Tax Law
Juan Carlos De Obeso Orendain
Recognized in Best Lawyers since 2026 Awarded Practice Areas
Biography
Juan Carlos de Obeso Orendain is a top attorney recognized by Best Lawyers in the practice area of Tax Law. Based in Guadalajara, Mexico, he has been recognized since 2026. This distinction is the result of an exhaustive peer-review process, reflecting the high regard in which he is held by other leading lawyers in his field.
Juan Carlos is a partner and attorney at Ramos Castillo Abogados, S.C., where he leads the firm’s Tax, Administrative, and Constitutional Law practices. With a professional career spanning over two decades, he began his legal journey as an assistant at Gómez Arnaiz Abogados, S.C., where he later became a partner, managing a significant portfolio of cases before federal and state courts.
Since 2006, he has been a faculty member at the Instituto Tecnológico y de Estudios Superiores de Occidente (ITESO), where he has taught more than 35 courses across various areas of law and has also served in academic coordination roles. He holds a Law Degree from ITESO, graduating with honors, and has completed postgraduate studies specializing in Tax Law and Constitutional Law.
He has been recognized as an Honorary Member of the Public Accountants Association of the University of Guadalajara and as an Honorary Tax Attorney by the Bar Association of Jalisco. He has also participated as a speaker at leading legal forums and has chaired the Tax Law Committee of the Mexican Bar Association, Jalisco Chapter.
Currently, he combines his legal practice with his academic work, establishing himself as a leading figure in strategic litigation and specialized consulting in the fields of Tax and Administrative Law.
Overview
Client Testimonials
Awards & Focus
Recognized in The Best Lawyers in Mexico™ 2026 for work in:
- Tax Law
Additional Areas of Practice:
- Administrative Law
- Construction Law
News & Media
Case History
Cases
- Summary of Representative Matters
Under the leadership of Juan Carlos de Obeso Orendain, partner at Ramos Castillo Abogados, S.C., the firm has built a solid track record in tax, administrative, and constitutional litigation, successfully representing national companies in high-stakes and complex proceedings.
Key accomplishments include:
Key accomplishments include:
- Defense in VAT refund denials, securing the protection of taxpayers’ rights for clients in industries such as manufacturing, transportation, construction, and medical technology.
- Challenges against multimillion-peso tax assessments issued by federal and state tax authorities, involving Income Tax (ISR), Value Added Tax (VAT), and withholding obligations.
- Representation in federal administrative litigation, including cases brought under the exclusive resolution of substantive issues procedure before the Specialized Chamber in Mexico City, achieving favorable precedents in tax matters.
- Advisory and representation for companies with international operations, particularly regarding export transactions and the recovery of VAT balances.
- Management of appeals and amparo proceedings (direct and indirect), several of which have been admitted by the Supreme Court of Justice of the Nation due to their legal and economic relevance.
- Successful litigation in labor and social security matters, obtaining the annulment of rulings issued by the Ministry of Labor and the Mexican Social Security Institute, with amounts exceeding MXN 5 million.
- Strategic representation across the industrial, agribusiness, medical, and infrastructure sectors, handling tax controversies totaling more than MXN 150 million.
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