Form 8975, also known as the Country-by-Country (CbC) Report, is a tax form required under the Base Erosion and Profit Shifting (BEPS) project of the Organisation for Economic Co-operation and Development (OECD). Its purpose is to provide tax authorities with information about reportable transactions between related entities in different countries, helping them to identify and address potential base erosion and profit shifting (BEPS) issues.