What is my Medicare Initial Enrollment Period?

Enrollment
Last updated: 
April 10, 2026
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The short answer

Your Medicare Initial Enrollment Period is a 7-month window around your 65th birthday when you can first sign up for Medicare Parts A and B. Missing it can mean late enrollment penalties and gaps in coverage.

The full explanation

The Initial Enrollment Period, often called the IEP, lasts seven months total. It starts three months before the month you turn 65, includes your birthday month, and ends three months after. So if you turn 65 in June, your window runs from March through September.When you sign up within that window matters. If you enroll in the three months before your birthday month, your coverage can start the month you turn 65. If you wait until your birthday month or after, your start date gets pushed back. Waiting until the final months of your IEP can mean a two or three month delay before coverage actually begins.Most people who are already receiving Social Security benefits get enrolled in Part A and Part B automatically. If that's you, you'll get a Medicare card in the mail before you turn 65. If you're not yet collecting Social Security, you'll need to sign up yourself, through Social Security's website, by phone, or in person.Part A (hospital coverage) is premium-free for most people, so there's little reason to delay it. Part B (outpatient and doctor coverage) has a monthly premium. Some people with employer coverage through a current job choose to delay Part B, but that decision has rules and consequences worth understanding before you make it. Talking with a licensed Medicare agent before your IEP closes is a smart move.

Related Medicare Resources

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In 

 specifically

Utah residents can get free one-on-one help understanding their enrollment options through the Aging and Disability Resource Centers (ADRC), which is Utah's State Health Insurance Assistance Program (SHIP). They can walk you through your timeline and help you avoid costly mistakes.

What this means for you

For you, this means the months around your 65th birthday are the most important window to pay attention to, and acting before it closes can protect you from penalties and coverage delays.

Related Questions

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