Medicare Irmaa Brackets 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. For 2025, you’ll find several distinct income brackets that determine your irmaa surcharge.

The irmaa brackets for part b in 2025 are listed below. By next year the thresholds, if inflation remains constant, irmaa 2025, according to the trustees of medicare, will increase to: