Tax Revenue as Percentage of GDP — – Tax Revenue (% of GDP) refers to the total tax revenue collected by the central government, expressed as a percentage of Gross Domestic Product (GDP). Tax revenue consists of compulsory, unrequited payments made by individuals and businesses to the government for public purposes. The indicator measures the relative size of tax collections compared with the overall economy and is widely used to assess a government's revenue-generating capacity, fiscal performance, and tax effort.
The regional average stood at 11.42% in 2015, remained close to 11% through 2019, declined to 10.63% in 2020 amid pandemic-related economic disruptions, and recovered modestly to 10.76% in 2021 and 10.77% in 2022. The overall trend reflects the region's diverse fiscal structures and varying stages of economic development. The regional performance is influenced by several major economies. Australia consistently recorded the highest tax-to-GDP ratio among the countries covered, increasing from 21.79% in 2015 to 23.56% in 2022, demonstrating strong fiscal capacity. South Korea showed steady improvement, rising from 12.53% to 17.16%, while the Philippines maintained stable tax revenue between 13% and 15% throughout the period. Thailand, Malaysia, and Singapore recorded moderate tax-to-GDP ratios with varying trends, whereas China reported comparatively lower ratios, declining from 9.19% in 2015 to 7.52% in 2022, reflecting changes in fiscal policies and economic conditions. Together, these economies illustrate the region's broad fiscal diversity. This dataset is a valuable resource for policymakers, economists, financial institutions, investors, and researchers evaluating fiscal sustainability, taxation efficiency, and government revenue performance across East Asia & Pacific. It supports regional and global benchmarking, tax policy evaluation, trend analysis, and revenue forecasting. Additionally, the data contributes to studies on public finance, macroeconomic stability, fiscal resilience, and sustainable economic development by demonstrating how tax revenues support public services, infrastructure investment, and long-term economic growth across the region.