This article discusses the possible consequences of new OECD anti-tax evasion and anti-tax avoidance initiatives for the development of EU financial markets. It explores the impact of improved cooperation between anti-corruption authorities and tax authorities, the use of technology in detecting tax fraud and evasion, and the suppression of electronic sales on tax evasion. It also examines the influence of the BEPS Action Plan and the Common Reporting Standard on the exchange of information on tax matters.