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Part B Late Enrollment
Penalty Calculator
Will I have to pay a Part B Penalty?
If you failed to sign up for Medicare when you were first eligible, and you didn’t have any creditable coverage, you will be subject to the Medicare Part B late enrollment penalty. This penalty is equal to 10% for every year (12 full months) that you waited to enroll, and is added to your monthly premium. This penalty gets applied against the standard Part B premium.
Keep in mind that the national Part B premium may change each year.
Estimated monthly penalty for 2025
Enter the number of months that you were late enrolling in Medicare Part B:
Part D Late Enrollment
Penalty Calculator
Will I have to pay a Part B Penalty?
If, after your Initial Enrollment Period ends, there is a period of 63 or more days in a row where you don’t have Medicare drug coverage or other creditable coverage, you may have to pay a Part D Late Enrollment Penalty. This is an amount that is permanently added to your Medicare Part D premium each month.
Keep in mind that the national base Part D premium may change each year.
Estimated monthly penalty for 2025
Enter the number of months that you were late enrolling in Medicare Part B: