Most SSDI recipients pay no federal income tax on their benefits
If SSDI is your only income, you almost certainly will not owe federal income tax on those payments. The Social Security Administration does not tax SSDI itself. However, if you have other income — wages, interest, pensions, or certain other benefits — part of your SSDI can become taxable. The rule depends on your "combined income," which is a specific calculation that includes your SSDI plus half of it plus any other income you receive.
This matters because many people assume SSDI is always tax-free. It is tax-free in isolation. But the moment you earn wages or receive other income, you need to know whether that combination pushes you into a situation where the IRS wants a portion of your SSDI back.
Key Takeaways
- SSDI payments themselves are never taxed by the federal government, but they can become taxable if your combined income exceeds certain thresholds.
- Combined income includes your SSDI, plus half your SSDI, plus all other income you receive — wages, pensions, interest, and some other benefits.
- If you are single and your combined income is under $25,000, your SSDI is not taxable; if it is between $25,000 and $34,000, up to 50 percent of your SSDI may be taxable.
- If you are married filing jointly, the thresholds are $32,000 and $44,000, and the taxable portion can reach up to 85 percent of your SSDI if combined income is very high.
- You do not have to file a tax return if SSDI is your only income, even if you receive other non-taxable benefits.
How combined income is calculated
The IRS uses a formula called "combined income" to decide whether any of your SSDI becomes taxable. It is not the same as your adjusted gross income on your tax return. Combined income is: your SSDI amount, plus half of your SSDI, plus all other income you receive (with a few exceptions).
For example: if you receive $1,500 per month in SSDI ($18,000 per year) and earn $10,000 in wages, your combined income is $18,000 + $9,000 (half of SSDI) + $10,000 = $37,000. That combined income figure is what determines whether any SSDI becomes taxable.
Other income that counts toward combined income includes W-2 wages, self-employment income, interest, dividends, capital gains, pensions, annuities, rental income, and taxable distributions from retirement accounts. Some income does not count: Supplemental Security Income (SSI) does not count, nor do certain veterans benefits, workers' compensation, or nontaxable interest.
The income thresholds where SSDI becomes taxable
The IRS sets two thresholds. If your combined income falls below the first threshold, none of your SSDI is taxable. If it falls between the first and second threshold, up to 50 percent of your SSDI may be taxable. If it exceeds the second threshold, up to 85 percent of your SSDI may be taxable.
For a single filer in 2024, the thresholds are $25,000 and $34,000. For married filing jointly, they are $32,000 and $44,000. For married filing separately, the first threshold is $0 — meaning almost any income can trigger taxation of SSDI.
These thresholds do not change with inflation. Congress sets them by statute, and they have remained the same since 1984. This means that over time, more people fall into the taxable range even if their income has not risen in real terms.
When you have wages or self-employment income
If you work while receiving SSDI, your wages count toward combined income. This is separate from the earnings test that can reduce your SSDI payment itself — that rule applies only if you are under full retirement age and earning above a certain amount. The taxation rule applies regardless of your age.
Self-employment income also counts. If you run a business or have freelance income, you report it on Schedule C, and that full amount (after business expenses) counts toward combined income. This can push you into the taxable range even if your SSDI payment is modest.
Part-time work, gig work, and seasonal work all count the same way. There is no exemption for low-wage work or work below a certain threshold. Only the amount of income matters.
Pensions, retirement accounts, and other income sources
If you receive a pension — from a former employer, a union, or a government job — that pension counts toward combined income at its full amount. The same is true for distributions from IRAs, 401(k)s, or other retirement accounts. These are often the reason SSDI becomes taxable for people who are not working.
Interest and dividends from savings accounts, stocks, bonds, and CDs all count. Even small amounts of interest add up if you have substantial savings. Capital gains from selling investments count as well.
Rental income, annuity payments, and taxable distributions from trusts all count. The rule is broad: if it is income the IRS would normally tax, it counts toward combined income for SSDI taxation purposes.
What to do if your SSDI becomes taxable
If your combined income exceeds the first threshold, you may owe federal income tax on part of your SSDI. You calculate the taxable amount using a worksheet in IRS Publication 915, which walks through the formula step by step. Many people use a tax preparer or software to do this, since the calculation is not intuitive.
You report the taxable portion of your SSDI on line 5b of Form 1040. The Social Security Administration sends you a Form SSA-1099 in January showing the total SSDI you received the previous year; you use that figure in the calculation.
If you expect your SSDI to be taxable, you can ask the Social Security Administration to withhold federal income tax from your monthly payment. You do this by completing Form W-4V and submitting it to your local Social Security office or online through your my Social Security account. Withholding can help you avoid owing a large amount when you file your return.
State income tax on SSDI
Most states do not tax SSDI. However, a few states do: Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, and Vermont tax SSDI under certain circumstances. The rules vary by state — some tax it only if your income is above a threshold, others only if you are above a certain age, and some have other conditions.
If you live in one of these states, contact your state tax authority or a tax preparer familiar with your state's rules. State taxation of SSDI is separate from federal taxation and uses different thresholds and formulas.
Frequently Asked Questions
Do I have to file a tax return if SSDI is my only income?
No. If SSDI is your only income, you do not have to file a federal income tax return, even if you receive other non-taxable benefits like SSI or veterans benefits. The IRS does not require a return unless your income exceeds the filing threshold for your age and filing status.
What if I have very little other income — like $100 in interest?
That $100 counts toward your combined income. If your combined income is still below the first threshold ($25,000 for single filers), your SSDI remains non-taxable. But if you are close to the threshold, small amounts of income can push you over and trigger taxation of part of your SSDI.
Can I reduce my combined income to avoid SSDI taxation?
Not easily. You cannot exclude income from the combined income calculation just because you do not want to pay tax on SSDI. However, you can manage when you receive certain income — for example, delaying a large withdrawal from a retirement account to a different year, or timing the sale of an investment. A tax professional can advise on strategies specific to your situation.
If I withhold taxes from my SSDI, will I get a refund?
You may. If you withhold more than you owe in federal income tax for the year, you will receive a refund when you file your return. Withholding is straightforward a way to pay your tax obligation throughout the year rather than in a lump sum at tax time.
Does the earnings test affect whether SSDI is taxable?
No. The earnings test (which can reduce your SSDI payment if you work and are under full retirement age) is separate from the taxation rule. You can be subject to the earnings test, the taxation rule, both, or neither, depending on your age and income.