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Beccar Varela

Santiago Montezanti

Santiago Montezanti



  • Tax Law

WSG Practice Industries


Beccar Varela

WSG Leadership

IFA Group
Tax Group
Santiago L. Montezanti is a partner at Beccar Varela, having joined the firm in 2010, with the Fortunati & Asociados merger. He heads the firm’s Tax Law Department. He focuses on tax law.

He is a member of the Buenos Aires Bar Association, the Colegio de Abogados de la Ciudad de Buenos Aires, the International Fiscal Association (IFA), the International Bar Association (IBA) and the Argentina Association of Fiscal Studies (Asociación Argentina de Estudios Fiscales).


Santiago obtained his Law degree from Universidad de Buenos Aires (Summa cum laude, 1999). In addition, he obtained a degree as a Specialist in Tax Law from Universidad Austral. Prior to joining Beccar Varela, Santiago was partner in charge of the Tax Law Department at Fortunati & Asociados, which he joined in 2005.
Professional Career

Significant Accomplishments

Santiago has been recognized by Chambers Latin America, Chambers Global, The Legal 500, Who’sWhoLegal and Latin Lawyer 250.

Professional Associations

  • International Bar Association
  • International Fiscal Association

Banking and Financial Institutions and Tax Law Departments Report Decree No. 301/2021: Regulation of Tax on Credits and Debits
Beccar Varela, May 2021

Through Decree No. 301/2021, published in the Official Gazette on May 8th, 2021 (the “Decree”), the National Executive Power provided certain modifications to the Tax on Credits and Debits in Argentine Bank Accounts and Other Operations (the “Tax”), established by Competitiveness Law No 25,413 and its amendments (the “CL”)...

Regulation of the “Knowledge Economy Promotion Regime”: Decree No. 1034/2020
Beccar Varela, December 2020

Through National Executive Branch Decree No. 1034/2020, published in the Official Gazette on December 21, 2020: (i) Regulations of Law No. 27,506 and its amendments -also known as “Knowledge Economy Promotion Regime” (hereinafter, the “Regime” or the “Law”)- were approved; and (ii) the export duties applicable to the provision of services included in subparagraph c), of paragraph 2, of section 10 of Law No...

Additional Articles

He has published a book and several articles about tax law and has lectured in seminars and meetings on tax issues in Argentina and abroad.

WSG's members are independent firms and are not affiliated in the joint practice of professional services. Each member exercises its own individual judgments on all client matters.

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