Encompassing consulting, litigation and controversy, KPMG Mexico‘ tax practice provides comprehensive legal support, including audit defence, representation before administrative and constitutional courts, the handling of VAT and reimbursement claims, and matters before PRODECON. The team also has robust transfer pricing capabilities and demonstrates expertise in mutual agreement procedures (MAPs), treaty-based negotiations and the defence of pricing adjustments. Senior partner Ulises Castilla oversees the firm’s entire legal offering, but his practice centres on high-stakes tax matters, including audit defence, nullity & amparo proceedings, settlement negotiations before PRODECON, and procedural strategies before the Mexican Tax Authority (SAT). Castilla co-heads the fiscal practice with Armando Lara (head of the firm’s international tax division), who focuses on complex cross-border taxation, tax policy and fiscal planning. Other key partners in a deep senior bench include: Federico Garza who has over 30 years’ experience in tax consultancy and litigation; tax controversy and litigation expert Ricardo Perera; and Antonio Ramírez and Carlos Pérez Gómez, noted for their transfer pricing controversy expertise. Jose Alberto Gonzalez (tax disputes, compliance strategy and administrative procedures) in the Monterrey office; and Roberto Cardona (an October 2024 arrival from Baker McKenzie Abogados, S.C.), who focuses on tax controversy and consulting, and constitutional law, are also noted. Key associates include: Ariadna Castillo, director of the tax litigaiton and controversy solutions practice; Michael Sánchez O'Sullivan (in New York), who focuses on tax structuring and transactional advice – particularly as regards private equity; senior Enrique Martínez, who handles tax litigation and disputes, along with administrative litigation and appeals; and José Luis Hernández (in Monterrey), whose practice is centred on tax and administrative litigation, including defence strategies before tax, customs and trade authorities. All named lawyers are in Mexico City unless otherwise stated. Francisco Barajas joined from Garrigues Mexico in August 2025.
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Testimonials

Collated independently by Legal 500 research team.

  • 'The tax litigation team is constantly attentive to its clients' needs, keeping them informed in real time of the matters under its responsibility. They build trust and great synergy to achieve positive results. José Alberto Gonzálezhas provided us with exceptional service; he is a great professional.'
  • 'We would highlight the firm's collaboration and follow-up on our cases, as well as timely raising of relevant issues, timely follow-up and feedback.'
  • 'It's a very technical and professional firm in the delivery of reports. They've introduced a very important area for digital transformation, which is primarily focused on tax and transfer pricing compliance.'
  • 'They're always attentive to changes in legislation and offer innovative alternatives. They're professional, but they have a strong relationship with their clients and are easy to contact daily.'

Lawyers

Leading partners

The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Next Generation Partners

Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Francisco Barajas

Practice head

Ulises Castilla; Armando Lara

Other key lawyers

Federico Garza; Ricardo Perera; Antonio Ramírez; Carlos Pérez Gómez; José Alberto González; Roberto Cardona; Ariadna Castillo; Michael Sánchez O’Sullivan; Enrique Martínez; José Luis Hernández