Your disability payments may be taxable, but most people on SSDI pay no tax on them
Whether you owe federal income tax on your SSDI payments depends on your combined income—not just what Social Security sends you. Combined income includes your wages, interest, dividends, and half of your Social Security benefits added together. If your combined income stays below a certain threshold, you owe nothing. If it crosses that threshold, you may owe tax on up to 85 percent of your benefits.
The threshold is low: $25,000 for a single filer, $32,000 for married filing jointly. These numbers have not changed since 1984, so even modest earnings can push you over. The good news is that most people receiving SSDI have little or no other income, which means most pay no tax on their benefits at all.
Key Takeaways
- Your SSDI payments are taxable only if your combined income (benefits plus wages, interest, and other income) exceeds $25,000 for single filers or $32,000 for married couples filing jointly.
- Combined income includes half of your Social Security benefits, so even if you have no other earnings, your benefits themselves count toward the threshold.
- If you do owe tax, you pay it on up to 85 percent of your benefits, not the full amount.
- You report this on your federal tax return using Form 1040 and Schedule 1, and Social Security sends you a Form SSA-1099 each January showing what you received.
How combined income is calculated
The IRS uses a specific formula to determine whether your benefits are taxable. Start with your adjusted gross income (wages, self-employment income, interest, dividends, and other earnings). Add to that any tax-exempt interest you earned. Then add half of your Social Security benefits. That total is your combined income.
The half-of-benefits rule is the part that catches people off guard. If you received $15,000 in SSDI for the year, $7,500 of that counts toward your combined income threshold, even if you earned nothing else. This means you can hit the taxable threshold on Social Security alone, without any wages at all.
If you are married filing jointly, you combine your income with your spouse's income, including half of both spouses' Social Security benefits. If your spouse works and you receive SSDI, their earnings push your household combined income higher, which may trigger taxation on your benefits.
The two-tier tax calculation
If your combined income exceeds the threshold, you do not pay tax on all your benefits. Instead, the IRS uses a two-tier system that determines what percentage of your benefits become taxable.
For the first tier, if your combined income exceeds the threshold by up to $9,000 (single) or $12,000 (married filing jointly), you pay tax on up to 50 percent of your benefits. For the second tier, if your combined income exceeds the first-tier limit, you pay tax on up to 85 percent of your benefits. The exact amount depends on how far over the limit you go.
Example: You are single with $28,000 in combined income. You are $3,000 over the $25,000 threshold. You would pay tax on up to 50 percent of your benefits. If you had $40,000 in combined income instead, you would be in the second tier, and up to 85 percent of your benefits could be taxable.
Who receives a Form SSA-1099
Each January, Social Security mails you a Form SSA-1099 showing how much you received in benefits during the previous year. This form goes to you and to the IRS. You use the amount on this form to calculate your combined income and determine whether any of your benefits are taxable.
You receive a Form SSA-1099 if you received any SSDI payments during the year, even if you also received other Social Security benefits. If you did not receive benefits for the full year—for example, if your benefits started in June—the form shows only what you actually received.
Keep your Form SSA-1099 with your tax records. You will need it to fill out your federal tax return, and the IRS will have a copy as well.
Reporting your benefits on your tax return
You report your Social Security benefits on Form 1040, the main federal income tax form. On line 5b, you enter the taxable portion of your benefits (the amount the IRS calculated using the two-tier system). You also complete Worksheet A in the Form 1040 instructions to calculate exactly how much of your benefits are taxable.
If you have other income sources—wages, self-employment income, interest, or dividends—you report those on the appropriate lines of Form 1040 and Schedule 1. The total of all your income, including the taxable portion of your benefits, determines your overall tax liability.
If you work and earn wages, your employer sends you a Form W-2 showing what you earned. If you are self-employed, you report your net profit on Schedule C. All of this income counts toward your combined income threshold.
State income tax on SSDI
Federal tax rules do not explore to state income tax. Some states tax Social Security benefits, and some do not. The rules vary widely by state.
If you live in a state with income tax, check your state's tax agency website or contact them directly to learn whether SSDI is taxable under state law. Some states exempt all Social Security income. Others tax it using rules similar to federal rules but with different thresholds. A few states have their own thresholds and formulas.
Your state tax return is separate from your federal return, so you may owe federal tax on your benefits but owe nothing to your state, or vice versa.
What happens if you do not file a return
If your only income is SSDI and your combined income is below the threshold, you have no federal tax filing requirement. You do not have to file a return, and you owe no tax.
If you have other income—wages, self-employment income, interest, or dividends—you may be required to file even if your SSDI benefits are not taxable. The filing requirement depends on the type and amount of your other income, not on your benefits. Check the IRS filing requirements for your age and filing status.
If you are required to file and you do not, the IRS may assess penalties and interest. If you are not required to file but you want to claim a refund of taxes withheld from wages, you must file to get that refund.
Frequently Asked Questions
Can I reduce my combined income to avoid paying tax on my benefits?
Not by choice. Combined income includes wages you earn, interest and dividends you receive, and other income sources—you cannot exclude these from the calculation. However, if you work and your employer withholds taxes from your paycheck, you may get a refund when you file, which reduces what you owe overall. Some people also reduce taxable income through retirement contributions or deductions, but this does not change how combined income is calculated for Social Security purposes.
If I receive both SSDI and SSI, are both taxable?
SSI (Supplemental Security Income) is never taxable, even if your combined income is high. Only Social Security Disability Insurance (SSDI) uses the combined income test. If you receive both programs, only your SSDI portion counts toward the threshold. Your Form SSA-1099 will show SSDI and SSI separately so you can tell them apart.
What if I work part-time while receiving SSDI?
Your wages count toward combined income, which may trigger taxation on your benefits. However, SSDI has its own work rules that limit how much you can earn without affecting your benefits themselves—this is separate from the tax question. You may owe tax on your benefits while still receiving your full SSDI payment, or you may lose some or all of your SSDI due to work rules. Both explore independently.
Do I have to pay estimated taxes if my benefits will be taxable?
Only if you have income other than SSDI—such as wages or self-employment income. If your only income is SSDI and some of it is taxable, you do not have to make estimated tax payments. If you work and expect to owe tax, you may need to make quarterly estimated payments or adjust your withholding with your employer.
What if I disagree with the amount on my Form SSA-1099?
Contact Social Security directly to report the error. You can call 1-800-772-1213 or visit your local Social Security office. Do not file your tax return until the form is corrected, because the IRS will have a matching copy and discrepancies can trigger an audit. Social Security can issue a corrected Form SSA-1099 if the original amount was wrong.