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Our Research Staff


Andreas Perdelwitz

Andreas Perdelwitz is a Principal Research Associate in IBFD’s European Knowledge Group. Mr Perdelwitz obtained his law degree at the University of Hamburg in 2003 and an LLM in International Business Law in Amsterdam at the Vrije Universiteit in 2004.

Before joining IBFD, he completed the German Bar exam and worked for different law firms in the field of German corporate and individual income taxation.

Laura Ambagtsheer-Pakarinen

Laura Ambagtsheer-Pakarinen is a Senior Research Associate of IBFD’s European Knowledge Group. She obtained her law degree in 2004 and an LLM in International Business and Company Law in 2006 at the University of Helsinki.

Before joining IBFD, she was a partner at a Finnish law firm and worked in the field of Finnish corporate and individual income taxation. Ms Ambagtsheer-Pakarinen is acting as the country specialist for Finland and the other Scandinavian countries (i.e. Denmark including the Faroe Islands and Greenland, Iceland, Norway and Sweden) and is the author of various IBFD publications involving those jurisdictions.

Her activities also include EU law-related tasks. Since joining IBFD in 2009, she has been involved in multiple client requests dealing with both individual and corporate taxation and she is currently managing two ongoing client projects: one on hypothetical income tax computations concerning an expatriate family and the other relating to the taxation of different financial instruments in cross-border situations.

Ridha Hamzaoui

Ridha Hamzaoui is Manager of the IBFD Africa-Middle East Knowledge Group. He is an expert on tax treaties for the United Nations Development Programme in the Middle East region. He has an LLM in International Tax Law from the International Tax Center, Leiden University and a specialized master’s degree in tax law from the Tunisian University.

He also graduated from the National School of Treasury in France where he successfully completed the postgraduate programme for Treasury inspectors. He has lectured for tax officials in Uganda, Algeria, Egypt, Jordan, UAE and Syria. Mr Hamzaoui is also a regular speaker in the Africa/Middle East region on international tax issues and an instructor for the IBFD open and in-house courses. The topics covered include taxation of passive income, international tax aspects of employment income, attribution of profits to PEs and the interaction of anti-avoidance rules with tax treaties.

Before joining IBFD, he worked as a senior tax advisor within the Tax Legislation General Directorate of the Tunisian Ministry of Finance for four years and lectured for tax officials at the Ministry of Finance training institute. He also lectured at the Vrije Universiteit of Amsterdam and the Tunisian University.

Jordi Sol

Jordi Sol is currently the Manager of the VAT Knowledge Group at IBFD and editor of the VAT in Europe publication and the ECJ VAT case law database. He participates regularly in cross-border taxation research projects and client-tailored research in IBFD, and lectures on VAT for IBFD International Tax Training and at the advanced LLM programme in International Tax Law of the University of Amsterdam.

Before joining IBFD in 2014, Mr Sol worked as a tax lawyer at Audihispana Grant Thornton, at JGBR Abogados y Asesores Tributarios (Member of Crowe Horwath International) and at García Hoffmann-Bertran Asesores.

He obtained his degree in Law at the University Autónoma, Barcelona, and his master’s degree in Tax Law at the Center for Financial Studies, also in Barcelona. He is a member of the Spanish Bar and of the Spanish Association of Tax Advisors. Mr Sol speaks on recent trends in VAT at international conferences. He has also taught Indirect Taxation at the University Politécnica of Catalunya and has been a speaker at seminars on VAT at the Spanish Association of Tax Advisors.

Premkumar Baldewsing

Premkumar Baldewsing (AKA Boyke Baldewsing) is a Principal Research Associate at IBFD. He has extensive experience in the (inter)national tax arena, including in senior in-house tax functions with financial institutions and for some years as a lawyer at the Amsterdam Bar.
Mr Baldewsing has also worked as a Dutch and international tax expert for various Big Four and law firms. His experience covers, inter alia, tax advice, tax opinions, chairing technical meetings, coaching junior tax professionals, managing client portfolios, and advising on and negotiating tax rulings.
Mr Baldewsing has been a senior registrar at the Tax Chamber of the Court of Appeal in The Hague for four years, and has also been a co-writer of several tax articles, visiting lecturer at Nyenrode University, and participant of the tax committee of the Dutch Association of Banks. He is currently a member of the Dutch association for tax science, an extraordinary member of the Dutch Association of Tax Advisers, a member of the Dutch association of international tax law and is also involved in a number of community organizations. Mr Baldewsing has a master’s degree in Tax Law from the University of Leiden.

Emma Barrögård

Emma Barrögård is a Senior Research Associate at IBFD Tax Services. She is involved in tailored tax research projects and in the development of tailored and open courses for tax professionals.
Prior to joining IBFD, Ms Barrögård worked as an in-house tax specialist for a US multinational enterprise, initially being responsible for ongoing corporate income tax matters in the Nordic region. She later transferred to the enterprise’s Luxembourg office, where she worked on the planning and implementation of tax projects in the EMEA region.
In addition, Ms Barrögård has several years’ experience as an international tax consultant for a Big Four accounting firm in Sweden and Denmark, and she has served as a lecturer in business and tax law at the Jönköping International Business School in Jönköping, Sweden.
Ms Barrögård holds a master’s degree in law from Jönköping International Business School, with a specialization in tax law.