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Long-tail notes for Gate 0. Educational only — not tax or investment advice.
- Medicare IRMAA costs in plain numbersHow IRMAA brackets turn MAGI into Part B and D surcharges.
- Social Security taxation basicsWhy provisional income can interact with other retirement cash flows.
- State retirement-income tax differencesFederal IRMAA is not the whole story — states vary widely.
- Scenario math vs adviceWhat an educational tool can show — and what it must not claim.