The Enforcement Rules of the Land Tax Act Article 51

The fees deductible from the declared transfer value according to Subparagraph 2, Paragraph 1 of Article 31 of the Act shall include the land improvement fees, the paid construction benefit charge, the total land reconsolidation cost-sharing fees and the total amount of the current land value of the donated land for public facility due to land use conversion. Lands purchased at their price with the land improvement fees and construction benefit charge already compensated by the Government in accordance with Article 32 of the Equalization of Land Right Act shall not be included.For deduction of said fees according to the provisions under the preceding paragraph, the land owner shall submit the construction benefit charge payment receipt or the certificate of the total amount of the current land value of the donated land for public facility due to land use conversion and the land improvement fee certificate issued by the competent authority of Municipality or County (City) government or the total land reconsolidation cost-sharing certificate issued by the land administration authority to the competent taxation authority for application.
中文原文 土地稅法施行細則第51條
依本法第三十一條第一項第二款規定應自申報移轉現值中減除之費用,包括改良土地費用、已繳納之工程受益費、土地重劃負擔總費用及因土地使用變更而無償捐贈作為公共設施用地其捐贈土地之公告現值總額。
但照價收買之土地,已由政府依平均地權條例第三十二條規定補償之改良土地費用及工程受益費不包括在內。
依前項規定減除之費用,應由土地所有權人檢附工程受益費繳納收據、直轄市或縣(市)主管機關發給之改良土地費用證明書或地政機關發給之土地重劃負擔總費用證明書及因土地使用變更而無償捐贈作為公共設施用地其捐贈土地之公告現值總額之證明文件,向主管稽徵機關提出申請。

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