Technical Notes and Manuals

This note presents the key updates and revenue development highlights of the 2026 version of the IMF's World Revenue Longitudinal Database (WoRLD), a comprehensive dataset that tracks government revenue trends since the early 1980s, using the classification of the Government Finance Statistics Manual. With data for 195 countries, including 191 IMF member countries, WoRLD provides policymakers, researchers, and the public with invaluable insights into the evolution of the level and composition of revenues and tax revenues. Key updates for the 2026 publication include extending country coverage to Aruba and Liechtenstein and time coverage to 2024.