For most people who get health insurance through an employer, when is open enrollment typically held?

Employer-sponsored open enrollment periods are typically held once per year, usually in the fall for coverage that begins January 1st. The specific window varies by employer but often runs 2 to 4 weeks. Outside of open enrollment, you can only change your health coverage if you experience a qualifying life event such as marriage, divorce, birth of a child, or loss of other coverage. For ACA marketplace plans, open enrollment runs from November 1st through January 15th in most states.