Medicare 2026

Still on the job at 65? Here's how Medicare fits in

Still on the job at 65? Here's how Medicare fits in — plain-language Medicare information for North Port, Florida.

NORTH PORT, Fla. — More people are working past 65 these days, and that raises a real question: do you have to sign up for Medicare when you turn 65 if your job already gives you health insurance? The answer depends on the size of your employer, the kind of coverage you have, and a few deadlines that are easy to miss.

Here in North Port, where many residents split their time between careers, part-time work, and retirement, it's worth knowing the rules before your birthday month arrives.

Part A is usually the easy call

Most people qualify for premium-free Part A (hospital insurance) at 65 because they or a spouse paid Medicare taxes long enough while working. Because it costs nothing out of pocket, many workers sign up for Part A at 65 and keep their employer plan for everything else.

There is one big exception: if you contribute to a Health Savings Account (HSA), you must stop those contributions before Medicare starts. Enrolling in Part A (or collecting Social Security, which auto-enrolls you in Part A) makes you ineligible to keep putting money in.

Part B is where employer size matters

Part B (doctor and outpatient care) has a monthly premium, so this is the piece most working people think hardest about.

• Employer with 20 or more employees: Your group plan is generally the primary payer. You can usually delay Part B until you retire or lose the coverage, without owing a late-enrollment penalty later.
• Employer with fewer than 20 employees: Medicare is usually the primary payer. If you don't enroll in Part B on time, your job plan may pay very little, leaving you exposed. In this case, most people should enroll at 65.

If you're not sure how your plan is set up, ask your HR or benefits office in writing whether the plan is primary or secondary to Medicare.

COBRA and retiree coverage are not the same as active job coverage

This trips up a lot of people. COBRA and retiree health plans do not count as "current employer coverage" for Medicare purposes. If you're relying on COBRA or a retiree plan at 65, you generally need to enroll in Part B on time or face a lifelong late penalty. The Special Enrollment Period only applies while you (or your spouse) are actively working and covered by that job's plan.

Your 8-month window after work ends

When your job or your employer coverage ends — whichever comes first — you get a Special Enrollment Period of up to 8 months to sign up for Part B without a penalty. To avoid a gap in care, most people start the paperwork in the month before coverage ends rather than waiting.

You can enroll in Part B during this window through the Social Security Administration.

Don't forget drug coverage

If you delay Medicare, you still need "creditable" prescription drug coverage — meaning coverage at least as good as Medicare's — to avoid a Part D late penalty down the road. Your employer plan should send you a notice each year telling you whether your drug coverage is creditable. Keep those notices.

The Part D out-of-pocket cap is $2,100 in 2026 and $2,400 in 2027, and the maximum Part D deductible is $615 in 2026 and $700 in 2027. There's also an optional Medicare Prescription Payment Plan that lets you spread drug costs across the year in monthly installments.

What's available locally

North Port sits in Sarasota County, and Medicare plan availability is set at the county level. When you're ready to look at Medicare Advantage or stand-alone Part D options — whether that's now or after you leave your job — you can compare what's offered in Sarasota County using the plan finder at medicare.gov. The Annual Enrollment Period runs October 15 through December 7, and Medicare Advantage Open Enrollment runs January 1 through March 31.

A quick word on higher incomes

If your income is above $109,000 as a single filer (or $218,000 filing jointly) in 2026, you may owe an Income-Related Monthly Adjustment Amount, or IRMAA, on top of your standard Part B and Part D premiums. Because IRMAA looks back two years at your tax return, working longer can affect what you pay when you do enroll.