When is open enrollment for marketplace plans?

Last updated September 3, 2026.

Federal marketplace open enrollment runs November 1 to January 15 per HealthCare.gov: enroll by December 15 for coverage starting January 1, or by January 15 for coverage starting February 1. State exchanges may extend slightly. Outside the window you need a Special Enrollment Period from a life event, moving, losing coverage, marriage, a baby, or you qualify for Medicaid or CHIP, which enroll year-round. Watch the traps: auto-renewal without checking the new premium, and missing the first payment, which blocks coverage start.

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