Diogo Ferraz
Diogo Ferraz

Diogo Ferraz


+55 21 3550 1370

Áreas de atuação

  • Tax


Diogo has extensive experience in all areas of tax law. In tax advisory, he has been rendering consults and legal opinions on the interpretation of tax law, advising the tax structuration of clients operations and developing efficient tax planning. In tax litigation, he works actively in judicial and administrative proceedings, both challenging unlawful tax assessments and creating tax saving opportunities to clients.


  • Ph.D (cum laude), Financial and Tax Law, Universitat de Barcelona – Spain, (2015).
  • LL.M, Public Law, Universidade do Estado do Rio de Janeiro (UERJ) (2008).
  • Post-graduate degree in Tax Law, Fundação Getúlio Vargas (FGV) (2005).
  • LL.B, Universidade Cândido Mendes (2003).


Additional activities

  • Member of the Council of ABDF. Coordinator for the Tax Case Law Project (PJT)
  • Coordinator for the Tax Case Law Project (PJT) - A partnership between GDT-Rio and the ABDF
  • Visiting professor at IBMEC, FGV-Rio and Universidad Complutense de Madrid (Escuela de Práctica Jurídica)


  • Books

    Authored books on corrective taxation on financial markets (“Los Tributos del Mercado Financiero: una perspectiva extrafiscal, Madrid: Marcial Pons, 2016) and on the relation between the supremacy of the public interest and tax law (A Supremacia do Interesse Público e o Direito Tributário, Porto Alegre. Nuria Fabris, 2012). Author of many articles on tax law published in books and journals.

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