Preliminary decision-making procedures in financial law matters in countries that joined in 2004

The aim of this study is to show the proportion of cases in which the courts of the countries that joined the European Union in 2004 (Cyprus, the Czech Republic, Estonia, Poland, Latvia, Lithuania, Hungary, Malta, Slovakia, and Slovenia) have referred financial law issues to the Court of Justice of the European Union for preliminary rulings, and the types of cases in which they have sought guidance. In the introduction, I discuss whether there is such a thing as a European tax, and then I go on to discuss the importance of the case law developed by the Court of Justice of the European Union in the field of financial law. The research method is based on a statistical analysis of search results using keywords specified on the website https://curia.europa.eu.