Irmaa Brackets 2024 Calculator Irs. I just completed my 2023 tax return. 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.
The 2024 irmaa brackets by law are going to be larger than 2023. 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.