Most people on SSDI pay no federal income tax on their benefits

Whether you owe federal income tax on your Social Security Disability Insurance (SSDI) payments depends on your total income for the year—not just what you receive from SSDI. If SSDI is your only income, you almost certainly owe nothing. But if you also earn money from work, have investment income, or receive other benefits, part of your SSDI may become taxable.

The IRS uses a formula based on your "combined income," which includes your SSDI, half of your SSDI amount, and any other income you received. If that combined income exceeds a certain threshold, you may owe tax on up to 85 percent of your SSDI benefits. The threshold is $25,000 for single filers and $32,000 for married couples filing jointly—amounts that have not changed since 1984.

You do not automatically owe tax just because you received SSDI. The Social Security Administration does not withhold taxes from SSDI payments the way employers do from paychecks. This means you have to figure out whether you owe tax and pay it yourself, usually through quarterly estimated tax payments or when you file your annual return.

Key Takeaways

  • If SSDI is your only income, you will not owe federal income tax on it, no matter how much you receive.
  • If you have other income—from work, pensions, interest, or dividends—part of your SSDI may become taxable based on a formula the IRS calls "combined income."
  • The income thresholds that trigger taxation ($25,000 for single filers, $32,000 for married filing jointly) have remained the same since 1984.
  • Social Security does not withhold taxes from SSDI payments, so you may need to pay estimated taxes quarterly or settle the bill when you file your return.

How the IRS decides if your SSDI is taxable

The IRS calculates your "combined income" by adding three things: your SSDI benefits, half of your SSDI benefits, and all your other income (wages, self-employment income, interest, dividends, pensions, and other sources). That total is what determines whether any of your SSDI becomes taxable.

If your combined income is below the threshold for your filing status, you owe no tax on your SSDI. If it exceeds the threshold, you may owe tax on up to 50 percent of your SSDI in the first tier, or up to 85 percent in a second tier if your combined income is very high. The exact amount depends on how far over the threshold you go.

For example, a single person with $30,000 in combined income would be $5,000 over the $25,000 threshold. Half of that overage ($2,500) would be subject to tax, but only if it does not exceed half of the SSDI benefits received that year. The calculation is complex, which is why many people use tax software or a tax professional to work through it.

When you earn money from work while on SSDI

If you work and receive SSDI at the same time, your wages count toward your combined income for tax purposes. This can push you over the threshold and make part of your SSDI taxable. You will also need to track your earnings against SSDI's work incentive rules, which allow you to earn a certain amount without losing benefits—but those earnings still count toward your tax calculation.

In 2024, SSDI's substantial gainful activity (SGA) threshold is $1,550 per month for non-blind individuals. If you earn more than that consistently, you may lose SSDI benefits. But even if you stay under that limit, any wages you earn will be added to your combined income when the IRS calculates whether your SSDI is taxable.

Some people find that working a small amount creates a tax bill they did not expect. It is worth running the numbers with a tax professional before you start working, so you understand whether your SSDI will become taxable and how much you might owe.

State income tax on SSDI

Most states do not tax SSDI benefits at all, even if the federal government does. However, a handful of states—including Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, and Vermont—tax SSDI under certain conditions. The rules vary by state.

Some of these states tax SSDI only if your total income exceeds a certain level, while others have different rules for residents over a certain age. A few states have recently changed their laws to stop taxing SSDI or to exempt more people. If you live in one of these states, contact your state tax authority or a tax professional to find out whether you owe state tax on your benefits.

Even if your state taxes SSDI, you may still owe nothing if your income is below your state's threshold. The state thresholds are usually different from the federal thresholds, so you need to check both.

How to report SSDI on your tax return

Social Security sends you a Form SSA-1099 each January showing how much SSDI you received the previous year. You use this form to report your benefits on your federal tax return. The amount on the SSA-1099 goes into the calculation of your combined income, even if none of it ends up being taxable.

If you file Form 1040 (the standard federal income tax form), you report your SSDI on line 5b. Tax software will walk you through the combined income calculation and tell you whether any of your SSDI is taxable. If you use a tax professional, bring your SSA-1099 and any other income documents so they can do the calculation for you.

You do not report SSDI separately on state returns in most states. In states that do tax SSDI, the state tax form will have a line for it, or your tax software will prompt you to enter it.

Paying taxes on SSDI if you owe them

If you discover that you owe tax on your SSDI, you have two main options: pay the full amount when you file your return, or arrange to have taxes withheld from your SSDI payments going forward.

To have taxes withheld, you fill out Form W-4V and send it to Social Security. You can choose to have 7, 10, 15, or 25 percent of your monthly SSDI payment withheld for federal taxes. This works like tax withholding from a paycheck—Social Security holds back the money and sends it to the IRS on your behalf. You can change your withholding amount or stop it at any time by submitting a new Form W-4V.

Many people find withholding helpful because it spreads the tax bill across the year instead of facing a large bill at tax time. If you have other income and expect to owe tax, setting up withholding early can prevent underpayment penalties.

What happens if you do not pay taxes you owe

If you owe tax on your SSDI and do not pay it, the IRS can assess penalties and interest on the unpaid amount. Over time, this debt can grow significantly. The IRS can also offset your future tax refunds to pay what you owe, though they cannot offset your SSDI benefits themselves to collect a tax debt.

If you cannot pay the full amount you owe, you can set up a payment plan with the IRS. You can also request an installment agreement, which lets you pay over time. Contact the IRS or work with a tax professional to explore your options before the debt grows larger.

Frequently Asked Questions

Do I have to file a tax return if I only receive SSDI?

No. If SSDI is your only income and it is below the filing threshold for your age and filing status, you do not have to file a federal tax return. However, if you have other income or expect to owe tax, you should file to claim any refundable credits you may be due, such as the Earned Income Tax Credit.

What counts as income for the combined income calculation?

Combined income includes your SSDI, half your SSDI, wages, self-employment income, interest, dividends, pensions, annuities, rental income, and most other sources. It does not include Supplemental Security Income (SSI), certain veterans benefits, or some other government payments. Tax software or a tax professional can help you identify all your income sources.

Can I reduce my taxable SSDI by donating to charity or taking deductions?

No. The combined income calculation that determines whether your SSDI is taxable happens before deductions. Charitable donations, medical expenses, and other deductions do not lower your combined income for this purpose. However, deductions do reduce your overall taxable income, which can lower the total tax you owe.

If I appeal my SSDI denial, do I owe back taxes if I win?

If you win an appeal and receive back pay, that back pay is not subject to federal income tax. However, you will owe tax on any SSDI you receive going forward based on your current income situation. Consult a tax professional about how back pay affects your tax situation in the year you receive it.

What if I move to a different state—do I owe state tax on SSDI?

It depends on your new state's rules. Most states do not tax SSDI, but about a dozen do under certain conditions. When you move, contact your new state's tax authority or check their website to find out whether SSDI is taxable there and whether you need to file a state return.