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Michigan · ACA Marketplace plans

ACA Marketplace plans in Michigan

Looking for ACA marketplace health insurance in Michigan? Here is how this coverage lane works specifically for Michigan residents, what it costs, and how to get it.

Facts on this page checked Jan 15, 2026. Sources are listed at the end.

How it works here

ACA Marketplace plans, explained for Michigan.

Michigan residents buy ACA Marketplace plans through HealthCare.gov. These are comprehensive plans that cover the ten essential health benefits, cannot deny you for a pre-existing condition, and are the only plans eligible for income-based premium tax credits.

Because Michigan runs a federal marketplace, you enroll at HealthCare.gov. Plans and prices are set at the county level across Michigan's 83 counties, so two neighbors in different counties can see different options.

Michigan expanded Medicaid, so if your income is low you may qualify for Medicaid instead of a subsidized plan — the Marketplace will tell you when you apply.

Michigan residents use HealthCare.gov. The state expanded Medicaid, so applications screen for Healthy Michigan Plan eligibility.

Issuer lineups differ between metro Detroit, West Michigan, and the Upper Peninsula across 83 counties.

Auto-industry and small-business employment patterns mean many households move between employer coverage and Marketplace plans during Special Enrollment Periods.

Michigan facts

Marketplace
HealthCare.gov
Medicaid expansion
Adopted
Uninsured rate
~5.5%

Open enrollment 2027

When Michigan can enroll.

Opens
Nov 1, 2026
Sun
Enroll by, for Jan 1 coverage
Dec 15, 2026
Tue
Last day to enroll
Jan 15, 2027
Fri

Michigan residents enroll at HealthCare.gov. Enroll after Dec 15 and coverage usually starts February 1. Outside this window, a qualifying life event (a move, a new baby, losing other coverage) can open a Special Enrollment Period.

Medicare is different.Medicare’s annual enrollment runs Oct 15 to Dec 7, 2026. For Medicare help, visit our sister site OLYRON Medicare or Medicare.gov.

Dates checked Oct 15, 2026. Sources: HealthCare.gov: dates and deadlines; CMS statement, Jul 27, 2026.

Questions

Good questions, short answers.

When is Open Enrollment in Michigan?

Michigan uses HealthCare.gov. Open Enrollment for 2027 coverage runs Nov 1, 2026 to Jan 15, 2027. Enroll by Dec 15, 2026 for coverage that starts January 1. A qualifying life event (a move, a new baby, losing other coverage) opens a Special Enrollment Period at other times of year.

Are Michigan Marketplace plans subsidized?

Yes — premium tax credits are available based on your income and household size, and many enrollees pay under $100/month.

Do I use HealthCare.gov or a state site in Michigan?

Michigan residents primarily enroll through HealthCare.gov. Start there for plan shopping and subsidy estimates.

Sources

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Before the rush

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