Tax policy & data / Working reference
Revenue Statistics 2025
A common statistical framework for comparing the level and composition of tax revenues across OECD countries.
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The T&M reading note
Why it deserves your time
Helps readers understand what a tax-to-GDP comparison measures, and how revenue mixes differ.
A suggested 15-minute first pass
Where to begin
- Read the classification framework.
- Compare revenue composition, not only the total.
- Check whether observations are final or preliminary.
Read this edition in context
The 2025 edition includes final 2023 and preliminary 2024 revenue data.
These notes describe the publication; they do not determine the treatment of a particular taxpayer or transaction.
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Official sourcewww.oecd.org Catalogue review: 2026-10-13