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IRMAA Calculator 2026: How to Estimate Your Medicare Premium Surcharges Based on Income

Use the IRMAA calculator to estimate your 2026 Medicare premium surcharges. Learn how income affects Part B and Part D costs and plan accordingly.
Reviewed by Aaron Sims, Licensed Life & Health Agent since 2012Last updated February 9, 2026
Elderly doctor wearing glasses and stethoscope in office.
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