Tax
Latin America Guide 2025 : Argentina
Band 2
About
Provided by O'Farrell
Miguel AM Tesón, leading the area, is a prestigious tax lawyer, former president of the Argentine Fiscal Association. He works alongside Guillermo Lalanne, Valeria Estathio and Maria Celina Valls, with the support of Eduardo Baistrocchi and Carlos Repetto, as of counsels. The department has a strong expertise in complex tax litigation matters. It completes its practice covering a wide range of local and international tax issues, including international tax planning and transfer pricing.
Our Tax Department has gained a very important reputation among its clients and peer law firms in complex tax litigation, local taxation and transfer pricing.
We also have contacts with major law offices in several countries, which enable us to analyze every transaction from a global perspective. In particular, we have a major alliance with the Spanish firm Estudio Roca Junyent with whom we work on a habitual basis.
Our Tax Law Department has created a work unit specialized in complex tax lawsuits, with particular experience in disputes subsequently appealed to the National Supreme Court of Justice. Said work unit is unique in Argentina in the full-service law office sector.
O´Farrell´s Tax Department has gained a very important reputation among peer law firms because of having taking the initiative in innovative tax controversies and obtaining successful results from the Federal Supreme Court.
Chambers Review
O'Farrell's highly regarded tax department offers strong expertise in controversy cases concerning a range of taxes, including stamp, income and social security. The team routinely represents clients in administrative and judicial proceedings before municipal, provincial and federal authorities, including the Federal Supreme Court. The department provides additional counsel on tax planning related to tax benefit schemes and corporate transactions.
Work Highlights
- O'Farrell represented SoEnergy Argentina in a stamp duty claim brought by the Province of Salta.
Strengths
Provided by Chambers
"The team at O'Farrell has great ability to handle complex issues. Their professionals have solid experience and understand what their clients want and the goals being pursued."
"The team at O'Farrell has great ability to handle complex issues. Their professionals have solid experience and understand what their clients want and the goals being pursued."
Notable Practitioners
Distinguished partner Guillermo Lalanne is noted for his expertise in contentious tax matters. He has extensive experience handling tax disputes of a constitutional nature.
"Guillermo Lalanne is an excellent professional with a technical focus who does not lose sight of the characteristics and purpose of business."
Head of department Miguel Alejandro Máximo Tesón garners strong praise from interviewees for his technical and commercial skills in the tax field in Argentina. He is particularly commended for his tax litigation work.
"Miguel is an excellent professional, and I trust him with all the tax issues of our company."
Well-regarded partner Valeria Estathio is active in tax matters in Argentina, particularly tax structuring and income tax mandates.
"Valeria Estathio provides solid advice to clients."
Partner María Celina Valls continues to receive noteworthy market commentary for her tax practice in Argentina. She is well versed in tax litigation and transfer pricing issues.
"María Celina Valls provides excellent advice, offers cordial treatment and simplifies complex issues."
Ranked Lawyers at
O'Farrell
Argentina
Members
Provided by O'Farrell