Nundina › Discover calendars › Health Insurance Open Enrollment calendar › 🏥 ACA Marketplace Open Enrollment Ends (Federal Marketplace)🏥 ACA Marketplace Open Enrollment Ends (Federal Marketplace)15 January 2027Last day of open enrollment for 2027 healthcare.gov coverage. The CMS rule that would have closed enrollment on December 15 was vacated in court in June 2026, so the usual January 15 close still applies; state-based exchanges may run later. Verified 2026-08 via healthinsurance.org and reporting on the ruling.Health Insurance Open Enrollment calendarMore from this calendar

1 November 2026 - 🏥 ACA Marketplace Open Enrollment Begins

7 December 2026 - 💊 Medicare Annual Enrollment Period Ends

15 December 2026 - 🏥 ACA Marketplace Deadline for January 1 Coverage

15 October 2027 - 💊 Medicare Annual Enrollment Period Begins

1 November 2027 - 🏥 ACA Marketplace Open Enrollment Begins