Aggressive tax planning efforts of highly profitable multinational companies (Base Erosion and Profit Shifting (BEPS)) have recently become the subject of intense public debate. As a response, several international initiatives and parties have called for more transparency in financial reporting,...

As a result of the confidential sharing of data among tax authorities in different jurisdictions, effective tax rates have risen by between one and two percentage points. This demonstrates that the rules in place are working. By contrast, the publication of sensitive corporate data online makes...

Upon more than 400 judgements on direct taxation, the case law of the European Court of Justice has considerably shaped Member States' tax systems. Based on Member States' tax law adjustments in the context of four landmark rulings on corporate income taxation, we analyse whether case law is a...