Introduction In this essay we are going to explain advantages and disadvantages of the European single market for the European business. To do it we are going to define the European single market, briefly describe its history and explain the most important features. Finally, we are going to explain the advantages and disadvantages of the entity for the European businesses. Moreover, we would like to understand the advantages for the whole European community, taking into account that the entity was created to enhance economic and social development of European Union. In the end, it would be great to propose a few possible easy of development of the entity in the nearest future. This question is really topical nowadays, because of the global financial crisis that has undermined the economic and financial foundations of European community. Main body We would like to start this paper from providing a definition and some background information about the European single market. European single market is one of the steps and, on the other hand, one of the integral elements of single European community. One of the characteristics of this community is a common system of law and interdependence of economies of the countries-members. Single