William L. Inchoco
With more than 15 years of experience, William is an accomplished international tax professional with a proven track record of results blending business, legal, public policy, and taxation expertise in advising multi-national business organizations.
William provides invaluable counsel for clients operating in an environment of intense scrutiny and challenges brought about by the changing tax laws and ever-increasing regulatory environment. He has extensive expertise in the area of international taxation with specific expertise in corporate reorganizations, global restructuring, as well as U.S. inbound/outbound tax issues. He advises companies on emerging issues regarding 2017 Tax Reform legislation (i.e., Sec. 965, GILTI, FDII, and BEAT) and provide insights on its impact on existing business models. He also advises companies on tax legislation and developments around the world including the impact of EU Directives, OECD guidelines, MLI, and unilateral actions (i.e., DST).
William joined Frost Law in 2021 as Of Counsel with combined Big Four and corporate experience. Previously, he served as the International Tax Senior Advisor with the Global Tax Operations group at IBM Corporation in New York. His previous experience also included positions at Deloitte Tax LLP, Ernst & Young LLP.
Areas of Practice
- International Taxation
- Transfer Pricing
- Customs and Trade
- Corporate reorganizations and Global Restructuring
- Foreign Jurisdiction
- Harvard Law School, International Tax Program Fellow
- Harvard Kennedy School, Master’s in Public Administration
- Ateneo de Manila University, A.B. Political Science
Professional Organizations and Memberships
International Fiscal Association Westchester, NY/CT Region, Executive Vice-President
- Lecturer in international tax at Fairfield University, Dolan School of Business
- Perils of the Repeal of Anti-Downward Attribution Rule
- High Tax Exception Exonerates the GILTI
- International Tax Savings Strategies Under the CARES Act
- Treatment of Partnerships in GILTI Regime
- GILTI No More: High Tax Exception Now Applies
- IRS Releases Draft Sec. 965 Form and Schedules
- New Guidance on Transition Tax Filing and Payment
- Tax on Sale of Partnership Interest by Foreign Partners
- International Tax Considerations for 2017 Tax Filing
- Tax Reform Bill: What’s in it for Multinational Enterprises
- GOP Tax Reform Framework and its Impact on International Tax
- Is Tax Reform Imminent?