How Disability Checks Are Taxed and What You Owe

Whether your disability check is taxed depends on your other income

Social Security Disability Insurance (SSDI) payments may or may not be taxed. The answer depends on your combined income—not just your SSDI check, but also wages, interest, dividends, and other money you receive. If your combined income stays below a certain threshold, you owe no federal tax on your SSDI. If it goes above that threshold, you may owe tax on part of your SSDI payment.

The threshold is the same for everyone: $25,000 if you file as single, or $32,000 if you file as married filing jointly. These numbers have not changed since 1984. If your combined income falls below your threshold, you file your tax return normally but report zero taxable SSDI income. If it exceeds your threshold, you use a worksheet to calculate how much of your SSDI becomes taxable—usually between 0% and 85% of your payment.

Most people receiving SSDI do not owe federal tax on their checks because their combined income stays low. But if you work part-time, receive a pension, have investment income, or are married and your spouse works, you may cross the threshold and owe tax on some or all of your SSDI.

Key Takeaways

SSDI is taxable only if your combined income (SSDI plus all other income) exceeds $25,000 for single filers or $32,000 for married filers.
Combined income includes wages, self-employment income, interest, dividends, rental income, and certain other sources—not just your SSDI check.
If you owe tax on SSDI, you typically owe tax on 50% to 85% of your payment, not the full amount.
You calculate taxable SSDI using IRS Worksheet 1 or 2, found in the instructions for Form 1040 or Form 1040-SR.
Social Security sends Form SSA-1099 in January showing your total SSDI for the prior year, which you use to file your tax return.

How combined income is calculated

Combined income is the number that determines whether any of your SSDI is taxable. It is calculated as your Adjusted Gross Income (AGI) plus nontaxable interest plus half of your SSDI payment. This is not the same as your total SSDI for the year.

For example: suppose you are single, received $12,000 in SSDI, earned $15,000 from part-time work, and had $500 in interest income. Your combined income would be $15,000 (wages) + $500 (interest) + $6,000 (half of SSDI) = $21,500. Since $21,500 is below the $25,000 threshold, none of your SSDI is taxable.

Now suppose you earned $20,000 instead of $15,000. Your combined income would be $20,000 + $500 + $6,000 = $26,500. Since $26,500 exceeds the $25,000 threshold by $1,500, part of your SSDI becomes taxable. You would use the IRS worksheet to calculate exactly how much.

The worksheet accounts for the amount you exceeded the threshold and your total SSDI for the year. The result is the portion of your SSDI that counts as taxable income on your federal return.

The two-tier tax formula

If your combined income exceeds the threshold, the IRS uses a two-tier system to determine how much SSDI is taxable. The first tier taxes up to 50% of your SSDI. The second tier taxes up to an additional 35%, for a maximum of 85% of your SSDI payment.

The first tier applies when your combined income exceeds the threshold by up to $9,000 (single) or $12,000 (married). In this range, up to 50% of the amount over the threshold becomes taxable SSDI, but not more than 50% of your total SSDI payment.

The second tier applies when your combined income exceeds the threshold by more than $9,000 (single) or $12,000 (married). In this range, you add 35% of the excess over the second threshold to the amount already taxable from the first tier. The total taxable SSDI cannot exceed 85% of your payment.

Because the formula is complex, the IRS provides worksheets in the instructions for Form 1040 and Form 1040-SR. You fill in your numbers and the worksheet calculates the taxable portion. Many tax software programs also calculate this automatically if you enter your SSDI and other income correctly.

State income tax on SSDI

Federal tax and state tax are separate. Some states do not tax SSDI at all, even if the federal government does. Other states follow the federal rule and tax SSDI only if your combined income exceeds the federal threshold. A few states have their own thresholds or rules.

Thirteen states currently tax SSDI under some circumstances: Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, Vermont, and West Virginia. The rules vary by state. Some tax SSDI only if your income exceeds a certain level. Others tax it only if you are above a certain age or have income above a higher threshold than the federal one.

Check your state's tax authority website or ask a tax preparer about your state's specific rules. Your state tax return may require you to report SSDI income even if your federal return does not, or vice versa.

When to file a tax return even if you owe nothing

You must file a federal tax return if your income exceeds the filing threshold for your age and filing status—even if none of your SSDI is taxable. The filing threshold is different from the SSDI taxation threshold. For 2024, the filing threshold for a single person under 65 is $14,600 in gross income. For someone 65 or older, it is $18,350.

Gross income includes wages, self-employment income, interest, dividends, and other sources, but does not include SSDI when calculating whether you must file. So if you earned $15,000 in wages and received $12,000 in SSDI, your gross income for filing purposes is $15,000, which exceeds the threshold and requires you to file.

Even if you do not owe tax, filing a return may be worth doing if you paid taxes through withholding or are due a refund. You can also claim the Earned Income Tax Credit (EITC) on your return if you worked and your income is low enough, which can result in a refund even if no tax is owed.

How to report SSDI on your tax return

In January, Social Security mails you Form SSA-1099, which shows the total SSDI you received in the prior year. Use this form to complete your tax return. You enter the amount from box 5 of the SSA-1099 on line 5b of Form 1040 or Form 1040-SR.

If you use tax software, you enter the SSA-1099 information when prompted, and the software calculates whether any SSDI is taxable and fills in the correct lines. If you prepare your return by hand or work with a tax preparer, they will use the SSA-1099 and the IRS worksheets to determine your taxable SSDI amount.

Keep your SSA-1099 with your tax records. If you file electronically, you do not mail the form, but keep it for your records in case the IRS asks questions later. If you file by mail, do not attach the SSA-1099 to your return unless the IRS instructions specifically tell you to.

What happens if you do not report SSDI correctly

If you underreport your SSDI income or fail to file a required return, the IRS may assess penalties and interest. The penalty for not filing is usually 5% of the unpaid tax for each month the return is late, up to 25%. The penalty for underpaying is 0.5% per month. Interest accrues daily on any unpaid tax.

If you made an honest mistake, you can file an amended return using Form 1040-X. The IRS generally has three years to assess additional tax, so filing an amended return within that window can resolve the issue without additional penalties if you can show reasonable cause for the error.

If you are unsure whether you filed correctly in prior years, consider consulting a tax preparer or contacting the IRS directly. The IRS has a payment plan option if you owe back taxes, and they may reduce or waive penalties if you have a good reason for the error.

Frequently Asked Questions

If I work part-time, will my wages make my SSDI taxable?

Possibly. Your wages count toward your combined income. If your wages plus half your SSDI plus any other income exceeds $25,000 (single) or $32,000 (married), some of your SSDI becomes taxable. Many people who work part-time and receive SSDI stay below the threshold, but it depends on how much you earn.

Does my spouse's income count toward the SSDI tax threshold?

Only if you file a joint return. If you file jointly, your combined income includes both your income and your spouse's income. If you file separately, only your income counts. Filing separately usually results in more SSDI being taxable, so most couples file jointly.

Can I reduce my taxable SSDI by making a charitable donation?

No. Charitable donations reduce your taxable income, but they do not reduce your combined income for SSDI tax purposes. The SSDI tax calculation uses a separate formula that does not account for deductions like charitable giving.

What if I received SSDI for only part of the year?

Your SSA-1099 will show only the SSDI you actually received. Use that amount on your tax return. The thresholds ($25,000 and $32,000) explore regardless of whether you received SSDI for the full year or only part of it.

Do I have to pay estimated tax if my SSDI might be taxable?

Generally, no. SSDI is not subject to withholding, so you do not make estimated tax payments on SSDI itself. However, if you have other income (wages, self-employment, interest) that is not being withheld, you may need to make estimated payments. Consult a tax preparer to determine if estimated payments explore to your situation.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.