The Equalization of Land Rights Act Article 41

For self-use residential land sold by title owner, the land value increment tax shall be 10% of the total incremental value of the land for urban land up to 3 acres or for non-urban land up to 7 acres; the total incremental value for part of land in excess of 3 acres or 7 acres shall be taxed according to the rate schedule stipulated in the foregoing article.The preceding provision does not apply to land that was used for business purpose or rented in the last year before its sale.The provisions in the first paragraph hereof do not apply to land where the assessed value of the self-use residence thereon is less than 10% of the assessed present value of the land, unless the construction of the residence has been completed for more than one year.Landowner may use the tax rate provided in the first paragraph hereof for calculation of land value increment tax once in his or her lifetime.In the case that the landowner sells another self-use residential land after the terms of the preceding paragraph has been exhausted, the land value increment tax imposed thereon shall not be governed by the once in the lifetime restriction as provided in the preceding paragraph if the following conditions are met:1) That the amount of the urban land sold doesn’t not exceed an area of 1.5 acres and that of non-urban land sold doesn’t not exceed 3.5 acres;2) At the time of selling, the landowner, his or her spouse, and his or her minor children have no other house except the self-use residence sold;3) The landowner has owned the self-use residential land for a period of over 6 years before its sale;4) The landowner, his or her spouse, and his or her minor children have maintained their household registration at the location of on the self-use residential land and owned the self-use residence for a period of consecutive 6 years before its sale;5) The land has never been used for business purposes or rented in the last 5 years before its sale.
中文原文 平均地權條例第41條
土地所有權人出售其自用住宅用地者,都市土地面積未超過三公畝部分或非都市土地面積未超過七公畝部分,其土地增值稅統就該部分之土地漲價總數額按百分之十徵收之;超過三公畝或七公畝者,其超過部分之土地漲價總數額,依前條規定之稅率徵收之。
前項土地於出售前一年內,曾供營業使用或出租者,不適用前項規定。
第一項規定於自用住宅之評定現值不及所占基地公告土地現值百分之十者,不適用之。
但自用住宅建築工程完成滿一年以上者,不在此限。
土地所有權人,依第一項規定稅率繳納土地增值稅者,以一次為限。
土地所有權人適用前項規定後,再出售其自用住宅用地,符合下列各款規定者,不受前項一次之限制:
一、出售都市土地面積未超過一‧五公畝部分或非都市土地面積未超過三‧五公畝部分。
二、出售時土地所有權人與其配偶及未成年子女,無該自用住宅以外之房屋。
三、出售前持有該土地六年以上。
四、土地所有權人或其配偶、未成年子女於土地出售前,在該地設有戶籍且持有該自用住宅連續滿六年。
五、出售前五年內,無供營業使用或出租。

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