Additional Articles of the Constitution of the Republic of China Article 8

The remuneration or pay of the members of the Legislative Yuan shall be prescribed by law. Except for general annual adjustments, individual provisions on increase of remuneration or pay shall take effect starting with the subsequent Legislative Yuan.
中文原文 中華民國憲法增修條文第8條
立法委員之報酬或待遇,應以法律定之。
除年度通案調整者外,單獨增加報酬或待遇之規定,應自次屆起實施。

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