Guide

Avoiding Medicare Late Penalties

The penalties that last a lifetime — and how to dodge them

Michael Furman
Reviewed by Michael Furman, COO — 24 years in insurance · MDRT Top of the Table
NovaVida Group licensed team · Updated August 2026

Miss your Medicare enrollment windows without other qualifying coverage and you can face penalties that are added to your premiums for life. The good news: they’re almost always avoidable with the right timing.

How the Penalties Work

The Part B late penalty adds 10% to your premium for each full 12-month period you could have had Part B but didn’t — and it usually lasts for life. The Part D penalty adds roughly 1% of the national base premium for every month you went without creditable drug coverage. Small monthly amounts, but they compound over years.

How to Avoid Them

Enroll during your Initial Enrollment Period, or keep creditable coverage (like a qualifying employer plan) and enroll through a Special Enrollment Period when it ends. The key is not letting more than 63 days pass without creditable coverage. We track the deadlines so you never trip one.

Fast Facts

  • Part B penalty: +10% for each 12 months you delayed
  • Part D penalty: 1% of the base premium per month late
  • Both can last as long as you have Medicare
  • Creditable employer coverage prevents them

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Quick answers

Frequently Asked

I delayed because I had employer coverage — do I owe a penalty?

Generally no, as long as the coverage was “creditable” and you enroll within the Special Enrollment Period after it ends. Keep proof of your coverage dates — we’ll help you file for the SEP correctly.