Department profile
Marval O'Farrell Mairal

Tax

Global Guide 2026 : Argentina


Marval O'Farrell Mairal

Rankings

About

Provided by Marval O'Farrell Mairal

Marval’s tax department has an unrivalled range of expertise. Our team is equally strong in all types of advisory work, tax planning and transactional matters, as well as litigation before all levels of the courts.

Our tax department is renowned for assisting clients with sophisticated tax structures, complex cross-border transactions and high-profile tax litigation. We also have unmatched experience of advising clients on regional tax matters involving other Latin American jurisdictions.

Our tax department works closely with the firm’s market-leading corporate, finance and capital markets departments, particularly on M&A and other transactions.

Our tax practice covers a wide range of matters including:

  • Comprehensive tax advisory service
  • Advising in domestic and international transactions
  • Tax aspects of mergers & acquisitions, corporate reorganizations, foreign investments and international financial transactions
  • Tax advisory and planning services for individuals
  • Representation of clients before the Argentine tax authorities
  • Tax litigation before all levels of the local courts, including the Supreme Court
  • Advising and representation before local courts regarding Customs taxation 

Chambers Review

Provided by Chambers

Tax - Argentina

Band 1

Band 1


What the Team is Known For

Marval O'Farrell Mairal is a full-service firm with a front-running tax practice group. Its stellar team of practitioners is noted for advising a premier multinational client base on tax planning matters. The team regularly provides counsel on the tax efficiency of significant mergers and acquisitions, incorporations and financial transactions, as well as corporate reorganisations. The department also handles tax controversies concerning income, value-added and turnover tax at the municipal, provincial and federal levels.

Strengths

Provided by Chambers

  • Marval O'Farrell Mairal is distinguished by its strong business vision, practical solutions and attention to detail. The team is highly responsive and equipped to handle complex and sensitive matters.

    Tax respondentGlobal
  • Marval O'Farrell Mairal combines exceptional technical expertise with outstanding client service. Their ability to quickly understand and address complex issues is a key strength.

    Tax respondentGlobal

Notable Practitioners

Provided by Chambers

  • Band 1Gabriel Gotlib
    Band 1Gabriel Gotlib

    Gabriel Gotlib

    Front-running partner Gabriel Gotlib plays a key role in advising local and multinational clients on high-profile tax litigation, complex regulatory mandates and the fiscal implications of commercial agreements.

    • Gabriel Gotlib is a creative problem-solver with a deep understanding of business challenges and a strong track record of delivering effective solutions.

      Tax respondentGlobal
    • Gabriel Gotlib is an eminent tax law expert, known for his pragmatic approach and strong command of cross-border issues. He is business-savvy and solution-oriented.

      Tax respondentGlobal
  • Band 1María Inés Brandt
    Band 1María Inés Brandt

    María Inés Brandt

    Market-leading partner María Inés Brandt boasts extensive expertise advising notable multinational clients from the technology, banking and finance, and insurance industries on international tax planning, the fiscal implication of M&A transactions and administrative tax claims.

    • María Inés Brandt is one of the best tax lawyers in Argentina, with exceptionally profound knowledge. She is a highly informed lawyer who provides practical, commercial advice.

      Tax respondentGlobal
    • María Inés Brandt is known for her technical proficiency, exceptional client care and well-established reputation within the local market.

      Tax respondentGlobal
  • Band 2Walter César Keiniger
    Band 2Walter César Keiniger

    Walter César Keiniger

    Noteworthy partner Walter César Keiniger is commended by market commentators and clients alike for his solid advice on tax matters. He provides extensive guidance on both contentious and non-contentious mandates.

    • Walter Keiniger is problem-focused and leverages extensive knowledge to deliver tailored, effective solutions with impeccable attention.

      Tax respondentGlobal
  • Band 3Fernando Martín Vaquero
    Band 3Fernando Martín Vaquero

    Fernando Martín Vaquero

    Partner Fernando Martín Vaquero is often instructed by clients to advise on tax structuring issues, as well as significant matters pertaining to transfer pricing issues.

    • Fernando Vaquero is a skilled tax lawyer known for his courteous and attentive approach. He actively listens, responds swiftly and handles matters decisively.

      Tax respondentGlobal
  • Up and ComingSergio Daniel Vergara
    Up and ComingSergio Daniel Vergara

    Sergio Daniel Vergara

    Up-and-coming partner Sergio Daniel Vergara joins the rankings this year upon obtaining recognition for his activity in the Argentine tax realm.

    • Sergio Vergara is a solid lawyer who responds promptly with high quality work. He demonstrates strong skills and sound judgement.

      Tax respondentGlobal

Ranked Individuals at Marval O'Farrell Mairal (5)

Argentina

Members

Provided by Marval O'Farrell Mairal

Marval O'Farrell Mairal has rankings in the following guides

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