Charges And Fees Act Article 14

The collection of charges and fees shall be made when the person obligated to pay such charges and fees files his/her/its application for the matters set forth in Article 7 or for the use of the services set forth in Article 8. However, if charges and fees are due when the matters or services applied for are concluded or provided, or the payment of such charges and fees is notified by the Agency/School pursuant to applicable laws and regulations, the time limit for payment shall be set by the executive authority in charge of the concerned matter.
中文原文 規費法第14條
規費於繳費義務人申請辦理第七條各款事項或使用第八條各款項目時徵收之。
但依其性質係於完成申請辦理事項後,始予徵收者,或屬於各機關學校依法令規定通知繳納者,由業務主管機關訂定繳納期限。

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