Area of Focus
State & local tax Income & franchise tax Tax controversy

Robert Zonenshein

Senior Director
Area of Focus
State & local tax Income & franchise tax Tax controversy

About Robert

Robert Zonenshein provides state and local income tax, franchise tax, and sales and use tax consulting and controversy services to a broad range of clients, including multinational C corporations, pass-through entities, and high-net-worth individuals.


Robert has served as a subject matter expert on New York and New Jersey tax matters, multistate controversy matters, and the unique considerations affecting financial services firms and multistate corporate and pass-through entities, including multistate withholding and reporting requirements.

He has negotiated numerous multistate voluntary disclosure agreements on behalf of clients. He has co-authored published ruling requests and advisory opinions on a broad range of topics, including bank taxation, taxation of incentive fees, sourcing of digital assets, sales of partnership interests, and the application of sales tax to software. Robert has also represented clients at all stages of audits, including informal forums and administrative appeals.

Robert has also advised on state tax restructuring and merger and acquisition transactions, including sell-side and buy-side due diligence reviews. He is a frequent author of tax articles on a broad range of state tax matters. He also frequently provides training and updates to internal and external clients.

Robert’s family is from the Carpathian Mountains region of Ukraine and immigrated to the United States when he was young, but he still has a working understanding of the language, as well as Yiddish (old German) and several other languages. He and his wife live in the New York City metro area and have two sets of boy-girl twins.

Professional affiliations and designations

  • New York State Bar Association, Tax Section Committee
  • New Jersey State Bar Association
  • U.S. Supreme Court Bar, U.S. Tax Court Bar


  • Master of Laws, taxation, New York University School of Law
  • Juris Doctor (cum laude), Benjamin N. Cardozo School of Law
  • Bachelors of Science, accounting and economics (magna cum laude), New York University