The irmaa brackets 2026 can significantly affect Medicare Part B and Part D premiums for retirees. Federal Pension Advisors explains how income thresholds work, who may be impacted, and why understanding IRMAA is essential for effective retirement and tax planning. https://www.federalpensionadvisors.com/post/2026-irmaa-brackets-medicare-irmaa-in-2026-and-surcharge