Siéphane Austry is a tax partner at CMS Francis Lefebvre Avocats since 2007. He contributes to the firm’s tax intelligence department and coordinates the tax litigation and controversy group of the firm on domestic and international tax issues.
Before that he has spent 15 years in top positions within the French government, He is a former member of the State council and was also adviser on tax policy to the minister of economy, finance and industry (1997-2000). He was financial counsellor at the French embassy in Japan (2003-2007), He is a recognised expert in handling high -profile tax litigation before domestic courts, including France Constitutional Court, and international courts such as the EC.) or the ECHR. He also has extensive experience on international taxation and the interpretation and application of tax treaties