Regulations Governing the Establishment and Management of Offshore Island Duty-Free Shops Article 25

The vouchers and reports designed and printed by offshore island duty-free shops in accordance with the relevant provisions of “The Regulations Governing the Establishment and Management of Offshore Island Duty-Free Shops”, as well as the various accounting books required to be established pursuant to the Business Entity Accounting Act, shall be processed by computer. A perpetual inventory system shall be adopted, and detailed records of purchases and sales shall be created and recorded on a daily and transaction-by-transaction basis in a timely manner, so as to be available for inspection by the competent Customs Office and the competent Tax Office.
中文原文 離島免稅購物商店設置管理辦法第25條
離島免稅購物商店依本辦法自行設計印製之有關憑證報表及依商業會計法應設置之各項會計簿籍,應以電腦處理,並採永續盤存制存貨制度,逐日逐筆詳細即時建檔登載進貨及銷貨有關資料,以備海關及主管稽徵機關稽查。

English translation for reference only; the Chinese text prevails. Not legal advice.