Sonia Brahmi

Sonia is a Senior Associate at WH Partners where she primarily practices tax law. 

She specialises in tax transparency, advising financial institutions on the implementation of the FATCA-IGA regulations, and international groups with their Country-by-Country Reporting obligations. She also assists clients with the implementation of the Common Reporting Standard, providing staff training , advising on due diligence and reporting rules, and providing health-check services.

In addition, Sonia provides corporate tax advice, focusing on the implementation of  tax efficient structures for cross-border transactions.

Prior to joining WH Partners in May 2018, Sonia worked as a manager within the tax team at EY Jersey for 2 years. She formed part of the tax transparency team and primarily advised Trust and Company Services Providers, banks and investment funds on the implementation of their FATCA and CRS due diligence and reporting obligations.

Before joining EY Jersey, Sonia practiced in Malta with KPMG where for 2 years she advised on various international corporate tax matters and provided corporate services. She also practiced tax law in France where she started her career in 2009 with Taj-Société d’Avocats (member of Deloitte network), and then formed part of the tax team of Watson Farley & Williams.


Sonia graduated from the University Paris XI and Paris II Panthéon-Assas, specialising in business law and obtained a Master’s degree in taxation and corporate law at the University of Orléans in 2008. She was admitted to the Paris bar in 2012.

She also read for the Master of Arts in Financial Services at the University of Malta and submitted a thesis on the “Recent Developments in the move towards more global transparency and enhanced mutual assistance in direct tax matters” in 2015.

Contact Sonia for



We’re working as a family

Gisèle Halimi 


Top destination on your must-see list

South Africa

Want to schedule an appointment?

We are always ready to listen and offer services in different languages including Italian, Czech, Slovak, Russian, Polish, Serbian, German, French and Turkish.