SSI vs. Social Security Benefits
SSI is a federal benefit program, and the IRS treats it separately from Social Security benefits. IRS Publication 915 defines Social Security benefits as monthly retirement, survivor, and disability payments, and it leaves SSI out of that group. That’s why SSI never becomes part of your taxable income.
| SSI | Social Security benefits (including SSDI) | |
|---|---|---|
| What it includes | Supplemental Security Income payments | Monthly retirement, survivor, and disability benefits |
| Taxable? | No | Up to 50% or 85% can be taxable |
| Reported on Form 1040? | No | Yes, net benefits on line 6a and the taxable part on line 6b |
| Form SSA-1099? | Not if SSI is your only Social Security payment | Yes, net benefits appear in Box 5 |
If you also get Social Security benefits, those are the amounts you report. You’ll enter the net benefits from Box 5 of Form SSA-1099 on line 6a of Form 1040 or 1040-SR.
When Social Security Benefits Become Taxable
Social Security benefits become partly taxable when your combined income is higher than the base amount for your filing status.
How Combined Income Works
Combined income is one-half of your Social Security benefits plus all your other income, including tax-exempt interest. The IRS disability benefits FAQ compares this number to your base amount. Your base amount is the income level where benefits may start to become taxable.
Base Amounts by Filing Status
Your filing status is the category you file your return under, such as single or married filing jointly. Each status has its own base amount.
| Filing status | Base amount |
|---|---|
| Single, head of household, or qualifying surviving spouse | $25,000 |
| Married filing separately and lived apart all year | $25,000 |
| Married filing jointly | $32,000 |
| Married filing separately and lived with your spouse | $0 |
Once you’re above your base amount, up to 50% of your benefits are generally taxable. Up to 85% can be taxable if your combined income is more than $34,000, or $44,000 if you’re married filing jointly. These amounts are set by law and aren’t adjusted for inflation, so they also apply to 2026 tax returns filed in early 2027.
If you get both SSI and Social Security, you can read more about taxable Social Security benefits before you file.
Do You Need to File a Tax Return if You Get SSI?
SSI alone doesn’t add to your taxable income. Other income can still mean you have to file.
When Other Income Means You Have to File
If you have wages or other income on top of your benefits, you may have to file even when none of your benefits are taxable. IRS Publication 501 explains the filing requirements. You can also check our answer on filing taxes with SSI for your situation.
Why You Might Not Get Form SSA-1099
Form SSA-1099 reports your net Social Security benefits in Box 5. If SSI is your only Social Security payment, you won’t get one. If you receive Social Security benefits too, you can get your SSA-1099 online.
Tax Refunds and SSI Eligibility
A refund from the earned income credit (EIC) won’t count against your SSI eligibility. The EIC is a federal tax credit that can add to your refund. An EIC refund can’t count as income when your eligibility for federal benefit programs, including SSI, is decided.
It also can’t be counted as a resource, meaning money you have on hand, for at least 12 months after you receive it.
Sources
- IRS, Publication 915
- IRS, Regular Disability Benefits FAQ
- IRS, Publication 596
- IRS, Publication 501
- SSA, Tax form page
- SSA, Research on benefit taxes
