Thursday, October 15, 2026 -A major international investigation has raised serious questions about how financial advisers allegedly helped Russian billionaire Roman Abramovich conceal billions of dollars in assets through offshore companies. 

Documents obtained in the Cyprus Confidential leak reportedly show that Deloitte’s Cyprus branch and its former spin-off, MeritServus, were involved in falsifying and backdating more than 1,000 corporate documents between 1999 and 2013. 

The investigation, published in October 2026 by the Bureau of Investigative Journalism and BBC Panorama, alleges that the paperwork helped obscure ownership of assets worth at least $10 billion and reduce tax liabilities.

According to investigators, advisers allegedly altered financial records to make it appear that billions of dollars had been transferred to companies in the British Virgin Islands years before the transfers were actually documented. In one case, a Cypriot company holding approximately $2 billion was reportedly presented as managing the money on behalf of another offshore entity, potentially reducing its tax exposure. 

Other documents allegedly made a company connected to Abramovich’s financial network appear to hold just $145,000, despite previously being associated with assets worth billions. Experts who reviewed the findings questioned the legality of the arrangements, although the allegations have not established that Abramovich personally directed the document falsification.

The revelations have intensified scrutiny of offshore financial structures and the role of major accounting firms in monitoring wealthy clients’ assets. Abramovich’s lawyers have denied that he knowingly participated in unlawful backdating, concealed assets or evaded taxes, arguing that companies linked to him relied on advice from professional advisers. 

Deloitte Cyprus has stated that it complies with applicable laws, while the investigation has prompted renewed questions about transparency, corporate accountability and tax enforcement. As authorities and financial experts examine the findings, the case highlights the urgent need for stronger oversight of complex international financial arrangements.