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Juliana Porchat de Assis

Languages
  • Portuguese
  • English
  • Spanish
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Juliana Porchat de Assis leads the Tax Advisory practice at FAS Advogados.

With extensive experience in Tax Law and a career developed at leading law firms and Big Four firms, Juliana has advised on a wide range of M&A transactions and corporate reorganisations, in addition to having led global tax reorganisation projects for both Brazilian and multinational companies.

She also has experience in matters related to Brazil’s Tax Reform and currently focuses on helping companies assess its impacts and develop strategies to adapt to the new tax system.

Relevant experience

  • Author of a chapter titled "Brazilian Taxation of Profits Earned Abroad by Direct and Indirect Affiliates According to Law 12.973/14" in the book "Current Topics in International Taxation" - Brazil 2020
  • Co-author of the publication "Guide to Tax Transactions in Latin America," a book by Baker & McKenzie, in the years 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, and 2020
  • Co-author of the article published by Bloomberg Law, "Interest on Own Capital in Brazil and U.S. Hybrid Dividend Rules," on June 12, 2020
  • Co-author of the article published by Bloomberg Law, "Brazilian Interest on Own Capital After the U.S. Tax Reform," on November 9, 2018
  • Co-author of the article published by the International Tax Review, "The Deductibility of Royalties Paid Abroad: The New Environment in Brazil," on September 26, 2018

Memberships & Roles

  • Member of the Brazilian Bar Association (OAB)
  • Member of the Diversity and Inclusion Committee "FAS Pra Todxs"
  • Speaker at seminars and conferences in Brazil and abroad

Awards & Rankings

  • Worl Tax - ITR
    Notable Practitioner - General Corporate Tax - 2023, 2024, 2025, 2026
    Woman in Tax Leader - 2025, 2026
     
  • LACCA Aproved
    Tax - 2022, 2024, 2025, 2026
     
  • Leaders League
    Tax Advisory - 2025, 2026
    Tax Financial Services - 2026

Education

  • 1999 – Bachelor's Degree in Law from the FMU University Center 
  • 2001 – Specialization in Business Law from the Pontifícia Universidade Católica in São Paulo (PUC-SP)
  • 2004 – MBA in Finance from Millsaps College 
  • 2006 – Extension Course in Taxation of the Financial Market from the Fundação Getúlio Vargas in São Paulo (FGV-SP) 
Practice Areas

Insights by Juliana

From rules to results: where tax reform begins to affect businesses

From rules to results: where tax reform begins to affect businesses

20 Aug 2026 8 min read
Tax reform and electronic tax invoices: why the change requires attention beyond the tax function

Tax reform and electronic tax invoices: why the change requires attention beyond the tax function

03 Aug 2026 5 min read
Quickly Travel Discusses Tax Reform with Executives

Quickly Travel Discusses Tax Reform with Executives

06 May 2026 1 min read
Legal Outlook 2026 - Brazil: strategic trends across key practice areas

Legal Outlook 2026 - Brazil: strategic trends across key practice areas

02 Feb 2026 2 min read
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