The Common Reporting Standard (CRS) is an automatic exchange of financial account information between jurisdictions. It was formulated in 2014 by the OECD and leverages existing standards like FATCA. Over 100 countries have committed to implementing CRS, with 50 early adopters exchanging information starting in 2018. CRS requires financial institutions to report account information like interest, dividends, and account balances to their local tax authorities, who will automatically share that information with other tax authorities annually. Implementing CRS involves translating it into domestic laws, establishing agreements for exchange of information, building IT systems, and protecting confidential data.