On 21 May 2013, Mendel University, Faculty of Business and Economics (Brno, Czech Republic) together with Vienna University of Economics, Institute for Austrian and International Tax Law (Wien, Austria) organized an exploratory workshop in Brno, as the starting point of the Research Project on the Introduction of the Financial Transaction Tax in the European Union through Enhanced Cooperation. This research project brings together researchers of different nationalities and backgrounds from, among others, University of Amsterdam (Amsterdam, the Netherlands), Catholic University of Piacenza (Piacenza, Italy), Complutense University (Madrid, Spain), IBFD (Amsterdam, the Netherlands), Oxford University Centre for Business Taxation (Oxford, the United Kingdom), Mendel University (Brno, Czech Republic), University of Salerno (Salerno, Italy) and WU Vienna (Vienna, Austria). The structure of the conference was divided into two main parts; the morning session comprising the opening presentation followed by four keynote input statements on critical issues, with discussion sessions in between, and the afternoon session, which was concentrated on five parallel workshops, followed by the concluding remarks.