The 2017 US tax legislation - widely referred to as the Tax Cut and Jobs Act (TCJA) - fundamentally transformed the US system of international taxation. It ostensibly ended worldwide taxation but introduced, for instance, a new tax on "Global Intangible Low-Taxed Income" (GILTI). This paper...

The terms “enterprise,” “business” and “business profits” are ubiquitous in U.S. and international tax law yet they are often ill-defined and under-theorized, especially in their interaction with other regulatory areas. This U.S. Report, commissioned for a comparative volume on the...

This paper — prepared for a symposium held at Brooklyn Law School on October 23, 2015 on Reconsidering the Tax Treaty — addresses the treaty compatibility aspect of proposals for reforming the U.S. international tax system. Finding that a reform proposal is treaty compatible obviates the...

The last time someone wrote comprehensively about permanent establishment in the United States, the catchwords of the day were Mayaguez, Watergate, and Squeaky Fromme. At that time, there were only nine U.S. cases and thirteen revenue rulings addressing permanent establishment. Perhaps not...

This work undertakes a comprehensive analysis of the U.S. state experience under formulary apportionment of corporate income. While formulary apportionment eliminates the possibility of shifting income across states through accounting strategies that manipulate where income is booked, it may...