Open Enrollment 2025 Aca Dates. Open enrollment for 2025 aca marketplace plans will begin on november 1, 2024, and last through january 15, 2025. Last day to enroll in or change plans for coverage to start january 1.
Important dates include november 1, 2024 (when open enrollment begins), december 15 (for january 1 coverage) and january 15 (final day of open. Looking for the open enrollment dates for the 2025 coverage year in your state?