Tax Litigation and Investigations
In the increasingly complex and international area of tax legislation and practice, Allen & Overy’s global team of experts supports businesses in the full range of high-end cross-border disputes and investigations.
Our advice on all aspects of corporate, commercial, VAT and finance tax is designed to avoid disputes, but we are ideally placed to provide support when, or even after, various issues with revenue authorities arise.
A&O advises a broad range of clients on tax compliance and tax-related disputes and investigations, with particular experience of advising financial institutions. We handle litigation before national and international courts and specialist tax tribunals, including Corporation Tax and VAT disputes, and we liaise with tax authorities and advise on all issues associated with enforcement proceedings.
What sets us apart is our deep experience in handling cross-border transactions, with tax teams in our international offices enjoying strong relationships with local revenue authorities to support the smooth resolution of disputes for the benefit of all parties.
Explore our services
- Aviation and Shipping Litigation
- Bankruptcy and Insolvency Litigation
- Class Actions and Group Litigation
- Employment Litigation
- Financial Services and Securities Litigation
- Fraud and Asset Tracing Litigation
News and insights
News: 24 March 2023
Allen & Overy advises consortium on investing in 960 MW offshore wind farm "He Dreiht"
Allen & Overy has advised a consortium of infrastructure investors consisting of Allianz Capital Partners, AIP Management and Norges Bank Investment Management on the acquisition of a 49.9% stake in…
Publications: 21 March 2023
ESG x Tax in the UK Spring Budget 2023
Across the world, governments are increasingly focusing on using tax measures to address ESG issues. In the UK, whilst it may not have been front and centre of the Chancellor’s speech on Budget Day,…
Publications: 17 March 2023
States have unlimited capacity: Law Debenture v Ukraine
Foreign states formally recognised by the UK government have unlimited capacity, the UK Supreme Court has confirmed, in a significant decision in long running litigation between a trustee for…
Blog Post: 20 September 2021
Common mistakes in eDiscovery and how to avoid them
eDiscovery mistakes made during an investigation can add unnecessary delay, cost and, at worst, impact the quality and nature of evidence available. With the right knowledge and planning, these…
Cross-Border White Collar Crime and Investigations Review
An annual report that analyses the latest developments, and highlights the most significant current and emerging issues that white collar crime and investigations in-house counsel should prioritise in the year ahead.