Turning 65 and Still Working? Check This Before Delaying Medicare

Separate the Part B question from the Part D question

Part B timing depends on whether you have qualifying group health plan coverage based on current employment, your own or, in some cases, a spouse’s. Medicare advises people to ask the employer whether they need Part A and Part B when they turn 65. Retiree coverage, COBRA, and arrangements not offered to all employees can follow different rules.

Creditable coverage is a different term used for prescription drug coverage. It matters for avoiding a Part D late-enrollment penalty, not as a substitute for checking whether you can delay Part B. Ask the benefits administrator for written information about both questions.

• Is the coverage based on current employment, not retirement or COBRA?
• What does the plan pay when the employee or spouse is Medicare-eligible?
• Will the employer provide written information about Part B enrollment timing and whether drug coverage is creditable for Part D?
• What is the exact date employment or coverage will end?

The 8-month Special Enrollment Period can begin sooner than expected

For people who qualify, the Special Enrollment Period to sign up for Part B begins when employment ends or group health coverage ends, whichever happens first. Medicare says it lasts eight months. Choosing COBRA does not extend that Part B Special Enrollment Period, so it should not be treated as a reason to wait.

The decision should happen before a retirement date is final. A coverage gap can be far harder to correct after the fact than a simple advance review.

An HSA can change the Part A conversation

Once a person is enrolled in Medicare, HSA contributions generally have to stop. If someone delays applying for Medicare and enrollment is later backdated, contributions made during the retroactive coverage period can become excess contributions. The IRS specifically flags this issue for people who delay enrollment.

Before taking Part A, Social Security benefits, or a retirement step that could trigger Medicare, coordinate with the employer benefits team and a qualified tax adviser. This is not a detail to guess about.

Keep a written transition plan

A good plan identifies the current coverage, the final day it is active, the Medicare Parts you will enroll in, drug-coverage status, and the action dates for the health-plan choice. Once Part A and Part B dates are settled, we can help compare the Medicare paths around doctors, prescriptions, expected care and budget.

If you keep employer coverage, it can still make sense to understand Medicare’s rules and any uncovered needs before you retire. The goal is a clean handoff, not a rushed decision after coverage has already changed.