Medicare Open Enrollment 2026: Oct 15–Dec 7 and What to Check
As of September 2026, Medicare Open Enrollment runs from October 15 to December 7, and any change you make takes effect on January 1, 2027. This guide covers what you can switch, what is changing in 2027, and six things to check before the December 7 deadline. Most people skip Open Enrollment because their plan "worked fine this year." That is a risky habit for 2027. Part D costs are going up, a federal subsidy that held down drug plan premiums is ending, and your plan's network or drug list can change without you doing anything. A 30-minute review in October can save you a year of surprises. Contents When Is Medicare Open Enrollment? What You Can Change During Open Enrollment What Is Changing for 2027 6 Things to Check Before December 7 Missed It? The Other Enrollment Windows FAQ When Is Medicare Open Enrollment? Medicare Open Enrollment happens every year from October 15 through December 7 . The dates do not move. Whate...