Open enrollment is the once-a-year window when you can enroll in or change your coverage. A special enrollment period (SEP) lets you enroll outside that window after a qualifying life event, such as marriage, a new baby, or losing other coverage, usually within 30 days (employer plans) or 60 days (the Marketplace).
Open Enrollment Periods (OEPs)
Open enrollment is the once-a-year window to enroll in or change your coverage. These FAQs explain how open enrollment works for employer plans.