Part D late enrollment penalty

The late enrollment penalty is an amount that's permanently added to your Medicare drug coverage (Part D) premium. You may owe a late enrollment penalty if at any time after your Initial Enrollment Period is over, there's a period of 63 or more days in a row when you don't have Medicare drug coverage or other creditable prescription drug coverage.

You’ll generally have to pay the penalty for as long as you have Medicare drug coverage.

 

 

What is considered credible prescription drug coverage? Prescription drug coverage (for example, from an employer or union) that's expected to pay, on average, at least as much as Medicare's standard prescription drug coverage. People who have this kind of coverage when they become eligible for Medicare can generally keep that coverage without paying a penalty, if they decide to enroll in Medicare prescription drug coverage later.

Note - If you get Extra Help, you don't pay the late enrollment penalty.

How much is the Part D penalty?

The cost of the late enrollment penalty depends on how long you went without Part D or creditable prescription drug coverage.

Medicare calculates the penalty by multiplying 1% of the "national base beneficiary premium" ($33.37 in 2022) times the number of full, uncovered months you didn't have Part D or creditable coverage. The monthly premium is rounded to the nearest $.10 and added to your monthly Part D premium.

The national base beneficiary premium may change each year, so your penalty amount may also change each year.

How do I know if I owe a penalty?