Where an offshore banking unit has its head office located within the territory of the Republic of China, in addition to filing the tax return in accordance with Article 73-1 of the Act, its head office shall file the annual income tax return for the other income of the unit jointly in accordance with Paragraph 2, Article 3 and pay profit-seeking enterprise income tax in accordance with the Act, the Offshore Banking Act, and the Income Basic Tax Act.
For sharing expense with institutions operating at the same location, the offshore banking unit, the offshore securities branch, or the offshore insurance branch shall submit the proposed apportion method to the tax office in charge for reference within three months after the date the offshore banking unit, the offshore securities branch, or the offshore insurance branch begins operation.