Whether you owe federal income tax on SSDI depends on your total income, not on receiving disability alone

You may owe federal income tax on part of your Social Security Disability Insurance (SSDI) benefits if your combined income exceeds a certain threshold. Combined income means your adjusted gross income plus nontaxable interest plus half of your SSDI benefits. The threshold is $25,000 if you file as single, $32,000 if you file as married filing jointly, and $0 if you file as married filing separately.

If your combined income stays below the threshold, you owe no federal tax on your SSDI. If it goes above, you may owe tax on up to 50 percent of your benefits, or in some cases up to 85 percent. The exact amount depends on how far above the threshold you are and what other income you have.

SSDI is never subject to state income tax in any state. Some states do not tax income at all, but even in states with income tax, SSDI is exempt. You will not see SSDI withheld for state tax purposes.

Key Takeaways

  • You owe federal income tax on SSDI only if your combined income (your earnings plus half your benefits plus other income) exceeds $25,000 (single) or $32,000 (married filing jointly).
  • If you do owe tax, you pay it on up to 50 percent of your benefits at the lower threshold, or up to 85 percent if your combined income is much higher.
  • SSDI is never taxed by any state, even in states with income tax.
  • You can request that the Social Security Administration withhold federal income tax from your monthly SSDI payment to avoid a large bill at tax time.

How the combined income calculation works

The Social Security Administration uses a specific formula to determine whether your SSDI is taxable. Start with your adjusted gross income (the number from your tax return before you claim the standard deduction or itemized deductions). Add any nontaxable interest you received, such as interest from municipal bonds. Then add half of your SSDI benefits for the year.

That total is your combined income. If it is $25,000 or less (single) or $32,000 or less (married filing jointly), you owe no federal tax on your SSDI. If it exceeds those thresholds, you move to the next calculation to find out how much of your benefits are taxable.

The thresholds have not changed since 1984. They do not adjust for inflation, so more people cross them each year as wages and other income rise.

What portion of your benefits becomes taxable

If your combined income exceeds the threshold, the taxable portion of your SSDI is the smaller of two amounts: either 50 percent of your benefits, or 50 percent of the amount by which your combined income exceeds the threshold.

For example, suppose you are single with $28,000 in combined income. You are $3,000 over the $25,000 threshold. Half of $3,000 is $1,500. If your annual SSDI is $12,000, half of that is $6,000. The smaller of $1,500 and $6,000 is $1,500, so $1,500 of your SSDI is taxable.

If your combined income is much higher, a second tier applies. Any combined income above $34,000 (single) or $44,000 (married filing jointly) can make up to 85 percent of your benefits taxable. This second calculation is complex and involves comparing multiple amounts; the IRS worksheet in Publication 915 walks through it step by step.

Sources of income that count toward the threshold

Earned income (wages from work) counts fully toward combined income. So does income from self-employment, pensions, annuities, capital gains, and rental income. Nontaxable interest counts, as noted above. Taxable interest and dividends count. Income from an IRA or 401(k) counts.

Some income does not count. Supplemental Security Income (SSI) does not count. Veterans benefits do not count. Workers' compensation does not count. Gifts do not count. The return of your own principal from an investment does not count—only the earnings do.

If you are married and file jointly, the Social Security Administration combines both spouses' income to determine whether the threshold is crossed. If you file separately, each spouse is treated individually, but the threshold drops to $0, meaning any SSDI is potentially taxable.

Requesting tax withholding from your SSDI payment

You can ask the Social Security Administration to withhold federal income tax from your monthly SSDI check. This is voluntary, but it prevents you from owing a large amount when you file your tax return.

To request withholding, complete Form W-4V (Voluntary Withholding Request) and submit it to your local Social Security office, mail it to the address on the form, or upload it through your my Social Security account online. You can specify a flat dollar amount to be withheld each month, or you can request that a percentage be withheld.

Once you submit the form, withholding begins with your next payment. You can change or stop withholding at any time by submitting a new Form W-4V. Keep a copy for your records.

Reporting SSDI on your tax return

The Social Security Administration sends you a Form SSA-1099 by January 31 each year showing the total SSDI you received. You use this form to report your benefits on your federal tax return.

If you are required to file a return (based on your income), you report your SSDI on line 5b of Form 1040 or 1040-SR. You also complete the worksheet in IRS Publication 915 to calculate how much of your benefits are taxable, then report the taxable amount on line 5b as well.

If your combined income is below the threshold and none of your SSDI is taxable, you still receive the Form SSA-1099, but you do not report any amount on your tax return. You do not need to file a return at all if your only income is nontaxable SSDI.

State tax treatment of SSDI

No state taxes SSDI benefits, regardless of whether the state has an income tax. This is true in all 50 states and the District of Columbia. Even if you owe federal tax on your SSDI, you will not owe state tax on it.

Some states do not have an income tax at all (Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, and Wyoming). In those states, the question does not arise. In the other 42 states and D.C., SSDI is specifically exempt from state income tax by state law.

Frequently Asked Questions

If I work part-time and receive SSDI, how does my wages affect whether I owe tax on my benefits?

Your wages count as earned income and are added to your combined income total. If your wages plus other income plus half your SSDI exceeds the threshold, part of your SSDI becomes taxable. For example, if you earn $20,000 in wages and receive $12,000 in SSDI annually, your combined income is $20,000 plus $6,000 (half your benefits) equals $26,000, which exceeds the $25,000 single threshold by $1,000.

Do I have to pay self-employment tax on SSDI?

No. Self-employment tax (Social Security and Medicare tax) applies only to net earnings from self-employment. SSDI benefits are not earnings and are not subject to self-employment tax, even if you are self-employed in another business.

What if I disagree with the amount of SSDI the Social Security Administration says I received?

Check your Form SSA-1099 against your payment records. If the amount on the form does not match what you actually received, contact your local Social Security office or call 1-800-772-1213 to report the discrepancy. The Social Security Administration can issue a corrected form.

Can I reduce my combined income to avoid owing tax on my SSDI?

You can lower your combined income by reducing other sources of income if you have control over them—for example, by deferring a bonus, delaying the sale of an investment, or timing retirement account withdrawals. However, you cannot reduce SSDI itself, and the threshold amounts are fixed by law. Consult a tax professional about strategies that fit your situation.

If I owe tax on my SSDI, do I pay it when I file my return, or is it withheld?

If you did not request withholding on Form W-4V, you owe the tax when you file your return. If you did request withholding, the amount withheld is credited against your total tax liability. Either way, you report the taxable portion of your SSDI on your return and pay any remaining balance due or receive a refund if you overpaid.