Part D Penalty Calculator 2025

Part D Penalty Calculator 2025. For each month you delay enrollment in medicare part d, you will have to pay a 1% part d late enrollment penalty (lep), unless you: Calculate your medicare part d penalty by multiplying 1% of the national base beneficiary premium by the total months without creditable coverage.

The part d penalty is determined by taking 1% of the “national base beneficiary premium” times the number of months someone has gone without having part d or creditable drug coverage. Medicare part d late enrollment penalty calculator.