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    • OUR FIRM
    • BLOG
    • SERVICES
      • STATE TAX LITIGATION
      • STATE TAX ADVICE
      • STATE TAX PLANNING
      • STATE TAX POLICY
    • Our Team
  • OUR FIRM
  • BLOG
  • SERVICES
    • STATE TAX LITIGATION
    • STATE TAX ADVICE
    • STATE TAX PLANNING
    • STATE TAX POLICY
  • Our Team

Marc A. Simonetti

Partner

marc.simonetti@statetax.law

(914) 452-0013

565 5th Avenue

15th Floor

New York, NY 10017

Practice

Marc Simonetti advises and represents business clients on matters across the United States in all areas of state and local taxation, including income, franchise, sales & use tax, and gross receipts tax. He represents clients in tax controversy matters, advises clients on uncertain tax positions, counsels clients on tax planning engagements, and works with clients on tax policy matters.  


Marc zealously represents his clients in controversy matters from audit through litigation—defending their tax positions and working to achieve practical solutions to controversy matters. He represents clients in matters ranging from audit defense to appellate litigation. Marc leads the team through every aspect of litigation: discovery, depositions, motion practice, trial and appeal. Marc is a skilled appellate advocate who has argued before state appellate courts around the country. He strives to make complex tax and Constitutional arguments clear for the appellate justices. Recognizing the inherent risks in litigation, Marc is skilled in attaining the best resolution for his client. 


With a wide array of business clients, including Fortune 100, mid-size, and start up companies, Marc advises on state and local tax issues that affect their business to maximize opportunities and minimize tax liabilities. He understands the national state tax landscape and advises his clients on the most tax efficient way to conduct business operations and avoid costly missteps. In the changing business environment where many clients face new and difficult tax issues regarding the application of old tax laws to new technology, Marc advises his clients on the tax consequences of participating in the digital economy.


Marc advises his clients on strategic business transactions, including acquisitions, dispositions, and mergers as well as business restructuring transactions. He skillfully advises his clients on how to navigate the state and local tax traps for the unwary in business transactions while working to achieve a tax efficient business structure.


Marc counsels his clients on tax policy matters to achieve their business goals. He works with clients to develop the tax technical points to advance their tax policy initiatives from legislative to regulatory matters.

Education

J.D., St. John's University School of Law, 2000 


B.A., Ithaca College, 1996 

Bar Admissions

New York

 

New Jersey 


Illinois 

Court Admissions

U.S. Supreme Court

Professional Associations

Chambers USA: 

Guide to Leading Business Lawyers in Tax (2012–2023)


The Best Lawyers in America - Tax Law (2023-2025)


National Multistate Tax Symposium, 

Board Member


New York University State and Local Tax Forum, 

Board Member

Hear From Our Clients

"Marc is a very good technician. He is known in the industry as a great state tax attorney."  


-  Chambers 2025 USA Guide, NY Tax: State & Local

"He has demonstrated that he is an expert in finding resolutions to complex state and local tax matters."


 -  Chambers 2025 USA Guide, NY Tax: State & Local

"Marc is an excellent advocate for his clients. He not only has a great grasp of tax law but also a deep understanding of the accounting implications of tax matters. It is rare to find a tax attorney that is as knowledgeable about tax calculations and accounting (ASC-740) implications as he is about tax law. This ability to consider the full implications of tax planning and/or tax controversy makes him one of the attorneys we go to on a regular basis." 


- The Best Lawyers in America® 2025

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