Prof. Dr Sjoerd Douma

“Our faculty is not only academically excellent but also connected to the practice: private practice, tax authorities, government and the judiciary. Our ambition is to train highly-skilled, good international lawyers who stand out in the market and can make a difference!”

Programme Director
Prof. Sjoerd Douma

Sjoerd Douma has been appointed professor of Inter­national and European Procedural Tax Law at the ACTL, effective 1 October 2017. He will be combining his chair with his position as partner at Lubbers, Boer & Douma.

Sjoerd Douma is specialised in tax treaty law, EU tax law and procedural tax law. He analyses the legal instruments that states and international organisations deploy to prevent double taxation and double non-taxation, as well as the ways in which they can do so more effectively and which boundaries they must observe in doing so.

Before joining the UvA, Douma was a professor at Leiden University, where his duties included heading the Honours College Law. He has also taught at various universities, among them the Université de Panthéon-Assas in Paris. He is Deputy Justice at the Arnhem-Leeuwarden Court of Appeal.

Douma has been a partner with the law firm Lubbers, Boer & Douma since 2017. In 2004-2017 Douma worked as a tax consultant with PriceWaterhouseCoopers Belastingadviseurs N.V. Prior to that he was employed by the research department of the Dutch Supreme Court.


“Studying international tax law in one of the most relaxed cities in the world: a perfect combination.”

ACTL Director
Prof. Dr Dennis Weber

Dennis Weber is a professor of European corporate tax law at the University of Amsterdam, director and founder of the ACTL, and a guest lecturer at various universities worldwide. He is affiliated with Loyens & Loeff, where he heads the European tax law team and acts as a consultant, mainly to multinational organizations. He has been involved in numerous proceedings in the field of European tax law before the Dutch courts, the European Court of Justice and foreign courts. Dennis is also: one of the founders of the Group for European and International Taxation (GREIT); founder of the EU Tax Law Group (an independent group of tax lawyers focusing on European tax law); the coordinator of the international and European tax law programme of the Netherlands Association of Tax Lawyers (NOB); a board member of the NOB’s European tax law section; and the general editor and founder of the Journal Highlights & Insights on European Taxation. Dennis has published more than 60 articles on European tax law in national and international professional journals and has edited 17 books.


“The IBFD is very excited about joining forces with the University of Amsterdam to create an LLM with a teaching programme that is based firmly on the research activities of both institutions and offers a combined theoretical and practical analysis of international tax law.”

IBFD Academic Chairman
Prof. Dr Pasquale Pistone

Prof. Dr Pasquale Pistone is the Academic Chairman of the IBFD and, in that capacity, member of the Executive Board of the EATLP (European Association of Tax Law Professors) and of the Permanent Scientific Committee of IFA (International Fiscal Association). He holds a Jean Monnet ad Personam Chair in European Tax Law and Policy at WU Vienna University of Economics and Business (Austria) and is Associate Professor of Tax Law at the University of Salerno (Italy). Pasquale has been a member of the ECJ Task Force of the Confédération Fiscale Européenne since 2008, an honorary member of the Instituto Uruguayo de Estudios Tributarios since 2007 and an honorary member of the Malta Institute of Management since 2011. He is a founding member of the GREIT (Group for Research on European International Tax Law), of ILADT’s research project on a model tax convention for Latin-America, of WU Wien’s research project on international tax coordination and of the DeSTaT project on global fiscal transparency and developing countries (funded by the Norwegian Research Council).


“I am delighted that the long­standing relationship between the UvA and IBFD has resulted in such a promising LLM programme, a programme that takes a holistic and policy-oriented view to taxation and that perfectly fits the current era.”

UvA Faculty and Chairman of IBFD Board of Trustees
Prof. Dr Stef van Weeghel

Prof. Dr Stef van Weeghel is professor of international tax law at the ACTL (tenure since 2000). Stef graduated from the University of Leiden (business law, 1983; tax law, 1987) and obtained an LLM in taxation from New York University (1990). In 1997 he received a doctorate in law from the University of Amsterdam (PhD thesis: Improper Use of Tax Treaties).

At the University of Amsterdam his research focuses on tax treaty abuse and the interaction between domestic anti-avoidance rules and tax treaties. In 2010 he was the general reporter for Subject 1 (Tax treaties and tax avoidance: application of anti-avoidance provisions) at the IFA Congress in Rome. He has authored and co-authored several books and many articles on Dutch and international taxation and has lectured extensively in the Netherlands and internationally.

Stef is also Global Tax Policy leader at PwC. Before joining PwC, Stef was a partner at Linklaters (2007-2009) and associate and then partner at Stibbe (1987-2007). In 2000 Stef was a member of the Van Rooy Committee that advised the Dutch government on corporate income tax reform. In 2009/2010 he was chair of the Study Group Tax System, a committee that advised the Dutch government on comprehensive tax reform.

He was longtime member and then chair of the Permanent Scientific Committee of the International Fiscal Association and chair of the Dutch branch of IFA. He is chair of the Board of Trustees of the International Bureau for Fiscal Documentation.


Dr J. (Joanna) Wheeler

Dr Joanna Wheeler

Joanna Wheeler is currently seconded to the ACTL from IBFD, where she is a senior member of the tax research staff. She has been the editor of many different IBFD publications and was the founding editor of IBFD’s database on the taxation of trusts. Joanna was also the pioneer of IBFD’s programme of online courses and has taught regularly for IBFD classroom courses and a guest lecturer for the universities of Cambridge, Leiden, London (the Institute of Advanced Legal Studies) and Lausanne. Joanna was a member of the Research Subcommittee of the International Fiscal Association (IFA) for many years, and was general reporter for the IFA Congress held in Kyoto in 2007 on the topic “Conflicts in the Attribution of Income to a person”. In 2010 she was invited to join STEP (the Society of Trust and Estate Practitioners) as an academic member, and in 2012 she was awarded her PhD by the University of Amsterdam. She is a member of the editorial board for the Global Tax Treaty Commentary.

Prof. Mr. Dr M.E. (Mariken) van Hilten

Prof. Dr Mariken van Hilten

Mariken van Hilten studied tax law at Leiden University (1983-1987) and obtained her PhD. In 1992 on the subject of financial transactions in the European VAT. From 1987 on, she was VAT and Customs consultant, first with (what currently is) PricewaterhouseCoopers and afterwards at KPMG.
In 1998 Mariken van Hilten left tax consultancy and became an appellate tax judge, first at the Court of Appeal at ‘s-Hertogenbosch, and from 2002 on, at the Amsterdam Court of Appeal. In 2007 she was appointed Advocate-General in the Hoge Raadder Nederlanden (the Supreme Court of the Netherlands). As from September 2015, she is judge in the (tax section) of the Hoge Raad der Nederlanden. Between 1997 and 2002 she was professor of indirect taxes at Leiden University and from 2009 to 2012 she held the temporary chair of indirect taxation at Vrije Universiteit Amsterdam. Since January 2016 she is professor of indirect taxes at University of Amsterdam. She had published extensively on VAT and customs law and is a regular speaker at seminars and conferences.

Prof. Dr O. (Otto) C.R. Marres

Prof. Dr Otto Marres

Prof. Dr Otto Marres is a professor in corporate tax law (tax base integrity) at the University of Amsterdam and a member of the Amsterdam Centre for Tax Law (ACTL). He is also a tax lawyer at Meijburg & Co. and served as a substitute judge at the Court of Appeal of The Hague. Furthermore he is editor of two professional publications. He published a book on interest deduction and a book on dividend tax, and various reports, articles and annotations on Netherlands tax law, tax treaty law and EU law.

Dr Vassilis Dafnomilis

Vassilis Dafnomilis is an assistant professor at the University of Amsterdam (UvA) and the academic coordinator of the UvA/IBFD Adv. LLM Program. Next to UvA, Dafnomilis is working as a manager at the Knowledge Centre of PwC Netherlands and IBFD correspondent for Greece. Vassilis specializes in international and European tax law.

“We make sure that the students stay up-to-date on current developments by organizing technical meetings throughout the year. During these meetings, we discuss topical issues with our students, e.g. the impact of MLI, or EU State aid law or issues related to taxation of digital economy.”

Dr B. (Bruno) da Silva

Dr Bruno da Silva

Bruno da Silva is a research associate and lecturer at the Amsterdam Centre for Tax Law (ACTL) of the University of Amsterdam where he obtained his PhD in International and European tax law. He is also a tax lawyer at Loyens & Loeff and the international tax counsel for the Financial Services Bureau of Macao SAR, China. Bruno is a guest lecturer at other universities such as the International Tax Center of Leiden University, and the Universidade Catolica Portuguesa. Bruno received his law degree from the University of Lisbon. He holds a postgraduate degree in corporate tax management from the Technical University of Lisbon, a postgraduate degree in taxation from Instituto Superior de Gestao and a postgraduate degree in domestic and international tax planning from the University of Lisbon. He obtained his LLM in international tax law from the WU Vienna University of Economics and Business where he was granted the Siemens award for the best paper. Bruno is a correspondent for Highlights & Insights on European Taxation and for EU Tax Alert. He previously worked for several years as a tax lawyer in Portugal for the law firm Cuatrecasas, Goncalves Pereira.

Prof. Dr H. (Hein) Vermeulen

Prof. Dr Hein Vermeulen

Prof. Dr Hein Vermeulen is a professor of Tax Law at the Amsterdam Law School Law of the University of Amsterdam, where he is the chair of the Department of Tax Law and where he lectures on European and International Tax Law. He studied law with a specialization in tax law in Amsterdam and obtained a doctorate in tax law at the University of Amsterdam with a dissertation on the cutting edge of tax law, civil law and administrative law. He is also a Member of the Editorial Board of the IBFD’s Journal Articles collection Derivatives & Financial Instruments, Vakstudie Nieuws and author of Highlights & Insights on European Taxation, Kluwer Law International. In addition, Hein also works for the EU Direct Tax Group (EUDTG) of PwC in Amsterdam.

Prof. Dr P. (Peter) J. Wattel

Prof. Dr Peter Wattel

Peter J. Wattel has been a professor of EU tax law at the University of Amsterdam since 1992 and an Advocate-General in the Hoge Raad der Nederlanden (Netherlands Supreme Court) since 1999. Before that he was a finance trainee with the Royal Dutch/Shell Group and a senior assistant professor at the Universities of Maastricht (private law) and Amsterdam (tax law). He served as a substitute judge in the Courts of Appeal of Amsterdam (criminal chamber) and Den Bosch (tax chamber), and was of counsel to Ernst & Young Tax Advisers. He teaches EU tax law, international tax law and tax procedure in the national and international curricula of the University of Amsterdam. He has published eight books, including the world standard reference work on European tax law (with Ben Terra) and some 400 articles and comments on law and taxation. He is a member of the Royal Netherlands Academy of Sciences, and editor of the Nederlands Juristenblad (the leading general law review in the Netherlands).

Anna Vvedenskaya

Anna Vvedenskaya is the tutoring assistant of the UvA/IBFD Adv LLM Program in International Tax Law. She is an alumna of the program (2019). Prior to her arrival in Amsterdam, Anna had obtained a Bachelor’s and Master’s degree in Civil Law in Moscow, Russia. She worked over 8 years as a tax specialist in KPMG and multinational companies in Moscow. In addition, Anna participates in Research Project ‘Designing the tax system for a cashless, platform-based and technology-driven society’ in the University of Amsterdam.

“It was a once in a life-time experience for me to be a student of this Program. In one very challenging year, you get a break from your daily routine, meet many wonderful people, have fun every single day, and learn from a team of world-famous professionals who guide you through the complexity of international tax law.”


Prof. Dr Betty AndradeProf. Dr Betty Andrade

Prof. Dr Betty Andrade Rodríguez is Managing Editor of the Global Tax Treaty Commentaries (GTTC), and Scientific Coordinator of the Observatory on the Protection of Taxpayers’ Rights (OPTR). She obtained her law degree summa cum laude from Andrés Bello Catholic University, in Caracas, and holds an LLM and a PhD in Law from the Central University of Venezuela. She is a tenured associate professor in the Tax Law department and professor of Human Rights and Taxation in the MSc in Constitutional Law at Andrés Bello Catholic University. She has taught Municipal Taxation in the LLM in Tax Law at the Central University of Venezuela, Tax Procedural Law at the Metropolitan University and postgraduate courses at the Institute of Professional Development of Chartered Accountants of Miranda State in Venezuela. She has lectured extensively at conferences in Venezuela and abroad. Betty is a member of the Latin American Tax Law Institute (ILADT), the Panamanian Financial and Tax Law Association (APADEFT) and the Venezuelan Tax Law Association (AVDT), and was a member of the editorial board of the Venezuelan Tax Law Journal from 2007-2009.


Fabiola Annacondia

Fabiola Annacondia is the Editor of IBFD’s International VAT Monitor journal and the EU VAT Compass book. Ms Annacondia worked as a fiscal auditor (tax inspector) for 11 years with the Argentine tax authorities and taught Indirect Taxation at Buenos Aires University, Argentina. Ms Annacondia joined IBFD as a country specialist for Latin America in 2000 and has worked for IBFD’s VAT Knowledge Group since 2001. Ms Annacondia also lectures and publishes regularly on a wide variety of VAT-related topics. In recent years, she has presented at OECD workshops in China, South Korea and Mexico and speaks regularly at VAT Conferences around the world. Ms Annacondia holds a postgraduate degree in International Tax Law from Barcelona University, a postgraduate degree in Tax Law from the Argentine Social Museum University and studied Comparative Tax Policy and Administration at Harvard Kennedy School.

Prof. Jan de Goede

Prof. Jan de Goede

Prof. Jan J.P. de Goede, Senior Principal, Tax Knowledge Management, has held several positions at IBFD including Director of the Knowledge Centre. He performs various academic, teaching and government consultancy activities and is liaison officer for relations with the OECD, UN (member of the UN Subcommittee on the Taxation of Extractive Industries) and ICC (member of its Tax Committee).
Mr De Goede is Professor of International and European Tax Law at Łodz University in Poland, and visiting Professor at both the Renmin University of China in Beijing and the Finance University of the Government of the Russian Federation in Moscow. He previously worked for 19 years at the Dutch Ministry of Finance Heading the Divisions of Company Tax Legislation and of Bilateral Tax Treaties.

Carlos Gutierrez Puente

Carlos Gutierrez Puente

Carlos Gutiérrez Puente is Principal Research Associate at IBFD Tax Services. Prior to joining IBFD, he was a legal adviser with the International Legislation Department of the Chilean tax administration, where he was responsible for tax treaty negotiation and interpretation and for drafting direct tax legislation.
Mr. Gutiérrez obtained his law degree at the University of Chile and a master’s degree (LLM) at Queen Mary College, the University of London.

Prof. Dr Victor van Kommer

Prof. Dr Victor van Kommer

Prof. Dr Victor van Kommer has been with the IBFD since 2000 and a member of its executive board since 2008. Currently he is the director of tax services; his previous functions were the director of the knowledge centre, the head of the tax services department and the head of the government consul­tancy department. Victor was a professor of tax administration in the law faculty of the University of Utrecht from 2009 to 2011 and has been a professor of tax policy in the Utrecht School of Economics since 2011. He is also a visiting professor at the technical Universities of Riga and Lodz and the Malaysian Tax Academy, and chair­man of the supervisory board of KIZO (Knowledge Institute for Independent Professionals). Before joining the IBFD, Victor was a member of the management team of the FIOD (the tax fraud investigation department of the Netherlands). His previous posts with the Dutch government include being the head of the planning and control directo­rate of the General Tax and Customs Administra­tion, a member of the task force on the reorgani­sation of the tax administration, the head of assessment policy for Amsterdam and Rotterdam and a tax inspector. He studied tax law at the University of in Leiden and obtained his PhD from the same university in 1998; he has also studied international relations in Clingendael and attended the diplomatic school of the Netherlands Ministry of Foreign Affairs.

Dr Alessandro Turina

Dr. Alessandro Turina is a Senior Research Associate at IBFD Academic, where he focuses on International and European Tax Law  and he is the managing editor of International Tax Studies. He holds an LLM from the University of Michigan Law School and a PhD in International Economic Law (with focus on International Tax Law) from Bocconi University (Italy), where he also currently serves as a visiting lecturer. He also holds or has held visiting lecturerships at the University of Florida Graduate Tax Program, the University of Fribourg (Switzerland) and the Catholic University of Lille (France).  Dr Turina is or has been a contributing member of several international research projects (DIGITAX, EUDISCOOP, DESTAT) and regularly publishes in his main areas of competence. Previously, Dr Turina has been a post-doctoral fellow at IBFD Academic and at the Tax Policy Center of the University of Lausanne.

Luis Nouel

Luis Nouel is a Principal Research Associate in IBFD’s Knowledge Centre in Amsterdam. Prior to joining IBFD he worked for the International Tax Services group of Ernst & Young in the Netherlands and in Venezuela focusing on corporate taxation and international tax planning for multinational corporations.
He also worked for the Venezuelan tax authorities, where he was responsible for tax treaty negotiations as well as for drafting direct and indirect tax legislation, and provided legal support to the National Audit Office. Mr Nouel has a law degree and a specialization in Tax Law from the Catholic University Andrés Bello, and an advanced LLM in International Taxation from the University of Leiden, the Netherlands.

Prof. Dr Carlos E. Weffe

Prof. Dr Carlos Weffe

Prof. Dr Carlos E. Weffe is Scientific Coordinator of the Observatory on the Protection of Taxpayers’ Rights (OPTR). He obtained his law degree from Andrés Bello Catholic University, in Caracas, and holds an LLM in Tax Law and a PhD in Law from the Central University of Venezuela. Carlos is a tenured associate professor in the department of Public Finance (of which he served as head from 2010-2016), professor of Human Rights and Taxation in the PhD in Law and professor of Criminal Tax Law in the LLM in Tax Law at the Central University of Venezuela. In addition, he is professor of Tax Law at Monteávila University. He has taught undergraduate and graduate courses in Constitutional and Administrative Law, Criminal Tax Law, Procedural Tax Law and International Tax Law at Andrés Bello Catholic University, the Metropolitan University, the Institute of Higher Administration Studies (IESA) and other Venezuelan Universities. He has lectured extensively at conferences in Venezuela and abroad. Carlos is a member of the Latin American Tax Law Institute (ILADT), the Panamanian Financial and Tax Law Association (APADEFT), the Mexican Academy of Tax Law (AMDF) and the Venezuelan Tax Law Association (AVDT).

Wim Wijnen

Prof. Wim Wijnen

Prof. Wim Wijnen is Counsel to the Director of the Knowledge Centre of IBFD, Visiting Professor International Tax Law at LUISS Rome (1995-present) and Executive Director of the International Association of Tax Judges (2010-present). He started his career working in a law firm in Amsterdam (1973-1977) and as a tax inspector in the Netherlands tax administration (1977-1979). He later worked (the last years as head) at the Bilateral Affairs Division of the International Fiscal Affairs Department of the Netherlands Ministry of Finance (1979-1991). He was a tax advisor with Loyens & Volkmaars (1991-1993). He was head of the IBFD research staff and in that capacity statutory director of the IBFD (1993-2003). He was liaison officer and observer at the meetings of the Group of Experts of the United Nations (1995-2005) and substitute Judge of the Court of Appeal, Den Bosch (1998-2015).

Bart Kosters

Bart Kosters is a Senior Principal Research Associate in IBFD’s Tax Services Department in Amsterdam. He has over 30 years of experience in domestic and international taxation. His areas of expertise are, amongst others, drafting of personal income tax and negotiation and application of double taxation conventions including conducting mutual agreement procedures and litigation.
Prior to joining IBFD in 2001 he worked for the Dutch tax administration and as a senior policymaker in the Ministry of Finance of the Netherlands. Mr Kosters has provided technical assistance as key expert to governments in a large number of African and Asian countries in the areas of tax policy, negotiation and application of tax treaties, drafting tax legislation and the international aspects of domestic taxation. He has also provided training to tax authorities including those of India, the United States, Malaysia, Botswana, Bhutan and Norway, the Big 4 and the European Commission.
Mr Kosters holds a master’s degree in Tax Law from Leiden University, the Netherlands and has lectured International Tax at Radboud University Nijmegen, the Netherlands. Furthermore, he is responsible for IBFD’s Tax Training courses in South East Asia and is a permanent contributor on international tax matters for a leading weekly tax magazine in the Netherlands and is a regular speaker at tax conferences.

Anuschka Bakker MBA

Manager of the IBFD Transfer Pricing and Specialist Knowledge Group

Prof. Dr João Nogueira

Deputy Academic Chairman and Team Manager of the IBFD Academic

Belema Obuoforibo

Director of the IBFD Knowledge Centre and Member of IBFD’s Executive Board

Ola Ostaszewska

Team Manager of the IBFD European Knowledge Group


Uw naam


Naam ontvanger

E-mail adres ontvanger

Uw bericht








Uw naam

Uw e-mail adres

Naam ontvanger

E-mail adres ontvanger

Uw bericht