What Happens to Medicare When I Retire?

If you've been delaying Medicare because you had coverage through work, retirement is usually the moment that changes. Here's what typically happens next.

Your Special Enrollment Period Begins

Once your employer coverage ends, you typically have an 8-month Special Enrollment Period to sign up for Medicare Part B without facing a late enrollment penalty. This window starts either when your employment ends or when the group coverage ends, whichever comes first.

Deciding Between Medicare Advantage and Medigap

This is also the point where many people choose between a Medicare Advantage plan and a Medicare Supplement (Medigap) policy. Your Medigap enrollment rights are strongest during specific windows, so timing matters if you want guaranteed-issue coverage without medical underwriting.

Don't Forget Prescription Drug Coverage

If your employer plan included prescription drug coverage, check whether it was considered "creditable" — if not, you'll want to enroll in a Part D plan during your enrollment window to avoid a late penalty.

Retirement timing can get complicated fast.

Written by Rafael Stella, a licensed Medicare insurance agent helping people throughout California navigate this transition at no cost — see the About page to learn more, or reach out before your last day of coverage.