The Act Governing Electronic Payment Institutions Article 26

Specialized electronic payment institutions shall retain necessary transaction records, including the user's stored value card numbers, electronic payment account numbers, transaction items, dates, amounts, and currencies. The same applies to any uncompleted transactions.The necessary transaction records referred to in the preceding paragraph shall be retained for at least five (5) years after the termination or completion of the transaction. Other regulation that requires a longer retention period shall apply.The regulations on matters such as the scope and method of retaining necessary transaction records shall be prescribed by the competent authority in consultation with the Ministry of Justice, the Ministry of Finance, and the Central Bank.The tax authority or the customs may, out of business needs, request a specialized electronic payment institution to provide necessary transaction records prescribed in Paragraph 1 hereof and data obtained in the user and contracted institution identification process provided in Paragraph 1 of the preceding article, which the specialized electronic payment institution may not refuse. The regulations governing the scope of the necessary transaction records or data, methods of provision, the determination of the refusal to provide information, and other related matters shall be prescribed by the Ministry of Finance in consultation with the competent authority.