A United Nations proposal would replace the current system of taxing each multinational subsidiary separately with a global unitary tax system. A corporation’s worldwide profits would first be combined into one total and then divided among countries according to a formula measuring where it employs workers and where its customers purchase goods and services. Each country would apply its own corporate tax rate to the portion assigned to it, regardless of where the company legally reported the profit.
Tax Justice Network estimates that this reallocation would produce an additional $500 billion in annual corporate tax revenue worldwide. It would be redistributed among governments, creating major winners while stripping revenue from countries whose economies currently benefit from corporate headquarters, intellectual property, financial services, or low-tax structures.
Ireland would suffer one of the largest losses, surrendering an estimated $11.15 billion annually, or 81.9% of the multinational corporate tax revenue measured by the study. Hong Kong would lose $9.37 billion, or 75.7%; Singapore $8 billion, or 69.2%; Switzerland $5.43 billion, or 42%; the Netherlands $3.16 billion, or 28.4%; and Malta $3.04 billion. Bermuda would lose $489 million, the British Virgin Islands $496 million, Puerto Rico $547 million, Jersey $510 million, and Mauritius $152 million.
These jurisdictions currently tax profits that multinational corporations book within their borders despite having relatively little employment or customer activity there. The UN formula would disregard where those profits are legally reported and redistribute them toward countries where the company’s workers and customers are located.