Mr Mathieu Ex > Deloitte Legal > Zaventem, Belgium > Lawyer Profile

Deloitte Legal
Mathieu Ex photo

Work Department

Greenille Private Client


Mathieu is a tax partner in the Greenille Private Clients team since 2011


With almost twenty years of experience he focuses on national and international tax and estate planning for high-net-worth individuals and entrepreneurial families. He advises and helps them to protect, structure and manage their wealth, a.o. through effective tax strategies.

Mathieu has a particular interest in the structuring of private (art) collections, yachts and charitable giving.

He has consistently been ranked in the Chambers High Net Worth annual guide.

Lawyer Rankings

Belgium > Tax

Deloitte Legal fields a circa 56-strong tax department, which works closely with Deloitte Belgium, enabling clients to benefit from a full spread of legal and consultancy services. Annick Visschers heads up a specialist tax controversy group, which advises on voluntary disclosure, tax audits and negotiations with authorities, and represents clients in tax litigation. Also notable is that an advisory team jointly led by managing partner Danny Stas (a specialist in VAT in real estate and financing transactions) and corporate international tax expert Tim Wustenberghs assists clients with matters connected with inbound and outbound tax planning, reorganisations and the tax aspects of corporate transactions. In addition to acting for multinational companies, the firm also attracts a significant amount of wealth management work from ultra-high net worth individuals and families; Mathieu Ex and Caroline Costermans co-head the private client team. Eric von Frenckell and Filip Smet are other names to note at the firm, which recently provided support to the European Parliament on a study concerning the protection of EU financial interests on customs and VAT.