Whether You Pay Tax on Disability Payments Depends on Your Total Income

You may owe federal income tax on your Social Security Disability Insurance (SSDI) payments if your combined income exceeds a certain threshold. The threshold is low—between $25,000 and $34,000 for single filers, depending on other income sources—which means many people receiving SSDI do end up owing tax on part of their benefits. Supplemental Security Income (SSI) is never taxable, but SSDI is treated as income for tax purposes.

The amount of your SSDI that becomes taxable is not a flat percentage. Instead, the IRS uses a formula that looks at your "combined income"—which includes wages, interest, dividends, and half of your SSDI benefit—and calculates how much of your benefit crosses into taxable territory. If you are married and file jointly, the thresholds are higher, but the calculation is the same.

The reason SSDI is taxable while SSI is not comes down to how the programs are funded. SSDI is funded by payroll taxes you paid while working, so the IRS treats it partly as a return of your own contributions and partly as taxable income. SSI is a needs-based program funded from general revenue, so it carries no tax obligation.

Key Takeaways

  • SSDI becomes taxable if your combined income (wages, interest, half your SSDI benefit) exceeds $25,000 as a single filer or $32,000 if married filing jointly.
  • SSI payments are never taxable, regardless of how much other income you have.
  • You calculate how much SSDI is taxable using a two-tier formula: up to 50 percent of your benefit may be taxable at the first tier, and up to 85 percent at the second tier.
  • The Social Security Administration sends Form SSA-1099 each January showing your SSDI payments for the prior year, which you use to file your tax return.
  • If you owe tax on SSDI, you can request that Social Security withhold federal income tax from your monthly payment to avoid a large bill at tax time.

How the IRS Calculates Taxable SSDI

The calculation has two steps, and the IRS applies them in order. First, the IRS adds up your combined income: all wages, self-employment income, interest, dividends, and half of your SSDI benefit. If that total exceeds $25,000 (single) or $32,000 (married filing jointly), you move to the second step.

In step one, the IRS taxes up to 50 percent of your SSDI benefit. The amount taxed is the lesser of (a) half your SSDI benefit, or (b) half the amount by which your combined income exceeds the threshold. If your combined income is $27,000 and the threshold is $25,000, the excess is $2,000. Half of that is $1,000. If your SSDI benefit is $1,500 per month ($18,000 per year), half is $9,000. The IRS taxes the lesser amount: $1,000.

If your combined income is much higher, you move to step two. Up to 85 percent of your SSDI benefit may be taxable. This applies when your combined income exceeds $34,000 (single) or $44,000 (married filing jointly). The formula at this tier is more complex, but the result is that higher-income beneficiaries can have up to 85 percent of their SSDI counted as taxable income.

The easiest way to see whether you owe tax is to use the IRS worksheet in Publication 915, which walks through both tiers. You can also use tax software that handles SSDI, or ask a tax preparer to run the numbers.

What Form You Receive and When

In January of each year, Social Security mails Form SSA-1099 to every beneficiary who received SSDI during the prior calendar year. This form shows your total SSDI benefit for that year in Box 5. You use this amount to calculate your combined income and determine whether any of your benefit is taxable.

If you did not receive a Form SSA-1099 by early February, you can request one by calling Social Security at 1-800-772-1213 or by visiting your local Social Security office. You can also create a my Social Security account online and view your SSA-1099 there before the paper copy arrives.

Keep your Form SSA-1099 with your tax records. If you file a return, you do not send the form to the IRS, but you must have it available in case of an audit. The IRS receives a copy directly from Social Security.

Filing Your Tax Return When You Receive SSDI

You must file a federal income 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. However, when calculating whether you must file, you count only the taxable portion of your SSDI, not the full benefit amount.

If you have other income—wages from part-time work, interest from a savings account, or rental income—add that to the taxable portion of your SSDI. If the total exceeds the standard deduction, you must file. Even if you do not owe tax, filing may be worth doing if you are due a refund from withheld wages or if you may have access to for the Earned Income Tax Credit.

Report your SSDI on line 5b of Form 1040 (the main federal income tax form). The IRS worksheet in Publication 915 will tell you exactly how much to report. If you use tax software, it will ask for your Form SSA-1099 information and calculate the taxable amount automatically.

Requesting Tax Withholding From Your SSDI Payment

If you know you will owe tax on your SSDI, you can ask Social Security to withhold federal income tax from your monthly benefit. This way, you avoid a large tax bill in April and reduce the chance of underpayment penalties.

To request withholding, complete Form W-4V (Voluntary Withholding Request) and send it to your local Social Security office or mail it to Social Security. You can choose to withhold 7, 10, 15, or 25 percent of your monthly benefit. Social Security will begin withholding the following month.

If you change your mind or want to adjust the withholding rate, you can submit a new Form W-4V at any time. Withholding is voluntary—you are not required to do it, but it is often simpler than paying a lump sum when you file your return.

State Income Tax on SSDI

Most states do not tax SSDI benefits, but a few do. The states that tax SSDI are Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, and Vermont. If you live in one of these states and owe federal tax on your SSDI, you may also owe state tax.

State tax rules vary. Some states use the same combined income threshold as the federal government; others have different thresholds or tax a flat percentage of benefits. Check your state's tax authority website or ask a tax preparer familiar with your state's rules.

If you owe state tax on SSDI, you can also request state income tax withholding using Form W-4V. Some states have their own withholding forms. Contact your state's department of revenue to find out which form to use and where to send it.

What Happens If You Do Not Pay Tax Owed on SSDI

If you owe tax on your SSDI and do not pay it, the IRS will treat it like any other unpaid tax debt. You may face penalties, interest charges, and collection action. The IRS can also offset your federal tax refund in future years to cover the debt.

If you cannot pay the full amount when you file, you can request a payment plan through the IRS. You can set up an installment agreement online, by phone, or by mail. The IRS will charge a setup fee and interest on the unpaid balance, but a payment plan lets you spread the cost over time rather than facing enforcement action.

If you believe you made an error on your return or did not understand the tax rules, you can file an amended return (Form 1040-X) within three years of the original filing date. This can reduce or eliminate the tax owed and may result in a refund.

Frequently Asked Questions

Do I have to file a tax return if I only receive SSDI and no other income?

Only if the taxable portion of your SSDI exceeds the standard deduction for your filing status. For 2024, that is $14,600 for single filers. If your SSDI is your only income and the taxable amount is below that threshold, you do not have to file. However, if you had taxes withheld from your SSDI, filing may get you a refund.

If I work part-time while on SSDI, does my wage income affect whether my SSDI is taxable?

Yes. Your wages count toward your combined income, which determines whether your SSDI becomes taxable. If your wages plus half your SSDI benefit exceed $25,000 (single), some of your SSDI will be taxable. This is separate from the SSDI work incentive rules, which allow you to earn a certain amount without losing benefits.

Can I reduce the amount of SSDI that is taxable?

No. The amount of SSDI that is taxable is determined by a formula based on your combined income; you cannot change it by making different choices. However, you can reduce your combined income by minimizing other sources of income (such as interest or dividends) if possible, which would lower the taxable portion of your SSDI.

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

Your Form SSA-1099 will show only the SSDI you actually received during that calendar year. Use that amount in your tax calculation. If you started or stopped receiving SSDI mid-year, the form will reflect only the months you were paid.

Is there a way to know in advance how much of my SSDI will be taxable?

Yes. If you know your other income for the year, you can use the IRS worksheet in Publication 915 or tax software to estimate the taxable amount. You can also call the IRS at 1-800-829-1040 and ask a representative to walk through the calculation with you.