IRMAA, or the Income-Related Monthly Adjustment Amount, is an extra premium cost for Medicare Part B and Part D that certain beneficiaries must pay based on their income from two years prior. When income goes beyond certain limits, IRMAA increases Medicare premiums. This affects both Original Medicare and Medicare Advantage. Below, we look at the IRMAA brackets for 2025 and compare... https://www.federalpensionadvisors.com/post/2025-irmaa-brackets