Marketplace exchanges would have to check income, citizenship or immigration status, other coverage and residence before paying anyone a premium subsidy, under a rule the Centers for Medicare & Medicaid Services proposed on Oct. 23 that would make Marketplace exchanges verify income, citizenship or immigration status, other coverage and residence before paying a premium subsidy. It is a proposal, not a rule in force, and the changes would apply starting with plan year 2028. Comments are due 30 days after the proposal is published in the Federal Register.
What would the rule require before a subsidy is paid?
The agency’s fact sheet on the proposed rule, CMS-9873-P, says exchanges would have to verify four things before providing advance premium tax credits or income-based cost-sharing reductions: household income and family size; citizenship, national status or eligible immigration status; eligibility for or enrollment in other qualifying coverage; and place of residence.
Exchanges could no longer pay financial assistance during an inconsistency period, the stretch when those facts cannot be confirmed electronically. A consumer could still enroll in a plan without financial assistance while verification is pending.
Why does CMS say it is needed?
The agency says the rule implements the Working Families Tax Cuts legislation, Public Law 119-21, specifically section 71303, which changes who is eligible for the premium tax credit. CMS says the changes could reduce improper or fraudulent enrollments and lower the chance that consumers must repay excess subsidy at tax time, though it gives no savings estimate and no dollar figure.
CMS Administrator Dr. Mehmet Oz said in the agency’s announcement that “federal subsidies should only go to eligible Americans, not to fraudsters gaming the system.” Treasury Secretary Scott Bessent said in the same release that taxpayers “should not be forced to subsidize health care for people who are ineligible under federal law.”
For a household on a subsidized Marketplace plan, the practical question is what proof would be needed at renewal. Pay stubs or tax records showing household income, documents showing citizenship or immigration status, proof of any job-based or other coverage, and something showing the current address are the categories the proposal names. Nothing has to be submitted under this rule yet, but gathering the paperwork costs nothing and is useful whatever the final rule says.
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What would change for people already enrolled?
The biggest change for current enrollees is the annual renewal. Under the proposal, a person who receives financial assistance would be re-enrolled with it only if they return to confirm eligibility and the exchange re-verifies them. Anyone who does not return would be automatically re-enrolled without financial assistance, which for a subsidized household can mean a much larger monthly premium.
The rule would also create a verification period starting each Aug. 1 for new and returning applicants to submit information before open enrollment, with the first window opening Aug. 1, 2027, for 2028 coverage. A consumer could choose a plan during open enrollment or a special enrollment period that takes effect only if the person is later found eligible for assistance, and assistance would be paid retroactively for months of an inconsistency period if an already-enrolled consumer is later verified.
Which events would be exempt from the new checks?
The proposal would let exchanges waive the new verification requirements for special enrollment periods triggered by a birth, adoption, marriage, or the loss of a dependent through divorce, separation or death, if the exchange chooses to allow it. During those periods, financial assistance would be based on the information the applicant attests to on the application.
The rule also covers mid-year changes. After a voluntary change in circumstances that affects eligibility, an exchange would have to maintain or reduce financial assistance during the inconsistency period, and could no longer delay effective dates beyond the first of the month after the redetermination when no special enrollment period applies.
What is still undecided, and where to follow it?
This is a notice of proposed rulemaking, so the text can change before it is finalized, and nothing takes effect until a final rule is published. CMS is asking for comment on how to strengthen verification of family size and residency, including which data sources to use, while limiting the burden on consumers, states and federal exchanges. The fact sheet cites Federal Register public inspection document 2026-21891, and it says Treasury issued proposed regulations on Oct. 15 to codify the same tax credit changes.
The agency has not stated an exact comment deadline beyond the 30-day period, and the date will be set by the Federal Register publication date. Updates appear on the CMS newsroom, and current Marketplace enrollees can compare plans and see their present eligibility at HealthCare.gov. State-based exchanges may adopt the same changes, so households in those states should watch their own exchange’s notices.
Is your paperwork ready if proof of eligibility tightens?
Stricter proof for one benefit is a reminder that eligibility for others is also decided by the numbers on the page. A household that never checked the income limits can miss programs it could already use, while the paperwork rules keep moving.
“Claim Every Benefit” lists the 2026 limits, one line per program, for nine programs that include Medicare Savings Programs, Extra Help, state drug programs, SNAP at 60+ and SSI after 65. It also has an application tracker, so the documents and dates sit in one worksheet.
See the 2026 limits and tracker in Claim Every Benefit →
This article was produced with AI assistance and edited for accuracy against the sources linked above.
David M. Keller is a finance writer based in Columbus, Ohio, covering personal finance and consumer-focused economic topics. He earned his degree in journalism from Ohio University and began his career reporting on local business and economic trends for a regional media outlet. Since then, he has contributed to a variety of online publications, focusing on clear, practical coverage of topics such as cost of living, debt, and everyday financial decision-making.
