If December 15 came and went and you did not enroll in a health plan, do not panic — and do not assume you have lost your chance for 2027 coverage. December 15 is an important deadline, but it is not the end of Open Enrollment. Here is exactly what changes, what stays open, and what to do this week. What the Dec 15 deadline actually means ACA Open Enrollment for 2027 runs from November 1, 2026 to January 15, 2027. December 15, 2026 was the deadline to enroll for coverage starting January 1, 2027. Miss it, and your coverage simply starts later — it does not disappear. Your Jan 15 backup: coverage from Feb 1 If you enroll between December 16, 2026 and January 15, 2027, your coverage starts February 1, 2027. That one-month gap is the real cost of missing December 15, so plan for it: keep any current coverage going if you can, avoid letting prescriptions lapse, and do not skip needed care in January without a plan to pay for it. Step 1: Enroll before Jan 15 — do not wait for a reminder The...