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Fernando Tonanni

Fernando Tonanni A man with medium brown hair. He is wearing a light gray shirt, a dark gray suit and a gray tie with a checkered pattern. He is sitting on a chair, looking straight ahead.

Fernando is a tax specialist with strong knowledge of corporate law and extensive experience in advising international and Brazilian based clients in the tax aspects involved in their businesses. His focus includes tax consultancy, corporate restructuring, mergers and acquisitions, financial transactions, transfer pricing and administrative litigation. He is a frequent lecturer in events in Brazil and abroad, besides being visiting professor of international tax law at Brazilian institutions. Fernando has previous experience in a wide scope of industries such as automotive, agricultural, banking, energy, investment funds, oil and gas, pharmaceutical, telecommunications, retail, services, and transports.

Recent acknowledgments

  • Chambers & Partners Brazil: Tax: Non-Contentious (2021-2023)
  • Chambers Latin America: Tax (2016-2021)
  • Chambers Global: Tax (2020-2024)
  • The Legal 500: Tax and Wealth and succession planning as "Leading Individuals" (2021-2023)
  • Leaders League: Tax: Advisory (2020-2021); Tax: Non-Contentious (2022), Tax : Litigation, Tax: Advisory and Wealth management (2022-2023)
  • Latin Layer 250: Tax (2019-2023)
  • Latin Lawyer National: Tax (2020)
  • Análise Advocacia 500: Tax, Machines and Equipment (2017); Tax (2020); Tax, Machines and Equipment (2021)
  • Who's Who Legal: Corporate Tax and Private Client (2018-2021); Corporate Tax, Private Client, Corporate Governance (2021); Corporate Tax (2022)
  • Latin Finance: Tax (2018)
  • International Tax Review: Tax Director's Handbook (2015); Recognized in the "Tax Expert Guide" (2022); World Tax 2024: Brazil


  • Leiden University, Netherlands (Master’s degree in International Tax Law – LL.M., 2004)
  • Law School of the Pontifícia Universidade Católica de São Paulo (PUC-SP), (Specialist Lato Sensu in Tax Law, 2001)
  • Pontifícia Universidade Católica de São Paulo (PUC-SP), Bachelor of Laws, 1999


  • Brazilian Bar Association (OAB)
  • Brazilian Association of Financial Law (ABDF)
  • International Fiscal Association (IFA)
  • International Bar Association (IBA)
  • American Bar Association (ABA)
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