Medicare Irmaa Rates For 2025. Irmaa is a fee that may be added to your medicare part b and part d premiums if your yearly income exceeds a certain amount. The standard monthly premium for medicare part b enrollees is $185 for 2025, of $5.20 from $174.70 in 2024.

Here’s a breakdown of part b irmaa charges based on 2025 income brackets: Learn about medicare irmaa 2025 brackets, how they’re calculated, and how they impact your medicare premiums.