Act Governing the Allocation of Government Revenues and Expenditures Article 7

Legislation by special municipalities, counties or county-level cities, and townships/cities for the purpose of levying taxes is restricted to legislation for which this Act expressly provides, and shall conform with the Act Governing Local Tax Regulations.
中文原文 財政收支劃分法第7條
直轄市、縣(市)及鄉(鎮、市)立法課徵稅捐,以本法有明文規定者為限,並應依地方稅法通則之規定。

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