Peter Nias

Full Time Mediator & Barrister

Client Feedback:

“…appreciates the individual circumstances and needs of the companies he deals with.”



Peter Nias is a practising tax specialist Barrister at Pump Court Tax Chambers and former partner at the law firm of McDermott Will & Emery UK LLP. Since obtaining CEDR Accreditation in 2010 Peter has been focusing his time advising clients on mediation and pre-mediation strategies for resolving tax disputes and he is one of the founding members of the CEDR Tax Dispute Resolution Panel established in 2012. He collaborated with CEDR to create the Tax Dispute Resolution Hub and website ( and is a member of its Tax Panel of mediators.. Peter is regularly listed in the top rankings of a number of legal profession directories for his expertise in tax disputes.

Professional Background

Co-founder of the London office of McDermott Will & Emery Peter was the head of the Tax Practice and its Tax Dispute Resolution Group for many years. He focused on direct and indirect tax advice on a broad range of corporate and commercial business activities for UK and multinational organisations, including cross-border structuring and regularly advised on transfer pricing and thin capitalisation issues as well as tax risk management and dispute resolution techniques including negotiating rulings, clearances and settlements with the UK tax authorities (HMRC) and tax litigation.

Since joining Pump Court Tax Chambers Peter has been working with HMRC’s Dispute Resolution Unit in developing a collaborative dispute resolution (CDR) programme for complementing their Litigation and Settlement Strategy. Through membership of a number of professional technical committees (the Law Society’s Tax Law Committee and Chartered Institute of Taxation) he has been in regular contact with senior HMRC officials in respect of the consultation process involving new legislation.

Peter is a frequent speaker at tax conferences on a wide range of tax issues, including: transfer pricing, tax disputes and collaborative dispute resolution techniques and regularly contributes articles on these subjects to technical journals.

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