What is the Medicare Part A and Part B initial enrollment period?

Medicare Initial Sign-Up Window

The opportunity to enroll in Part A and/or Part B initially is available during the seven-month frame commencing three months prior to the month of your 65th birthday, encompassing the month you reach age 65, and concluding three months subsequent to your birthday month.

If you elect to enroll in Part A and/or Part B within the initial three months of your Sign-Up Window, in the majority of situations, your coverage will activate on the first day of the month in which you celebrate your 65th birthday. Nonetheless, if the day you were born is the very first of the month, your coverage initiation is adjusted to commence on the first day of the preceding month.

Enrolling and remitting payments for Part A and/or Part B in the month you turn 65 or through the final three months of your Sign-Up Window leads to a delay in the commencement date of your Part B coverage.

Enrolling the month you achieve the age of 65 or during the final trio of months of your Sign-Up Period results in your coverage kicking off on the first day of the month subsequent to your enrollment.