Medicare premiums for higher-income individuals are determined by the 2026 IRMAA brackets, which categorize beneficiaries based on their Modified Adjusted Gross Income (MAGI). The IRMAA brackets 2026 will influence costs for Medicare Part B and Part D, with higher-income earners paying significantly more. As inflation and income levels rise, IRMAA brackets tend to increase slightly ea... https://www.federalpensionadvisors.com/post/2025-irmaa-brackets