PayPal is of the largest global payment gateway solutions. They operate in almost every country including Taiwan. It is easy to use and set up. PayPal has a very powerful API which can be used to customise the payments based on the merchants requirement.
Pay2go is a third-party service provider that charges the lowest transaction fees in Taiwan. It charges 2.8% fees on credit card transactions and 1% on electronic transactions.Payment Gateways (Taiwan)