings still count for tax purposes.
Can I have taxes withheld from my SSDI check?
Yes. You can request that Social Security withhold federal income tax from your SSDI payment by completing Form W-4V and submitting it to your local Social Security office. You can choose to have 7%, 10%, 15%, or 25% withheld. This does not change whether your benefits are taxable — it just spreads the payment across the year instead of requiring you to pay a lump sum at tax time.
What if I disagree with how much of my SSDI the IRS says is taxable?
Double-check your combined income calculation using the formula described above. If you believe the IRS made an error, you can file an amended return (Form 1040-X) with corrected information. If the disagreement is about whether certain income should count, you may need to consult a tax professional or contact the IRS directly.
Do I owe taxes on back pay from SSDI?
Yes. If you receive a lump-sum payment of back benefits from Social Security — for example, if your claim was approved months after you applied — that entire amount counts as income in the year you receive it. This can push your combined income above the thresholds and make a large portion of your benefits taxable that year. Some people in this situation benefit from spreading the income over multiple years using special tax rules, so consult a tax professional if you receive a large back-pay settlement.