Referendum Act Article 5

The funds required for conducting a referendum shall be appropriated by the central government, municipal governments, and county (city) governments in accordance with the law.
中文原文 公民投票法第5條
辦理公民投票之經費,分別由中央政府、直轄市政府、縣(市)政府依法編列預算。

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