Michael Mundaca is Co-Director of the National Tax Department and the Americas Tax Center at Ernst & Young LLP.

Prior to re-joining Ernst & Young LLP in 2011, Michael served at the U.S. Treasury Department as the Assistant Secretary for Tax Policy, at the appointment of President Obama, heading the Treasury Department’s Office of Tax Policy and advising Treasury Secretary Geithner on all matters relating to taxation. Upon leaving Treasury, he received the Alexander Hamilton Award, the Treasury Department’s highest honor.

Prior to his appointment as Assistant Treasury Secretary, Michael served from 2007-2009, during both the Bush and Obama Administrations, as the Deputy Assistant Treasury Secretary for International Tax Affairs. He represented the United States at various international forums, including the Organisation for Economic Co-operation and Development (OECD), as well in the negotiation of various tax treaties and other international agreements.

Michael also served at the Treasury Department from 1997-2002, during both the Clinton and Bush Administrations, in Tax Policy’s Office of the International Tax Counsel, leaving as Deputy International Tax Counsel.

From 2002-2007, Michael was a principal in the International Tax Services group of Ernst & Young LLP’s National Tax Department in Washington, DC. Prior to joining Treasury in 1997, he worked at Sullivan & Cromwell, a New York law firm.

Michael holds a B.A. from Columbia University, an M.A. from the University of Chicago, a J.D. from the University of California, Berkeley, and an LL.M. from the University of Miami.