Regulations Governing the Conduct of Securities Trading Margin Purchase and Short Sale Operations by Securities Firms Article 13
When the brokerage trading agreement between a securities firm and its customer is terminated, the securities firm shall cancel the margin account.
中文原文 證券商辦理有價證券買賣融資融券管理辦法第13條
證券商與客戶訂立之委託買賣契約經終止時，證券商應註銷其信用帳戶。