The year 2018 saw the entry into force of significant tax reforms in Argentina, France, Latvia and the United States. The focus of these reforms has largely been on supporting investment, through lower corporate taxes but also through changes in taxes on property and personal capital income. Some elements of these reforms are also aimed at enhancing fairness by lowering taxes on low and middle-income earners. However, none of these reforms are expected to be revenue-neutral. In addition, Belgium has introduced a comprehensive corporate income tax (CIT) reform, combining a significant reduction in the CIT rate with substantial base broadening.