Regulations for the Implementation of Annuity Insurance under the Labor Pension Act Article 20

The monthly allocation of wages for the payment of annuity insurance premium by employers shall be made based on the monthly wages of workers in accordance with the standards of the Monthly Contribution Classification Table of Labor Pension under Paragraph 5 of Article 14 of the Act, and shall be reported to the insurers.If the monthly wages of workers are not in a fixed amount, the report shall be made based on the average wages of the last three months; if the wages of new workers have not been ascertained, the report shall be made temporarily based on the wages of workers in the same category of work.Where workers participating in annuity insurance are concurrently insured by labor insurance or national health insurance, except those whose total amount of monthly wages is below the floor of the "Table of Grades of Insured Salary" of labor insurance, the amount of monthly allocation of wages shall not be less than the insurance wages of labor insurance or the insurance amount of the national health insurance.
中文原文 勞工退休金條例年金保險實施辦法第20條
雇主為勞工提繳年金保險費之月提繳工資,應按勞工每月工資,依本條例第十四條第五項月提繳分級表之標準提繳,並向保險人申報。
勞工每月工資不固定者,以最近三個月工資之平均為準申報;新進勞工工資尚未確定者,暫以同一工作等級勞工之工資為準申報。
參加年金保險之勞工同時為勞工保險或全民健康保險之被保險人者,除每月工資總額低於勞工保險投保薪資分級表下限者外,其月提繳工資金額不得低於勞工保險投保薪資或全民健康保險投保金額。

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