Irmaa Brackets 2024 And 2025 Calculator. The 2025 irmaa income brackets and parts b and d surcharges have been announced. Remember that the irmaa calculation uses your modified adjusted gross income (magi) filed two years prior.
In 2024, with the inflation adjustment to the irmaa brackets, you will no longer have a part d or part b irmaa payment. Irmaa is a surcharge that people with income above a certain amount must pay in addition to their medicare part b and part d premiums.