You may have to report SSDI on your taxes, but most people receiving only SSDI do not

Whether you file a tax return depends on how much income you have and what kind of income it is. Social Security Disability Insurance (SSDI) benefits themselves are not taxable income — the IRS does not count them as wages or earnings. However, if you have other income (wages from work, interest, dividends, or other benefits), you may be required to file, and in some cases part of your SSDI becomes taxable.

The rule is this: you only owe tax on SSDI if you have "combined income" above a certain threshold. Combined income includes your SSDI plus half of your SSDI plus any other income you received. For most people on SSDI alone, this threshold is never crossed, so no tax is owed and no return is required. But if you work part-time, receive a pension, or have investment income, you need to do the math.

Key Takeaways

  • SSDI benefits themselves are never taxable, but other income you receive can push part of your SSDI into taxable territory.
  • You must file a tax return only if your combined income (SSDI plus half your SSDI plus other income) exceeds the threshold for your filing status.
  • If you work and earn wages while on SSDI, you almost certainly need to file a return, even if you owe no tax.
  • The IRS sends a form SSA-1099 each January showing your SSDI for the prior year; use this to calculate whether you must file.
  • Filing a return when you owe no tax can sometimes result in a refund, so it may be worth doing even when not required.

How the IRS calculates whether SSDI becomes taxable

The IRS uses a formula called combined income to decide if any of your SSDI is taxable. The formula is: your adjusted gross income (AGI) plus nontaxable interest plus half of your SSDI. If that total is below a threshold, none of your SSDI is taxable. If it is above the threshold, up to 50 percent or 85 percent of your SSDI may be taxable, depending on how far above the threshold you are.

The thresholds are $25,000 for a single filer and $32,000 for married filing jointly. These thresholds have not changed since 1984 and do not adjust for inflation. If your combined income is $25,001 and you file single, some of your SSDI is taxable. If it is $25,000 or less, none is.

Example: You receive $18,000 in SSDI and earn $8,000 from part-time work. Your combined income is $8,000 (wages) plus $0 (nontaxable interest) plus $9,000 (half of SSDI) = $17,000. Since $17,000 is below $25,000, none of your SSDI is taxable. You owe no federal income tax, but you may still need to file if your wages alone exceed the filing threshold for your age.

When you must file even if you owe no tax

You are required to file a return if your gross income exceeds the standard deduction for your age and filing status. The standard deduction changes each year. For 2024, the standard deduction is $14,600 for a single person under 65 and $18,450 for a single person 65 or older. If you are married filing jointly, it is $29,200 (both under 65) or higher if either spouse is 65 or older.

SSDI does not count toward this threshold, but wages do. So if you earned $15,000 in wages and received $20,000 in SSDI, your gross income is $15,000 (SSDI is not counted), which exceeds the standard deduction of $14,600. You must file a return.

Even if you do not owe tax, filing can be worth your time. If you had taxes withheld from wages or made estimated tax payments, filing gets you a refund. Additionally, some people on SSDI are may have access to to the Earned Income Tax Credit (EITC) if they have work income, and you can only claim it by filing.

What documents you need to file

The Social Security Administration sends you a form SSA-1099 each January showing the total SSDI you received in the prior year. This is your proof of SSDI income for tax purposes. You will also receive a form W-2 from any employer if you worked, or a form 1099 (various types) if you had other income like interest or self-employment earnings.

Gather these forms before you file. The SSA-1099 shows your SSDI in box 5. Do not report this amount as income on your return — instead, use it to calculate your combined income and determine whether any SSDI is taxable. If you are filing by mail, attach a copy of your SSA-1099 to your return. If you are filing electronically, you do not need to attach it, but keep it for your records.

If you did not receive an SSA-1099 by early February, contact the Social Security Administration at 1-800-772-1213 or visit your local Social Security office. You can also create a my Social Security account online and view your SSA-1099 there.

Reporting SSDI on your return if it is taxable

If your combined income exceeds the threshold and part of your SSDI is taxable, you report it on form 1040, line 5b (or the equivalent line on your state return). The taxable portion is calculated using a worksheet in the IRS instructions for form 1040, or you can use tax software that does the calculation for you.

The calculation is complex and depends on whether your combined income is between the first threshold ($25,000 or $32,000) or above the second threshold ($34,000 or $44,000). Most people benefit from using tax software or consulting a tax preparer if their SSDI is taxable. The IRS Publication 915 walks through the worksheet step-by-step if you prefer to do it by hand.

You do not owe any tax on SSDI until your combined income exceeds the first threshold. Even then, the amount of SSDI that becomes taxable is limited — it cannot exceed 50 percent of your SSDI unless your combined income is very high.

State income tax and SSDI

Most states do not tax SSDI, but a few do. Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, and Vermont tax SSDI under certain conditions, usually only if your combined income is above a state-specific threshold. Some of these states tax SSDI the same way the federal government does; others have different rules.

If you live in one of these states, check your state tax agency's website or contact them directly to learn whether you owe state tax on SSDI. Many states offer exemptions or deductions for SSDI recipients, so even if the state technically taxes SSDI, you may not owe anything. State tax rules change, so verify the current rules for your state before filing.

What happens if you do not file when required

If you are required to file and do not, the IRS may assess a failure-to-file penalty. The penalty is usually 5 percent of the unpaid tax for each month the return is late, up to 25 percent. If you owe no tax, the penalty is zero, but the IRS may still send you a notice asking why you did not file.

If you owe a refund and do not file, you straightforward do not receive it. The IRS will not send you money without a return. Refunds can be claimed for up to three years after the return due date, so if you missed a year, you can still file a late return and claim the refund.

If you are unsure whether you must file, file anyway. Filing when not required costs nothing and protects you from penalties. If you owe no tax, there is no downside.

Frequently Asked Questions

Do I have to report SSDI on my taxes if I live on it alone?

No. If SSDI is your only income, your combined income is below the threshold, and you owe no tax and do not need to file. You can receive SSDI indefinitely without filing a return, as long as you have no other income.

What if I work part-time while on SSDI — do I have to file?

Yes, almost certainly. Your wages count toward the standard deduction threshold, so if you earned more than the standard deduction for your age, you must file. Additionally, your wages may trigger the combined income calculation, making part of your SSDI taxable.

Can I file electronically if I receive SSDI?

Yes. You can file electronically using tax software, a tax preparer, or the IRS Free File program if your income is below the income limit. You do not need to mail a paper return or attach your SSA-1099 when filing electronically.

What if I owe back taxes from a prior year — does SSDI count toward paying them?

SSDI cannot be garnished to pay federal income tax debt. However, if you owe other federal debts (student loans, child support, or non-tax debts), the Treasury Offset Program may intercept part of your SSDI. Contact the IRS or the agency holding the debt to learn your options.

Where do I report the taxable portion of SSDI on my return?

Report it on form 1040, line 5b, labeled "Taxable social security benefits." Use the worksheet in the form 1040 instructions or tax software to calculate the taxable amount. If you are filing a state return, check your state's form to see where to report it.