This article examines judicial reforms in the new member states of the EU in a comparative perspective. It explores the interactions between domestic and European actors in the Czech Republic, Poland, Hungary, Romania and Bulgaria and explains why the EU has had a differential impact on the way the principle of judicial independence has been implemented nationally. The differential impact of the EU is explained by considering both the nature of EU conditionality and the relationship between the judiciary and the political actors at the domestic level. The comparison reveals that the power of the EU is greater when tensions at the domestic level between judicial and political actors increase. © 2014 © 2014 University of Glasgow.