The Basic Rule: It Depends on Your Total Income
You may have to file a federal income tax return even though you receive Social Security Disability Insurance (SSDI), because SSDI counts as income for tax purposes. Whether you actually file depends on how much money you earned that year from all sources combined — not just SSDI.
The Social Security Administration does not withhold federal income taxes from SSDI payments automatically. This means you could owe taxes at the end of the year even if no taxes were taken out of your checks. The threshold for filing is lower if SSDI is your only income source than if you also have wages, self-employment income, or other earnings.
The IRS uses a formula that includes your SSDI, any wages you earned, and other income to determine whether you must file. This formula is different from the standard filing threshold most workers use, so you cannot straightforward compare your SSDI amount to the regular income limit.
Key Takeaways
- You must file a tax return if your combined income from SSDI plus other sources exceeds the threshold set by the IRS, which varies based on your filing status and sources of income.
- The IRS uses a special formula for SSDI recipients that counts half of your SSDI benefits as income, so your filing threshold is lower than for workers without disability benefits.
- Even if you do not owe taxes, filing a return may get you a refund if you had taxes withheld from wages or other income during the year.
- You can request that the Social Security Administration withhold federal income taxes from your SSDI payments to avoid a large bill at tax time.
- Form SSA-1099 arrives in January and shows your total SSDI for the year; keep it with your tax records even if you do not file.
How the IRS Counts SSDI as Income
The IRS does not count all of your SSDI as taxable income. Instead, it uses a two-step formula. First, the IRS adds half of your SSDI benefits to your other income (wages, interest, self-employment earnings, and so on). Then it compares that combined amount to a base amount that depends on your filing status.
If your combined income is above the base amount, a portion of your SSDI becomes taxable. The exact portion depends on how far above the base you are. This means you could have a substantial SSDI payment and still owe no federal income tax if your other income is low or zero.
For example, if you are single with no other income, your base amount is $25,000. If you receive $20,000 in SSDI that year, half of that ($10,000) plus your other income ($0) equals $10,000 — which is below $25,000, so you owe no federal income tax. But if you earned $18,000 in wages plus $20,000 in SSDI, half the SSDI ($10,000) plus wages ($18,000) equals $28,000, which exceeds $25,000, and some of your SSDI becomes taxable.
Filing Status and Income Thresholds
Your filing status — single, married filing jointly, married filing separately, or head of household — changes your base amount and therefore whether you must file. The base amounts are set by the IRS and do not change year to year, though Congress can adjust them.
| Filing Status | Base Amount |
|---|---|
| Single | $25,000 |
| Married filing jointly | $32,000 |
| Married filing separately | $0 |
| Head of household | $25,000 |
If you are married filing separately, the base amount is zero, which means any SSDI you receive may be taxable. This is why married couples on SSDI almost always file jointly rather than separately.
When You Earn Wages Alongside SSDI
If you work and receive SSDI at the same time, you must count both your wages and your SSDI when determining whether to file. Wages are always fully taxable income, so they count dollar-for-dollar in the IRS formula. This means even modest wages can push you over the filing threshold.
You may also be subject to SSDI work incentives that affect your benefits. Some work incentives allow you to earn money without losing benefits, but they do not change your tax filing obligation. You still must report all wages to the IRS, regardless of whether they reduced your SSDI payment.
If you had federal income taxes withheld from your paychecks, you should file a return even if you are not required to, because you may receive a refund. The IRS will not refund money you paid in unless you file.
Form SSA-1099 and Your Tax Records
In January, the Social Security Administration sends you Form SSA-1099, which shows the total SSDI you received in the previous year. This form is your proof of SSDI income for tax purposes. You will need it to complete your tax return or to show the IRS if you are audited.
Keep Form SSA-1099 with your tax records for at least three years, even if you do not file a return. The IRS can audit returns for up to three years after you file, and longer if there is reason to suspect unreported income. If you lose the form, you can request a replacement from Social Security by calling 1-800-772-1213 or visiting your local Social Security office.
Do not file your tax return until you receive Form SSA-1099. If you file before it arrives and your income information is incomplete, the IRS may send you a notice asking for the missing details.
Requesting Tax Withholding on SSDI Payments
If you know you will owe federal income taxes, you can ask Social Security to withhold a percentage of your SSDI payment each month. This works the same way as tax withholding from wages — money is taken out before you receive your check, and it goes to the IRS.
To request withholding, complete Form W-4V (Voluntary Withholding Request) and submit it to your local Social Security office or mail it to Social Security. You can choose to have 7, 10, 15, or 25 percent of your payment withheld. You can change or stop withholding at any time by submitting a new Form W-4V.
Withholding does not reduce your SSDI benefit amount — it only reduces the check you receive. Your official benefit record and any calculations based on your benefit (such as Medicaid or housing information) are not affected.
What Happens If You Do Not File When Required
If you are required to file and do not, the IRS may send you a notice. The notice will ask you to file a return or explain why you do not owe taxes. If you ignore the notice, the IRS can assess a penalty and interest on any taxes owed.
Filing late is better than not filing at all. If you owe taxes, filing late still results in penalties and interest, but filing shows good faith and may reduce the penalty amount. If you are owed a refund, there is no penalty for filing late, but you cannot claim a refund more than three years after the original filing important date.
If you are unsure whether you must file, you can contact the IRS at 1-800-829-1040 or visit IRS.gov. You can also work with a tax preparer or a free tax preparation service in your area.
Frequently Asked Questions
Do I have to file taxes if SSDI is my only income?
Not necessarily. If SSDI is your only income and it is below your base amount (usually $25,000 for single filers), you do not have to file. However, if you had any federal taxes withheld from other income during the year, filing may get you a refund.
What if I earned money from work but it was less than the filing threshold?
You should still file. Wages are fully taxable, and even small amounts can push you over the SSDI filing threshold when combined with half your SSDI. Additionally, if taxes were withheld from your paychecks, you may be owed a refund.
Can I file my taxes myself, or do I need a tax preparer?
You can file yourself using tax software or by hand, or you can use a tax preparer. Many communities offer free tax preparation through the IRS Volunteer Income Tax information (VITA) program, which serves people with low to moderate income. Call 211 or visit IRS.gov to find a VITA site near you.
What if I owe taxes but cannot pay them all at once?
The IRS offers payment plans. You can request an installment agreement by filing your return and then contacting the IRS to set up a payment schedule. You will owe interest and penalties on the unpaid balance, but a payment plan prevents additional penalties for non-payment.
Does filing taxes affect my SSDI benefits or Medicaid?
Filing a tax return does not change your SSDI benefit amount. However, if you report income on your tax return that you did not report to Social Security, it could affect your benefits if you are in a work incentive program. Report all income to both the IRS and Social Security to avoid overpayments.