Open enrollment for 2027 health coverage begins November 1, and in the states that use HealthCare.gov, it will run all the way to January 15. That correction matters, because a federal rule finalized last year would have closed the federal window on December 15 instead.
A judge vacated that provision in June, and the Centers for Medicare and Medicaid Services confirmed the schedule in writing. In an August statement on the litigation, CMS Deputy Administrator Peter Nelson wrote that open enrollment at the federally facilitated exchange will begin November 1, 2026, and end January 15, 2027.