This study investigates national provisions to combat tax avoidance and tax evasion, plus money laundering laws and their enforcement. It furthermore examines the administrative capabilities of Member States to tackle these challenges. To conclude, the study reviews the specific interventions of Member States in response to the publication of the Panama Papers. The main aim of this analysis is to evaluate whether the legal framework and the institutional arrangements in place are adequate, what are the deficiencies and how they could be addressed.