The Act Governing Electronic Payment Institutions Article 23
For onshore businesses conducted by specialized electronic payment institutions, the payments between contracted institutions shall be settled and cleared in NTD.For cross-border businesses, businesses specified in Subparagraph 4, Paragraph 1, Article 4 hereof, or related activities approved by the competent authority in accordance with Paragraph 2, Article 15 operated by specialized electronic payment institutions, the payments between onshore users and contracted institutions may be settled and cleared in NTD or foreign currency, whereas offshore payments shall be collected, paid, settled, and cleared in foreign currency.Specialized electronic payment institutions that operate businesses specified in the preceding paragraph and the subparagraphs of Paragraph 1 and Paragraph 2, Article 4 involving exchanges between different currencies shall disclose the exchange rates offered by the bank which they use as reference and the names of cooperating banks on their websites.