This Guidance is intended to aid financial institutions in complying with their obligations under Part 8A of the Inland Revenue Ordinance (Cap. 112). It contains the Department’s views on the due diligence procedures required by the Common Reporting Standard of the Organisation for Economic Co-operation and Development (OECD). While every effort is made to ensure that the information given in this Guidance is accurate, it is not a legal document. It is also important for financial institutions to make reference to the materials published by the OECD at the Automatic Exchange Portal.