International Tax After Trump

Roundtable 20 May 2026 13-15 CEST (Central European Summer Time)  Hybrid event

About

The United States plays an important role in international tax policy as it is headquarters of many large MNEs across the world. However, since the Second Term of Trump, the United States has retreated from multilateral tax initiatives. Two examples: withdrawal from the intergovernmental negotiations of the UN Framework Tax Convention and introduction of a parallel regime to the Global Minimum Tax throughout the introduction of the side-by-side agreement. This roundtable addresses how the international tax system is shaping after Trump and what happens next from an academic perspective and from the perspective of different geographic regions.

Speakers

13:00-13:10 Setting the Scene Irma Mosquera, Professor Tax Governance, GLOBTAXGOV– Leiden University

13:10-13:30 Peter Hongler, Professor, University of St. Gallen, Switzerland. Reflections from a Swiss Perspective and the future of Pillar 2 After Trump

13:30-13:50 Allison Christians, H. Heward Stikeman Chair in Tax Law at the McGill University Faculty of Law, Quebec, Canada. Collapse, Boomerang, or Hail Mary? International Tax After Trump

13:50-14:00 Q & A

14:00-14:20 Suranjali Tandon, Associate Professor, National University of Public Finance and Policy, India. Reflections from an Indian Perspective and the future of Pillar 2 After Trump.

14:20-14:40 Tarcísio Diniz Magalhães, Associate Professor, Faculty of Law, Antwerp University. America Sues First: Trump, Corporate Lawfare, and the Uncertain Future of Global Minimum Taxation

14:40-15:00 Q & A

Registration is free. Link to registration here

Venue

Online via ZOOM. When registered, you will receive the zoom link.

Onsite Leiden Law School, KOG Building Room B041