The Regulations on Collection,Custody and Use of Commercial Port Dues Article 4
Ship port dues for international shipping routes are calculated by one of the followings:1.Collecting on the voyage basis: according to gross registered tonnage of the ship for its every entrance into the port by tariff rate of a half New Taiwan Dollars (NT$0. 5) per gross tonnage.2.Collecting on the time basis: according to gross registered tonnage of the ship before its entrance into the port by tariff rate of one and a half New Taiwan Dollars (NT$1. 5) per gross tonnage in 4 months or , two and a half New Taiwan Dollars (NT$2. 5) per gross registered tonnage in 8 months.Ship port dues for domestic shipping routes are assessed at forty percent of the tariff rate as prescribed in the previous paragraph.
中文原文 商港服務費收取保管及運用辦法第4條
國際航線之船舶，按下列規定擇一繳納船舶商港服務費：
一、按航次逐次繳納：依該船舶每次入港時之總噸位，以每噸新臺幣零點五元計收二、按期繳納：依該船舶總噸位，於船舶入港前，以每噸新臺幣一點五元計收，每期有效期間為自船舶入港之日起算四個月；或以每噸新臺幣二點五元計收，每期有效期間為自船舶入港之日起算八個月。
入港前未繳納者，依前款規定按航次逐次繳納。
國內航線之船舶商港服務費，按前項費率之四成計收。
一、按航次逐次繳納：依該船舶每次入港時之總噸位，以每噸新臺幣零點五元計收二、按期繳納：依該船舶總噸位，於船舶入港前，以每噸新臺幣一點五元計收，每期有效期間為自船舶入港之日起算四個月；或以每噸新臺幣二點五元計收，每期有效期間為自船舶入港之日起算八個月。
入港前未繳納者，依前款規定按航次逐次繳納。
國內航線之船舶商港服務費，按前項費率之四成計收。