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Estudio O'Farrell, Miguel Tesón, Buenos Aires, ARGENTINA

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Miguel Tesón

Work +541143461000
Estudio O'Farrell

Work Department

Tax - Compliance


Mr. Miguel Tesón joined Estudio O´Farrell in August 1990 in order to consolidate the practice of tax law in the new department of the firm. In April 1993 he was appointed partner in charge of this practice area.

He specializes in cross-border transactions, tax planning, transfer pricing, federal tax law and local taxes. He leads the defense strategy for cases related with relevant claims filed by the Tax Authorities.


Mr. Tesón provides tax advice to the principal clients of the firm and he also proves to have a broad experience in tax litigation as well as in complex litigation before the Supreme Court of Justice as per his extensive experience in the public and private practice.

These tasks involve a diverse range of industries including: telecommunications (Grupo Telefónica de Argentina), electricity generation and distribution (Grupo Pampa); gas distribution (Gas Natural Fenosa); highways (Grupo Concesionario del Oeste, AECSA); automotive (Ford); agribusiness (Nidera); retail (La Anónima).

In 1988 he was appointed as Secretary General (Secretario General) of the Empresa Nacional de Telecomunicaciones (ENTEL).

He frequently writes articles and essays on tax law matters in specialized magazines. He is also co-author of the book “Procedimiento Tributario”, published by Editorial Tesis, Bs. As., 1988.

Mr. Tesón was an associate professor at the University of Buenos Aires where he taught Finance and Tax Law; he was a regular professor at the Universidad Católica Argentina of Tax Law for 10 years and he was also professor of the Post-Graduate course on taxation at the Consejo Profesional en Ciencias Económicas (Professional Board of Economic Science).


Spanish and English


Currently he is member of the Instituto de Derecho Tributario de la Academia Nacional de Derecho y Ciencias Sociales de Buenos Aires.

As an active member of the Asociación Argentina de Estudios Fiscales (Argentine Association of Fiscal Studies), he served as Advisor, Treasurer and Secretary. He was also appointed President of said Association from 2013-214. He is also a member of the International Fiscal Association (IFA).


In 1982 he graduated from Facultad de Derecho y Ciencias Sociales of the Universidad de Buenos Aires (School of Law of the University of Buenos Aires).
He obtained a diploma in Public Administration from the University of Alcalá de Henares, Madrid, Spain.



Within: Leading lawyers

Miguel Tesón - Estudio O'Farrell

Within: Tax

The ‘outstanding’ Estudio O'Farrell impresses with its ‘valuable, effective and expedient advice’. Under the leadership of ‘exceptional advisor’, Miguel Tesón, the tax group has a broad focus that spans transfer pricing, transactional matters and tax litigation. Recent work includes advising the federal government on the local, provincial and federal tax aspects of a PPP project to develop and improve water resources. The growing prominence of the firm’s tax practice was recently reflected in the partner promotions of Valeria Estathio and María Celina Valls. Guillermo Lalanne is also a key contact.

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