The Medicare IRMAA Calculator estimates Part B and Part D premium adjustments from modified adjusted gross income, filing status, and the stored premium tiers.
The module compares MAGI with filing-status thresholds, selects a tier, and returns the Part B premium, Part B adjustment, Part D adjustment, and combined monthly increase.
Questions
What is IRMAA?
It is an income-related monthly adjustment amount added to Medicare Part B and Part D premiums for higher-income beneficiaries.
Which tax year is used?
The component contains a static threshold and premium table. Check the displayed year and current CMS information before using the estimate.
Does this include every Medicare premium?
No. It focuses on the modeled Part B and Part D adjustments.
Limitations
MAGI definitions, two-year lookback rules, life-changing-event appeals, and annual premium changes are not fully modeled.