Retiring After 65? How to Enroll in Medicare Part B Without a Penalty
If you continued working after age 65 and stayed on your employer’s health insurance, you may have delayed enrolling in Medicare Part B. That’s very common. But when retirement approaches, one of the biggest questions becomes:
“How do I enroll in Medicare Part B after 65 without getting a late enrollment penalty?”
In many cases, people who delayed Part B because they had qualifying employer group health coverage based on current employment can use a Special Enrollment Period (SEP) to enroll later without a Part B late enrollment penalty. The important part is understanding when to apply, what forms you may need and when your employer coverage actually ends.
Can I Delay Medicare Part B If I Work Past 65?
Possibly. If you or your spouse are still actively working and you’re covered by an employer group health plan based on that current employment, you may be able to delay Medicare Part B without a late enrollment penalty.
However, don’t automatically assume that working past 65 means you should delay Medicare.
The size of the employer and the type of health coverage can matter. Medicare specifically recommends checking with the employer providing your health insurance to determine whether you need Medicare Parts A and B when you turn 65.
This is one reason I recommend looking at your individual situation before making a decision.
What Happens When I Retire After 65?
If you’ve delayed Part B because of qualifying employer coverage, retirement generally triggers a Special Enrollment Period. You can generally enroll in Medicare Part B:
- While you’re still covered by the employer group health plan based on current employment, or
- During the 8-month period after the employment or employer group health coverage ends, whichever happens first.
But there’s an important distinction:
Eight months doesn’t mean you should wait eight months.
If your employer coverage ends on October 31 and you want Medicare to take over when that coverage ends, you don’t want to wait several months to deal with Medicare.
Medicare recommends signing up about a month before your employer coverage ends to help avoid a gap in coverage.
How Do I Enroll in Medicare Part B After 65?
If you already have Medicare Part A and delayed Part B because you were working, Social Security now allows eligible people to apply for Part B online during a Special Enrollment Period.
You may also use two important Medicare forms:
- CMS-40B — Application for Enrollment in Medicare Part B This is the application used to enroll in Part B when you already have Part A.
- CMS-L564 — Request for Employment Information
This provides Social Security with evidence that you had employer group health coverage based on current employment and helps establish your eligibility for the Special Enrollment Period. Your employer generally completes its portion of the CMS-L564.
If your employer can’t complete the form, Social Security provides alternatives for documenting your previous employer coverage.
When Should I Apply for Medicare Part B?
Timing is important. If you know the date your employer coverage will end, I generally recommend starting the Medicare process before that coverage terminates rather than waiting until afterward.
For example:
Suppose you’re 68 and plan to retire October 31. Your employer health insurance also ends October 31. You want Medicare Part B to begin November 1.
You should start working on your Medicare enrollment ahead of time so there’s enough time to coordinate the transition. Social Security also allows you to specify the month you want Part B coverage to begin when applying.
Don’t Confuse COBRA With Active Employer Coverage
This is one of the most important Medicare mistakes to avoid.
COBRA does not extend your 8-month Part B Special Enrollment Period.
Your Special Enrollment Period is tied to your active employment or employer group health coverage based on current employment. The clock can begin when employment or qualifying coverage ends even if you elect COBRA afterward.
For example, someone could retire at 67, elect COBRA for 18 months and mistakenly assume they can wait until COBRA ends before enrolling in Medicare Part B.
That could create serious problems.
If you’re Medicare-eligible when employment ends, talk with someone knowledgeable about Medicare before relying on COBRA as your primary coverage.
What Is the Medicare Part B Late Enrollment Penalty?
If you don’t enroll in Medicare Part B when you’re first eligible and you don’t qualify for a Special Enrollment Period, you may face a Part B late enrollment penalty.
The penalty can continue for as long as you have Part B.
That’s why it’s important to determine whether the coverage you had after age 65 actually qualifies you for a Special Enrollment Period rather than simply assuming you’re protected.
What About Medicare Part A?
Many people who work beyond 65 enroll in premium-free Medicare Part A while delaying Part B. But there’s an important consideration if you’re contributing to a Health Savings Account (HSA).
Premium-free Part A can be retroactive for up to six months when someone enrolls after age 65, but not earlier than the month they became eligible. That retroactive coverage can create an issue with HSA contributions.
If you have an HSA and you’re approaching retirement, don’t simply enroll in Medicare Part A without first understanding how the timing could affect your HSA eligibility.
What Happens After I Enroll in Part B?
Getting Medicare Parts A and B is only part of the transition. You’ll then need to decide how you want to receive and supplement your Medicare coverage. Most people will consider one of two general approaches:
Original Medicare + Medicare Supplement + Part D
or
Medicare Advantage
These work very differently. If you choose Original Medicare and a Medicare Supplement plan, you’ll generally also want a separate Medicare Part D prescription drug plan. If you choose Medicare Advantage, many plans include prescription drug coverage.
This is where I help my clients compare the available options based on their doctors, prescriptions, preferred pharmacies, budget and travel needs. You can schedule a meeting HERE!
Your Medigap Open Enrollment Period Is Important
There’s another reason Part B timing matters. Your six-month Medigap Open Enrollment Period generally begins the first month you’re 65 or older and enrolled in Medicare Part B. During this period, you have important federal protections when purchasing Medicare Supplement insurance.
So if you’re 68 and enrolling in Medicare Part B for the first time after leaving employer coverage, you can still have your Medigap Open Enrollment Period based on when your Part B begins. That’s particularly important for someone who wants a Medicare Supplement such as Plan G or Plan N.
Example: Retiring at 68 in San Diego
Here’s a common situation I see: You’re 68 years old and have continued working for an employer in San Diego. You enrolled in Medicare Part A at 65 but delayed Part B because you remained covered under your employer’s group health plan. Now you’re retiring.
We would want to coordinate several things:
- Your employer coverage termination date.
- Your Medicare Part B effective date.
- Your Medicare Supplement or Medicare Advantage effective date.
- Your Part D prescription drug coverage, if needed.
- Your doctors and medical groups.
- Your prescriptions and preferred pharmacy.
When these pieces are handled in the right order, the transition from employer coverage to Medicare can be much easier.
Do I Need to Wait Until I Retire to Apply for Part B?
Not necessarily. If you’re eligible for the Special Enrollment Period, you can enroll while you’re still working and covered by the employer group health plan.
In fact, if you know you’re retiring soon, applying before your employer coverage ends can help prevent a gap between employer insurance and Medicare.
What If My Spouse Is Still Working?
You may also be able to delay Part B if you’re covered under your spouse’s employer group health plan based on your spouse’s current employment. Again, the details of the employer coverage matter. Before delaying Medicare, verify that the coverage qualifies and understand how the employer plan coordinates with Medicare.
Retiring After 65? Get the Timing Right
If you’re retiring after 65, Medicare doesn’t necessarily have to be complicated. The biggest mistake is waiting until the last minute and assuming everything will automatically transition from your employer insurance to Medicare. Ideally, you’ll know ahead of time:
- When your employer coverage ends
- When Medicare Part B should begin
- Whether you want Medicare Supplement or Medicare Advantage
- Which Part D plan works with your prescriptions, if needed
- Whether your doctors participate in the coverage you’re considering
I help people throughout San Diego County make this transition and compare their Medicare options.
If you’re retiring soon and need to enroll in Medicare Part B after 65, schedule a Medicare consultation with me and we’ll go through the process together.
Frequently Asked Questions
Can I enroll in Medicare Part B after age 65 without a penalty?
Yes, in many cases. If you delayed Part B because you had qualifying employer group health coverage based on your or your spouse’s current employment, you may qualify for a Special Enrollment Period and avoid the Part B late enrollment penalty.
How long do I have to enroll in Part B after I retire?
The Special Enrollment Period generally lasts 8 months after the employment or employer group health coverage ends, whichever occurs first. However, waiting can create a gap in coverage, so it’s usually better to coordinate Part B before your employer insurance ends.
Does COBRA count as employer coverage for delaying Medicare Part B?
COBRA does not extend the Part B Special Enrollment Period tied to active employment. The 8-month period can begin when employment or qualifying job-based coverage ends even if you elect COBRA.
What forms do I need to enroll in Part B after 65?
If you already have Part A and you’re enrolling in Part B after employer coverage, the primary forms are generally CMS-40B for Part B enrollment and CMS-L564 to document employer coverage. Eligible individuals may also be able to complete the Part B Special Enrollment Period application online.
Can a Medicare broker help me enroll in Medicare Part B?
Your actual Medicare Part A and Part B enrollment is handled through the Social Security Administration. I can help you understand the process and timing, give you instructions and if you like, meet with and walk you through the process then help you compare your Medicare Supplement, Medicare Advantage and Part D options once you’re making the transition.