Act Governing Retirement, Severance, and Bereavement Compensation Under the Individual Account System for the Teaching and Other Staff of Public Educational Institutions Article 28

If a staff member with less than 15 full years of service in employment retires in accordance with the provisions of this Act, unless other provisions of this Act apply, the staff member shall receive a lump-sum retirement payment.If a staff member with 15 full years of service in employment retires in accordance with the provisions of this Act, unless other provisions of this Act apply, the staff member may select one of the forms of retirement payment set out in Paragraph 1 of the preceding article.
中文原文 公立學校教職員個人專戶制退休資遣撫卹條例第28條
教職員任職年資未滿十五年而依本條例辦理退休者,除本條例另有規定外,應支領一次退休金。
教職員任職年資滿十五年而依本條例辦理退休者,除本條例另有規定外,其退休金由教職員依前條第一項所定退休金種類,擇一支領。

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