Act Governing Relations between the People of the Taiwan Area and the Mainland Area Article 25-1

For any individual, juristic person, organization, or other institution of the Mainland Area or any company it invests in any third area permitted to invest in the Taiwan Area in accordance with the provisions of Article 73, the tax payable for the dividends distributed to it by the company in the Taiwan Area or surplus distributed to a partner shall not be subject to the provisions of tax return filing provided for in the Income Tax Act provided that the tax withholder designated by the provisions of the Income Tax Act, upon payment, withholds twenty percent of the amount payable or distributable. However, any individual of the Mainland Area residing and staying in the Taiwan Area for at least 183 days in a taxable year shall file consolidated income tax return in accordance with the provisions of Paragraph 2 of the preceding Article.Where any director, manager, or technical personnel of any juristic person, organization, or other institution which is permitted to make any investment in the Taiwan Area in accordance with the provisions of Article 73, resides and stays in the Taiwan Area for less than 183 days in a taxable year because of its engagement in investment, factory building, market survey or any other temporary work, its salary income paid outside the Taiwan Area by the referred juristic person, organization, or other institution shall not be deemed its income derived from sources in the Taiwan Area.
中文原文 臺灣地區與大陸地區人民關係條例第25-1條
大陸地區人民、法人、團體、其他機構或其於第三地區投資之公司,依第七十三條規定申請在臺灣地區投資經許可者,其取得臺灣地區之公司所分配股利或合夥人應分配盈餘應納之所得稅,由所得稅法規定之扣繳義務人於給付時,按給付額或應分配額扣繳百分之二十,不適用所得稅法結算申報之規定。
但大陸地區人民於一課稅年度內在臺灣地區居留、停留合計滿一百八十三日者,應依前條第二項規定課徵綜合所得稅。
依第七十三條規定申請在臺灣地區投資經許可之法人、團體或其他機構,其董事、經理人及所派之技術人員,因辦理投資、建廠或從事市場調查等臨時性工作,於一課稅年度內在臺灣地區居留、停留期間合計不超過一百八十三日者,其由該法人、團體或其他機構非在臺灣地區給與之薪資所得,不視為臺灣地區來源所得。

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