Tax Collection Act Article 2

The term "taxes" as used under this Act shall refer to all the taxes leviable by the state government, special municipality, county (city) and rural (urban township and township-level city) governments, exclusive of customs duties.
中文原文 稅捐稽徵法第2條
本法所稱稅捐,指一切法定之國、直轄市、縣(市)及鄉(鎮、市)稅捐。
但不包括關稅。

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