When Does Open Enrollment Start 2024. The annual open enrollment period runs from nov. Obamacare’s open enrollment period for 2024 health plans started november 1, 2023, and ends january 15, 2024, in most states.
However, individuals must enroll by december 15 in most states if they want their insurance coverage to start on january 1. For most states, the 2024 open enrollment period for aca plans is from nov.