Medicare Cost 2024 Irmaa Brackets. The standard monthly premium for medicare part b enrollees will be $174.70 for 2024, an increase of $9.80 from $164.90 in 2023. Most other medicare part d beneficiaries earning over $103,000.

The income limit for irmaa in 2024 is $103,000 for individuals and $206,000 for couples. The true cost of part b that irmaa beneficiaries pay is 35% for level 1, 50% for level 2, 65% for level 3, 80% for level 4, and 85% for level 5.