Income Tax Act Article 2
For any individual having income from sources in the Republic of China, the individual income tax shall be levied in accordance with this Act on his income derived from sources in the Republic of China.Unless otherwise provided in this Act, in the case of an individual who is a nonresident in the Republic of China but who has derived income from sources in the Republic of China, income tax payable by him on all such income shall be withheld and paid at the respective sources.
中文原文 所得稅法第2條
凡有中華民國來源所得之個人，應就其中華民國來源之所得，依本法規定，課徵綜合所得稅。
非中華民國境內居住之個人，而有中華民國來源所得者，除本法另有規定外，其應納稅額，分別就源扣繳。
非中華民國境內居住之個人，而有中華民國來源所得者，除本法另有規定外，其應納稅額，分別就源扣繳。