Most people enroll in Medicare during their Initial Enrollment Period (IEP), which begins three months before their 65th birthday, includes their birthday month, and continues for three months after.

Enrolling during this window helps ensure coverage starts on time and helps avoid penalties.

The Initial Enrollment Period is the seven-month window when most people first become eligible for Medicare.

It includes:

• 3 months before your 65th birthday
• your birthday month
• 3 months after your birthday month

Enrolling early can help coverage begin without delays.

Some people are automatically enrolled in Medicare if they are already receiving Social Security or Railroad Retirement benefits.

Others must sign up themselves through the Social Security Administration.

If you miss your Initial Enrollment Period and do not qualify for a Special Enrollment Period, you may have to wait until the General Enrollment Period to enroll.

This can lead to delayed coverage and potential penalties.

The General Enrollment Period runs each year from January 1 to March 31.

People who missed their initial enrollment window can sign up during this time, with coverage typically starting later in the year.

The Annual Enrollment Period (AEP) runs from October 15 through December 7 each year.

During this period, Medicare beneficiaries can:

• change Medicare Advantage plans
• switch between Original Medicare and Medicare Advantage
• change prescription drug plans

Changes take effect January 1 of the following year.

This enrollment period runs from January 1 through March 31 each year.

During this time, people already enrolled in a Medicare Advantage plan may:

• switch to another Advantage plan
• return to Original Medicare

Yes, many people delay certain parts of Medicare if they have creditable employer coverage through a current job.

However, the rules depend on:

• employer size
• the type of health plan
• whether the coverage is considered creditable

A Special Enrollment Period (SEP) allows individuals to enroll in Medicare outside normal enrollment windows if certain life events occur.

Common qualifying events include:

• losing employer health coverage
• moving out of a plan’s service area
• qualifying for certain financial assistance programs

Many advisors recommend beginning your Medicare research at least 6 months before your 65th birthday.

This provides time to:

• understand coverage options
• compare plans
• avoid rushed decisions during enrollment.

Yes, Medicare beneficiaries may change plans during specific enrollment periods such as the Annual Enrollment Period.

However, certain coverage types, such as Medicare Supplement plans, may require medical underwriting depending on timing.

Many people choose to enroll three months before their 65th birthday to ensure their coverage begins on time.

Applying early can help prevent gaps in healthcare coverage.

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