Observed arrival · 2026-09-16
Bracket Ladder, a Roth conversion calculator with a hard stop
A $15 offline calculator that plans year-by-year Roth conversions around federal tax brackets and IRMAA thresholds.
Field notes
The tool models each conversion year as a contest between two ceilings: remaining federal bracket room and the next IRMAA line. Users can edit target brackets from dropdowns and compare 22% and 24% strategies on the same chart. The page identifies the underlying artifact as one HTML file that runs locally in a browser, with no account and no outbound data. Its stated scope is deliberately federal-only; state tax and Social Security taxability are left outside v1.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue