Medicare 2026

Medicare Part B and Part D Late Penalties: How Gillette Residents Can Avoid Them

Missing your Medicare sign-up window can cost you for the rest of your life. That's the hard truth behind Medicare's late-enrollment penalties, which quietly add to monthly premiums for people who wait too long to sign up for Part B or Part D. For folks in Gillette, understanding the rules ahead of time is the surest way to avoid a bill that never really goes away.

How the Part B late-enrollment penalty works

Most people become eligible for Medicare around their 65th birthday. Your Initial Enrollment Period runs for seven months — the three months before your birthday month, your birthday month, and the three months after.

If you don't sign up for Part B during that window and you don't have other qualifying coverage, Medicare adds 10% to your Part B premium for each full 12-month period you could have been enrolled but weren't. That extra amount is added to your monthly premium for as long as you have Part B, which for most people means for life.

The penalty is calculated against the standard Part B premium, so it grows a little each year as premiums adjust.

How the Part D late-enrollment penalty works

Part D covers prescription drugs, and it has its own separate penalty. If you go 63 days or more in a row without Part D or other "creditable" drug coverage after your Initial Enrollment Period ends, Medicare can charge a late fee when you eventually sign up.

The math: Medicare multiplies 1% of the "national base beneficiary premium" by the number of full months you went without creditable coverage, then rounds to the nearest 10 cents. That amount is added to your Part D premium every month, and it also generally lasts for as long as you have Part D coverage.

"Creditable" simply means the drug coverage is expected to pay, on average, at least as much as standard Medicare drug coverage. Employer plans, union plans, and some retiree or VA coverage often qualify — but you should get that in writing from the plan.

Who is most at risk in Gillette

Gillette is in Campbell County, where many workers stay on employer or union health plans well past age 65, especially in the energy sector. That's usually fine — as long as the coverage counts as creditable and you sign up for Medicare during a Special Enrollment Period after it ends.

The people who most often get hit with penalties are:

• Retirees who drop employer coverage but wait months to enroll in Medicare.
• People who assumed they didn't need Part D because they weren't taking prescriptions at the time.
• Anyone who missed their Initial Enrollment Period and didn't have other creditable coverage in place.

How to avoid the penalties

The cleanest way to avoid a lifetime penalty is simple: enroll on time, or make sure you have creditable coverage until you do.

A few practical steps:

• Mark your Initial Enrollment Period on the calendar as soon as you know your Medicare eligibility date.
• Each fall, check the notice your employer or drug plan sends about whether your coverage is still "creditable." Keep it.
• If you're losing employer coverage, ask HR about your Special Enrollment Period rights before your last day.
• Even if you don't take prescriptions, consider a Part D plan to avoid the Part D penalty later.

The Annual Enrollment Period (Oct. 15 – Dec. 7) and the Medicare Advantage Open Enrollment Period (Jan. 1 – March 31) let you change plans, but they generally don't let you escape a penalty you've already earned.

What 2027 looks like for drug coverage

Some 2027 program-level facts are worth knowing while you weigh Part D:

• The Part D out-of-pocket cap is $2,100 in 2026 and $2,400 in 2027.
• The maximum Part D deductible is $615 for 2026 and $700 for 2027.
• The old coverage gap, or "donut hole," was eliminated in 2025, so Part D now has three phases instead of four.
• The Medicare Prescription Payment Plan lets you spread your drug costs across the year in monthly installments, at no extra charge.
• IRMAA income surcharges for Part B and Part D begin above $109,000 for single filers in 2026.

None of these change the penalty rules, but they can affect how you think about signing up.

Where Gillette residents can get help

Before making a decision, call in reinforcements. Wyoming's State Health Insurance Information Program (WSHIIP) offers free, one-on-one counseling and does not sell insurance. Medicare's own tools at medicare.gov and 1-800-MEDICARE (TTY 1-877-486-2048) can also confirm your enrollment dates and coverage options.