Diego Arribas

Senior Knowledge Lawyer

Spanish English

Member of Knowledge and Innovation Group, specializing in international tax.

Diego Arribas specializes in tax planning for large national and international business groups, including advising on international tax applied to individuals (e.g., tax residence and impatriate regime) and to companies (e.g., tax treatment of dividends and capital gains, application of double tax treaties, EU law, and implications of OECD BEPS Plan).

He completed a secondment in the knowledge management department of the Dutch law firm Loyens&Loeff in Amsterdam. He is a member of the Spanish Financial Law Association.

He is an associate lecturer at Universidad Complutense de Madrid and a senior lecturer at the university’s School of Legal Practice. He also lectures at several business school in Spain, including Instituto de Empresa and ESADE Business & Law School.


  • Doctor of Laws (summa cum laude honors by unanimous decision)
    Universidad Complutense de Madrid, 2022

    Master in Taxation and Tax Consultancy
    CEF Center for Financial Studies, Madrid, 2013

    Bachelor of Laws (with special distinction)
    Universidad de Zaragoza, Spain, 2012

    Bachelor of Business Administration and Management
    Universidad de Zaragoza, 2012