Land Tax Act Article 39-3

To apply for non-taxable status of land value increment tax in accordance with Paragraph 1 of the preceding article, the right holder and obligor must indicate "agricultural land" on the Land Value Declaration Form at the time of declaring the present value of the land transfer. If this indication is not made, a supplementary application may be made before the expiration of the land value increment tax payment period. Applications submitted after this period will not be considered. However, if the present value of the land transfer can be declared solely by the right holder as per the regulations, the right holder may independently submit the application.For the transfer of agricultural land, where the declaration of the present value of the land transfer is not required, the competent tax authority shall notify both the right holder and the obligor. If the present value of the land transfer is to be declared solely by the right holder, the obligor shall be notified. If the conditions for exemption from the land value increment tax under Paragraph 1 of the preceding article are met, the right holder or obligor must submit the application within thirty days from the day following receipt of the notification. Applications submitted after this period will not be considered for exemption from the land value increment tax.
中文原文 土地稅法第39-3條
依前條第一項規定申請不課徵土地增值稅者,應由權利人及義務人於申報土地移轉現值時,於土地現值申報書註明農業用地字樣提出申請;其未註明者,得於土地增值稅繳納期間屆滿前補行申請,逾期不得申請不課徵土地增值稅。
但依規定得由權利人單獨申報土地移轉現值者,該權利人得單獨提出申請。
農業用地移轉,其屬無須申報土地移轉現值者,主管稽徵機關應通知權利人及義務人,其屬權利人單獨申報土地移轉現值者,應通知義務人,如合於前條第一項規定不課徵土地增值稅之要件者,權利人或義務人應於收到通知之次日起三十日內提出申請,逾期不得申請不課徵土地增值稅。

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