His practice has focused on the area of​​Tax Law, with his activity mainly concentrated on advising groups of industrial organizations in the financial and services sectors.

He has always been distinguished by combining a deep specialization in business tax law with a high capacity for deepening sectoral regulations, such as SOCIMIS, R&D Law and Innovation, Insurance, and other diverse matters. He is also a deep connoisseur of the Economic Agreement and an expert in controlling the constitutionality of tax regulations.

Likewise, he is a frequent speaker at various forums on tax matters and a professor in the master’s degree in Tax Consultancy at the University of Deusto.