Plain-language definitions of key international tax concepts — from arm's length to withholding tax. Essential reference for tax professionals, CFOs, and treasury teams.
International tax involves a complex ecosystem of terms, acronyms, and concepts that professionals in finance, accounting, and law encounter daily. This glossary provides clear, practical definitions of 80+ essential international tax terms used in withholding tax, transfer pricing, tax treaties, and cross-border compliance.
Whether you're new to international tax or a seasoned professional, use the search function or alphabetical index below to quickly find definitions. Each entry includes plain English explanations, examples where relevant, and related terms to help you understand the broader context of international tax compliance.
Put these terms into practice. Use our free WHT Calculator to compute cross-border withholding amounts, or explore bilateral treaty rates with the Treaty Explorer.