The Act Governing Local Tax Regulations Article 8

Taxes surcharged in accordance with Article 5 shall be collected simultaneously by the collection agency of the tax to which the surcharge is applied.The matters concerning the collection mentioned in the preceding paragraph shall be agreed upon through consultation between the commissioning agency and the commissioned agency. The collection fees shall be determined separately by the MOF.
中文原文 地方稅法通則第8條
依第五條規定附加徵收之稅課,應由被附加稅課之徵收機關一併代徵。
前項代徵事項,由委託機關與受託機關會商訂定;其代徵費用,由財政部另定之。

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