Support Taigan Bridge

Taigan Bridge is a free, single-file financial-planning tool built for the specific situation of Americans living in Japan — SOFA contractors, military veterans, work-visa expats, mixed-citizenship families. FBAR, US + JP taxes, retirement projections, JP inheritance, health records — all bilingual EN/JP, all running locally in your browser. No signup. No telemetry. No ads.

I built this because no commercial financial-planning product addresses this audience. The cross-border situation — PFIC traps, 10-year worldwide-asset clocks, SOFA-status edge cases, 確定申告 alongside Form 1040 — is genuinely hard, and getting it wrong is expensive.

If Taigan Bridge has saved you time, surfaced a mistake before it cost you, or just made one piece of the tangle feel manageable, a coffee genuinely helps. Tips fund the Claude API costs that power the AI features and the occasional professional review of cross-border tax content. ☕ Thank you.