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 and Maria Celina Valls, with the support of Daniel Calzetta, 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

Provided by Chambers

Tax - Argentina

2
Band 2

What the Team is Known For

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 assisted Telefónica Móviles Argentina with filing two claims challenging the constitutional validity of the prohibition on applying the inflation adjustment provision to asset depreciation for the fiscal years 2022 and 2023.

Strengths

Provided by Chambers

Notable Practitioners

Provided by Chambers

Guillermo A Lalanne
2
Guillermo A Lalanne
2
Band 2

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's professional excellence is widely recognised in the market.

Miguel Alejandro Máximo Tesón
2
Miguel Alejandro Máximo Tesón
Head of Tax
2
Band 2

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 Máximo Tesón combines a strong commercial vision with decisive, practical advice that instils confidence in his clients.

María Celina Valls
4
María Celina Valls
4
Band 4

Partner María Celina Valls continues to receive noteworthy market recognition for her tax practice in Argentina. She is well versed in tax litigation and transfer pricing issues.

María Celina Valls is a practical and decisive professional with in-depth knowledge of tax law and its application.

Ranked Lawyers at
O'Farrell

Provided by Chambers
Filter by
Band

Argentina

Tax

Guillermo A Lalanne
2
Guillermo A Lalanne
2
Band 2
Miguel Alejandro Máximo Tesón
2
Miguel Alejandro Máximo Tesón
Head of Tax
2
Band 2
María Celina Valls
4
María Celina Valls
4
Band 4

Members

Provided by O'Farrell