Ivan Diaz-Barreiro

Managing Director
20+ years of experience managing and advising businesses
Developed, launched and managed a profitable transfer pricing consulting practice
Leads transactions in food and beverage, banking and insurance, mining, oil and gas, pharma, private equity and telecom
Mexico City
@alvarezmarsal
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Ivan Diaz-Barreiro is a Managing Director with Alvarez & Marsal Tax in Mexico City. He specializes in transfer pricing, including global documentation projects and business restructuring transactions that involve assessing the value chain management process. His primary areas of concentration are tax valuation (shares, IP) projects within the scope of effective tax planning strategies.

With more than 20 years of transfer pricing and valuation experience, Mr. Diaz-Barreiro has also served as an expert witness before the Latin American tax authorities and the Mexican Telecom Authority. He was an Economic Advisor to Mexican agribusiness in a complex anti-dumping case.

Mr. Diaz-Barreiro’s notable projects include valuing a fiber optic network, defending Mexico´s biggest retailer tradenames portfolio, designing complex derivative transactions for telecom and mining industry players, and valuing dolphins in the context of an intricate business strategy. He has worked with clients across various industries, including food and beverage, banking and insurance, mining, oil and gas, pharma, private equity and telecom.

Prior to joining A&M, Mr. Diaz-Barreiro spent 11 years with a Big Four firm serving most recently as Partner/Principal in the Transfer Pricing practice, where he was characterized as an entrepreneurial, growth-focused executive with unique expertise in managing people, strategy, and planning.

Mr. Diaz Barreiro earned a bachelor’s degree in economics from Universidad Iberoamericana, an MBA (double finance concentration) from McGill University, and a Tax Certificate from The Mexican Accounting Institute. He also holds executive education diplomas from INSEAD, London Business School, Wharton School and MIT. He is a Certified Valuation Analyst with the National Association of Certified Valuators and Analysts (NACVA), Vice-Chair & founding member of the transfer pricing committee at IFA Mexico’s chapter and a member of the TP Commission at the Mexican Accounting Bar. Mr. Diaz Barreiro was recognized by ITR as one of the best transfer pricing advisors in Mexico.

Insights By This Professional

El 8 de septiembre de 2026 el Ejecutivo Federal presentó ante el Congreso de la Unión el Paquete Económico para el ejercicio fiscal 2027, integrado por los Criterios Generales de Política Económica, la Ley de Ingresos de la Federación y diversas iniciativas de reforma a la Ley del Impuesto sobre la Renta, la Ley Aduanera y la Ley Federal de Derechos, entre otros ordenamientos. La propuesta privilegia el fortalecimiento estructural de la recaudación —mediante mayor fiscalización y límites adicionales a las deducciones— por encima del incremento de tasas o la creación de nuevos impuestos, en un entorno de consolidación fiscal gradual.
Como parte de nuestra serie de comunicaciones sobre las recientes reformas a la LFPIORPI y sus Reglas de Carácter General, en esta ocasión abordaremos uno de los elementos más relevantes para la implementación del marco de cumplimiento: los mecanismos automatizados. En el sector financiero, este concepto suele asociarse con la infraestructura tecnológica, la cual constituye un componente esencial para la gestión de riesgos y el cumplimiento de obligaciones en materia de PLD/FT.
La creciente complejidad de las operaciones, el volumen de información y las exigencias de cumplimiento están transformando la manera en que las organizaciones gestionan sus procesos fiscales.
Como parte de una serie de comunicaciones sobre las recientes reformas a la LFPIORPI y sus Reglas de Carácter General, iniciaremos abordando el Manual de Políticas Internas, ya que constituye una de las primeras y más relevantes obligaciones que los sujetos que realizan Actividades Vulnerables deberán revisar, desarrollar o actualizar para adecuarse al nuevo marco normativo.
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