In November 2014, the International Consortium of Investigative Journalists published 28,000 pages reviewed by 80 journalists, revealing 548 confidential tax rulings arranged by PricewaterhouseCoopers between 2002 and 2010 for more than 340 multinational companies. The schemes used transfer pricing, intragroup loans and Luxembourg entities—sometimes with little more than a registered address—to shift profits from higher-tax countries into a regime where they faced very low effective taxation. No multinational company was charged, and the rulings were generally legal under Luxembourg law, but their secrecy and preferential treatment raised serious questions about tax fairness and competition.
The disclosures intensified scrutiny of Luxembourg’s former prime minister Jean-Claude Juncker, who had become European Commission president days before the revelations, and prompted European Parliament investigations and European Commission action. The Commission introduced automatic exchange of tax-ruling information from 1 January 2017, while EU member states adopted Anti-Tax Avoidance Directive measures in 2016 and 2017. The Commission estimated that EU countries lose €50–70 billion annually to corporate tax avoidance; related state-aid cases found Luxembourg’s Fiat arrangement and the Netherlands’ Starbucks deal illegal in October 2015, while a McDonald’s investigation involving more than €1 billion in potential tax losses ended without a finding against Luxembourg in 2018. Whistleblowers Antoine Deltour and Raphaël Halet were convicted in 2016, though Luxembourg’s higher court fully recognized Deltour’s whistleblower status in January 2018; the case helped drive an EU whistleblower-protection directive adopted in 2019.
