Whether Your SSDI Is Taxed Depends on Your Total Income

Social Security Disability Insurance (SSDI) payments are taxable income, but only if your total income exceeds a threshold set by the IRS. The threshold is low — $25,000 for a single filer, $32,000 for married filing jointly — and it includes not just SSDI but also wages, interest, dividends, and other income sources. If you stay below that threshold, you owe no federal tax on your SSDI. If you cross it, you may owe tax on up to 85 percent of your SSDI payments.

The calculation is not straightforward because the IRS uses a formula called "combined income," which adds your adjusted gross income, tax-exempt interest, and half of your SSDI benefits. This means you can cross the taxable threshold even if your non-SSDI income is modest. Many people on SSDI discover they owe taxes only when they file their return or receive a notice from the IRS.

Key Takeaways

  • SSDI becomes taxable only if your combined income (wages, interest, SSDI, and other sources) exceeds $25,000 for single filers or $32,000 for married couples filing jointly.
  • The IRS counts half of your SSDI benefits as income when calculating whether you have crossed the threshold, even if you do not owe tax on those benefits.
  • If you do owe tax, you pay it on up to 85 percent of your SSDI payments, not the full amount.
  • You can request that the Social Security Administration withhold federal income tax from your SSDI payments each month to avoid a large bill at tax time.

How the IRS Calculates Combined Income

The IRS uses a specific formula to determine whether your SSDI is taxable. Start with your adjusted gross income (wages, self-employment income, interest, dividends, and other sources). Add any tax-exempt interest you received. Then add half of your SSDI benefits. That total is your combined income.

For example: you earned $20,000 in wages and received $12,000 in SSDI. Your combined income is $20,000 + $6,000 (half of SSDI) = $26,000. Because $26,000 exceeds the $25,000 threshold for single filers, some of your SSDI is taxable. The actual amount taxed depends on how far you exceed the threshold and is calculated using IRS worksheets on Form 1040 or Form 1040-SR.

This formula catches many people by surprise because it counts half your SSDI even if none of it ends up being taxed. If you have any other income at all — even $1 in interest from a savings account — you are closer to the threshold than you might think.

What Percentage of SSDI Gets Taxed

If your combined income exceeds the threshold, the IRS taxes the lesser of two amounts: either 85 percent of your SSDI benefits, or a percentage calculated by a formula based on how much you exceeded the threshold. In practice, most people on SSDI who owe tax pay tax on somewhere between 50 and 85 percent of their benefits.

The exact percentage depends on how far above the threshold you are. If you are just barely over the threshold, you may owe tax on only 50 percent of your benefits. As your income rises, the taxable portion increases, capping at 85 percent. The IRS provides worksheets to calculate this, and tax software can do it automatically if you enter your SSDI amount.

No matter how high your income, you never pay tax on more than 85 percent of your SSDI. This is a ceiling built into the law, not a guideline.

State Income Tax on SSDI

Thirteen states tax SSDI: Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, Vermont, and West Virginia. Each state has its own income threshold and rules, which differ from the federal threshold. Some states exempt SSDI entirely for certain age groups or income levels.

If you live in one of these states, you may owe state tax on your SSDI even if you owe no federal tax, or vice versa. You will need to check your state's tax rules or consult a tax preparer familiar with your state's treatment of SSDI. The Social Security Administration does not withhold state tax automatically, so you may need to make estimated quarterly payments or request withholding separately through your state.

How to Request Tax Withholding from Your SSDI Payments

If you expect to owe federal income tax on your SSDI, you can ask the Social Security Administration to withhold a set amount from your monthly payment. This spreads the tax burden across the year instead of requiring a lump-sum payment when you file your return.

To request withholding, complete Form W-4V (Voluntary Withholding Request) and mail it to your local Social Security office or bring it in person. You can also request withholding by phone at 1-800-772-1213. On the form, you specify a flat dollar amount to withhold each month — for example, $50 or $100 — not a percentage. The withholding begins the month after Social Security receives your request.

You can change or stop withholding at any time by submitting a new Form W-4V. If you withhold too much, you will receive a refund when you file your tax return. If you withhold too little, you will owe the difference.

What Happens If You Do Not Pay Tax on SSDI You Owe

If you owe tax on SSDI and do not pay it, the IRS will send you a notice. The notice will show the amount owed, penalties, and interest. Interest accrues daily at a rate set quarterly by the IRS (currently around 8 percent annually, but this changes). Penalties are typically 0.5 percent of the unpaid tax per month, up to 25 percent total.

If you cannot pay the full amount, you can request a payment plan through the IRS. You can also request an installment agreement, which lets you pay in monthly increments. The IRS charges a setup fee for payment plans, usually between $31 and $225 depending on the method you choose. If you believe you made a good-faith error on your return, you can request penalty relief, though the IRS grants this only in specific circumstances.

Ignoring an IRS notice does not make it go away. The longer you wait, the more interest and penalties accumulate. If you receive a notice about SSDI taxes, contact the IRS or a tax professional promptly.

Frequently Asked Questions

Can I reduce my SSDI taxes by earning less money?

Yes. Because combined income determines whether SSDI is taxable, reducing wages, interest, or other income below the threshold will eliminate the tax. However, if you are working, reducing your earnings may affect your SSDI payments under the Substantial Gainful Activity (SGA) rules. Consult a work incentives planning specialist before making changes to your work or income.

Do I have to file a tax return if my only income is SSDI?

No, not if your SSDI is your only income and it is below the filing threshold for your age and filing status. However, if you have any other income — wages, interest, self-employment — you may be required to file. Filing is also wise if you had taxes withheld, because you may be owed a refund.

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

You count only the SSDI you actually received in the year you received it. If you started SSDI in June, you count only the six months of payments. The combined income threshold and tax calculation remain the same; you just use the actual SSDI amount for that year.

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

Only if you file a joint return. If you are married and file jointly, you combine both spouses' incomes and use the $32,000 threshold. If you file separately, each spouse uses the $25,000 threshold and counts only their own income. Filing separately usually results in more SSDI being taxed, so most couples benefit from filing jointly.

Can I appeal an IRS notice about SSDI taxes?

Yes. If you disagree with the amount the IRS says you owe, you can request a notice of deficiency and file a petition with the U.S. Tax Court within 90 days. You can also request an audit reconsideration if you believe the IRS made an error. Contact the IRS or a tax professional to understand your options for your specific situation.