Enforcement Rules of the Customs Act Article 8

The amount of an appropriate deposit referred to in Article 18, Paragraph 2, of the Act shall be either the amount equivalent to the Customs duty payable on the imported goods as calculated under the applicable tariff number or the value tentatively assessed by Customs.The amount of an appropriate deposit referred to in Article 18, Paragraph 3, of the Act shall be calculated in accordance with the following provisions:1. Where the duty-payer fails to submit the relevant certificates for deduction or exemption from Customs duty in time but will submit those follow-up, it shall be the full amount of Customs duty payable.2. Where the imported goods fall under the scope of import-permissible items, and the duty-payer fails to apply for issuance of an import permit in time and it is necessary for him/her to apply for clearance and prompt delivery, it shall be the amount equivalent to the Customs value thereof assessed by Customs.3. Where Customs considers it necessary to examine and release imported goods in advance against the payment of a deposit, it shall be the amount determined by Customs.
中文原文 關稅法施行細則第8條
本法第十八條第二項所稱相當金額,指按海關擬適用之稅則號別或海關暫行核估之價格,核計相當於該貨物應繳稅款之數額。
本法第十八條第三項所稱相當金額,依下列規定計算之:
一、納稅義務人未即時檢具減、免關稅有關證明文件而能補正者,指相當於全部應繳稅款之數額。
二、進口貨物屬准許進口類,納稅義務人未及申請簽發輸入許可文件,而有即時報關提貨之需要者,指相當於海關核定進口貨物完稅價格之數額。
三、其他經海關認為有繳納保證金,先行驗放之必要者,指由海關視案情需要所核定之數額。

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