The IMF’s World Revenue Longitudinal Database (WoRLD) tracks government revenue trends since the early 1980s. This invaluable resource offers policymakers, researchers, and the public crucial insights into the evolution of both the level and composition of revenues. With its consistent and reliable source—IMF surveillance data, computed using the Government Finance Statistics Manual—the database enables cross-country comparisons and longitudinal analysis, making it an essential tool for shaping policies that advance countries’ development goals.