Act on Property-Declaration by Public Servants Article 16

For the declared public servants being discharged from the positions obliged for property declarations as prescribed in Article 2, such persons’ declared materials shall be preserved for five years and destroyed duly. But for judicial and control agencies notifying to preserve further according to law, it is not applicable.The five year preservation as prescribed in the preceding paragraph shall be initiated from the following day after the day the declared public servants being discharged from the positions obliged for property declarations.
中文原文 公職人員財產申報法第16條
申報人喪失第二條所定應申報財產之身分者,其申報之資料應保存五年,期滿應予銷毀。
但經司法機關或監察機關依法通知留存者,不在此限。
前項期限,自申報人喪失所定應申報財產身分之翌日起算。

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