Regulations Governing Securities Investment and Futures Trading in Taiwan by Mainland Area Investors Article 5

When a mainland area investor that engages in securities investment or futures trading retains or appoints an agent or representative in the Taiwan area to file tax returns and pay taxes, the mainland area investor shall fill out an evidentiary document for such retention or appointment in advance, and submit it for the approval of the competent tax authority; and the investor shall do the same when there is any change of agent or representative.When a mainland area investor applies for exchange settlement of earnings derived from securities investments or futures trading, the agent or representative in the Taiwan area shall carry out exchange settlement in accordance with applicable foreign exchange-related laws and regulations, by submitting either the evidentiary document under the preceding paragraph that has been approved by the tax authorities, or a tax payment certificate issued by the competent tax authority.The format of the evidentiary document under paragraph 1 shall be prescribed by the Ministry of Finance.If any information filed or evidentiary document submitted by an agent or representative in the Taiwan area under these Regulations contains any misrepresentation, the matter shall be handled in accordance with the applicable provisions of these Regulations, the Income Tax Act, and the Tax Collection Act.
中文原文 大陸地區投資人來臺從事證券投資及期貨交易管理辦法第5條
大陸地區投資人從事證券投資或期貨交易,由臺灣地區代理人或代表人辦理稅捐之申報及繳納,應事先填具委託或指派之證明文件,送請該管稽徵機關核准;變更代理人或代表人時,亦同。
大陸地區投資人就其從事證券投資或期貨交易之收益申請結匯時,應由臺灣地區代理人或代表人檢附前項經稽徵機關核准之證明文件,或該管稽徵機關出具之完稅證明,依外匯相關法令規定辦理。
第一項證明文件之格式,由財政部定之。
臺灣地區代理人或代表人依本辦法之規定申報之資料或出具之證明文件,其內容不實者,應依本條例、所得稅法及稅捐稽徵法等相關規定辦理。

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