International Tax Practitioners

International Tax Practitioners

A Global Alliance of Independent Firms

Professional Profile

Mario Difino, Partner | +39 02 8901 1039


Meet Mario

Mario started his career as a tax adviser and in 1986 joined with Ambrogio Picolli to form Picolli, Difino & Associati. He has over 35 years of professional experience with a broad background in tax, accounting, audit, corporate law and tax litigation. He specializes in servicing international corporate clients doing business in Italy and Italian companies with cross-border tax situations, including transfer pricing and taxation of expatriates. Mario is a member of the Italian Institute of Certified Public Accountant (Ordine dei Dottori Commercialisti e degli Esperti Contabili) and a registered auditor (revisore legale). He also advises companies on accounting matters and acts as senior member of supervisory boards or audit committees.

Mario is author of several articles on taxation, accounting and corporate governance and is a regular speaker at seminars on tax and accounting matters organized by the Institute of Certified Public Accountants and by other legal and professional training institutes.


  • Member of Supervisory Boards ( 1978 – Present )
  • Tax adviser ( 1980 – Present )
  • Partner, Picolli Difino & Associati ( 1986 – Present )
  • Legal auditor ( 1988 – Present )
  • Certified Public Accountant ( 1988 – Present )

Professional Affiliations/Certifications

Dottore Commercialista (Italian certified public accountant)

Revisore Legale (legal auditor)

Consulente Tecnico del Tribunale di Milano (adviser to the Milan Court)

Educational Background

Università Commerciale L. Bocconi, Milan