The purpose of this brief is to correct and respond to two arguments in Petitioner-Appellee Altera's petition for rehearing en banc and briefs of amici supporting the petition for rehearing. First, Treasury's regulation requiring cost sharing of stock-based compensation and the Ninth Circuit...

Stanley Surrey (1910-1984) was arguably the most important tax scholar of his generation. Surrey was a rare combination of an academic (Berkeley and Harvard law schools, 1947-1961 and 1969-1981) and a government official (Tax Legislative Counsel, 1942-1947; Assistant Secretary for Tax Policy,...

Customary international law is law that “results from a general and consistent practice of states followed by them from a sense of legal obligation.” “International agreements create law for states parties thereto and may lead to the creation of customary international law when such...

Since the 1990s, the US tax treaty network has expanded to include most large developing countries. However, there remains a glaring exception: The US only has two tax treaties in Latin America (Mexico and Venezuela), and one pending tax treaty (Chile). The traditional explanation for why the US...

In 1993, I published a paper advocating a destination-based corporate income tax (DBCT) (Avi-Yonah, 1993). Under DBCT, multinational enterprises (MNEs) would be treated as unitary businesses and taxed based on where they sell their goods or services, i.e., on a destination basis rather than (as...

Any proposal for adoption of a unitary tax (UT) system ought to clear the first and most common hurdle of its compatibility, or lack of it, with the current norms in the international tax system – specifically, the current tax treaty network. This paper argues that unitary taxation is...

A recent NY Times headline summarizes one of the biggest economic impacts of the current pandemic: “Big Tech Could Emerge From Coronavirus Crisis Stronger Than Ever.” At a time when most American citizens and businesses suffer catastrophic economic damage from the Coronavirus Recession, some...

US international tax law is commonly conceived as developed in the US and influencing the development of other countries' international tax law. This paper will argue that in the case of the TCJA, the US legislation was heavily influenced by the OECD BEPS project, and that the continuing OECD...

The current system of taxing the income of multinational firms in the United States is flawed across multiple dimensions. The system provides an artificial tax incentive to earn income in low-tax countries, rewards aggressive tax planning, and is not compatible with any common metrics of...