When You Have to Pay Taxes on SSDI Benefits

Not all of your SSDI is taxed the same way

Whether you owe federal income tax on your SSDI depends on your combined income—not just what Social Security sends you. The IRS counts SSDI differently than wages or other income sources, and part of your benefit may be tax-free while another part is taxed. The exact amount depends on how much other income you have that year.

If SSDI is your only income, you typically owe no federal tax. But if you have earnings from work, a pension, investment income, or other sources, some of your SSDI becomes taxable. The threshold is low enough that many people with modest side income end up owing tax on a portion of their benefits.

Key Takeaways

SSDI becomes taxable only when your combined income exceeds a threshold set by the IRS, which is $25,000 for single filers and $32,000 for married couples filing jointly.
The IRS uses a formula called "combined income" that includes your SSDI plus half of your SSDI plus all other income, which creates the taxable portion.
You do not have to pay tax on SSDI if it is your sole source of income, even if the amount is above the standard deduction.
State taxes on SSDI vary widely—some states do not tax SSDI at all, while others tax it the same way the federal government does.

How the IRS calculates which part of SSDI is taxable

The IRS uses a specific formula to determine how much of your SSDI counts as income for tax purposes. First, they add up your combined income: this is your SSDI plus half of your SSDI plus all other income (wages, interest, pensions, rental income, and so on). Then they compare that number to a threshold.

If your combined income is below $25,000 (or $32,000 if you are married filing jointly), none of your SSDI is taxed. If it exceeds that threshold, up to 50 percent of your SSDI becomes taxable—but only up to a second threshold. If your combined income exceeds $34,000 (or $44,000 for married couples), up to 85 percent of your SSDI can be taxed.

This means a person with $26,000 in combined income pays tax on a smaller portion than someone with $40,000 in combined income. The more non-SSDI income you have, the more of your SSDI becomes subject to tax.

When SSDI stays completely tax-free

If SSDI is your only income source, you owe no federal income tax on it, regardless of the amount. This is true even if you receive $50,000 or more in SSDI in a year. The standard deduction does not explore to SSDI the way it does to wages—SSDI has its own separate rules.

Many people on SSDI also receive Supplemental Security Income (SSI), which is a different program. SSI is never taxable, and it does not count as income when calculating whether your SSDI is taxable. However, if you work part-time or have investment income, that income does count, and it may push some of your SSDI into taxable territory.

Other income that triggers SSDI taxation

Any income outside of SSDI can make part of your benefit taxable. This includes wages from part-time or full-time work, self-employment income, interest from savings accounts, dividends from investments, rental income, pension payments, and withdrawals from retirement accounts like IRAs or 401(k)s.

Even small amounts of income count. If you earn $1,000 from a part-time job and receive $20,000 in SSDI, your combined income is $21,500 (using the IRS formula), which is still below the $25,000 threshold. But if you earn $6,000 and receive $20,000 in SSDI, your combined income reaches $26,000, and some of your SSDI becomes taxable.

Certain income does not count toward the combined income threshold. SSI does not count. Gifts do not count. Tax-exempt interest (such as interest from municipal bonds) does not count toward the threshold, though it does count toward other income limits if you receive SSI.

State taxes on SSDI vary widely

Thirteen states tax SSDI the same way the federal government does: Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, Vermont, and West Virginia. In these states, if your SSDI is taxable at the federal level, it is also taxable at the state level.

The remaining states either do not tax SSDI at all or have their own rules. Some states exempt SSDI entirely from state income tax even though it is taxable federally. If you live in one of those states, you may owe federal tax but no state tax on the same income.

If you move to a different state during the year, you may need to file taxes in both states. Check your state's tax authority website or speak with a tax professional who knows your state's rules, because state treatment of SSDI can change.

How to report SSDI on your tax return

Social Security sends you a Form SSA-1099 each January showing the total SSDI you received the previous year. You use this form to report your benefits on your federal tax return. If you owe tax on part of your SSDI, you report it on Form 1040 (the main federal income tax form) along with any other income.

The calculation of how much SSDI is taxable is complex enough that many people use tax software or a tax professional to get it right. If you do your own taxes, the IRS worksheet in the instructions for Form 1040 walks you through the combined income calculation step by step.

You do not have to file a return at all if your income is below the filing threshold for your age and filing status. But if you have other income and your total reaches the threshold, you must file even if no tax is owed, because the IRS needs to see the full picture of your income.

What happens if you do not pay tax on SSDI you owe tax on

If you owe tax on SSDI and do not pay it, the IRS can assess penalties and interest on the unpaid amount. You may also face an audit if your return is selected for review. The safest approach is to file a return if you think any of your SSDI is taxable, even if you are unsure of the exact amount.

If you cannot afford to pay the full amount you owe, you can set up a payment plan with the IRS. You can also request an extension to file your return if you need more time to gather documents or figure out your tax situation.

Frequently Asked Questions

Does half of my SSDI count as income even if it is not taxed?

Yes. The IRS formula counts half of your SSDI as income when calculating whether you cross the threshold, even though that half is not itself taxed. This is why someone with $20,000 in SSDI and $6,000 in other income has a combined income of $26,000 for tax purposes, not $26,000.

If I earn money from work, does all of it count toward the SSDI tax threshold?

Yes, all wages and self-employment income count toward combined income. There is no exclusion or deduction for work income when calculating whether your SSDI becomes taxable. Even $100 in part-time earnings counts.

Can I avoid paying tax on SSDI by not reporting other income?

No. The IRS requires you to report all income, and they cross-check your return against W-2s, 1099s, and other documents. Failing to report income can result in penalties, interest, and potential criminal charges for tax evasion.

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

You report only the SSDI you actually received on your tax return. If you started receiving SSDI in June, your Form SSA-1099 will show only the six months of benefits you got. The combined income calculation uses that actual amount, not an annualized figure.

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

No. If SSDI is your sole income source, you have no filing requirement and owe no federal tax, regardless of the amount. However, if you have any other income, you may need to file even if your total is below the standard deduction.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.