Future Resource Series · Guide 06

Turning 65: Medicare Countdown Checklist

A planning checklist to help you gather the right information, understand the timing, and know which official Medicare and Social Security resources to use as age 65 approaches.

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Guide 06

Know your core enrollment window

Medicare says the Initial Enrollment Period generally lasts 7 months: it begins 3 months before the month you turn 65 and ends 3 months after your birthday month.

□ 65th birthday

□ Initial Enrollment Period begins

□ Birthday month

□ Initial Enrollment Period ends

□ Currently receiving Social Security?

□ Current employer coverage?

□ Spouse current employer coverage?

□ Retiree coverage?

□ COBRA coverage?

□ HSA contributions?

□ Prescription coverage now?

Guide 06

12 months before 65

Flag coordination issues early.

□ Learn the basic parts of Medicare.

□ Ask employer or spouse's employer how coverage coordinates with Medicare.

□ Ask whether current prescription coverage is creditable.

□ Identify whether you will still be actively employed at 65.

□ If you have retiree coverage, ask what it requires once Medicare-eligible.

□ If you have COBRA, do not assume it extends the Part B enrollment deadline.

□ If contributing to an HSA, flag possible retroactive Part A coverage.

Guide 06

HSA checkpoint

Medicare enrollment can affect HSA eligibility.

Once enrolled in Medicare

IRS guidance says HSA contribution eligibility ends beginning with the first month enrolled in Medicare.

Retroactive Part A

Premium-free Part A can be retroactive when someone enrolls after 65, which can create excess HSA contributions.

If delaying Medicare

Current-employment coverage may affect enrollment timing. Coordinate HSA timing with Medicare/SSA and a tax professional.

Verify, don't guess

The correct stop-contribution date depends on when Part A begins and whether coverage is retroactive.

Trusted resources

Verify important details at the source.

Rules and deadlines can change. These links take you directly to official sources.

Medicare.gov - When to sign upOfficial enrollment periods.Medicare.gov - Coverage startOfficial effective-date rules.SSA - Sign up for MedicareOfficial application.IRS - Publication 969HSA guidance.Medicare & You 2026Official Medicare handbook.

Need help applying this to your situation?

Use the guide first. If you still need help sorting through coverage paths, doctors, prescriptions, timing, and tradeoffs, schedule a complimentary conversation.

Schedule a Coverage Conversation

Educational use only. This guide is general information, not tax, legal, medical, or Medicare advice. Verify current rules and plan documents. Scott Saghirian is a licensed insurance advisor and is not a government agency or Medicare representative.