SSDI and SSI are treated differently on the ACA income calculation

Social Security Disability Insurance (SSDI) counts as income for Affordable Care Act purposes. Supplemental Security Income (SSI) does not. This distinction matters because it affects whether you may have access to for premium tax credits (subsidies) that lower your monthly insurance cost, and it determines which Medicaid rules explore to you.

The ACA uses your Modified Adjusted Gross Income (MAGI) to set income limits for subsidies and Medicaid. SSDI payments are included in that calculation. SSI payments are excluded. If you receive both—which is rare but possible—only the SSDI portion counts.

Your income level determines how much you pay for a marketplace plan. If your SSDI income is below the federal poverty line for your household size, you may not may have access to for subsidies at all. If it is between the poverty line and 400 percent of poverty, you may receive tax credits. Above 400 percent of poverty, you receive no subsidy.

Key Takeaways

  • SSDI payments count as taxable income on your ACA process; SSI payments do not.
  • Your SSDI amount determines your subsidy level—higher SSDI means smaller tax credits or no subsidy at all.
  • If your SSDI income is very low, you may fall into a coverage gap where you do not may have access to for subsidies but also do not meet Medicaid income limits in your state.
  • You must report your expected annual SSDI income when you enroll in a marketplace plan, and changes to your SSDI amount require you to update your process.
  • Medicaid rules for SSDI recipients vary by state—some states use SSI rules (which are more generous), while others use their own income limits.

How SSDI income affects your subsidy amount

When you explore for a marketplace plan through Healthcare.gov or your state exchange, you enter your expected household income for the coming year. The system compares that income to the federal poverty line for your household size and calculates your subsidy as a percentage of the difference between your income and the poverty line.

If you receive $1,200 per month in SSDI, your annual income is $14,400. In 2024, the federal poverty line for a single person is $14,580. Your income is below the poverty line, so you would not may have access to for a subsidy through the marketplace. However, you would likely may have access to for Medicaid in your state—though the income limit varies.

If you receive $2,000 per month in SSDI ($24,000 annually), you are above the poverty line but well below 400 percent of poverty ($59,520 for a single person in 2024). You would may have access to for a substantial subsidy, meaning your monthly premium would be much lower than the full cost of the plan.

The subsidy is not paid to you directly. It is paid to your insurance company on your behalf. If your actual income turns out to be different from what you reported, you may owe back some of the subsidy when you file your taxes, or you may receive a refund.

The coverage gap: when SSDI is too much and too little

Some people with SSDI fall into a gap where they earn too much to may have access to for Medicaid in their state but too little to may have access to for a subsidy. This happens in states that have not expanded Medicaid and set their own income limits below the federal poverty line.

For example, in a non-expansion state, Medicaid might cover only people earning below $800 per month. If you receive $1,200 in SSDI, you do not may have access to for Medicaid. Your income is below the poverty line, so you also do not may have access to for a marketplace subsidy. You would have to pay the full cost of a marketplace plan out of pocket, or go uninsured.

This gap affects roughly 2.2 million people nationally, though the exact number in your state depends on whether your state expanded Medicaid. You can check your state's Medicaid income limit on your state health department website or by calling your local Medicaid office.

SSI recipients and Medicaid: a different path

If you receive Supplemental Security Income (SSI) instead of SSDI, your situation is simpler in one way and more complex in another. SSI payments do not count as income for the ACA. This means your income for subsidy purposes is zero (unless you have other income), so you would may have access to for the maximum subsidy available.

However, SSI recipients are usually already enrolled in Medicaid automatically. SSI may be able to access and Medicaid may be able to access are linked in most states—if you receive SSI, you are covered by Medicaid. You do not need to explore for a marketplace plan because Medicaid is your coverage.

If you lose SSI for any reason, you lose Medicaid at the same time. You would then need to enroll in a marketplace plan or find another source of coverage. That change counts as a life event that lets you enroll outside the annual open enrollment period.

Reporting changes to your SSDI amount

Your SSDI amount can change if Social Security adjusts your benefit—for example, because of a cost-of-living adjustment (COLA), a work incentive program, or a change in your medical condition. When your SSDI amount changes, you must report the change to your health insurance marketplace within 30 days.

You report the change by logging into your Healthcare.gov account (or your state exchange account) and updating your income information. The system will recalculate your subsidy based on your new expected annual income. If your income went up, your subsidy may go down. If your income went down, your subsidy may go up.

If you do not report the change, you may be overpaid or underpaid in subsidies. At tax time, the system reconciles what you received against what you were actually may have access to to. If you were overpaid, you owe the difference back. If you were underpaid, you receive a refund.

SSDI, Medicaid, and Medicare: how they layer

Many people with SSDI eventually become may be able to access for Medicare. After you have been on SSDI for 24 months, you become may be able to access for Medicare Part A (hospital insurance) and Part B (medical insurance) at no cost. This is separate from any marketplace coverage or Medicaid you may have.

If you have both Medicare and Medicaid, Medicaid is your secondary payer—it covers costs that Medicare does not. If you have Medicare and a marketplace plan, the marketplace plan is secondary. You cannot use a marketplace subsidy to pay for a plan if you are already covered by Medicare, so you would typically enroll in Medicare instead.

Your SSDI income still counts toward your Medicaid income limit, even after you become may be able to access for Medicare. If your state uses SSI rules for Medicaid (which some do), your income limit is higher and you are more likely to stay covered.

State-by-state variation in Medicaid rules for SSDI recipients

Medicaid income limits for people with disabilities vary widely by state. Some states use the SSI income limit ($943 per month in 2024, though this varies yearly). Other states use their own limits, which can be higher or lower. A few states use the SSDI benefit amount itself as the limit.

You can find your state's specific Medicaid income limit by contacting your state Medicaid office or visiting your state health department website. The limit matters because it determines whether you can stay on Medicaid if your SSDI increases, or whether you would lose coverage and have to switch to a marketplace plan.

Some states also have "Medicaid buy-in" programs that let people with disabilities keep Medicaid even if their income exceeds the normal limit, as long as they are working. These programs have their own income thresholds and rules.

Frequently Asked Questions

If I get SSDI, do I automatically may have access to for a marketplace subsidy?

Not automatically. Your subsidy depends on your SSDI amount and your state's poverty line. If your SSDI is below the poverty line, you do not may have access to for a subsidy but may may have access to for Medicaid. If it is above the poverty line but below 400 percent of poverty, you may have access to for a subsidy. Above 400 percent of poverty, you receive no subsidy.

What happens to my marketplace plan if my SSDI increases?

Your subsidy will decrease because your income increased. You must report the change within 30 days. Your monthly premium will go up, or you may lose the subsidy entirely if your new income exceeds 400 percent of poverty. You can switch plans during the annual open enrollment period if your current plan becomes unaffordable.

Can I have both Medicaid and a marketplace plan?

Yes, but Medicaid is primary. If you may have access to for Medicaid, you should enroll in it rather than a marketplace plan, because Medicaid has no premiums and usually lower out-of-pocket costs. If you lose Medicaid, you can then enroll in a marketplace plan outside the open enrollment period.

Does SSI count as income for the ACA?

No. SSI payments are excluded from your ACA income calculation. If SSI is your only income, your income for subsidy purposes is zero, and you would may have access to for the maximum subsidy. However, most SSI recipients are already covered by Medicaid and do not need a marketplace plan.

What if my SSDI income is too high for Medicaid but too low for a subsidy?

This coverage gap exists in states that have not expanded Medicaid. You would need to pay the full cost of a marketplace plan out of pocket. Contact your state Medicaid office to confirm your state's income limit, and ask about any disability-specific programs that might help you stay covered.