National Health Insurance Act Article 14

The commencement of the insurance shall take effect from the date of occurrence of such qualifications specified in Articles 8 or 9.The termination of the insurance shall take effect from the date of occurrence of the preceding article.
中文原文 全民健康保險法第14條
保險效力之開始,自合於第八條及第九條所定資格之日起算。
保險效力之終止,自發生前條所定情事之日起算。

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