CMS Proposes Verifying Your Eligibility Before Paying Health Subsidies From 2028

The news: The Centers for Medicare & Medicaid Services (CMS) has proposed a rule that would fundamentally change how health insurance subsidies reach you. Under the proposal, released October 23, 2026, health insurance marketplaces would have to verify your eligibility before paying advance premium tax credits or cost-sharing reductions, starting with plan year 2028. If your information cannot be confirmed, your subsidy would be held back until it is, and annual confirmation would effectively end automatic reenrollment for subsidy recipients. The proposal (CMS-9873-P) is described in a CMS press release and a CMS fact sheet, with reporting from Becker's Payer Issues.

The rule implements the Working Families Tax Cuts law (P.L. 119-21), signed in July 2025, following Treasury proposals from October 15, 2026 that codify related eligibility changes. It is a proposal, not a final rule — open for comment for 30 days after Federal Register publication. Here is what it would change, who it touches, and what to do now.

What CMS proposed

The proposal targets the money, not the coverage itself. Today you can receive advance payments of the premium tax credit (APTC) and income-based cost-sharing reductions (CSRs) while a mismatch in your application is being sorted out. From plan year 2028, marketplaces would have to verify the following before providing that financial assistance:

• Household income and family size — the figures that set your subsidy size.
• Citizenship and lawful presence status.
• Residency — that you live where you claim to.
• Other coverage — no non-employer-sponsored minimum essential coverage that would disqualify you.

CMS frames the change as an anti-fraud measure. "Federal subsidies should only go to eligible Americans, not to fraudsters gaming the system," said CMS Administrator Dr. Mehmet Oz. CMS expects roughly 332,500 fewer people on the exchanges each year as a result, per Becker's reporting.

How verification works today — and what would change

Today, the marketplace tries to verify your information electronically against trusted data sources when you apply. If something cannot be verified, you enter an "inconsistency period": you are asked to send documents, but your advance subsidy keeps flowing in the meantime. Only if you miss that deadline are credits generally reduced or ended.

The proposal reverses that sequence. If your information cannot be confirmed electronically, the marketplace would withhold your advance subsidy and cost-sharing reductions until the inconsistency is resolved — with some exceptions, such as certain family-size changes. Three related mechanics soften the edge:

• You can still enroll without the subsidy — paying the full premium until verification completes, with financial assistance applied retroactively if you are then verified.
• A contingent plan option. During open enrollment or a special enrollment period, you could choose a plan that only takes effect if you are cleared for financial assistance, with start dates tied to when verification finishes — retroactive in some cases.
• Early submission from August 1, 2027: you could submit some eligibility information ahead of open enrollment, resolving mismatches before the rush.

The biggest behavioral change is the annual one: enrollees would have to provide or confirm key eligibility information every year to keep receiving financial assistance — essentially ending the automatic reenrollment many subsidy recipients rely on. Miss the confirmation, and your subsidy — not necessarily your plan — is at risk.

Who is affected

The rule reaches every marketplace enrollee receiving financial help — advance premium tax credits, cost-sharing reductions, or both. In practice, the burden will fall hardest on people whose records are most likely to mismatch: households with fluctuating income, recent movers, mixed-status families, and anyone whose employer coverage changed.

It is also part of a broader tightening arc. Our coverage of the IRS's October 2026 proposals explains how subsidy eligibility itself is narrowing for some groups from 2027, and our coverage of CMS's broker-oversight guidance shows stricter checks on the enrollment side too. The direction is consistent: more documentation, more verification, before money moves. For a rough sense of what your subsidy is worth, try our health insurance subsidy estimator.

What it means for your coverage and wallet

Nothing changes for 2027. The proposal would apply from plan year 2028, and it is not final — comments and possible legal challenges could alter it. Open enrollment starting November 1, 2026 runs under current rules, so enroll and claim the help you qualify for.

But from 2028, the risks are real. A household paying, say, $80 a month after subsidies could face the plan's full premium — often several hundred dollars a month — for weeks while a mismatch is resolved. Retroactive help only works if you can float the full premium meanwhile. The quiet danger is not a denial: a missed notice, an unconfirmed renewal, or an unverified income figure silently turning a subsidized plan into a full-price one.

What to do now

1. Do not skip 2027 open enrollment (from November 1, 2026) — current rules still apply, so enroll and secure this year's subsidy.
2. Keep your marketplace account details current. Address, household members, income estimate, and coverage status are exactly the fields the 2028 rule would verify first — update them whenever they change, not just at renewal.
3. Read every marketplace notice. Under the proposal, a data-matching notice is no longer a "send documents when you can" letter — it can gate your subsidy. Treat any verification request as urgent.
4. Keep proof ready: pay stubs, tax returns, immigration documents, and proof of address are the documents most likely to be requested.
5. Watch the comment window: comments are due 30 days after Federal Register publication, and consumer groups' responses will be the best guide to how the final rule lands.

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