Roman Abramovich aides falsified paperwork to disguise assets and dodge tax, according to leaked corporate records. The documents suggest a long-running strategy of backdating to shield the oligarch's offshore empire.
The Russian billionaire's closest aide, London-based Eugene Tenenbaum, appears to have been involved in the backdating and may have given false evidence to the UK high court during a costly lawsuit. The findings are based on the Cyprus Confidential leak, over 500,000 documents released to the International Consortium of Investigative Journalists (ICIJ) and analyzed by the Guardian, the Bureau of Investigative Journalism, and the BBC.
How Abramovich's Aides Allegedly Falsified Documents
According to the leaked records, aides of Roman Abramovich, including staff at the global accountancy firm Deloitte, falsified paperwork mapping his sprawling offshore business empire. This helped his businesses dodge tax and disguise assets. The analysis uncovers what appears to be a carefully orchestrated strategy of backdating documents to mislead authorities.
The digital paper trail charts the reorganization of billions of pounds that the former Chelsea FC owner obtained via controversial acquisitions. The documents raise questions about how Abramovich was able to shield his financial affairs from authorities for more than a decade, with the apparent assistance of apparatchiks and blue-chip advisers.
The Role of Eugene Tenenbaum and Deloitte
Eugene Tenenbaum, Abramovich's closest aide, appears to have been involved in the backdating and may also have given false evidence to the UK high court during a potentially costly lawsuit. The papers indicate that his actions may have obstructed justice and concealed the true nature of Abramovich's assets.

Deloitte, a global accountancy firm, is implicated in the scandal. Staff members allegedly helped falsify documents to disguise assets and dodge tax. This raises serious questions about the ethical practices of major advisory firms and their role in facilitating offshore tax avoidance.
Implications for Offshore Finance and Sanctions
Abramovich's personal and financial affairs are now restricted due to sanctions imposed by the UK and EU in response to Russia's war on Ukraine. However, the documents reveal how he managed to shield his financial affairs for over a decade. The leak highlights the vulnerabilities in the global financial system that allow the ultra-wealthy to hide assets and avoid taxes.
The Cyprus Confidential leak is part of a broader trend of investigative journalism exposing offshore financial misconduct. It underscores the need for greater transparency and stricter regulations to prevent tax evasion and money laundering. The background to this story is set out in £2.5bn Chelsea Sale Fund Could Help Children Globally If Released.

Key Takeaways
- Roman Abramovich aides allegedly falsified paperwork to disguise assets and dodge tax.
- Eugene Tenenbaum and Deloitte staff are implicated in backdating documents.
- The leaks reveal a long-running strategy to shield offshore assets from authorities.
- Sanctions have now restricted Abramovich's financial affairs, but questions remain.
- The case highlights the role of blue-chip advisers in offshore tax avoidance.
Comparison of Offshore Tax Strategies
| Strategy | Description | Risk Level |
|---|---|---|
| Backdating Documents | Altering dates on legal papers to misrepresent transactions. | High |
| Shell Companies | Using anonymous entities in tax havens to hold assets. | Medium |
| Trusts | Placing assets in trusts to obscure ownership. | Medium |
| Transfer Pricing | Manipulating prices in inter-company transactions. | Low |
FAQ
What did Roman Abramovich's aides allegedly do?
They allegedly falsified paperwork to disguise assets and help his businesses dodge tax, including backdating documents.
Who is Eugene Tenenbaum?
Eugene Tenenbaum is Roman Abramovich's closest aide, based in London. He appears to have been involved in backdating documents and may have given false evidence to the UK high court.
What is the Cyprus Confidential leak?
The Cyprus Confidential leak is a set of over 500,000 documents released to the ICIJ, revealing offshore financial activities. It was analyzed by the Guardian, the Bureau of Investigative Journalism, and the BBC.

How did Abramovich shield his assets?
He allegedly used a network of offshore companies and trusts, with the help of advisers who falsified documents, to disguise assets and avoid taxes.