Christian Athanasoulas

Tax Practice Leader – Services, KPMG LLP, and Global Head of International Tax and M&A Tax,

KPMG International


Christian has been with KPMG LLP since 2000 - one of the world’s leading professional services firms - with extensive International Tax and M&A Tax experience where he advises the world’s largest corporations on the U.S. tax consequences of cross-border business transactions with involvement in more than 30 countries.  During his career at KPMG LLP, he has held various senior leadership positions and is recognized for his ability to enhance trust, drive innovation and tackle complex business issues. He also serves on the U.S. Tax Executive Committee designed to help drive the strategic direction of the firm’s tax practice.

Christian is currently the U.S. Tax Practice Leader – Services for KPMG LLP’s Tax practice focused on leading the growth and operations of the firm’s various tax services. His responsibilities span across federal, international, state and local tax, economic and valuation services, mergers and acquisitions tax, and global mobility services, which encompasses a team of nearly 9,000 partners and professionals.  

Christian is also the Global Head of International Tax and M&A Tax for KPMG International. In this role he works closely with global tax leadership to help implement the strategic vision of the International Tax and M&A Tax practices of member firms across the globe, while serving on the Global Tax Management Leadership Team. Prior to his U.S and International roles, Christian held other leadership positions Including:

  • Latin America Regional Managing Principal, Tax & Legal*, KPMG Americas where he led the KPMG Tax & Legal* Latin America member firm practices that comprised 125 partners and 2,000 professionals across 16 countries.
  • Principal-in-Charge, Tax for New England and Upstate New York, KPMG LLP.

Before joining KPMG LLP, Christian was a tax attorney in the Boston office of Sullivan & Worcester, LLP where he advised clients on the tax consequences of business transactions and represented clients in tax disputes with the IRS.  

Publications and speaking engagements

Christian is the author or co‑author of several tax articles, including:

  • New Tax Law Affects High Tech Companies and Investors, published in Mass. High Tech Journal (1997);
  • Partnerships and Corporate Spin‑Offs, published in Mergers & Acquisitions: The Monthly Tax Journal (2003);
  • Mergers and Acquisitions Column, published Corporate Business Taxation Monthly (2004);
  • The Application of Code Sec. 367 to Code Sec. 304(a)(1) Transactions, published in Corporate Business Taxation Monthly (2006);
  • Transaction Cost Regulations & Their Impact on Your Business, published in the Philadelphia Business Journal Mergers & Acquisitions Supplement (2008); and
  • Tax on Inbound Investment – United States, published in Getting the Deal Through (2017).
  • Christian has spoken at a number of tax conferences throughout the United States, Latin America, Europe, and the Middle East.

Other activities

  • Christian was an adjunct professor of tax law at Villanova University Law School from 2005 through 2010.


* All professional services are provided by the registered and licensed KPMG member firms of KPMG International. KPMG U.S. does not provide legal services, and these services are provided only by KPMG member firms in Latin America that are permitted to do so by law.

  • B.S., Business Administration, Georgetown University

  • J.D., Georgetown University

  • LL.M., Taxation, Boston University

  • M&A Tax and International Tax; Specializes in U.S. Tax consequences of cross-border business transactions; business leadership skills with a focus on strategic planning, execution and change management