Medicare Irmaa 2024 Brackets And Premiums Calculator. Irmaa is a surcharge added to your medicare parts b and d premiums, based on income. Select the income bracket you fall within:.
This article reviews the 2024 and projected 2025 irmaa income brackets, as well as how irmaa brackets are calculated and how you pay the extra surcharge. The irmaa is calculated on a sliding scale with five income brackets, topping out at $500,000 and $750,000 for individual and joint filing, respectively.