"Ivan Tauil is well regarded for his expertise advising on the taxation of major infrastructure projects in the oil and gas sector. He is also noted for his considerable knowledge of international tax law."
Chambers Latin America


Ivan Tauil is the founding partner and Head of the tax law practice of Tauil & Chequer Advogados in association with Mayer Brown and serves on Mayer Brown's Partnership Board. He has extensive experience in local and international taxation. He is also the author of several articles and is often a lecturer at a number of legal and corporate events in Brazil and abroad. Ivan holds an LLM in constitutional law and theory of the state from PUC-RJ. He is the Chairman of the Oil & Gas Committee of the Brazilian Bar Association, Rio de Janeiro Chapter, Director of the Brazilian Tax Law Academy, and a member of the Brazilian Finance Law Association, the International Fiscal Association and the International Bar Association. In addition, Ivan is also a member of the Editorial Board of Revista Tributária e de Finanças Públicas – Ed. Revista dos Tribunais.

In 2016, both Chambers Global and Chambers Latin America recognized him as one of the “Leaders in their Field” for his legal work in the tax sector.

Spoken Languages

  • English
  • Portuguese


  • Represented a foreign group in the tax restructuring of this group that had just been acquired under a transaction worth more than $3 billion.
  • Represented a Brazilian client in connection with drafting the statement of defense for a tax fine involving more than $1.1 billion.
  • Represented a German industrial group with revenues in excess of $4 billion in the tax structuring of its business in Brazil.
  • Represented two international television companies in connection with structuring their $150 million joint venture in Brazil.
  • Oversaw all of the civil and tax cases of a leading chemical company, with revenues in excess of R$200 million, as well as the cases of a company from the food market whose revenues are worth approximately R$100 million.
  • Represented a UK-based real estate fund in connection with structuring, planning, and implementing the multi-million dollar acquisition of a high-end residential real estate project in northwest Brazil.
  • Represented a Brazilian real estate developer in connection with raising funds in the US and EU capital markets for projects in Brazil.
  • Represented a multi-billion dollar Brazilian pension fund in tax and real estate issues; currently representing this fund before Brazilian civil courts.
  • Represented the largest Brazilian real estate developer in its international transactions involving second home sales for non-Brazilian buyers.
  • Represented two global technology companies in their business and tax matters in Brazil.
  • Represented a Brazilian energy company in its $250 million acquisition of a thermal generation plant located in Rio de Janeiro.
  • Represented a Chinese company in relation to tax structuring and planning for a $1 billion EPC project in Brazil.
  • Represented Ecopetrol Brasil in the acquisition of a 30% working interest in three offshore exploration blocks from Vanco Brasil, a subsidiary of the PanAtlantic Energy Group. Vanco Brasil will retain a 40% working interest and the operatorship.
  • Represented a Fortune 500 US company in obtaining a preliminary injunction in Brazil in order to release a multi-million dollar drilling platform and related assets retained in Brazilian ports.
  • Represented a Brazilian engineering company with collections and associated litigation related to its commissioning services provided during the construction of the $1.1 billion “P50” oil production platform in Brazil.
  • Represented a national oil company in the acquisition of a $700 million refinery located in Texas.
  • Represented an oil service company before the Brazilian tax courts, and resolved a $120 million dispute.
  • Represented American companies before Brazilian employment courts in sophisticated litigations involving multi-jurisdictional legal issues.
  • Represented a member of a consortium for exploration and production of oil in Brazil, with respect to tax planning and representation in court aimed at obtaining a tax exemption for international remittances for the payment of services provided in the context of the exploration operations.
  • Represented an oil and gas company in Angola in a project involving the reform of the Angolan oil regulatory framework.


Universidade de Coimbra, Specialization degree in European Commonwealth Law

Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Master’s degree in Constitutional Law

Universidade Federal Fluminense (UFF), Bachelor of Law (JD equivalent)

Universidade Federal do Rio de Janeiro (UFRJ), Bachelor’s degree in Social Science



  • Brazil


  • Chairman, Oil & Gas Committee of the Brazilian Bar Association, Rio de Janeiro Chapter
  • Director, Brazilian Tax Law Academy
  • Member, Urban Land Institute (ULI)
  • Member, Association for Real Estate Project Development in Brazil (ADIT)
  • Former Chairman, Science Board of the Brazilian Academy of Tax Law
  • Member, Editorial Board of Revista Tributária e de Finanças Públicas, edited by Revista dos Tribunals
  • Member, Brazilian Institute of Constitutional Law (Instituto Brasileiro de Direito Constitucional)
  • Member, American Chamber of Commerce (AmCham)
  • Member, International Bar Association
  • Member, International Fiscal Association
  • Member, Brazilian Finance Law Association
  • "name partner Ivan Tauil oversees the practice in Rio de Janeiro and is known for his tax expertise in the energy field." Latin Lawyer 250 2018 - Energy / Tax
  • "Name partner Ivan Tauil is a highly regarded tax lawyer." Latin Lawyer 250 2018 - Tax
  • Ivan Tauil is well regarded for his expertise advising on the taxation of major infrastructure projects in the oil and gas sector. He is also noted for his considerable knowledge of international tax law. Chambers Latin America 2017
  • "is recognised among market commentators for his solid background advising companies from the oil and gas industry on fiscal matters” Chambers Latin America 2017 - Tax
  • "excellent expertise" Latin Lawyer 250 2016 - Energy
  • "a great choice for oil and gas companies. They are always very diligent, answer my requests quickly and are available to attend meetings to improve the strategy that should be adopted.”Latin Lawyer 250 2016 - Energy
  • "Ivan Tauil, who is a highly regarded tax lawyer and leads a large team in Rio de Janeiro” Latin Lawyer 250 2016 - Tax
  • "accessible, very knowledgeable of tax matters and good at pointing out areas of concern.” Chambers Latin America 2016 - Tax
  • "strong knowledge, excellent reasoning and negotiation skills, and the ability to find solutions to sensitive problems." - Chambers Latin America, 2015
  • "... well regarded by market sources for his expert tax advice.” Chambers Latin America 2014
  • "An excellent tax lawyer with acute business and transactional insight” The Legal 500 2013
  • "He is incredible when structuring a deal.” Chambers Latin America 2009