When you’re first eligible for Medicare, you have a 7-month Initial Enrollment Period to sign up for Part A and/or Part B.
For example, if you’re eligible for Medicare when you turn 65, you can sign up during the 7-month period that:
- Begins 3 months before the month you turn 65
- Includes the month you turn 65
- Ends 3 months after the month you turn 65
In most cases, if you don’t sign up for Medicare Part B when you’re first eligible, you’ll have to pay a late enrollment penalty. You’ll have to pay this penalty for as long as you have Part B and could have a gap in your health coverage.