Medicare Part D Penalty Calculator
Estimate only — CMS determines the actual penalty.
Estimated Penalty
Uncovered months:–
Base premium used:$–
Monthly penalty:$–
Approx. yearly cost:$–
Formula: Uncovered months × 1% × Base Beneficiary Premium, rounded to the nearest $0.10.
Disclaimer: This tool is for education only. Confirm with CMS/your plan.