International organizations and coalitions of countries, including the OECD and the G20, have been working to increase transparency and cooperation among tax havens and other countries. Initiatives like the Common Reporting Standard (CRS) and the Base Erosion and Profit Shifting (BEPS) project aim to curb tax avoidance, requiring participating countries to exchange information and implement measures to prevent profit shifting and erosion of the tax base. Additionally, many countries are enacting laws to require disclosure of offshore assets and are pursuing tax treaties that include provisions for information sharing.