Nundina › Discover calendars › Health Insurance Open Enrollment calendar › 🏥 ACA Marketplace Open Enrollment Ends (Federal Marketplace)🏥 ACA Marketplace Open Enrollment Ends (Federal Marketplace)15 January 2028Last day of open enrollment for 2028 healthcare.gov coverage under the standing federal regulation. The government has appealed the ruling that struck down the shortened window, so confirm on healthcare.gov closer to the date. Verified 2026-08.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 January 2027 - 🏥 ACA Marketplace Open Enrollment Ends (Federal Marketplace)

15 October 2027 - 💊 Medicare Annual Enrollment Period Begins