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Thiago Giglio

He/Him/HisSenior Associate

“Senior Associate at the tax department and is active in judicial and administrative disputes.”

Thiago has an extensive practice in tax litigation, experienced in Judicial and Administrative Courts. His work includes responsibility for many substantial cases in state and federal courts, including the Higher Courts in Brazil: Brazilian Taxpayers Council, Superior Tribunal of Justice, and Federal Supreme Court. Represented clients in legal transactions with tax authorities regarding tax matters.
Areas of FocusTaxOil and Gas


Thiago has significant experience in direct tax matters, involving tax accounting, as well as in state and municipal taxes, M&A and customs duties.

Represents major companies in tax lawsuits, administrative procedures, and consultations at the government tax departments in Brazil.

Among his clients are Brazilian and international companies in oil and gas, aviation, shipping, foods and beverages, energy, and infrastructure sectors.

Represents clients in legal transactions with tax authorities regarding tax matters.
  • English
  • Portuguese
  • State of Rio de Janeiro University – Master of Laws – Public Finance, Taxation and Development, 2023
    Cândido Mendes University (Rio de Janeiro) – Master of Business Administration – MBA – Federal Taxes Management, 2020
    Getulio Vargas School of Law (Rio de Janeiro) – LL.M. – Tax Law, 2013
    Federal University of Rio de Janeiro – B.A., 2010


Thiago started his career in 2007 and have worked at large tax law firms. In 2013, Thiago joined Campos Mello Advogados in cooperation with DLA Piper in order to strength its tax litigation department.

Memberships and Affiliations

Brazilian Bar Association (OAB)

  • Rio de Janeiro