Most people become eligible for Medicare once they reach age 65. But these days, more and more Americans continue working past that age, while receiving employer-sponsored health insurance.
You may be thinking about how Medicare coverage would work with your job insurance. Do you even need it? What about penalties?
Today, we’ll answer these questions.
How Does Medicare Work With Job Insurance?
To better understand how these two types of health insurance plans work side by side, it’s important to distinguish between the primary payer and the secondary payer.
The primary payer covers your healthcare claims first, up to its limits. If a balance remains, the primary payer sends it to the secondary payer. If the secondary payer can’t foot the rest of the bill, you may need to pay it out of pocket.
Medicare is the primary payer if your job insurance is from current work at a company with fewer than 20 employees. This is known as a small group health plan.
Medicare is the secondary payer if job insurance is from current work at a company with 20 or more employees. This is known as a group health plan (GHP).
This type of payment structure is called coordination of benefits.
But if your job insurance meets your needs, you may be wondering whether you should delay signing up for Medicare to avoid extra premium costs.
Most people don’t pay premiums for Medicare Part A. However, the 2026 premium for Part B is $202.90. And high earners could face a surcharge called the income-related monthly adjustment amount (IRMAA).
But if you’re covered by current job insurance, regardless of the size of the employer, you can delay Medicare enrollment without penalty.
Should You Delay Medicare Part B?
Most experts recommend you don’t delay Medicare Part B if your job insurance is from a company with fewer than 20 employees. In this case, your employer would be the secondary payer.
But here’s the catch: Small workplaces aren’t obligated to continue your coverage once you’re eligible for Medicare. Some may provide little or no coverage unless you enroll in Medicare Part B (the primary payer in this situation).
And if you’re covered through your spouse’s employer, regardless of the company’s size, you may need to enroll in Medicare to stay on the employer plan as a dependent. So your spouse should check with their employer’s human resources or benefits department to learn the rules behind coverage of Medicare-eligible spouses.
When Can You Enroll in Medicare Part B?
You can enroll in Medicare Part B during your special enrollment period. This is any point while covered by employer insurance or up to eight months after the first month you no longer have that insurance.
What About Cobra?
According to the 1985 Consolidated Omnibus Budget Reconciliation Act (COBRA), the plan allows you to keep your job insurance for a certain amount of time after that employment ends.
To understand how COBRA works with Medicare, you need to pay attention to which type of coverage you receive first.
If you get COBRA first, coverage typically ends once you become eligible for Medicare. So if you don’t have access to creditable coverage, you may want to consider enrolling in Medicare Part A and Part B. Once you enroll in Medicare, your spouse and dependents may be able to stay on applicable COBRA coverage. You’d need to check in with your plan administrators to confirm.
But if you get Medicare first, you may enroll in COBRA. In this case, COBRA would be the secondary payer up to coverage and duration limits.
What About Retirement Coverage?
Some employers provide retiree health insurance to former employees. Retiree health insurance almost always acts as the secondary payer in regard to Medicare. So if you have retiree insurance, you may want to consider enrolling in Medicare.
What If You Got Medicare Due to Disability?
Employer insurance works a bit differently with Medicare if you become eligible for the government program due to disability.
In this case, work insurance is primary if it comes from an employer with 100 or more employees, and Medicare is secondary.
Employer insurance is secondary if it comes from an employer with fewer than 100 employees, and Medicare is primary.
The Bottom Line
You may want to consider enrolling in Medicare if your employer-sponsored health insurance comes from an employer that has fewer than 20 employees. In this case, your company is the secondary payer. It’s not required to continue covering you after you become eligible for Medicare. And in some cases, it won’t cover any claims unless you’re enrolled in Medicare.
The Epoch Times copyright © 2026. The views and opinions expressed are those of the authors. They are meant for general informational purposes only and should not be construed or interpreted as a recommendation or solicitation. The Epoch Times does not provide investment, tax, legal, financial planning, estate planning, or any other personal finance advice. The Epoch Times holds no liability for the accuracy or timeliness of the information provided.
