The Enforcement Rules of the Land Tax Act Article 8

When landowners and their spouses and dependent minors file a declaration for more than one self-use residential land parcel within the jurisdiction of the Act, the determination of the single land parcel eligible for the self-use residential land tax rate according to Paragraph 3, Article 17 of the Act shall refer to the landowners’ selection of the place of household registration. If the owner does not make a selection, refer to the highest land value tax for self-use residential land in the year of application; for the same tax amount, the priority of applicability shall be based on the place of household registration of the land owner, the spouse, and the dependent minors.When the landowner, his/her spouse and dependent minors file a self-use residential land declaration separately, refer to the place of household registration that they select together. If a place of household registration is not selected, refer to the highest self-use residential land tax that the landowner and his/her spouse and the dependent minor applied for in the current year.The priority of applicability of the dependent minors regarding the place of household registration in the second part of Paragraph 1 shall be determined by seniority.
中文原文 土地稅法施行細則第8條
土地所有權人在本法施行區域內申請超過一處之自用住宅用地時,依本法第十七條第三項認定一處適用自用住宅用地稅率,以土地所有權人擇定之戶籍所在地為準;土地所有權人未擇定者,以申請當年之自用住宅用地地價稅額最高者為準;其稅額相同者,依土地所有權人、配偶、未成年受扶養親屬戶籍所在地之順序適用。
土地所有權人與其配偶或未成年之受扶養親屬分別以所有土地申請自用住宅用地者,應以共同擇定之戶籍所在地為準;未擇定者,以土地所有權人與其配偶、未成年之受扶養親屬申請當年之自用住宅用地地價稅額最高者為準。
第一項後段未成年受扶養親屬戶籍所在地之適用順序,依長幼次序定之。

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