When are important deadlines for 2019 coverage?
November 1, 2018: Open Enrollment starts. This is the first day you can enroll or change your plan for 2019. The start of coverage can be January 1, 2019.
December 15, 2018: Last day to enroll or change plans to start on January 1, 2019. After that, you can enroll or change plans only if you have a life-changing event, like divorce or having a baby. Such events qualify you for a Special Enrollment Period.
January 1, 2019: The start date for those who enroll or change plans by December 15, 2018.