Professional Experience

Rafael Gregorin joined the Firm in 2002 and became partner in 2018. He integrates the tax practice group, with focus on litigation. Mr. Gregorin has a wide breadth of experience in tax and customs litigation, representing clients in disputes involving federal, state and municipal taxes.

Work abroad

He has worked in Ablfs & McKfnzif Chicago in the tax practice group.

Awards and Recognitions

Rafael Gregorin has been recognized as one of the most admired tax litigation lawyers by Análise Advocacia and Lacca Approved.

Academic Background

He graduated from Pontificia Universidade Católica (PUC-SP) with a degree in Law. Mr. Gregorin also holds a master’s degree in Tax Law from King’s College London and a specialization in Tax Law from Insper-SP. Additionally, he holds an specialization in Customs Law.

Activities outside the office

Mr. Gregorin is a member of the Customs Commission of the Brazilian Bar Association.


Author/co-author of several books/articles, such as:

– Tax disputes – administrative and judicial levels, Blucher, 2019;

– Taxpayers have five years to offset tax credits, Valor Econômico, 2019;

– Tax Litigation Opportunities and Pitfalls in Latin America; Thomson Reuters, 2009.

Representative matters and clients

– Mr. Gregorin represents foreign multinationals with activities in Brazil and major domestic companies in relevant tax assessments challenging tax planning structures;

– Defended a key client on a successful leading case for the software industry;

– Represented a major client in one of the most important operations carried out by the Brazilian Revenue Department regarding import transactions.

Trench Rossi Watanabe
São Paulo
Rua Arq. Olavo Redig de Campos, 105
31º andar - Edifício EZ Towers
Torre A | O4711-904
São Paulo - SP - Brasil

Rio de Janeiro
Rua Lauro Muller, 116 - Conj. 2802
Ed. Rio Sul Center | 22290-906
Rio de Janeiro - RJ - Brasil

Saf/s Quadra 02 - Lote 04 - Sala 203
Ed. Comercial Via Esplanada | 70070-600
Brasília - Distrito Federal - Brasil

Porto alegre
Av. Soledade, 550
Cj. 403 e 404 | 90470-340
Porto Alegre - RS - Brasil

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