I am passionate about helping clients adapt to an ever-transforming global tax environment.

Jason Yen

Principal, International Tax and Transaction Services, Ernst & Young LLP

Thought leader on global tax policy changes. Experienced advisor on complex US tax rules. Outside-the-box thinker.

Jason is a principal in the International Tax and Transaction Services practice based in Ernst & Young LLP’s National Tax Department in Washington, DC. 

With his in-depth tax knowledge, he provides insights to organizations in the fast-changing international tax landscape. 

Prior to joining the firm, Jason was the Associate International Tax Counsel for the U.S. Department of the Treasury’s Office of Tax Policy. During his tenure, he participated in many significant international tax developments, including serving as the lead negotiator to the Organisation for Economic Co-operation and Development’s Pillar Two minimum tax project and leading the regulatory implementation of several key aspects of the Tax Cuts and Jobs Act of 2017. 

Before joining the Treasury Department, Jason worked in the tax practice of an international law firm in Washington, DC.

Jason earned his BSE from Princeton University and his JD from Harvard Law School. 

How Jason is building a better working world

International tax is one of the most complex areas to practice in, but I love breaking it down so that even people who are new to the area can understand it. International tax has become incredibly dynamic in recent years, and I am passionate about mentoring and developing a new generation of international tax lawyers who are willing to challenge traditional ways of thinking in order to keep up with an ever-transforming global tax environment.


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