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Sub practice

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. 

News & insights

Building

Publications: 16 May 2022

20 Questions for Qualifying Asset Holding Companies (QAHCs)

Finance Act 2022 has introduced a new regime for qualifying asset holding companies (QAHCs).

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Lab microscope

News: 16 May 2022

Allen & Overy advises the lenders on the acquisition of Haemotronic by GVS

Allen & Overy has advised a pool of lending banks on financing for the acquisition of the Haemotronic Group by GVS S.p.A.

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Hand on keyboard

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…

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Exterior of a modern high rise building

Publications: 02 December 2020

Tax structuring advice not protected by litigation privilege despite enquiry from French tax authority

Litigation privilege did not apply to tax restructuring advice prepared for a company by accountants following enquiries received from the French tax authority. Even where litigation can be said to be…

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