100 cities in 46 countries, each on the same model: tax on your bracket, the route in, the cost, the day.
The engine takes what you earn and what you hold, then orders every address on the board against it.
Rank the board against my position →90 seconds. No account, no payment.
Tax figures use a simplified marginal model with indicative 2026 brackets for a non-US single filer, ignore social contributions, most deductions, wealth taxes, and treaties, and are not advice. Residence rules change often. Verify before acting.