With a strong presence in the Rio Grande do Sul market, Souto Correa Advogados has an impressive tax offering, providing both litigation and consultancy services at the federal, state, and municipal levels. The practice is particularly adept in matters concerning social security contributions, restructurings, and tax benefits, but also assists with tax due diligence processes on M&A deals. The group boasts a strong client base made up of businesses from a range of sectors, including energy, oil and gas, and technology, and its capability to handle high-value and complex tax matters continues to attract new clients. Co-leading the department are Anderson Trautman Cardoso, Henry Lummertz, and Valter Tremarin Junior, all of whom bring extensive experience to the team. Cardoso specialises in tax litigation and customs, regularly acting for clients in negotiations with public agencies and before the superior courts. Lummertz is recognised for his aptitude in litigating tax matters involving start-ups before state and federal courts. Tremarin Júnior is experienced in assisting energy, technology, and petrochemical companies in both administrative and judicial litigation, as well as tax and customs consultancy matters.

TozziniFreire Advogados is a powerhouse in the Porto Alegre market, recognised for its expertise in tax law. The tax practice specialises in judicial and administrative proceedings, and offers consultancy and tax planning services. Routinely instructed by impressive clients from a variety of industry sectors, including energy, mining, transport, and infrastructure, the group is capable of handling high-value matters regarding PIS/COFINS disputes, tax assessments, federal tax enforcements, and tax exemptions, to name a few. Corporate tax specialist Gustavo Nygaard leads the practice and is an authority in both tax litigation and non-contentious work. The department also benefits from the expertise of Rafael Mallmann, who is noted for his experience in litigation concerning corporate tax. Associates Bernardo Mascarenhas Mardini and Claudia Rocha De Morais are among other notable names in the team; Mardini focuses on administrative proceedings and judicial tax proceedings, while Morais has in-depth knowledge of tax collection, tariffs, and contribution disputes, alongside non-contentious matters.

Enjoying a well-established reputation in the Porto Alegre market, CMT – Carvalho, Machado e Timm Advogados fields a tax practice that is a go-to choice for clients operating in a range of industries, including mining, agriculture, and retail. The department offers both consultancy and litigation services, showcasing notable strength in tax credit disputes, debit and credit offsets, and tax planning, . The group is led by Cristiano Rosa De Carvalho, who stands out for his knowledge of domestic and international tax planning, tax incentive negotiations, and tax credit reimbursements. Adept in tax litigation, Lucas Tavares Dos Santos is regularly instructed by agribusiness, technology, and construction companies in judicial and administrative proceedings. Another key member of the team is Reginaldo Dos Santos Bueno, who concentrates on advising clients seeking to optimise their tax burdens.

Rafael Pandolfo Advogados Associados possesses solid credentials in judicial and administrative tax litigation as well as non-contentious tax matters, including, but not limited to, notices of infraction, tax exemptions, and tax reclassifications. The group has a growing client roster comprised of companies operating in an array of sectors, such as retail, banking, and energy. Tax specialists Rafael Pandolfo, Rafael Santos Borin, Airton Bombardeli Riella, and Luciane Andrade co-lead the practice. Founding partner Pandolfo has expertise in acting before the superior courts in tax litigation, and his former role as a judge at CARF - Brazil's tax appeals court - makes him an asset to the team. Borin, also a founding partner, is recognised for his experience in administrative tax proceedings, tax planning, and credit recoveries. Specialising in lawsuits seeking tax asset recoveries, Riella is also adept in tax consulting.

Silveiro Advogados’ tax team – praised for being ‘very competent and diligent… with great technical expertise’ – is experienced in litigation and non-contentious matters, including tax assessments and levy disputes. The breadth of the group has attracted a strong and expanding client roster made up of players from a host of segments, most notably energy, financial services, and oil and gas. Practice head Cassiano Menke has over two decades’ experience in tax litigation, and is noted for his ‘in-depth knowledge of tax law.’ Another key member of the team is Louise Lerina Fialho, who specialises in tax litigation and tax planning. The team was further strengthened by the addition of Livia Stumpf, who joined as a partner from Trench Rossi Watanabe in February 2024.

Standing out in the market for its expertise in international tax, the tax planning and tax controversies practice at Trench Rossi Watanabe is equipped to handle complex matters involving foreign jurisdictions on behalf of multinational clients. The group is frequently instructed by companies from the automotive, IT, and agribusiness sectors, although its client roster continues to expand, most notably in the pharmaceutical and education spaces. The team is jointly led by Claudio Moretti and Thales Stucky, who specialise in tax litigation related to direct and indirect taxes, including proceedings at the judicial and administrative level. Another key member of the practice is associate Thaís Amaral, who often advises technology, automotive, pharmaceutical and agribusiness clients on direct and indirect tax issues.

Offering litigation and consultancy services, the tax team at Andrade Maia Advogados is capable of handling a range of tax matters such as credit disputes, public civil actions, and tax recoveries. The group predominantly represents clients from the retail, heavy industry, and third sectors. Practice head Fabio Brun Goldschmidt has extensive experience litigating before the Supreme Federal Court, the Superior Court of Justice, and CARF. Other central partners in the department include Ane Streck Silveira and Lucas Pinheiro Tavares, who specialise in tax immunity and consultancy matters, respectively.

Diego Galbinski Advocacia’s tax department is well placed to advise on non-contentious matters as well as tax litigation at the administrative and judicial level. The group has expertise representing clients from a variety of sectors - including, but not limited to, agribusiness, healthcare, and construction - in tax reviews, tax exemption matters, and appeals before the CARF. Founding partner Diego Galbinski heads up the practice and is recognised for his ‘deep experience’ in tax law. Other notable names include associates Arthur Rocha Benevides Magalhães and Pedro Acosta De Oliveira, who concentrate on non-contentious matters including auditing and compliance.

Eichenberg, Lobato, Abreu & Advogados Associados has a strong tax offering covering both contentious and non-contentious matters such as rescission lawsuits, tax and social contributions disputes, tax assessments, and compliance. The tax practice is frequently engaged by clients from the agribusiness, technology, and construction sectors, to name a few. Founding partner and practice head Edmundo Cavalcanti Eichenberg stands out for his ‘commitment, availability, and technical knowledge’. Other notable names in the group include Marcelo Czerner, Patrick Leite Kloeckner, and Lisie Neves Schreinert, all of whom are experts in tax law.

With extensive experience in administrative and judicial tax disputes, Ilarraz Advogados is also skilled at advising on the taxation of foreign trade transactions, tax planning, due diligence, and day-to-day consulting matters. The group has an expanding client roster consisting of businesses from a range of sectors, namely financial services, pharmaceuticals, and telecoms. Marcelo Ilarraz leads the team and is sought out for his ‘international tax knowledge’ and his ability to ‘apply tax laws accurately and effectively, providing clients with legal security and peace of mind’.

Demonstrating a strong track record in tax litigation before administrative and judicial entities, Rossi, Maffini, Milman & Grando Advogados is particularly skilled at handling contentious matters pertaining to tax law, but also engages in non-contentious work. Clients from the banking, entertainment, and manufacturing sectors, among others, regularly turn to the group for advice on complex tax planning, accounting issues and transactional matters. Leading the practice is Felipe Esteves Grando, who has extensive experience in tax litigation at the municipal, state, and federal level. Bruno François Guimarães, who focuses on litigation and advisory matters, is another notable name in the tax department.