You can enroll in or change 2018 Marketplace health insurance right now. The 2018 Open Enrollment Period runs from October 25, 2017 to November 15, 2017, at noon, to sign up online.
IMPORTANT: 2018 Open Enrollment is shorter than in previous years.
Get all of the information that you need here. Deadline to be sure that you are covered is December 15, 2017.