Act for Promotion of Private Participation in Infrastructure Projects Article 36

A private institution participating in a major infrastructure project may be exempted from profit-seeking enterprise income tax for a maximum period of five (5) years from the year in which taxable income is derived after the infrastructure begins operations.For a major infrastructure project, the private institution as referred to in the preceding paragraph may, within four (4) years from the year in which taxable income is derived after the infrastructure project begins operations, elect at its sole discretion to defer the commencement date of the tax exemption period, provided that the maximum period of such deferral is three (3) years, and the commencement date of such deferred tax-exemption period is the first day of a fiscal year.The scope and the period of the tax exemption as referred to in Paragraph 1, and the authority granting the approval, the deadline and the procedure for application, the implementation period, supplemental tax payment, and other relevant matters shall be prescribed by the competent authority in conjunction with the central authorities in charge of the relevant industries.
中文原文 促進民間參與公共建設法第36條
民間機構得自所參與重大公共建設開始營運後有課稅所得之年度起,最長以五年為限,免納營利事業所得稅。
前項之民間機構,得自各該重大公共建設開始營運後有課稅所得之年度起,四年內自行選定延遲開始免稅之期間;其延遲期間最長不得超過三年,延遲後免稅期間之始日,應為一會計年度之首日。
第一項免稅之範圍及年限、核定機關、申請期限、程序、施行期限、補繳及其他相關事項之辦法,由主管機關會商中央目的事業主管機關定之。

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