Prof. Sjoerd Douma

Sjoerd Douma is Professor of International & European Tax Law at the University of Amsterdam, and a Partner at Lubbers, Boer & Douma. Prior to his appointment in October 2017, he was a professor at Leiden University. At the IFA Congress in Rio de Janeiro (2017), Douma was appointed as a Member of the Permanent Scientific Committee of the International Fiscal Association. Douma has specialized in corporate income taxation, tax treaties, European tax law (including Fiscal State Aid) and procedural law. He is a Member of the Board of the Dutch Association for International Tax Law (‘Nederlandse Vereniging voor Internationaal Belastingrecht’). Douma has been a Deputy Judge in the Court of Appeals of Arnhem-Leeuwarden and a Deputy Judge in the District Court of Haarlem in the Netherlands between 2005-2018. He is a permanent contributor to leading Dutch and international tax journals and has authored and co-authored numerous publications and reports on national, international and European tax law. He is a frequent speaker at high level domestic and international conferences and seminars. Prior to joining Lubbers, Boer & Douma in March 2017, Douma has been practicing tax law at one of the big four accountancy firms for more than 12,5 years. He has represented both natural persons and companies before the tax authorities, the European Commission, the Dutch Supreme Court and the Court of Justice of the European Union. Douma has acted multiple times as an expert witness in international arbitration and court proceedings. Before joining private practice, Douma was a legal clerk at the Dutch Supreme Court, where he wrote draft judgments and opinions of the Advocate-General.