Methodology

Transparency is a core principle of TaxAtlas. This page explains how we collect, verify, and present our tax data.

Data Sources

Our tax data is compiled from the following sources:

• Official government tax authority publications and legislation
• OECD Tax Database and Global Revenue Statistics
• PwC Worldwide Tax Summaries
• Deloitte International Tax Source
• EY Worldwide Tax Guide
• KPMG Tax Rates Online
• IMF and World Bank economic indicators

What We Report

We report statutory (headline) tax rates, which are the rates set by law. Effective tax rates can vary significantly based on deductions, credits, exemptions, and individual circumstances. Where relevant, we note these distinctions.

Income Tax

For personal income tax, we report the top marginal rate applicable to residents. Rates shown are for single filers unless otherwise noted. Where countries have sub-national taxes (e.g., US state taxes, Canadian provincial taxes, Swiss cantonal taxes), we note this and may include combined rates.

Corporate Tax

We report the combined statutory corporate income tax rate, including national and sub-national components where applicable (e.g., Germany's trade tax, Japan's local taxes). Special rates for small businesses or specific sectors are noted separately.

Update Frequency

We review and update tax data at least quarterly, with immediate updates when major tax reform legislation is enacted. Each country page shows its last update date. If you notice outdated information, please contact us.

Limitations

• Tax systems are complex — our summaries necessarily simplify nuanced rules
• Special regimes, incentives, and exemptions may apply but are not always listed
• Sub-national taxes (state, provincial, cantonal) may not be fully captured
• Treaty benefits depend on specific circumstances and may vary
• Exchange rates and bracket thresholds change annually