Act Governing the Choice of Law in Civil Matters Involving Foreign Elements Article 20
(1) The applicable law regarding the formation and effect of a juridical act which results in a relationship of obligation is determined by the intention of the parties.(2) Where there is no express intention of the parties or their express intention is void under the applicable law determined by them, the formation and effect of the juridical act are governed by the law which is most closely connected with the juridical act.(3) Where among the obligations resulting from a juridical act there is a characteristic one, the law of the domicile of the party obligated under the characteristic obligation at the time he /she undertook the juridical act is presumed to be the most closely connected law. However, where a juridical act concerns immovable property, the law of the place where the immovable property is located is presumed to be the most closely connected law.
中文原文 涉外民事法律適用法第20條
法律行為發生債之關係者,其成立及效力,依當事人意思定其應適用之法律。
當事人無明示之意思或其明示之意思依所定應適用之法律無效時,依關係最切之法律。
法律行為所生之債務中有足為該法律行為之特徵者,負擔該債務之當事人行為時之住所地法,推定為關係最切之法律。
但就不動產所為之法律行為,其所在地法推定為關係最切之法律。
當事人無明示之意思或其明示之意思依所定應適用之法律無效時,依關係最切之法律。
法律行為所生之債務中有足為該法律行為之特徵者,負擔該債務之當事人行為時之住所地法,推定為關係最切之法律。
但就不動產所為之法律行為,其所在地法推定為關係最切之法律。