Medicare Irma Brackets 2024. The 2024 irmaa thresholds will increase by over 5.00% from 2023. Irmaa is a surcharge added to your medicare parts b and d premiums, based on income.

The amount you’ll pay for your medicare premiums in 2024 hinges on your modified adjusted gross income (magi) from two years ago. Irmaa is a surcharge added to your medicare parts b and d premiums, based on income.