Chairs of IFA Warsaw Conference 2019

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Murray Clayson

Foto_Robert Danon

Prof. Dr. Robert J. Danon


Prof. Dr. Joachim Englisch


Karl-Heinz Haydl

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Prof. Guglielmo Maisto

Tomasz Michalik_Photo

Tomasz Michalik

Foto_Fernando Serrano

Prof. Fernando Serrano

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Robert van der Jagt

Foto_Maarten van der Weijden

Maarten van der Weijden

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Scott Wilkie

Murray is President of the International Fiscal Association (
Murray is a partner in the tax practice at Freshfields Bruckhaus Deringer LLP, London. He specialises in all aspects of corporate and financing transactions and structuring, tax dispute resolution and transfer pricing. He advises a range of multinational corporations and financial institutions on their own account UK and international tax positions.
Murray was educated at Cambridge University (M.A., LL.M) and holds a PhD from London University for research in the field of financial transfer pricing. He is a fellow of the Chartered Institute of Taxation and a member of the ICC UK’s Committee on Taxation.

Robert J. Danon is Professor of International Tax Law at the University of Lausanne (Switzerland) and is the Chairman of the Permanent Scientific Committee of the International Fiscal Association (IFA). He is also a founding partner of Danon & Salome, an independent tax firm. His practice and research interests focus on tax treaty disputes, treaty abuse, dispute resolution, international tax policy as well as the taxation of the digitalized economy. Professor Danon regularly advises and renders opinions and second opinions to multinational companies and serves also as an expert witness in complex international tax issues, notably in arbitration cases. Professor Danon is regularly involved in the public consultations organized by the OECD and advises governments. In 2015, he was for instance appointed by Switzerland’s finance minister to analyse the country’s corporate tax reform

Dr Englisch holds a chair for tax law and public law at Münster University. Since 2011, he is also the managing director of the institute for tax law at this university. Currently, Dr Englisch holds the Alfred-Grosser-Chair 2018/2019 at Sciences Po Paris where he carries out research on tax implications of digitalisation. His main research activities are devoted to International and European tax law covering both, direct and indirect taxation. Dr Englisch has published and lectured extensively on a broad range of related topics. He was invited as a visiting professor for LL.M. courses on international and European tax law at several European universities. Dr. Englisch also acts as an advisor to the OECD Committee on Fiscal Affairs, and he is a perma-nent member of the VAT Experts Group of the European Commission.

Karl-Heinz is a global VAT/GST practitioner with 28 years of international VAT/GST experience (Tax authorities, Big 4 and 19 years in Industry with GE), actively involved in a wide variety of industry and expert policy groups on an EU and global level - eg, as chair of the Business at OECD (BIAC) VAT/GST work to the OECD.

He joined PwC Inhouse Solutions for Tax (IST) in April 2017, following the strategic partnership between GE and PwC.

Guglielmo Maisto founded Maisto e Associati in 1991. He is a Professor of international and comparative tax law at the Università Cattolica di Piacenza. He is President of the Italian Branch of the International Fiscal Association (IFA), member of the Board of Trustees of the International Bureau of Fiscal Documentation (IBFD) in Amsterdam, member of the Advisory Board of the Master of Advanced Studies in International Taxation of the Lausanne University, member of the Practice Council of New York University (NYU) Law’s International Tax Program and member of the Board of the American Chamber of Commerce in Italy. He represents the Italian Association of Industries (Confindustria) at the OECD Business Industry Advisory Committee in Paris. He acted as a consultant to the Ministry for European Community Affairs and was a member of the EU Joint Transfer Pricing Forum. He is a member of several law societies and of the editorial board of various Italian and foreign tax legal journals. He usually participates as speaker to several annual tax conferences.

Tax advisor, co-founder and partner at MDDP Michalik Dłuska Dziedzic and Partners, leading Polish tax advisory firm. Considered a leading VAT expert in the Polish market by the Chamber's Global, International Tax Review, Rzeczpospolita and others. Author of commentary to the VAT Act (14 editions) as well as numerous publications in Polish and international professional magazines, co-author of the Polish part of " VAT in Europe" published by IBFD. Member of the VAT Expert Group set up by the European Commission. He was also a member of the Expert Group on the functioning of the VAT system set up by the European Commission and of the  Fiscal Committee of the European Confederation of Tax Advisors (CFE). President of the National Chamber of Tax Advisors in the years 2010-2014.

Full Professor of Financial and Tax Law at the Complutense University of Madrid. He is Jean Monnet professor since 2015 for Tax Governance and Fiscal Transparency. He is the author of six books and more than a hundred articles, book chapters and jurisprudential commentaries published in specialized journals. He has been visiting professor at European and Latin American universities, also regularly lecturing in academic and professional forums. He is associate researcher of the Instituto Complutense de Estudios Internacionales (ICEI). Likewise, he was appointed in 2017 member of the Permanent Scientific Committee of the International Fiscal Association. He is a member of the Board of Directors of the Latin American Institute of Tax Law (ILADT) since 2011.

Currently, he is the main researcher of the project entitled: "Taxation and Robotics: the challenges of tax administrations facing the processes of robotization of today's society and the survival of the Welfare State".  Program Oriented R + D + i to the Challenges of the Society, (2018-2020), Ministry of Economy, Industry and Competitiveness.

Robert van der Jagt is an international tax partner in the Amsterdam office of KPMG Meijburg (the Netherlands) and has joined KPMG in 1988. He has specialised in international and European tax law.

Robert is heading KPMG's European Tax Centre in Amsterdam. This centre coordinates all technical and policy developments in the area of EU tax law, such as EU State aid, ATAD, CbCR, digital economy, Mandatory Disclosure Rules and CCCTB. Robert has frequently brought cases to the national and the Court of Justice of the EU. Robert is also chairman of the Committee on Legislative Proposals of the NOB (Dutch Association of Tax Advisors) and a member of the Practice Council of the International Tax Program of New York University.

Maarten van der Weijden specialises in domestic and cross-border corporate tax matters with a particular focus on structuring and restructuring business transactions. Throughout his career, Maarten has advised a wide range of multinational enterprises, in particular US-based multinationals, on how to structure their international business operations. Maarten also has extensive experience in representing clients before tax authorities, including in controversy cases.

Maarten sits on the board of the International Fiscal Association’s Dutch branch and also serves on IFA’s Executive Committee. He is a member of the Dutch Tax Lawyers Association.

Scott Wilkie practices in the area of tax law. He is one of the most high-profile tax practitioners and commentators in Canada, with expertise in international taxation, corporate taxation, taxation
of financial transactions, transfer pricing and tax policy. Scott is a Distinguished Professor of Practice at Osgoode Hall Law School, York University. He is also co-director of the Osgoode Hall Law School Professional LLM in tax law and an Executive Fellow of the School of Public Policy at the University of Calgary. Scott teaches a course in trade and tax policy called WTO and Tax Policy at the Vienna University of Economics and Business, Vienna Austria, in the LLM program in international tax law conducted by the Vienna University of Economics and Business and the Institute for Austrian and International Tax Law, where he is an adjunct faculty member. As one of the most high-profile tax practitioners in Canada, Scott is also involved in a number of committees and organizations. He is ranked as a leading lawyer in all major legal directories and ranking publications.