The yearly period (November 1 – January 15) when people can enroll in a Marketplace health insurance plan.Outside Open Enrollment, you may still be able to enroll in Marketplace coverage if you have certain life events, like getting married, having a baby, or losing other health coverage, or based on your estimated household income.Job-based plans may have different Open Enrollment Periods. Check with your employer.You can apply and enroll in Medicaid or the Children's Health Insurance Program (CHIP) any time of year.Related contentMarketplace dates and deadlinesNew, lower costs available