Working past 65 doesn’t necessarily mean you have to leave your employer health plan and move immediately to Medicare.
If you or your spouse is still working and you have health insurance through that current employment, you may be able to delay some parts of Medicare without a late-enrollment penalty.
But there isn’t one answer for everyone. Your employer’s size, the type of coverage you have, whether you contribute to an HSA, and when you plan to retire can all affect what you should do.
If you’re 65 or older and covered by a group health plan through your or your spouse’s current employment, you may be able to delay Medicare Part B.
One of the first things to determine is who is supposed to pay first: Medicare or your employer plan?
For many people, employer size is the starting point.
One of the most important questions is how many employees your employer has.
If your employer has 20 or more employees: Generally, the employer group health plan pays first and Medicare pays second. This can make delaying Part B reasonable for some people who have good employer coverage.
If your employer has fewer than 20 employees: Generally, Medicare pays first and the employer plan pays second. That makes enrolling in Medicare at 65 much more important.
Don’t assume that having an insurance card from your employer means you can safely delay Medicare. Ask your employer’s benefits administrator how your particular plan coordinates with Medicare.
Many people qualify for Part A without paying a monthly premium, so enrolling at 65 can seem automatic.
But there’s an important exception: if you’re contributing to a Health Savings Account (HSA), don’t enroll in Medicare without understanding the HSA rules first.
Once you’re enrolled in Medicare, you can no longer contribute to an HSA. And if you enroll in Medicare after age 65, premium-free Part A can generally be retroactive for up to six months, but not before the month you became eligible for Medicare.
That means the decision isn’t simply, “Part A is free, so why wouldn’t I take it?”
If you qualify to delay Part B because you’re covered through current employment, you can generally enroll later through a Special Enrollment Period.
Your Special Enrollment Period continues while you’re covered by the employer group health plan through current employment and generally extends for 8 months after the employment or job-based coverage ends, whichever happens first.
But don’t automatically wait eight months.
If you want Medicare to begin as your employer coverage ends, you should arrange your Part B enrollment before that coverage terminates.
COBRA isn’t the same thing as coverage based on current employment.
Your 8-month Medicare Part B Special Enrollment Period generally starts when the employment or job-based coverage ends — even if you elect COBRA afterward.
Retiree health coverage can also work differently from active employee coverage.
If you’re approaching 65 with COBRA or retiree insurance, don’t assume the same rules that apply to someone actively working apply to you.
This deserves its own planning decision.
Once Medicare coverage begins, you can no longer contribute to an HSA.
For someone enrolling after 65, retroactive Part A coverage can make the timing particularly important.
That doesn’t mean you lose the money already accumulated in your HSA. The issue is making new contributions after Medicare coverage begins.
Before enrolling in Medicare, coordinate your Medicare effective date, HSA contributions, planned retirement date, employer coverage, and Social Security application.
Coverage through your spouse’s current employment can also allow you to delay Part B in many situations.
Again, employer size and the specific group health plan matter.
This means spouses don’t necessarily transition to Medicare at the same time. One spouse might already be on Medicare while the other remains on employer coverage.
There isn’t a rule saying a married couple has to make the same Medicare decision at the same time.
Not always. If you have qualifying health coverage through your or your spouse’s current employment, you may be able to delay Medicare Part B without a late-enrollment penalty. Employer size and the type of coverage you have matter.
No. COBRA is not considered coverage based on current employment for purposes of delaying Part B. Your Medicare Special Enrollment Period generally begins when the employment or active job-based coverage ends, even if you continue coverage through COBRA.
Yes, in many cases. If you’re covered by a group health plan through your spouse’s current employment, you may be able to delay Medicare Part B without a late-enrollment penalty. The employer’s size and the type of coverage still matter.
Yes, if you remain eligible to contribute to an HSA and you are not enrolled in any part of Medicare. Once Medicare coverage begins, you can no longer contribute to an HSA. If you enroll in Medicare after age 65, Part A can be retroactive for up to six months, so the timing of your final HSA contributions needs careful planning.
When you retire and your employer coverage ends, you may qualify for a Medicare Special Enrollment Period. Planning ahead can help your Medicare coverage begin when your employer coverage ends and avoid an unintended gap.
You generally have an 8-month Special Enrollment Period to enroll in Part B after your employment or coverage based on current employment ends, whichever happens first. Waiting until the end of that period can create a gap in coverage, so it is usually better to plan your Medicare enrollment before your employer coverage ends.
Yes. If your employer has 20 or more employees, the employer group health plan generally pays first and Medicare pays second. With fewer than 20 employees, Medicare generally pays first. This distinction can be important when deciding whether you can safely delay Medicare.
Yes. You can have Medicare and employer health coverage at the same time. Which coverage pays first depends on factors including employer size and the type of employer coverage you have.
I’m David Lowe, RSSA® — Registered Social Security Analyst® and a licensed Medicare agent.
I help people who are approaching 65, working beyond 65, or preparing to leave employer coverage understand how Medicare fits into their broader Medicare and Social Security planning.
You work directly with me. No call center. No rotating team of agents.
My goal is to help you understand your options and timing before you make a Medicare decision that may be difficult or expensive to undo.
I am not employed by Medicare or the Social Security Administration.
Medicare enrollment rules can vary depending on your employment status, employer size, current health coverage, HSA participation, and other circumstances.
Before delaying Medicare, it is important to understand how the rules apply to your specific employer coverage.
For official Medicare enrollment information, you should also review Medicare.gov.
I provide Medicare guidance in the states where I am licensed:
If you are working past 65, your Medicare decisions can depend on your employer coverage and individual circumstances. I can help you understand the Medicare rules that apply to your situation and how they fit with your broader retirement plans.
If you’re approaching 65, still working past 65, or preparing to leave employer health coverage, you don’t have to figure out the Medicare timing rules by yourself.
We can look at your employer coverage, Medicare enrollment timing, HSA considerations, and retirement plans together before you make a decision.
David Lowe, RSSA®
Registered Social Security Analyst®
Licensed Medicare Agent
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