Regulations Governing Application of Agreements for the Avoidance of Double Taxation with Respect to Taxes on Income Article 17

Pursuant to the provisions in association with the term income from employment under a DTA, where a resident of the other Contracting State is present in the territory of the ROC for a period or periods aggregated not exceeding a certain duration of time, and based on which that resident of the other Contracting State is entitled to the reduction of or exemption from income tax, the computation of the duration of stay of that resident of the other Contracting State shall be determined by the aggregation of days commencing from the next day of the arrival and ending on the day of departure, and include weekends, national holidays, annual leave, personal leave, sick leave, or bereavement leave, the departure day and temporary cessation of work due to strikes, training, etc.Pursuant to the provisions in association with the term income from employment under a DTA, where the calculation of the duration of stay for a period or periods aggregated mentioned in the preceding paragraph is formulated to be measured within any twelve-month period commencing or ending in the relevant year concerned, the said “any twelve-month period commencing or ending in the relevant year concerned” shall refer to any consecutive twelve months within the period from the day that is counting backward from the first day of the relevant year until the completion of a complementary twelve-month period, to the day that is counting forwards from the last day of the relevant year until the completion of a complementary twelve-month period.When calculating the duration of stay of a resident of the other Contracting State for a period or periods aggregated in the territory of the ROC is based on the rules mentioned in the preceding two paragraphs, those days of presence of said resident of the other Contracting State during which such person used the identity of a resident of the ROC and that identity was determined pursuant to the applicable DTA shall not be taken into account to calculate the duration of stay in the ROC.
中文原文 適用所得稅協定查核準則第17條
依所得稅協定有關受僱所得之規定,他方締約國之居住者在中華民國境內持續居留或合計居留期間未超過一定期間,應減免所得稅者,其居留期間之計算,應自其入境之次日起算至出境之日止,包括例假日、國定假日、休假、事假、病假、喪假、出境當日及因罷工、訓練等而未能提供勞務之短暫性停工。
依所得稅協定有關受僱所得之規定,前項持續居留或合計居留期間以於一相關年度中開始或結束之任何十二個月期間計算者,其十二個月期間,應自該相關年度首日起算往前十二個月,至同年度末日起算往後十二個月止之期間內,任何連續十二個月認定之。
依前二項規定計算他方締約國之居住者在中華民國境內持續居留或合計居留期間之天數者,不包括該他方締約國之居住者依適用之所得稅協定認屬中華民國居住者之居留天數。

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