Dias de Souza

Firm Profile

Rankings

Global

Awarded leading firm in Global 2026

Chambers and Partners

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Overview

Provided by Dias de Souza

Chairman: Dr Hamilton Dias de Souza

Managing Partners: Dr Hamilton Dias de Souza, Dr Mário Luiz Oliveira da Costa, Dr Hugo Funaro, Dr Douglas Guidini Odorizz

Number of partners: 13

Number of lawyers: 3

Languages: English, French, Italian, Portuguese, Spanish

Firm Overview:

Established in 1967, the firm’s practice encompasses consultancy and litigation activities, focusing on law issues, especially tax, administrative and economic law areas. The firm is specialised in all areas of corporate and personal taxation, including estate planning, settlements and national and foreign company groups’ reorganisation.

Dias de Souza provides objective responses, which are necessary for a quick and clear understanding of legal issues, as well as complex answers on matters requiring a more elaborative analysis or legal opinion. The firm’s litigation practice is experienced in both federal and state judiciary courts, especially in the tax and economy sectors, and involves personal follow ups on proceedings in the first and second instances, as well as at the higher courts, submitting briefs and oral arguments. The firm’s performance in public law matters has been outstanding, especially in proceedings related to social security law and cases involving civil liability imputed to government for losses incurred by private parties from economic plans, price policies, foreign trade restrictions, and so on. The firm is also well known for its practice in litigation proceedings at the state and federal administrative courts.

The firm specialises in analysing tax aspects for corporations setting up companies in Brazil, as well as and in interacting with federal, state and local governments to give rise to tax benefits and also adequate legislation in others tax matters. The firm is also active in all international tax areas, including issues regarding (re)structuring and finance planning, extending into the international sphere, for which it relies on professionals with international background and partnerships with renowned firms and institutions in various countries around the globe.

Practice Areas

Tax

Tax Litigation

International Tax

Public

Main Areas of Practice:

Tax:

With a highly specialised team of tax experts, the firm provides assistance in a variety of tax matters, examining aspects of mergers and acquisitions, reorganisations, inbound and outbound operations and other transactions. The firm’s practice also encompasses tax planning and assistance to both corporate and personal income taxation.

Tax Litigation:

The firm’s expertise includes both judicial and administrative litigation, related to all existing federal, state and municipal taxes. The firm has a great reputation among judges and counsellors and it is also very active in the Superior Courts, having successfully conducted many leading cases.

Public Law:

Work handled includes the conduction of judicial proceedings involving civil liability imputed to government for losses incurred by private parties from economic plans, price policies, foreign trade restrictions. The firm also has broad experience in social security law issues.

Clients:

Brazilian and multinational companies of different sizes and areas of activity, many of them market leaders in economic sectors such as agriculture, automobile industry, banking, computer hardware, food and beverage, foreign trade, home appliances, sugar and ethanol and telecom.

Ranked Offices

Provided by Dias de Souza

Address (A-Z)

Brazil - Head office

Sao Paulo

Avenida Brasil, 1575 , São Paulo - SP, Sao Paulo, Brazil, 01431-001, São Paulo - SP

www.dsa.com.br

+55 11 3069 4277

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Dias de Souza