Regulations for Cultural and Arts Procurements Article 13

Organizations shall take note of vendors’ contract execution and labor expenditure to establish reasonable payment installments and percentages.Where a case is being carried out over a period of more than six months, payment shall in principle be in installments.Where advance payment is agreed to as part of contracted payment, in principle the amount shall not be less than 20 percent of the total contracted amount or total estimate; the same shall apply to the first installment.In principle, the terminal payment shall not exceed 30 percent of the total contracted amount or total estimate.For cases of advance payment as in Paragraph 3, regulations stipulation the non-provision of an advance payment guarantee may be considered depending on the circumstances of the case.
中文原文 文化藝術採購辦法第13條
機關應注意廠商履約之工作、勞動條件及投入經費之情形,訂明合理之付款期程及比率。
案件履約期限逾六個月者,契約價金以分期付款為原則。
契約價金有支付預付款者,以不低於契約總額或預估給付總額之百分之二十為原則;分期付款之第一期款,亦同。
契約價金給付之最後一期,以不高於契約總額或預估給付總額之百分之三十為原則。
第三項有支付預付款者,可視個案情形規定免收預付款還款保證金。

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