Inter-Nation Equity And The Regulation of Tax Competition via the Global Minimum Tax Rule: A Case for Improvement

Abstract

The Organization for Economic Co-operation and Development (OECD) is an institution that influences policymaking in international tax law, and it is changing the international tax architecture to deal with tax competition by encouraging countries to adopt a global minimum tax rule. This emerging rule – called Pillar Two in international tax circles – is inadequate for dealing with poverty and inequality in an asymmetrical global context. The rule is premised on the notion and argument that tax competition is a problem for international tax law. Notwithstanding, there is existing research and evidence to show that tax competition can also be a solution to the enormous challenge of poverty and inequality as it can have a redistributive effect. This is a valuable factor amid the inefficiently asymmetrical global society with extreme poverty in many countries and enormous wealth in a few others.This article submits that the Pillar Two minimum tax rule – the Global Anti-Base Erosion (GloBE) Rules encompassing the income inclusion rule (IIR), undertaxed payment/profit rule (UTPR), and qualified domestic minimum top-up tax (QDMTT) – should incorporate inter-nation equity to prevent exacerbating global inequality and poverty. Pillar Two intensifies these for at least two reasons: (1) it restricts the positive redistributive effects of tax competition on an inefficiently asymmetrical global society, and (2) it encourages tax competition more suited for high-income countries (HICs) and less suited for those that are low-income countries (LICs). There is latitude to incorporate a differentiated principle deriving from inter-nation equity into this new Pillar Two rule designed to regulate tax competition globally. This proposal requires that the emerging rule be disenabled in certain circumstances to enable LICs to choose whether to apply the rule without being worse off. The article’s proposal seeks to allow LICs room for effective tax competition needed to attain sustainable development goals.