IRMAA
Glossary · Tax concepts
On this page
Definition
Income-Related Monthly Adjustment Amount. A Medicare premium surcharge based on modified AGI from two years earlier.
High income in 2024 increases your Medicare premiums in 2026. Roth conversions can trigger this.
These definitions describe how ArthaPilot uses each term. For authoritative definitions, consult the SEC, IRS, or a qualified financial advisor.