2025 Irmaa Brackets Based On 2025 Income 2025. For example, a small increase in income of just $1 could. This magi is similar to the magi for affordable care act subsidies, but not identical.
The 2025 irmaa income brackets and parts b and d surcharges have been announced. So, for example, the 2025 irmaa brackets will be based on your income in 2023.