Attribution

Basemap

• © OpenStreetMap contributors — under the Open Database License (ODbL).
• © Protomaps — basemap tiles derived from OpenStreetMap.
• MapLibre GL JS — BSD-3 licensed map renderer.

Geometry

• Natural Earth — country boundaries (1:50m admin-0), public domain.

Tax, residency & treaty data

Tax Map does not rely on a single upstream data vendor. Every figure is compiled from a primary source — the relevant national tax authority, finance ministry, or official immigration portal — and each individual data point on a country page links to its own source, with the date it was verified. The compilation, scoring and presentation are ours.

See the methodology for how the data is discovered, extracted, validated and refreshed — and our standing rule that no tax figure is ever AI-generated.