This book investigates the legal intersection between European Union state aid rules and the regulation of national tax measures to mitigate harmful tax competition. Dimitrios Kyriazis, a legal scholar, provides a rigorous examination of how the European Commission and the European Court of Justice (ECJ) have utilized state aid provisions to challenge specific tax schemes and individual tax rulings. The work establishes a framework for understanding the evolution of EU oversight in fiscal matters from the early 2000s to contemporary enforcement actions.

Legal scholars and practitioners identify this work as a specialized resource for understanding the expansion of EU state aid enforcement in the fiscal domain. Readers frequently note the academic density of the prose and the technical precision required to navigate the complex intersection of competition law and national tax policy.