Benjamin Diaz

Managing Director
25+ years of state and local tax experience
Focuses on income/franchise and sales/use taxes for multi-state entities ​​​​​​​
Expertise in public sector tax issues
Miami
@alvarezmarsal
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Ben Diaz is a Managing Director with Alvarez & Marsal Tax in Miami. He advises corporate clients on state and local taxes, with an emphasis on income/franchise and sales/use taxes for multi-state entities.

Mr. Diaz conducts reviews and structural planning related to acquisitions and dispositions, audit defense, tax compliance, and the application of technology for state and local tax purposes. He also advises public sector clients on tax reform issues, including designing tax systems and improving operational effectiveness.

With more than 25 years of state and local tax experience, Mr. Diaz has advised clients in a variety of industries, including retail, transportation, financial services, the public sector and telecommunications.

Prior to joining A&M, Mr. Diaz spent eight years with the tax and business advisory practice of Arthur Andersen and three years with the tax practice of Deloitte. He has also been an adjunct professor in the master of accounting program at Florida International University.

Mr. Diaz earned a bachelor's degree in accounting and management information systems and a master's degree in taxation from Florida International University. He is a Certified Public Accountant (CPA), and a member of the American Institute of Certified Public Accountant (AICPA) and the Florida Institute of Certified Public Accountants.

Insights By This Professional

On March 25, 2022, the Texas Supreme Court unanimously ruled in favor of Sirius XM Radio, Inc. (“Sirius”) and against the Texas Comptroller of Public Accounts’ (the “Comptroller”) assessment in Sirius v. Hegar, No. 20-0462 (Texas 2021).
Businesses that have revamped their remote work policies should assess potentially new tax obligations under the various state nexus rules.
Yesterday, the IRS and Treasury announced in a news release that they will issue guidance that provides a 32-day postponement, to May 17th, for certain individuals to either file or extend their 2020 income tax return and pay their 2020 income tax liability.
Online Merchants Guild, a trade association of online sellers, filed a lawsuit last week against the Pennsylvania Department of Revenue (DOR) in the U.S. District Court for the Middle District of Pennsylvania.
Latest insights The latest insights from Benjamin Diaz's team
Thought Leadership
Discover Payday Super draft legislation and how employers will need to reassess how they manage superannuation compliance beginning 1 July 2026.
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