Whether you owe tax on SSDI depends on your total income, not just your disability payments

Social Security Disability Insurance (SSDI) payments themselves are not automatically taxable. However, the IRS can tax a portion of your benefits if your combined income exceeds a certain threshold. Combined income includes your SSDI payments, wages, interest, dividends, and other income sources added together. The threshold is low — $25,000 for a single filer or $32,000 for married filing jointly — which means many SSDI recipients do owe tax on part of their benefits.

The tax applies only to the amount of SSDI that pushes you over the threshold. If you are below the threshold, you owe nothing. If you are above it, you pay federal income tax on up to 85 percent of your benefits, depending on how far over you go. This is separate from any state income tax, which varies by state.

Key Takeaways

  • SSDI becomes taxable only if your combined income (SSDI plus all other income) exceeds $25,000 for single filers or $32,000 for married filing jointly.
  • The tax applies to a portion of your benefits, not the full amount, and only the excess over the threshold is subject to taxation.
  • You must file a federal tax return if your combined income is above the threshold, even if you normally would not file.
  • Some states tax SSDI and some do not, so your state tax obligation depends on where you live.
  • You can request that the Social Security Administration withhold taxes from your monthly payment to avoid a large bill at tax time.

How the IRS calculates taxable SSDI

The IRS uses a two-tier system to determine how much of your SSDI is taxable. The first tier applies if your combined income is between the threshold and $9,000 above it (for single filers; $12,000 for married filing jointly). In this range, up to 50 percent of your benefits may be taxable.

The second tier applies if your combined income exceeds $34,000 (single) or $44,000 (married filing jointly). In this range, up to 85 percent of your benefits may be taxable. The exact amount depends on how much you earn above each threshold. The calculation is complex, which is why many people use a tax professional or the IRS worksheet to figure it out.

Combined income is calculated as your adjusted gross income (AGI) plus nontaxable interest plus half of your SSDI benefits. This means SSDI counts toward the threshold twice — once as income and once as half its value in the formula. This is why the threshold is so straightforward to exceed.

When you must file a tax return

You must file a federal tax return if your combined income exceeds the threshold for your filing status, even if you have no other income and would not normally file. This is true even if no tax is ultimately owed — the IRS requires you to file to determine whether any of your benefits are taxable.

If you are unsure whether you must file, use the IRS Interactive Tax Assistant on irs.gov or contact a tax professional. Filing is free through the IRS Free File program if your income is below a certain level, or through a community tax clinic in your area.

Requesting tax withholding from your SSDI payment

You can ask the Social Security Administration to withhold federal income tax directly from your monthly SSDI payment. This prevents a large tax bill in April and is especially useful if you have other income that is not subject to withholding.

To request withholding, complete Form W-4V (Voluntary Withholding Request) and submit it to your local Social Security office, by mail, or online through your my Social Security account. You can specify a flat dollar amount to withhold each month or a percentage of your benefit. You can change or stop withholding at any time by submitting a new form.

Withholding is voluntary and does not change whether your benefits are taxable — it only changes when you pay the tax. If you do not request withholding and owe tax, you will owe it when you file your return.

State income tax on SSDI

Thirty-seven states do not tax SSDI at all. Thirteen states tax SSDI under the same rules as the federal government, and a few have different thresholds or percentages. The states that tax SSDI are Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, Vermont, and West Virginia. Illinois taxes SSDI but only for people over 65.

If you live in a state that taxes SSDI, you will need to file a state tax return in addition to your federal return if your income exceeds your state's threshold. State thresholds and tax rates vary, so check your state's tax agency website or contact them directly to learn your obligation.

What to do if you receive a notice from the IRS

If the IRS sends you a notice about your SSDI and taxes, open it when ready and read it carefully. The notice will explain what the IRS believes you owe and why. Do not ignore it — the IRS can take enforcement action if you do not respond.

If you disagree with the notice or do not understand it, you have the right to respond. You can contact the IRS at the phone number on the notice, request help from a tax professional, or contact the Taxpayer Advocate Service (a free IRS office that helps people resolve disputes). Keep copies of all documents you send to the IRS and all responses you receive.

Frequently Asked Questions

Do I have to pay tax on my entire SSDI payment?

No. Tax applies only to the portion of your benefits that, combined with your other income, exceeds the threshold. If your combined income is $26,000 and you are single, only the $1,000 over the $25,000 threshold is subject to the tax calculation — and even then, only a percentage of it may be taxable depending on the tier.

What counts as income for the combined income calculation?

Combined income includes wages, self-employment income, interest, dividends, capital gains, rental income, pensions, and other retirement income. It does not include Supplemental Security Income (SSI), certain veterans' benefits, or workers' compensation in some cases. Half of your SSDI benefits also counts toward combined income.

Can I reduce my taxable SSDI by earning less?

Yes. If you have control over your income — for example, through work or investment decisions — reducing your other income below the threshold will eliminate the tax on your SSDI. However, this strategy only works if you can actually reduce your income without hardship.

What if I did not withhold taxes and now owe a large amount?

Contact the IRS to discuss a payment plan. The IRS offers installment agreements that let you pay over time rather than in one lump sum. You can set up a plan by phone, online, or through a tax professional. The sooner you contact the IRS, the more options you have.

Does my spouse's SSDI count toward my combined income?

No. Each person's SSDI is calculated separately for tax purposes. Your spouse's benefits do not count toward your combined income threshold, and yours do not count toward theirs. However, if you file a joint tax return, both of your combined incomes are reported together on that return.