The Part B late enrollment penalty is permanent. Calculate exactly what it’s costing you.
How many full 12-month periods did you delay Part B?
Your estimated monthly penalty
added to your Part B premium — permanently
Based on the approximately $202.90 monthly Part B premium during the 2026 Medicare cycle. If you are reading this in a later year, verify the current premium at Medicare.gov. Penalty = 10% × years delayed × current premium.
Can this penalty be reversed? In some cases — if a government agency gave you incorrect information.