22025 Irmaa Brackets Part D. In 2025, the medicare irmaa brackets will be adjusted based on the income you reported two years prior, which means your 2023 income will determine your irmaa for 2025. Moreover, it is calculated annually.
Knowing how irmaa works and how it might affect your monthly premiums can help you plan your finances more effectively and avoid any surprises when your bills arrive. Irmaa surcharges for part b and part d are paid separately.