Most SSDI payments are not taxable, but you may owe tax on part of your benefits if you have other income
Whether you report SSDI on your tax return depends on your combined income—not just what you received from Social Security. If SSDI is your only income, you almost certainly owe no federal tax on it. But if you also earned wages, received interest, or drew from a retirement account, part of your SSDI may become taxable. The IRS uses a formula based on your "combined income," which includes half of your SSDI plus all other income sources.
The taxable portion is never more than 85 percent of your benefits, even if your combined income is very high. And many people with SSDI and modest other income still owe nothing because the thresholds are low enough that they fall below the filing requirement altogether.
Social Security sends you a Form SSA-1099 each January showing how much you received in the prior year. This is the document you use to calculate whether any of it is taxable. You do not report the gross amount; you work through the IRS formula to find the taxable portion, if any.
Key Takeaways
- SSDI by itself is not taxable income, but combined income—half your SSDI plus all other income—determines whether part of your benefits becomes taxable.
- If your combined income is below $25,000 (single) or $32,000 (married filing jointly), none of your SSDI is taxable.
- You receive a Form SSA-1099 in January showing your prior-year SSDI; use this to calculate your combined income and any taxable portion.
- Even if part of your SSDI is taxable, you may not be required to file a return if your total income is below the filing threshold for your age and filing status.
- Paying estimated tax quarterly can help you avoid a large bill at tax time if you have substantial other income alongside SSDI.
How the IRS calculates taxable SSDI using combined income
The IRS does not straightforward add up your SSDI and other income. Instead, it uses a two-tier formula based on combined income, which is defined as your adjusted gross income (AGI) plus nontaxable interest plus half of your SSDI.
Here is how it works in practice. Suppose you received $15,000 in SSDI and earned $12,000 in wages. Your combined income is $12,000 + (half of $15,000) = $12,000 + $7,500 = $19,500. Because $19,500 is below $25,000, none of your SSDI is taxable. You report the $12,000 in wages but not the SSDI.
Now suppose you received $15,000 in SSDI and $20,000 in wages. Your combined income is $20,000 + $7,500 = $27,500. This exceeds $25,000 by $2,500. The IRS then applies a formula: the lesser of (1) half of the amount over $25,000, or (2) half of your SSDI. In this case, half of $2,500 is $1,250, and half of your SSDI is $7,500. The lesser amount is $1,250, so $1,250 of your SSDI is taxable.
If your combined income exceeds $34,000 (single) or $44,000 (married filing jointly), a second tier kicks in and the calculation becomes more complex. At that level, you may owe tax on up to 85 percent of your benefits. Most people with SSDI do not reach this threshold, but those with pensions, investment income, or substantial wages should be aware it exists.
The income thresholds that determine whether any SSDI is taxable
Social Security sets two thresholds. If your combined income falls below the first threshold, none of your SSDI is taxable. If it exceeds the second threshold, up to 85 percent may be taxable. Between the two, a portion becomes taxable.
| Filing Status | First Threshold | Second Threshold |
|---|---|---|
| Single, head of household, or may have access to widow(er) | $25,000 | $34,000 |
| Married filing jointly | $32,000 | $44,000 |
| Married filing separately | $0 | $0 |
If you are married and file separately, the thresholds are zero—meaning any combined income at all may trigger taxation of your SSDI. This is one reason tax professionals often advise married couples to file jointly if one spouse receives SSDI and the other has income.
These thresholds have not changed since 1984 and are not indexed to inflation. As a result, more people with modest incomes fall into the taxable range each year, even if their real income has not risen.
What counts as income for the combined income calculation
Combined income includes more than just wages. The IRS counts wages, self-employment income, interest, dividends, capital gains, rental income, and distributions from retirement accounts. It also includes nontaxable interest from municipal bonds—which is why someone with low wages but high bond income can still owe tax on SSDI.
Some income sources do not count. Supplemental Security Income (SSI) is excluded. So is the return of your own principal from an investment or savings account. Gifts and inheritances do not count. Neither do Roth IRA conversions or rollovers, though the income used to fund them does.
If you received a distribution from a traditional IRA, 401(k), or pension, the full amount counts toward combined income, even if part of it was a return of contributions you already paid tax on. This is a common surprise for people who retire early and draw from retirement accounts while also receiving SSDI.
Work incentive programs like the Student Earned Income Exclusion (SEIE) or Impairment Related Work Expenses (IRWE) reduce your countable earnings for SSDI benefit purposes, but they do not reduce the income you report to the IRS. The IRS sees the full gross amount.
When you must file a return even if no SSDI is taxable
Even if none of your SSDI is taxable, you may still be required to file a return if your other income exceeds the filing threshold for your age and filing status. The IRS sets different thresholds depending on whether you are under or over 65, and whether you are single or married.
For 2024, a single person under 65 must file if their gross income is $14,600 or more. A single person 65 or older must file if gross income is $18,450 or more. For married couples filing jointly, the thresholds are higher—$29,200 if both spouses are under 65, and $30,750 if one spouse is 65 or older.
These thresholds explore to your total income, including wages, interest, and any taxable portion of SSDI. If you are below the threshold, you are not required to file, though you may want to if you had taxes withheld and are due a refund.
SSDI itself does not count toward the filing threshold unless part of it is taxable. So if you received $20,000 in SSDI and $5,000 in wages, and none of the SSDI is taxable, your filing threshold is based on the $5,000 in wages alone.
How to report taxable SSDI on your tax return
If you determine that part of your SSDI is taxable, you report it on Form 1040, the main individual income tax return. The taxable portion goes on line 5b, labeled "Taxable social security benefits." You do not report the full amount from your SSA-1099; you report only the portion you calculated using the IRS formula.
Many tax software programs have a worksheet or calculator built in for SSDI taxation. If you use tax software, enter the amount from your SSA-1099 and the software will walk you through the combined income calculation and populate the correct line automatically. If you file by hand, the IRS provides a worksheet in the instructions to Form 1040.
You should also report any other income on the appropriate lines: wages on line 1, interest on line 2b, dividends on line 5a, and so on. The taxable SSDI amount is added to these to arrive at your total taxable income.
If you have tax withheld from your SSDI—which happens if you elected to have the IRS withhold federal income tax—that withholding is credited against your total tax liability. You report it on line 33 of Form 1040 as federal income tax withheld.
Withholding and estimated tax when you have SSDI and other income
You can ask Social Security to withhold federal income tax from your SSDI payments. This is done using Form W-4V, which you submit to your local Social Security office or online through your my Social Security account. You can choose to have 7, 10, 12, or 22 percent withheld.
Withholding is optional, but it can help you avoid owing a large amount at tax time. If you have wages, your employer withholds tax from those wages. If you also have taxable SSDI and no withholding on it, you may underpay throughout the year and owe when you file.
If you have substantial other income—such as a pension, investment income, or self-employment income—and you do not have enough tax withheld, you may need to make quarterly estimated tax payments to the IRS. These are due April 15, June 15, September 15, and January 15. If you underpay, the IRS charges interest and penalties.
To calculate how much to withhold or pay in estimated tax, you need to know your expected total income for the year, including the taxable portion of SSDI. A tax professional can help you set this up so you break even or have a small refund rather than a surprise bill.
State income tax and SSDI
Thirteen states do not tax SSDI at all: Alabama, Alaska, Arkansas, Florida, Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Mississippi, Nevada, and South Dakota. If you live in one of these states, you owe no state income tax on your SSDI, regardless of your other income.
The remaining states follow federal rules or have their own rules. Some states tax SSDI the same way the IRS does, using the combined income formula. Others tax it more generously—for example, Missouri taxes only SSDI received by people over 59½. A few states have income thresholds higher than the federal thresholds.
You should check your state's tax agency website or speak with a tax professional to learn your state's specific rules. State tax forms often have a separate line or worksheet for SSDI, similar to the federal return.
Frequently Asked Questions
Do I have to report SSDI if it is my only income?
No. If SSDI is your only income, none of it is taxable and you are not required to file a federal return. You may still want to file if you had taxes withheld, because you would be due a refund.
What if I earned money from work while on SSDI—does that change the tax calculation?
Yes. Wages count toward your combined income, which determines whether part of your SSDI becomes taxable. If you earned $12,000 and received $15,000 in SSDI, your combined income is $19,500, and you would owe tax only on the wages, not the SSDI. But if you earned $20,000, your combined income rises to $27,500, and part of your SSDI becomes taxable.
Can I reduce the amount of SSDI that is taxable?
You cannot reduce SSDI itself, but you can reduce other income. For example, if you have a choice about when to take a retirement account distribution, delaying it to a year when your other income is lower may keep your combined income below the threshold. A tax professional can help you plan this.
What if I made a mistake on my tax return and reported the wrong amount of taxable SSDI?
You can file an amended return using Form 1040-X. You have three years from the original due date to amend. If you underpaid, you may owe interest and penalties. If you overpaid, you will receive a refund.
Does my spouse's SSDI count toward my combined income if we file jointly?
No. Each spouse calculates their own combined income using their own SSDI and their share of joint income. If you file jointly, you use the married filing jointly thresholds ($32,000 and $44,000), but you do not combine your SSDI amounts.