Anti-Money Laundering Regulations for Cross-border Declaration and Reporting Article 6
The original data or related electronic files of the customs declarations and reports processed pursuant to the Regulations shall be kept for a minimum period of five years from the next date of the declaration or seizure.
中文原文 洗錢防制物品出入境申報及通報辦法第6條
海關對於依本辦法申報及通報之原始資料及相關電子檔案，應自申報或查獲之翌日起，保存五年。