• The tax-to-GDP ratio is a measure of a country’s tax revenue relative to the size of its economy.

  • This ratio is used with other measures to determine how well a country’s government is channeling its economic resources through taxation.
  • Developed countries generally have higher tax-to-GDP ratios than developing countries.
  • Higher tax revenue means a country can spend more on improving infrastructure, health care and education, which is key to the long-term prospects for the country’s economy and population.
  • According to the World Bank, tax revenues in excess of 15% of a country’s gross domestic product (GDP) are a key driver of economic growth and, ultimately, poverty reduction.