BBC alleges Deloitte falsified documents to hide Abramovich wealth

BBC Panorama and the Bureau for Investigative Journalism report Deloitte helped falsify hundreds of backdated documents to conceal Roman Abramovich's wealth and evade tax, involving $10bn. Published 12 October 2026 as 'Documents falsified to evade tax on Abramovich's wealth.' Abramovich denies wrongdoing. The claims, if proven, could test adviser liability and sanctions enforcement.