Specialist in taxation, advising companies and individuals on wealth management, M&A, company transfers and corporate restructurings.

Carlos Onandia is an expert in advising professional limited liability companies and multinational groups, and in handling tax inspection procedures.

He is a member of the Barcelona Bar Association, the International Bar Association and the International Fiscal Association.

He regularly gives talks on inheritance and gift tax at IESE Business School and lectures in the Master in Tax and Legal Planning and Consultancy at Universitat Internacional de Catalunya.


  • Master in Tax Consultancy and Management
    ESADE Business & Law School

    Bachelor of Laws
    Spanish National Distance Education University

    Diploma in International Business Law
    City of London Polytechnic

    Diploma in Comparative Law
    Faculté internationale de droit comparé, Université de Strasbourg

Directory Mentions

Recommended lawyer
Chambers & Partners Europe, Chambers HNW and Best Lawyers in Tax, Family Law & Wealth Management, Life Science and Probates & Estates

Lawyer of the year
Best Lawyers in Probates & Estates, 2024