2025 Irmaa Brackets Based On 2024 Income Calculator. Use this calculator to determine your medicare irmaa charge for making over the income limit for medicare. To determine your irmaa, you'll need to use your 2022 modified adjusted gross income (magi).

The 2025 irmaa income brackets and parts b and d surcharges have been announced. If a user is already 65+, the calculation uses current year agi (2024) for 2024 and 2025 calculations when income includes work and.