Tax Litigation: The Elite
Brazil
1 year ranked
LAWYER PROFILE
Mário Luiz Oliveira da Costa
Brazil 2026
Ranked in 1 practice area
About
Provided by Dias de Souza
Brazil: Contentious
Practice Areas
Public law, especially tax and administrative law.
Career
Partner of Dias de Souza Advogados Associados.
Professional Memberships
Honorary associate of the São Paulo Lawyers Association – AASP, of which he was a board member (2014 to 2022), director (2015 to 2022) and president (2022). Board member and director (2025/2027 term) of the MDA – Movement for the Defense of Advocacy. Member of the Lawyers Institute of São Paulo (IASP) and the Brazilian Institute of Tax Law (IBDT).
Publications
Author of the book "Sugarcane sector - from strict intervention to free Market" (Setor Sucroalcooleiro - da rígida intervenção ao livre mercado) and several articles published in specialised books and magazines.
Personal
LL.B. degree from the Catholic University of São Paulo - PUC/SP (1991). Militant lawyer in Tax Law. Specialization degrees in Tax Law from the University Extension Center and Business Law from the Catholic University of São Paulo - PUC/SP. LL.M. degree in Economic Law from the University of São Paulo - USP.
Awards
Awarded the “Lexology Client Choice Award – Brazil, Corporate Tax” in 2024 and 2025. Successively nominated among the best tax litigation lawyers in the country by Chambers Latin America
Chambers Global, The Legal 500 Latin America, Leaders League, Análise Advocacia Magazine and Best Lawyers Brazil.
Chambers Review
Provided by Chambers
Chambers Brazil: Contentious
Tax Litigation: The Elite - Brazil
Band 3
Individual Editorial
Mário Luiz Oliveira da Costa assists clients from an array of sectors with contentious mandates in both the administrative and judicial spheres.
Strengths
Provided by Chambers
Mário Luiz Oliveira da Costa has a relevant performance and is well established. He is on the rise in the tax field.
Tax Litigation: The EliteChambers Brazil: Contentious
Ranked Individuals at Dias de Souza (2)
Brazil
Hamilton Dias de Souza
Tax Litigation: The Elite
View profile Mário Luiz Oliveira da Costa
Tax Litigation: The Elite
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