Medicare 2026

Why Medicare late-enrollment fees can last a lifetime in Middletown

MIDDLETOWN, Del. — Miss a Medicare sign-up window, and the bill can follow you for the rest of your life. That is the part many people near retirement do not hear until it is too late. The penalties for signing up late for Part B (doctor visits and outpatient care) and Part D (prescription drugs) are not one-time fees. They are added to your monthly premium, often for as long as you have Medicare.

The good news: these penalties are avoidable if you know the deadlines and act on them.

Why these penalties exist

Medicare is built on the idea that healthy and sick people are all in the pool together. If people could wait to sign up until they got sick, premiums would climb for everyone. The late penalties are Medicare's way of nudging people to enroll on time — or to keep other coverage that counts as "creditable" until they do enroll.

That is why the penalty is not a flat fine. It is a monthly add-on to your premium, calculated from how long you waited.

The Part B penalty, in plain terms

If you do not sign up for Part B when you are first eligible, and you do not have other qualifying coverage, your monthly Part B premium can go up 10% for each full 12-month period you could have had it. According to CMS, you generally pay that higher premium for as long as you have Part B.

Example: someone who waited three full years to enroll could see a 30% add-on to their Part B premium every month, going forward.

Your first chance to sign up is your Initial Enrollment Period — a 7-month window that starts three months before the month you turn 65 and ends three months after. If you miss it, the General Enrollment Period runs January 1 – March 31 each year, with coverage starting the month after you sign up.

The Part D penalty works differently

The Part D late enrollment penalty kicks in if you go 63 days or more in a row without Medicare drug coverage or other "creditable" drug coverage (coverage Medicare considers at least as good as a standard Part D plan) after your Initial Enrollment Period ends.

The math: Medicare multiplies 1% of the "national base beneficiary premium" by the number of full months you went without coverage. That amount is rounded to the nearest 10 cents and added to your Part D premium. Like the Part B penalty, it generally sticks with you for as long as you have Part D.

The penalty amount can also change from year to year, because the national base premium changes.

When you can delay without a penalty

Not everyone needs to sign up at 65. If you (or your spouse) are still working and you have health coverage through that job, you may qualify for a Special Enrollment Period to sign up for Part B later — with no penalty. The same idea applies to Part D if your job-based drug coverage is creditable. Your plan is required to send you a notice each year telling you whether it counts.

A few important cautions:

• COBRA and retiree coverage generally do not count as active employer coverage for Part B purposes. Many people learn this the hard way.
• If you have a Health Savings Account, signing up for any part of Medicare stops your ability to contribute.
• Keep the "creditable coverage" letters your drug plan sends you. You may need them later to prove you should not owe a Part D penalty.

What Middletown residents should know locally

Middletown is in New Castle County, where Medicare beneficiaries have a range of Original Medicare, Medicare Advantage, and stand-alone Part D options to choose from during the Annual Enrollment Period (October 15 – December 7). The rules and deadlines above are set at the federal level and apply the same way in Delaware as they do anywhere else.

For one-on-one help that is free and unbiased, Delaware's State Health Insurance Assistance Program (SHIP), known locally as ELDERinfo, can walk you through your specific situation.

A quick word on 2027 Part D changes

Even if you already have drug coverage, 2027 brings some structural changes worth knowing. 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. The old coverage gap (the "donut hole") is gone as of 2025 — drug coverage now moves through three phases instead of four. There is also an optional Medicare Prescription Payment Plan that lets you spread your drug costs across the year in monthly installments.

None of that changes the late-enrollment rules, but it is a reminder to review your coverage yearly.