The Common Reporting Standard (CRS) is an information standard for the Automatic Exchange Of Information (AEOI) regarding financial accounts on a global level, between tax authorities, which the Organisation for Economic Co-operation and Development (OECD) developed in 2014.
Its purpose is to combat tax evasion. The idea was based on the US Foreign Account Tax Compliance Act (FATCA) implementation agreements and its legal basis is the Convention on Mutual Administrative Assistance in Tax Matters (MCAA). 120 countries have signed the agreement to implement, and the MCAA remains open for more countries to adopt.[1] First reporting occurred in 2017, with many of the rest starting in 2018.