Mattos Filho

Mattos Filho‘s Brasília tax practice operates on two key fronts: high-stakes litigation and strategic public policy engagement. On the contentious side, the team remains active before the Superior Court of Justice, the Supreme Court, and CARF. In the policy arena, the practice is a key participant in legislative discussions with Congress and executive bodies. This dual capability makes the firm a sought-after adviser for clients operating in a variety of sectors. The team’s expertise is embodied by its key practitioner Ariane Costa Guimaraes, a tax litigation specialist noted for representing corporate interests before the National Congress and key government ministries. Further adding to the team is associate Pedro Henrique de Castro Motta, who brings deep knowledge of judicial tax litigation.