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San Francisco, California

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Service Experience
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  • Advisory
  • State & Local Tax

Joshua Grossman




Executive summary

Joshua “Josh” is a State and Local Tax (“SALT”) Principal in the San Francisco office of Grant Thornton LLP.  Mr. Grossman specializes as a subject matter expert in California Corporation Income or Franchise Tax matters.  

Mr. Grossman’s practice focuses heavily on California consulting and controversy advisory services such as audit defense, assessment protests, FTB settlement negotiations, and appeals before California’s administrative Office of Tax Appeals and its predecessor, the State Board of Equalization.  Additionally, Mr. Grossman’s SALT practice frequently contemplates multistate nexus studies, anonymous VDA negotiations, California apportionment/market-based sourcing studies, California refund reviews, and refund claim filing and defense.  

Josh has focused for many years on meeting the needs of clients operating in the banking, insurance, financial services, mutual fund advisory, and investment management sectors, and he has assisted numerous clients with navigating the complex special industry apportionment and sourcing rules that many states apply to taxpayers operating in these sectors.   

Before joining Grant Thornton, Mr. Grossman worked in both accounting firms and law firms in San Francisco and New York City where he advised clients in a wide variety of SALT issues.

Mr. Grossman received his undergraduate degree from UC San Diego where he studied mathematics and economics, his J.D. from the University of Arizona, and his LL.M from New York University School of Law.  When he is not working, Josh enjoys playing tennis, cooking with his wife, wine tasting, sci-fi literature, and working on classic cars.



Professional qualifications and memberships

  • California Bar


Presentations and publications

  • Economic Nexus Threatens Water’s-Edge Elections: A Legislative Proposal for Relief, California Tax Lawyer Vol. 26, Number 2 (June, 2017).



  • LL.M, New York University School of Law
  • J.D., University of Arizona James E. Rogers School of Law
  • B.A., Joint Degrees in Mathematics and Economics, UC San Diego

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