Medicare 2026

Why Medicare Part B and D deadlines matter in Worcester

WORCESTER, Mass. — Miss a key Medicare sign-up window, and the price tag can follow you for the rest of your life. That is the hard truth behind two of the program's least-understood rules: the late-enrollment penalties for Part B (medical insurance) and Part D (prescription drug coverage).

The penalties are not one-time fees. They are added to your monthly premium, often permanently. The good news? They are almost entirely avoidable if you know the deadlines and act on time.

Why these penalties exist

Medicare works like insurance: it needs healthy people paying in, not just people who wait until they are sick. So Congress built in penalties to encourage on-time enrollment. If you delay signing up without a good reason — like having other qualifying coverage — you can be charged extra for years.

How the Part B penalty works

Part B covers doctor visits, outpatient care, and many preventive services. If you don't sign up when you're first eligible, your monthly premium can go up 10% for each full 12-month period you could have had Part B but didn't.

For example, if you waited three years, your Part B premium could be 30% higher — and that surcharge generally stays with you for as long as you have Part B. You can only sign up during the General Enrollment Period (January 1 – March 31) if you miss your initial window and don't qualify for a Special Enrollment Period.

How the Part D penalty works

Part D covers prescription drugs. The penalty here is smaller per month but adds up over time. It equals 1% of the "national base beneficiary premium" (set by Medicare each year) times the number of full months you went without Part D or other "creditable" drug coverage after you were first eligible.

That amount is rounded to the nearest 10 cents and added to your Part D premium each month — again, usually for life. "Creditable coverage" means drug coverage that Medicare considers at least as good as basic Part D, such as some employer or union plans. Your plan should send you a notice each year telling you whether your coverage is creditable. Keep those notices.

Your Initial Enrollment Period is the safest window

Most people get a 7-month Initial Enrollment Period around their 65th birthday: the three months before, the month of, and the three months after. Signing up during this window is the cleanest way to avoid both penalties.

If you're already getting Social Security benefits when you turn 65, you'll usually be enrolled in Parts A and B automatically. If not, you have to sign up yourself through the Social Security Administration.

When you can delay without a penalty

Not everyone needs Part B or Part D at 65. If you (or your spouse) are still working and have group health coverage through that job, you may be able to delay Part B without a penalty. When that job coverage ends, you generally get an 8-month Special Enrollment Period to sign up for Part B, and a 2-month window for Part D.

The catch: COBRA and retiree coverage usually do not count as active employer coverage for the Part B rule. Many people learn this the hard way. Before you turn 65, check with your benefits office and, ideally, your local SHIP (State Health Insurance Assistance Program) counselor.

Where Worcester fits in

Worcester is in Worcester County, where residents have a broad set of Medicare Advantage and stand-alone Part D options available during the Annual Enrollment Period (October 15 – December 7). Plan availability is set at the county level, so two neighbors on the same street will see the same menu. What differs is what each person needs — and whether they signed up on time in the first place.

What's new for 2027

A few program-level changes worth knowing as you plan:

• The Part D annual out-of-pocket cap on covered drugs is $2,100 in 2026 and $2,400 in 2027.
• The Part D maximum deductible is $615 in 2026 and $700 in 2027.
• The old "donut hole" coverage gap is gone, replaced with a simpler three-phase design.
• The Medicare Prescription Payment Plan lets you spread your drug costs into monthly payments instead of paying big bills at the pharmacy.
• IRMAA surcharges — extra amounts higher earners pay for Parts B and D — start above $109,000 in income for a single filer.