Our law firm stands out for its experience and commitment to client results in providing legal services in the areas of tax, advisory, and litigation. With a highly qualified and specialized team and extensive in-house experience, we offer efficient and customized solutions to meet the specific needs of our clients, both in Brazil and internationally.

Tax Consulting:
- Tax Planning: Development of strategies to optimize the tax burden, focusing on reducing risks and taking advantage of tax benefits.
- Structuring Operations: Consulting for structuring corporate transactions, mergers, acquisitions and business reorganizations.
- Compliance and Inspections: Conducting and monitoring tax audits and diagnoses, identifying risks and opportunities, as well as providing assistance with changes in legislation.
- International Consulting: Advice on international transactions, including tax planning in the structuring of multinational operations when they begin operations in the country.
Tax Litigation:
- Defense of Prosecutions: Representation and defense of our clients in administrative and judicial proceedings related to tax assessments and disputes with tax authorities.
- Legal Actions: Filing of legal actions, including writs of mandamus, annulment actions, and declaratory actions, focusing on defending tax interests and opportunities to recover amounts unduly collected.
- Dispute Management: Monitoring tax disputes in various spheres (municipal, state and federal), with a focus on minimizing financial and reputational impacts.
Advice on Administrative and Judicial Litigation:
- Judicial and Administrative Representation: Work in administrative and judicial processes at all levels, focusing on defending rights and seeking efficient and rapid solutions.
- Preventive and Corrective Actions: Development of strategies to prevent disputes, always seeking the most effective and least costly resolution for our clients.
- Performance in Resources: Filing of administrative and judicial appeals, including special and extraordinary appeals, to ensure the best defense in the tax sphere.

Experience

August 9, 2022

Mazzucco&Mello advises pharmaceutical company on tax transaction and obtains 67% reduction in transacted debts

Mazzucco&Mello Advogados advised on the tax settlement of social security debts of an important company in the pharmaceutical sector. The debt, whose...

Team

Updates

July 25, 2025

Tax integration and business registration: impacts of the new CNPJ tax classification requirement

A partir de 27 de julho, empresários deverão escolher o regime tributário já na inscrição do CNPJ, conforme...

April 11, 2025

The impacts of Tax Reform on the real estate sector

Our partner, André de Ataide, gave an interview to the Mídia Oficial portal to comment on the main impacts of the Reform...

News

April 11, 2025

The impacts of Tax Reform on the real estate sector

Our partner, André de Ataide, gave an interview to the Mídia Oficial portal to comment on the main impacts of the Reform...

July 8, 2024

In an interview with Estadão, our partner in the tax area comments on changes in taxes and what to expect in the coming years

Last Saturday, 06/07, partner André Martins gave an interview to the newspaper ESTADÃO, addressing the expected impacts...

December 21, 2023

STJ excludes ICMS-ST from the PIS and COFINS calculation bases

In November, the ADIs 7,066, 7,070 and 7,078 were judged by the Plenary of the Federal Supreme Court (“STF”),...

December 18, 2023

São Paulo approves Tax Transaction for debts registered in active debt

Law No. 17,843/2023 was published, creating the “Acordo Paulista” program in the State of São Paulo, capable of...

In-House Experience: Our team has practical experience gained in the corporate sector, having worked directly in the legal departments of large companies, which provides us with a broad and strategic vision to deal with day-to-day tax issues.
Commitment to Results: We are focused on achieving concrete and effective results for our clients, with a personalized approach that prioritizes fast and efficient problem-solving.
Technical and Strategic Approach: We combine in-depth technical expertise with strategic vision, offering legal solutions that consider not only legal aspects but also our clients' business needs and challenges.
Tax Risk Management: Our work is based on identifying and mitigating tax risks, ensuring that our clients can make informed and safe decisions.
Continuous Update on Tax Reform: We keep our clients informed about changes in tax legislation and the impacts of tax reform, ensuring adaptation to the new tax rules.

Our firm is a strategic partner for companies seeking not only to resolve tax issues, but also efficient tax management, with a focus on the security and success of their businesses.

August 9, 2022

Mazzucco&Mello advises pharmaceutical company on tax transaction and obtains 67% reduction in transacted debts

Mazzucco&Mello Advogados advised on the tax settlement of social security debts of an important company in the pharmaceutical sector. The debt, whose...

Practice Areas

Tax >

Overview

Tax

Experience

Experience

Mazzucco&Mello advises pharmaceutical company on tax transaction and obtains 67% reduction in transacted debts

Team

Team

Nicholas Brognoni

André Martins

John Paul Toledo of Rezende

Isabela Chagas

Updates

Updates

Tax integration and business registration: impacts of the new CNPJ tax classification requirement

The impacts of Tax Reform on the real estate sector

News

News

The impacts of Tax Reform on the real estate sector

In an interview with Estadão, our partner in the tax area comments on changes in taxes and what to expect in the coming years

STJ excludes ICMS-ST from the PIS and COFINS calculation bases

São Paulo approves Tax Transaction for debts registered in active debt

Mazzucco&Mello advises pharmaceutical company on tax transaction and obtains 67% reduction in transacted debts

Nicholas Brognoni

André Martins

John Paul Toledo of Rezende

Isabela Chagas

Tax integration and business registration: impacts of the new CNPJ tax classification requirement

Ministry of Labor postpones the validity of the rule requiring collective bargaining for work on holidays in commerce

The role of the lawyer and financial consultant in corporate restructuring

Who makes the SPB work? Central Bank, Traditional Banks, and Fintechs

CVM creates new regime to facilitate access of smaller companies to the capital markets

Employer's liability: theft of belongings from a locker and the duty of safety in the workplace