A Southwest Michigan Guide to Medicare
For many of our neighbors in Kalamazoo, Battle Creek, and Marshall, your 65th birthday isn’t the “finish line” it used to be. Many of you are choosing to stay in the workforce, which brings up a critical—and often expensive—question: Do I actually need to sign up for Medicare if I still have health insurance through my job?
If you don’t get the answer right, you could face “late enrollment penalties” that stay with you for the rest of your life.
The Rule of 20: Does Your Employer Size Matter?
The first thing you need to check is the size of the company providing your insurance.
One of the most important questions to ask is if your employer requires you to take Medicare Parts A and B when you turn 65. This can be the case based upon the size of the company that provides your health insurance in the year you hit your 65th birthday.
- Small Businesses (19 or Fewer Employees): Generally, these companies can require you to enroll in Medicare Parts A and B to remain covered. In this case, Medicare becomes your primary insurance, and the company plan acts as secondary.
- Larger Companies (20+ Employees): These employers are required to continue offering the same health insurance to you and your spouse as they do to younger workers. You have the option to decline the group plan for Medicare, but the employer cannot force you to switch.
“We see this a lot with local small business owners and their long-term employees,” explains SWMI Financial CEO Chuck Henrich. “If you’re at a smaller shop in downtown Marshall or a medical office in Kalamazoo,”. “Don’t assume your private insurance will just keep humming along after 65. If the insurer finds out you were eligible for Medicare and didn’t sign up, they may refuse to pay their portion of a bill. That’s a ‘Reality Check’ nobody wants.”
What about the situation where your employer contributes some, but not all of the monthly premium costs of your health insurance?
If you purchase private health insurance through an employer payment, you might find that the private insurers may reduce the amount they pay for services once you’re eligible for Medicare at age 65. Medicare may also not work with your insurance at all. So, if you sign up for Medicare Parts A and B, they will pay your medical bills first, before your private health insurance will potentially assist in paying any uncovered costs.
“Be careful with COBRA,” says Chuck. Many folks think COBRA counts as ‘active’ coverage—it doesn’t. If you retire, take COBRA, and wait 10 months to sign up for Medicare, you will likely face a lifelong late-enrollment penalty. We help you map out these dates so you never have a gap in coverage or a surprise bill from the government.”
The HSA Tax Trap
If you have a High Deductible Health Plan with a Health Savings Account (HSA), you must be extremely careful.
- The Conflict: Once you enroll in any part of Medicare (even just the premium-free Part A), you can no longer contribute to an HSA.
- The 6-Month Lookback: If you sign up for Medicare after 65, your Part A coverage can be backdated up to six months.
According to Chuck, “This is the biggest ‘gotcha’ we see. If you don’t stop your HSA contributions at least six months before you apply for Medicare or Social Security, the IRS may hit you with tax penalties. It’s a technicality that catches a lot of smart people off guard.”
The Part A Strategy: The Premium-Free Win
Under most circumstances, it’s best to enroll in Medicare Part A (Hospital Insurance) exactly when you turn 65, even if you keep your employer coverage.
- Why? If you or your spouse paid Medicare taxes for at least 10 years (40 quarters), Part A is premium-free. It acts as a “backup” to your employer plan at no extra cost.
- The Warning: If you don’t qualify for premium-free Part A, the monthly cost can be as high as $505.
The Part B Decision: Watch the Clock
Unlike Part A, Medicare Part B (Medical Insurance) comes with a monthly premium for everyone. If you have “creditable” coverage from a large employer, you might be able to delay Part B without penalty. However, if your private insurer reduces what they pay once you hit 65, having Part B as your primary payer becomes essential.
Under most circumstances, it’s best to enroll in Medicare Part A at age 65, even with employer coverage because it’s premium-free as long as you or your spouse have paid at least 40 quarters of Medicare taxes. If you don’t qualify for premium-free Part A, you may pay either $278 or $505 each month. Don’t forget, there are potential penalties for signing up late.
With Medicare Part B, do your homework with the size of your current employer to gauge whether or not you have to sign up for Part B to avoid penalties or to make sure you have the insurance coverage you need to cover health care expenses. Check to be sure your policy covers providers you already see to select the best plans for your unique coverage.
The Main Street Math: Comparing the Costs
Don’t stay on your employer plan just because it’s familiar. Often, Medicare provides better coverage for a lower total cost. When comparing, look at:
- Total Monthly Premiums: Compare your payroll deduction vs. the Part B premium.
- Deductibles & Out-of-Pocket Max: Many employer plans have seen rising deductibles, while a Medicare Supplement plan can offer much more predictable costs.
- Doctor Choice: Does your employer plan limit you to a specific local network, or would you prefer the freedom of Original Medicare to see any doctor in the country?
Don’t Miss Your Initial Enrollment Period (IEP)
The 7-Month Window
- Enroll 3 Months BEFORE your 65th birthday month.
- Initial Enrollment Period (IEP): The 7-month window around your 65th birthday.
- Enroll The Month OF your birthday.
- Enroll 3 Months AFTER your birthday month.
- Special Enrollment Period (SEP): If you successfully delayed Part B because of a large employer plan, you have an 8-month window to sign up once that job or coverage ends.
Chuck sums it up like this: “Taxes and healthcare are the two biggest ‘leaks’ in a retirement bucket. Moving from a group plan to Medicare isn’t just a paperwork change; it’s a strategic move. We help you look at the ‘Main Street Math’—comparing your current deductibles and premiums against the Medicare options to see which one actually keeps more money in your pocket.”
Don’t Navigate the “Alphabet Soup” Alone
Medicare is complicated, but your transition into it doesn’t have to be. Whether you are planning to work until 70 or retire next month, let’s make sure your healthcare and income plans are in sync.
Ready to see how Medicare fits into your 2026 strategy? Call our office at (269) 323-7964. Justin and the team can help explain your enrollment options and ensure you aren’t leaving yourself open to costly penalties. Or download our free Medicare Guide to learn more.
Sources & Citations
- Internal Resource: Southwest Michigan Financial Medicare Resource Guide.
- Regulatory Data: Medicare.gov Enrollment Standards for Working Seniors (2026).
This blog is created and authored by Chuck Henrich (Content Creator) and is published and provided for informational and entertainment purposes only. The information in the Blog constitutes the Content Creators own opinions and it should not be regarded as a description of services provided by Southwest Michigan Financial, LLC. The opinions expressed in the Blog are for general informational purposes only and are not intended to provide specific advice or recommendations for any individual or on any specific security or investment product. It is only intended to provide education about the financial industry. The views reflected in the commentary are subject to change at any time without notice.
Nothing on this Blog constitutes investment advice, performance data or any recommendation that any security, portfolio of securities, investment product, transaction or investment strategy is suitable for any specific person. The Content Creator and Southwest Michigan Financial, LLC assumes no responsibility or liability for any consequences resulting directly or indirectly for any action or inaction you take based on or made in reliance of the information, services or materials provided within this blog.
