Whether you must file taxes on SSDI depends on your total income, not just your disability benefits
Social Security Disability Insurance (SSDI) itself is not taxable income. The federal government does not tax your monthly SSDI payment. However, you may still be required to file a tax return if your total income—from all sources combined—exceeds the threshold the IRS sets for your filing status and age.
The key is that SSDI counts toward your "combined income" when the IRS decides whether you owe taxes. Combined income includes your SSDI benefits plus half of those benefits, plus any other income you have: wages, self-employment earnings, interest, dividends, pensions, or distributions from retirement accounts. If that combined total crosses the filing threshold, you must file, even though the SSDI portion itself will not be taxed.
Many people on SSDI have no other income and therefore do not file. Others work part-time or have investment income, and for them the calculation matters. The threshold varies by age and filing status, and it changes each year.
Key Takeaways
- SSDI benefits themselves are never taxed by the federal government, but they count toward your combined income when deciding whether you must file a return.
- You must file if your combined income (SSDI plus half of SSDI, plus all other income) exceeds the IRS threshold for your age and filing status.
- The filing threshold is higher for people age 65 and older, and it increases each year with inflation.
- Even if you do not owe tax, filing may let you claim the Earned Income Tax Credit (EITC) or other refundable credits that put money back in your pocket.
- State income tax rules vary; some states tax SSDI and some do not, regardless of federal law.
How the IRS calculates combined income for SSDI recipients
The IRS uses a specific formula to determine your "combined income" for tax-filing purposes. It is: your adjusted gross income (AGI) plus nontaxable interest plus half of your SSDI benefits.
Here is a concrete example. Suppose you receive $1,500 per month in SSDI ($18,000 per year) and earn $8,000 from part-time work. Your combined income is $8,000 (wages) plus $9,000 (half of $18,000 SSDI) = $17,000. That $17,000 is what the IRS compares to the filing threshold. The $18,000 SSDI itself is never taxed, but it still counts in the formula.
If you also have interest income, capital gains, or distributions from a traditional IRA, those get added to the combined income total as well. The point is that the IRS wants to know your full economic picture before deciding whether you must file.
Filing thresholds for 2024 and how they change
For 2024, the IRS filing thresholds are:
| Filing Status | Under Age 65 | Age 65 or Older |
|---|---|---|
| Single | $14,600 | $18,350 |
| Married Filing Jointly (both under 65) | $29,200 | — |
| Married Filing Jointly (one spouse 65+) | $30,750 | |
| Married Filing Jointly (both 65+) | $32,300 | |
| Head of Household | $18,475 | $22,225 |
These thresholds increase each year. The IRS adjusts them for inflation, so the 2025 thresholds will be higher than 2024. You can find the current year's thresholds on the IRS website or by calling 1-800-829-1040.
If your combined income is below the threshold for your status and age, you are not required to file. If it is at or above the threshold, you must file a federal return, even if you owe no tax.
When filing is worth doing even if you do not have to
Even if your combined income falls below the filing threshold, you may want to file anyway. The main reason is the Earned Income Tax Credit (EITC), a refundable credit that can put money in your pocket.
The EITC is designed for people with low to moderate earned income. If you work and earn wages or self-employment income, you may may have access to. The credit is "refundable," which means if the credit is larger than the tax you owe, the IRS sends you the difference as a refund. You cannot claim the EITC unless you file a return.
For example, suppose you earn $6,000 from part-time work and receive $12,000 in SSDI. Your combined income is $12,000 (half of SSDI) plus $6,000 (wages) = $18,000, which is above the single filer threshold of $14,600. You must file. But even if it were below the threshold, filing would let you claim the EITC on your $6,000 in earnings, which could result in a refund of $500 to $1,000 or more, depending on your exact situation.
Other reasons to file even if not required: you had taxes withheld from wages or a pension and want a refund, or you want to claim the Child Tax Credit or other credits for dependents.
State income tax and SSDI
Federal tax law does not tax SSDI, but state law varies. Some states do not tax SSDI at all. Others tax it under certain conditions, and a few tax it the same way they tax other income.
States that do not tax SSDI include California, Florida, Illinois, Louisiana, Mississippi, New York, Ohio, Pennsylvania, and Texas. However, this list changes, and some states have income tax only on certain types of income (like interest or dividends) but not wages or SSDI.
If you live in a state with an income tax, check your state's tax authority website or call their helpline to learn whether SSDI is taxable in your state. Some states use the same combined-income formula as the IRS; others have their own rules. You may be required to file a state return even if you do not file federally, or vice versa.
How to report SSDI on your tax return
If you must file, SSDI appears on your federal return on Form 1040, the main individual income tax form. You report the total SSDI you received in the tax year on line 5b, labeled "Social security benefits." You also report half of that amount on line 5a.
The IRS sends you a Form SSA-1099 each January showing the total SSDI you received in the prior year. Use this form to fill in the amounts on your 1040. If you did not receive an SSA-1099, contact the Social Security Administration at 1-800-772-1213 to request one.
You do not itemize SSDI as a separate line item that gets taxed. Instead, the IRS uses the combined-income formula described above to determine whether any of your benefits are taxable. For most SSDI recipients, none of the benefits are taxable, and the SSDI line on the return straightforward shows what you received.
What happens if you do not file when you should
If your combined income exceeds the filing threshold and you do not file, the IRS may not pursue you when ready, especially if you owe little or no tax. However, there are consequences to consider.
First, you lose the chance to claim refundable credits like the EITC. If you are may have access to to a refund, the IRS will not send it unless you file. Second, if you are supposed to file and do not, you may face penalties and interest if the IRS later audits you and discovers the omission. Third, some government programs and lenders ask whether you filed taxes in recent years; not filing can affect your record.
If you are unsure whether you must file, the safest approach is to file anyway. Filing when you are not required to file carries no penalty. Filing when you should have filed but did not can result in penalties.
Frequently Asked Questions
Can SSDI benefits be taxed if I have a lot of other income?
Yes. If your combined income is high enough, up to 85 percent of your SSDI benefits can be subject to federal income tax. This is rare for SSDI recipients but possible if you have substantial wages, pensions, or investment income. The IRS uses a two-tier formula to calculate the taxable portion.
Do I have to file taxes if I only receive SSDI and no other income?
No. If SSDI is your only income, your combined income is half your SSDI amount. For most people, that falls below the filing threshold, so you do not have to file. However, filing anyway to claim the EITC or other credits may still benefit you if you have any earned income at all.
What if I work while on SSDI—does that change my tax filing requirement?
Yes. Work income counts toward your combined income and raises the total the IRS compares to the filing threshold. You are more likely to be required to file if you work. Additionally, you may may have access to for the EITC based on your earnings, which gives you another reason to file.
Does filing taxes affect my SSDI benefits or Medicare?
Filing a tax return does not change your SSDI payment amount or your Medicare coverage. The IRS and Social Security are separate agencies. However, if you work and earn above the SSDI work incentive limits, Social Security may reduce your benefits—but that is based on your earnings, not on whether you file taxes.
Where can I get help filing if I receive SSDI?
The IRS offers free tax preparation through VITA (Volunteer Income Tax information) sites, which serve people with low to moderate income. You can find a VITA site near you at irs.gov or by calling 211. Many community centers and libraries also offer free tax help during filing season.