Whether your SSDI is taxed depends on your other income

Not all SSDI payments are taxed. The IRS taxes your benefits only if your combined income exceeds a certain threshold. Combined income means your adjusted gross income plus nontaxable interest plus half of your SSDI benefits — a specific calculation the IRS uses.

If your combined income stays below the threshold, you owe no federal tax on your SSDI. If it exceeds the threshold, you may owe tax on up to 85 percent of your benefits. The exact amount taxed depends on how far over the threshold you go.

A few states also tax SSDI, though most do not. Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, and Vermont tax some or all SSDI benefits under their own state income tax rules. If you live in one of these states, you may owe state tax even if you owe no federal tax.

Key Takeaways

  • Federal tax on SSDI applies only if your combined income (adjusted gross income plus nontaxable interest plus half your SSDI) exceeds $25,000 for single filers or $32,000 for married couples filing jointly.
  • If you are over the threshold, between 50 and 85 percent of your benefits may be taxed, depending on how much your combined income exceeds the limit.
  • Eleven states tax SSDI under their own rules, so you may owe state tax even if you owe nothing to the federal government.
  • The Social Security Administration does not withhold taxes automatically — you must request withholding or make quarterly estimated tax payments yourself.

The income thresholds that determine whether you pay tax

The IRS sets two thresholds. If your combined income is below the first threshold, you owe no federal tax on your SSDI. If it is above the second threshold, you may owe tax on up to 85 percent of your benefits.

For federal tax purposes, the thresholds are $25,000 for single filers and $32,000 for married couples filing jointly. These thresholds have not changed since 1984. Combined income is calculated as your adjusted gross income plus nontaxable interest plus half of your SSDI benefits.

Example: You are single and receive $1,500 per month in SSDI ($18,000 per year). You also have $10,000 in interest income. Your combined income is $10,000 plus half of $18,000 ($9,000), which equals $19,000. Since $19,000 is below $25,000, you owe no federal tax on your SSDI.

Example: You are single and receive $1,500 per month in SSDI ($18,000 per year). You also have $20,000 in wages from part-time work. Your combined income is $20,000 plus half of $18,000 ($9,000), which equals $29,000. Since $29,000 exceeds $25,000, some of your SSDI is taxable.

How much of your benefits gets taxed once you cross the threshold

Once your combined income exceeds the threshold, the IRS uses a two-tier system to calculate how much of your SSDI is taxable. The calculation is complex, but the result is that between 50 and 85 percent of your benefits may be taxed.

The first tier taxes up to 50 percent of your benefits. This applies to the amount by which your combined income exceeds the first threshold ($25,000 for single filers, $32,000 for married couples). You pay tax on the lesser of (a) 50 percent of the excess, or (b) 50 percent of your SSDI benefits.

The second tier taxes up to an additional 35 percent of your benefits. This applies to the amount by which your combined income exceeds a second threshold ($34,000 for single filers, $44,000 for married couples). You pay tax on the lesser of (a) 50 percent of the excess above the second threshold, or (b) 35 percent of your SSDI benefits (minus any amount already taxed in the first tier).

Because of this structure, the maximum percentage of your SSDI that can be taxed is 85 percent. You would reach this only if your combined income is substantially higher than the second threshold.

States that tax SSDI benefits

Most states do not tax SSDI. However, Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, and Vermont do tax SSDI under their own state income tax rules. The amount and method vary by state.

Some of these states tax SSDI the same way the federal government does — using combined income thresholds and taxing a percentage of benefits. Others tax SSDI as ordinary income without special thresholds. A few states exempt SSDI entirely from state tax but tax other Social Security benefits.

If you live in one of these eleven states, contact your state tax authority or a tax professional to understand your state's specific rules. You may owe state tax on SSDI even if you owe no federal tax.

How to handle tax withholding on your SSDI

The Social Security Administration does not withhold federal income tax from SSDI payments automatically. If you expect to owe tax, you have two options: request voluntary withholding from your benefits, or make quarterly estimated tax payments to the IRS yourself.

To request withholding, complete Form W-4V (Voluntary Withholding Request) and submit it to your local Social Security office or mail it to the address on the form. You can request that Social Security withhold 10, 15, 25, or 35 percent of your monthly benefit. You can change your withholding amount or stop it at any time by submitting a new form.

If you prefer to make estimated tax payments instead, you can pay the IRS directly using Form 1040-ES (Estimated Tax for Individuals). Estimated payments are due four times per year: April 15, June 15, September 15, and January 15. This route requires you to calculate your own tax liability.

Many people find voluntary withholding simpler because Social Security handles the payment to the IRS automatically. However, if your tax situation is complex or you have other income sources, estimated payments may give you more control.

What happens if you do not withhold or pay estimated taxes

If you owe tax on your SSDI and do not withhold or pay estimated taxes, you will owe the full amount when you file your tax return. The IRS may also charge you penalties and interest if your tax bill is large enough.

You are required to file a federal income tax return if your combined income exceeds the threshold for your filing status. Filing a return is how the IRS learns what you owe and how you settle the debt. If you do not file and owe tax, the IRS can pursue collection action.

The safest approach is to request voluntary withholding or make estimated payments throughout the year. This spreads the tax cost across your monthly benefits rather than creating a large bill at tax time.

Frequently Asked Questions

Can I reduce my SSDI tax by lowering my other income?

Yes. Because tax on SSDI is based on combined income, reducing income from work, interest, or other sources can lower or eliminate your SSDI tax. For example, if you are close to the threshold, delaying a large bonus or interest payment to the next year might keep you below the limit. A tax professional can help you plan this.

Does my spouse's income count toward the threshold if we file separately?

If you are married and file separately, the threshold is zero — any combined income at all may result in some of your SSDI being taxed. Filing jointly uses the higher $32,000 threshold and is almost always more favorable. Consult a tax professional before filing separately.

What if I disagree with the amount of tax Social Security withheld?

You can change your withholding at any time by submitting a new Form W-4V. If you believe Social Security withheld incorrectly, contact your local Social Security office with your benefit statement and the dates of the payments in question. You can also claim a refund on your tax return if you overpaid.

Do I have to report my SSDI on my tax return even if it is not taxed?

You must file a return if your combined income exceeds the threshold, regardless of whether any of your SSDI is actually taxed. You report your SSDI on Form 1040 and Schedule 1, and the IRS uses that information to calculate your tax. If your combined income is below the threshold, you do not have to file unless you have other reasons to do so.

Are there any deductions or credits that reduce SSDI tax?

No. SSDI tax is calculated based on combined income, not on deductions or credits. However, standard deductions and other tax credits can reduce your overall tax bill. A tax professional can review your full situation to see what deductions and credits you may be may have access to to claim.