David E. Sites

David serves as National Managing Partner of Grant Thornton’s Washington National Tax Office (WNTO), where he is responsible for all technical areas of growth, delivery and talent development. He leads the continued growth and evolution of WNTO and helps guide the firm’s response to significant legislative, regulatory and technical tax developments.

With more than 25 years of public accounting experience, David is recognized for his deep expertise in international taxation and complex cross-border matters. He helps multinational organizations interpret changing tax rules, evaluate their practical business implications and address challenging U.S. federal and international tax issues.

David has practiced in public accounting since 1999 and has been with Grant Thornton since 2002. Before assuming leadership of WNTO, he served as National Managing Partner of International Tax Services and as International Tax Technical Leader within WNTO.

Throughout his career, David has advised multinational organizations on U.S. federal income taxation, inbound and outbound investment strategies, foreign tax credits, tax controversy and compliance matters, cross-border planning and financial reporting considerations under ASC 740. He combines technical depth with a practical understanding of the business and operational issues confronting tax executives.

David is a frequent speaker at Tax Executives Institute national conferences and other tax leadership forums. His thought leadership focuses on tax legislation and policy, emerging technical developments and their implications for businesses operating in a global environment. He is also a leader in defining and developing the Tax Professional of the Future, with an emphasis on the judgment, technical capabilities and client-facing skills tax professionals will need as technology and client expectations continue to evolve.