Initial Enrollment Period Calculator

Select your Date of Birth*

Your Initial Enrollment Period:

Around your 65th birthday, you'll have a 7-month window of time when you can sign up for Medicare. It's called your Initial Enrollment Period — or IEP for short. Your IEP includes your 65th birthday month, the 3 months before and the 3 months after. If, however, your birthday is on the 1st of the month, then your IEP is determined as though you were born the month before.

Note: If you miss your Initial Enrollment Period, Medicare offers a General Enrollment Period (GEP, it starts from January 1 to March 31 every year.) for those who did not sign up around their 65th birthday. You could face late enrollment penalties if you wait too long to sign up, and don’t qualify for a Special Enrollment Period. More information can be found on

**This tool is an estimate only and may not be exact.

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