Surcharge Rates for 2026 Medicare beneficiaries exceeding the IRMAA income thresholds in 2026 can expect to pay higher premiums based on a tiered structure. The surcharge is divided into five brackets, with the highest earners paying up to 3.4 times the standard Medicare premium. The exact rates will depend on the 2026 standard Medicare Part B premium, which is subject to change eac... https://www.federalpensionadvisors.com/post/2025-irmaa-brackets