Enforcement Rules of the Government Procurement Act Article 26

The budget that an entity may disclose in the tender notice pursuant to paragraph 3 of Article 27 of the Act means the budget amount available for the payment of contract value. Where an appropriation bill has not been legalized, an estimated amount required for the procurement shall apply.The estimated value that an entity may disclose in the tender notice pursuant to paragraph 3 of Article 27 of the Act means the estimated value of contract award.
中文原文 政府採購法施行細則第26條
機關依本法第二十七條第三項得於招標公告中一併公開之預算金額,為該採購得用以支付得標廠商契約價金之預算金額。
預算案尚未經立法程序者,為預估需用金額。
機關依本法第二十七條第三項得於招標公告中一併公開之預計金額,為該採購之預估決標金額。

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