Act for Implementation of J.Y. Interpretation No. 748 Article 14

The payment for living expenses of the household shall be shared by parties of a union as stated in Article 2, according to each party's economical ability, household labor or other conditions unless otherwise provided for by law or mutual agreement.Parties to a union will be jointly liable for debts incurred by the expenses of the preceding paragraph.
中文原文 司法院釋字第七四八號解釋施行法第14條
第二條關係雙方當事人之家庭生活費用,除法律或契約另有約定外,由雙方當事人各依其經濟能力、家事勞動或其他情事分擔之。
因前項費用所生之債務,由雙方當事人負連帶責任。

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