The Compulsory Enforcement Act Article 68-2
Where the winning bidder fails to pay the full amount of the auction price, the enforcement court shall hold the auction again. At the second auction, the original winning bidder may not bid again. Where the auction price at the second auction is lower than the price at the original auction and the costs of holding the second auction combined, the original winning bidder shall pay the difference. The difference in the preceding paragraph shall be determined by the enforcement court by a ruling pursuant to its own authority.Where the deposit provided by the original winning bidder is not sufficient to cover the difference, the enforcement court may carry out the compulsory enforcement against the original winning bidder pursuant to the ruling in the preceding paragraph.
中文原文 強制執行法第68-2條
拍定人未繳足價金者，執行法院應再拍賣。
再拍賣時原拍定人不得應買。
如再拍賣之價金低於原拍賣價金及因再拍賣所生之費用者，原拍定人應負擔其差額。
前項差額，執行法院應依職權以裁定確定之。
原拍定人繳納之保證金不足抵償差額時，得依前項裁定對原拍定人強制執行。
再拍賣時原拍定人不得應買。
如再拍賣之價金低於原拍賣價金及因再拍賣所生之費用者，原拍定人應負擔其差額。
前項差額，執行法院應依職權以裁定確定之。
原拍定人繳納之保證金不足抵償差額時，得依前項裁定對原拍定人強制執行。