Negotiations for a new United Nations Global Tax Treaty have entered a critical phase following the conclusion of the fifth round of talks in New York, as developing nations demand fairer rules to combat inequality and climate change. The proposed UN Framework Convention on International Tax Cooperation seeks to overhaul the current global tax system to better address the climate, nature, and inequality crises.
The discussions have transitioned from abstract concepts to more concrete proposals regarding the allocation of taxing rights over multinational profits. This shift could potentially challenge the current international tax framework, which is largely shaped by the Organization for Economic Cooperation and Development.
Nations within the Global South have displayed significant unity throughout the negotiations. Many have advocated for more robust articles that would allow for the taxation of high-net-worth individuals and more effective measures against harmful tax practices. Some emerging and middle-income economies have also played a bridging role, connecting the treaty to wider United Nations agreements concerning climate change and biological diversity.
However, progress faces opposition from several wealthy nations. While many European countries advocate for climate action in other international forums, they have been noted for resisting new provisions in these tax negotiations. There are concerns that these nations are attempting to defend the existing status quo regarding the taxation of corporations and the super-rich.
Momentum is also building around environment-aligned taxation. Several countries in the Global South have signaled intentions to introduce new proposals to strengthen provisions related to sustainable development and environmental taxes. These developments could provide the legal basis for global progressive polluter taxes, ensuring that national fiscal policies support international environmental agreements.
The taxation of high-net-worth individuals remains a central point of contention, with significant cross-regional cooperation observed among G77 countries. There is also broad support for including civil society and other stakeholders in future meetings to increase transparency and hold nations to account.
The negotiation process for the treaty is scheduled to continue until mid-2027. The sixth round of negotiations will be held in Nairobi from November 30 to December 11, 2026, with three subsequent rounds planned for the following year.
