
Tax Litigation: The Elite
Global Guide 2026 : Brazil
Rankings

Ranked Individuals
Ranked Individuals
About
Provided by Dias de Souza
The firm advises on tax matters, including M&A, reorganizations and cross-border transactions, as well as tax planning for corporate and individual clients. It has strong experience in judicial and administrative tax litigation across all levels, including higher courts. The team also handles public law matters, including state liability and social security, advising Brazilian and multinational companies.
Clients (1)
- Brazilian and multinational clients.
Industries (1)
- Agriculture Automobile Industry, Banking, Computer Hardware, Food and Beverage , Foreign Trade, Home Appliances, Sugar and Ethanol and Telecom
Chambers Review
Provided by Chambers
Strengths
Provided by Chambers
The team showed deep technical knowledge combined with strategy, which gives us a lot of confidence and peace of mind, especially in the most complex matters.
Tax Litigation: The Elite respondentGlobalThe firm has specialised knowledge and a strategic vision of litigation. It works with a client-centric approach.
Tax Litigation: The Elite respondentGlobalIt is a law firm very focused on taxes, with a strong awareness of its market penetration and, therefore, is aware of its commercial strategies.
Tax Litigation: The Elite respondentGlobal
Notable Practitioners
Provided by Chambers
Senior Statespeople 
Senior Statespeople 
Hamilton Dias de Souza
Pre-eminent founding partner Hamilton Dias de Souza continues to be regarded by interviewees as a prominent figure in the tax litigation sphere owing to his long track record of handling a wide variety of disputes. Hamilton is an academic figure, with great clarity and didactics. A master of masters.
Tax Litigation: The Elite respondentGlobalHamilton Dias de Souza deals with the law as if it was art. He does not come up with common arguments, he always tries to delve deep into the matters to understand them.
Tax Litigation: The Elite respondentGlobal
Band 3 
Band 3 
Mário Luiz Oliveira da Costa
Mário Luiz Oliveira da Costa assists clients from an array of sectors with contentious mandates in both the administrative and judicial spheres.
Mário is skilled, precise, realistic and respectful with all clients. His opinions provide the necessary details for the client to make a decision based on good elements.
Tax Litigation: The Elite respondentGlobal
Ranked Individuals at Dias de Souza (2)
Members
Provided by Dias de Souza

Hamilton Dias de Souza
View profile of Hamilton Dias de Souza
Mário Luiz Oliveira da Costa
View profile of Mário Luiz Oliveira da Costa
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