Enforcement Rules of the National Health Insurance Act Article 53

The group insurance applicants, when deduct or collect insurance premium for the insured and their dependents according to Subparagraphs 1 or 2 of Paragraph 1 of Article 30, shall make a note at the salary statement (envelope) or issue receipt.
中文原文 全民健康保險法施行細則第53條
投保單位依本法第三十條第一項第一款或第二款規定扣繳或收繳被保險人及其眷屬負擔之保險費時,應於被保險人之薪資單(袋)註明或掣發收據。

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