Income Tax Act Article 90
For purchases or sales of goods on behalf of a client, a profit-seeking enterprise shall record in detail the name and address of the client, the description and classification of the goods, quantity, price, date and amount of commission, and preserve all relevant documents of evidence.
中文原文 所得稅法第90條
營利事業代客買賣貨物，應將買賣客戶姓名、地址、貨物名稱、種類、數量、成交價格、日期及佣金等詳細記帳，並將有關文據保存。