Medicare at 65 While Still Working

Medicare at 65 While Still Working

Still working at 65? You may not need the same Medicare strategy as someone who is retired. The right answer can depend on employer size, whether your coverage is based on current active employment, whether you contribute to an HSA, and whether a spouse or dependents still rely on the employer plan.

Why this page matters

Many people assume that turning 65 automatically means they should enroll in every part of Medicare right away. Others assume the opposite and believe employer coverage means Medicare can always wait. In reality, neither assumption is safe. A person who is still working may need Medicare immediately, may be able to delay Part B without penalty, or may want to compare employer coverage against Medicare for value and flexibility.

The first question to ask: 

What type of coverage do you have?

The answer starts with how you are insured today. Coverage based on current active employment is treated differently from COBRA, retiree coverage, and many individual policies. That distinction is one of the most important parts of the Medicare decision at age 65.

Working for a small employer?

For many workers at employers with fewer than 20 employees, Medicare is primary at age 65. That means the employer plan may pay second. In this situation, delaying Medicare can create claim issues, coverage confusion, and long-term penalties. This is one reason employees of small businesses should review Medicare early instead of assuming the group plan solves the issue.

Working  for a Large employer?

For many workers covered by an employer with 20 or more employees, the group plan may remain primary while the person is actively working. In that situation, some people choose to delay Part B because they may qualify for a Special Enrollment Period later. Even then, it still makes sense to review Medicare at 65 because lower costs, better provider flexibility, or reduced out-of-pocket exposure may make Medicare worth considering now.

Why Part A and Part B are different decisions

Part A is often premium-free for people who have enough work history, so some still-working employees enroll in Part A and delay Part B. But Part B has a monthly premium, and not everyone needs to take it at 65. The right decision depends on employer size, current employment status, HSA contributions, and the way the employer plan coordinates with Medicare.

The HSA issue

Health Savings Accounts deserve special attention. Once Medicare enrollment begins, new HSA contributions usually must stop. This includes situations where Medicare enrollment is retroactive. Anyone contributing to an HSA should review timing carefully before enrolling in any part of Medicare.

COBRA and retiree coverage

COBRA is not the same as active employer coverage

This is a major point of confusion. COBRA and retiree coverage do not function the same way as coverage tied to current active employment. People who delay Part B because they assume COBRA or retiree coverage protects them the same way can face penalties or delayed access to coverage.

When should you review your options?

Ideally, review your options before your Initial Enrollment Period begins - about three months before the month you turn 65. That gives you time to compare costs, confirm how your employer plan coordinates with Medicare, review drug coverage, and avoid rushed decisions.

What should you compare?

Look at monthly payroll deductions, deductibles, copays, prescription costs, provider access, out-of-pocket risk, HSA usage, and whether a younger spouse or dependents still need employer coverage. The best Medicare decision is usually the result of comparing total value, not just asking whether you can delay enrollment.

How we can help

Employer Medicare Resources helps employees, business owners, and HR teams understand the real-world Medicare questions that come up at age 65. We help clarify when Medicare may be primary, when delaying Part B may make sense, what to watch for with small-group and large-group coverage, and how to avoid common enrollment mistakes.