Inflation's Role in IRMAA Brackets 2026 Inflation adjustments play a key role in determining IRMAA brackets 2026. As the cost of living rises, so do the income thresholds used to calculate Medicare surcharges. While this could benefit some retirees by keeping them in a lower bracket, it also means planning is essential. Understanding the inflation factors in the 2026 IRMAA brackets ... https://www.federalpensionadvisors.com/post/2025-irmaa-brackets