Medicare 2026

Medicare and Employer Coverage in Oxford: How They Coordinate

OXFORD, Miss. — Turning 65 used to mean signing up for Medicare and moving on. Today, plenty of people in Oxford are still on the job at 65 — teaching at Ole Miss, running a small business on the Square, or working part-time with benefits. If that's you, you have a decision to make: enroll in Medicare now, delay some parts, or coordinate both. Getting this right can save you from lifelong penalties and coverage gaps.

Here is a plain-English guide to how Medicare works alongside employer coverage, based on rules from Medicare.gov.

Start With the Size of Your Employer

The single most important factor is how many people work at your company.

• 20 or more employees: Your group health plan pays first, and Medicare pays second if you enroll. Many workers in this situation delay Part B to avoid paying a premium for coverage they don't yet need.
• Fewer than 20 employees: Medicare usually pays first, and your employer plan pays second. In this case, you generally need to enroll in Part A and Part B when you're first eligible, or you could be left with big gaps your employer plan won't fill.

If you're not sure which category you're in, ask your HR or benefits office directly. Don't guess.

Part A Is Usually a Yes

Most people qualify for premium-free Part A (hospital insurance) because they or a spouse paid Medicare taxes for at least 10 years. If that's you, signing up at 65 is often a no-brainer — it can help cover hospital costs your job plan doesn't.

One exception: if you contribute to a Health Savings Account (HSA), enrolling in any part of Medicare — including Part A — stops you from making new HSA contributions. Many people still working choose to delay Part A for this reason. Talk to your benefits team before deciding.

Part B: Enroll Now or Delay?

Part B (doctor and outpatient care) comes with a monthly premium. Whether to take it while working depends on your employer size and how good your job coverage is.

If your employer has 20 or more workers and offers solid coverage, you may delay Part B without penalty — as long as your job coverage counts as "current employment" coverage (not retiree coverage or COBRA, which don't protect you from penalties).

When you eventually leave the job, you get an 8-month Special Enrollment Period to sign up for Part B without a late penalty. Miss that window, and you could face a premium surcharge for the rest of your life.

Part D and Prescription Drugs

Part D covers prescriptions. If your employer plan already includes drug coverage that Medicare considers "creditable" (at least as good as a standard Part D plan), you can delay Part D without penalty. Your plan should send you a notice each year confirming this — keep it in a safe place.

In 2027, Part D has some meaningful protections built in:

• A $2,100 annual out-of-pocket cap on covered drugs.
• A $615 maximum deductible.
• The old "donut hole" coverage gap is gone as of 2025.
• An optional Medicare Prescription Payment Plan lets you spread drug costs across the year in monthly installments.

What's Available Around Oxford

Oxford is in Lafayette County, where Medicare beneficiaries have access to a range of Medicare Advantage and stand-alone Part D plans offered by multiple carriers. Plan counts and options can change every year, so it's worth checking the official Plan Finder at Medicare.gov/plan-compare during open enrollment.

Two dates to circle:

• Annual Enrollment Period: Oct. 15 – Dec. 7
• Medicare Advantage Open Enrollment: Jan. 1 – March 31

A Note on Higher Incomes

If your income (from work, investments, or both) is above $109,000 as a single filer in 2026, you may pay an income-related surcharge called IRMAA on top of your Part B and Part D premiums. It's based on your tax return from two years earlier, so working income now can affect your Medicare costs later.