Leslie Allen > Mishcon de Reya LLP > London, England > Lawyer Profile

Mishcon de Reya LLP

Work Department

Tax Litigation & Dispute Resolution


Leslie is a partner in the Dispute Resolution focusing on tax litigation and investigations tax. He has over 30 years experience in the conduct of complex disputes and has been responsible for the conduct of high profile litigation at all levels from the Tax Tribunal through to the Supreme Court and the Court of Justice of the European Union. He has previously worked with HM Customs and Excise Solicitors Office, KPMG and Ernst & Young.

In recent years he has become heavily involved in direct tax disputes ranging from residence to corporation tax disputes. Leslie’s experience includes assisting clients with the increased burden they face in dealing with aggressive tactics employed by the authorities such as dawn raids and investigations.


Partner, Mishcon de Reya LLP; Senior Consultant, DLA Piper UK LLP; Partner, Dorsey & Whitney; Director, Ernst & Young

Lawyer Rankings

London > Dispute resolution > Tax litigation and investigations

(Leading individuals)

Leslie AllenMishcon de Reya LLP

The tax disputes and investigations team at Mishcon de Reya LLP spans both indirect and direct tax with both corporate and private clients. ADR and mediation continues to be a key focus of the teams practice as the practice advises on all aspects of dispute resolution from early stage written representations through to a Tribunal hearing. Team head Leslie Allen is experienced in the conduct of indirect disputes and is supported by Robert Hartley who advises clients across the real estate and leisure sectors. Paul Noble specialises in resolving complex tax disputes while Waqar Shah focuses on employment-based matters.