Medicare Part D · Gilman Agency

Part D Late Enrollment
Penalty Calculator

Enter the months you went without Part D or creditable drug coverage to estimate your permanent monthly penalty.

Count only full calendar months without Part D AND other creditable coverage (employer plan, VA, TRICARE, FEHB). Gaps of 62 days or fewer do not trigger a penalty.

No Late Enrollment Penalty

A gap of 62 days or fewer does not trigger a Part D late enrollment penalty. You're in the clear — but enroll in Part D as soon as possible to stay protected.

Your Penalty Percentage

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2026 Penalty (Current)

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2027 Penalty (Projected ↑)

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Penalty percentage
2026 calculation
2027 calculation*

*Rounded to nearest $0.10 per CMS rules. 2027 base premium projected; final amount published September 2026.

Year Base Premium Monthly Penalty Annual Cost

Same penalty percentage — higher dollar cost as the base premium rises each year. *2027 projected.

Think your penalty was assessed incorrectly?

You have 60 days from the penalty notice to file a reconsideration request. We can help you review your coverage history and prepare your appeal. Medicare plan reviews are always free.

📞 (800) 927-9326  ·  marc@gilmanagency.com