Jolyon has a predominantly litigation based practice in the fields of direct and indirect tax. He has particular expertise litigating cases involving avoidance, employment tax, intangible property and tax and judicial review.
Important recent cases include:
2018: Praeses Elit, Ireland; 30th Anniversary Lecture Essex Law School; Gave evidence before the Culture, Media, Sport Select Committee
2017: Founded Good Law Project, Queen Mary University of London Annual Law and Society Lecture
2016: Lawyer Hot 100; International Tax Review Global Tax 50 Influencers
2015: Advisor to the Labour Party on tax policy
2015: Hardman Lecture
Member Advisory Board of Bright Blue, Intergenerational Foundation.
Jolyon is a graduate of the University of Durham (LLB: European Legal Studies, First Class) and Birkbeck College, London (MA: Modern Literature, Distinction) and is a Queen Mother’s Scholar (Middle Temple).
Jolyon is one of only three practising barristers in the Evening Standard’s list of London’s most influential people, 2018.
A well-known expert on tax avoidance matters with a robust litigation practice. He often represents taxpayers in high-value scheme challenges. He is also knowledgeable about employment taxation and POCA issues. "His advice is always first class and deeply valued by clients. His most striking abilities are demonstrated in court. He is able to think with great speed and precision on his feet." "An excellent litigator. Very eloquent." Instructed for the appellants in NCL Investments v HMRC, a key case on the relationship between corporation tax and accounting practice. - Tax, Chambers UK Bar 2019
‘He is a first-class litigator and an outstanding advocate.’ - Tax (Corporate), Legal 500 2019
A well-known expert on tax avoidance matters with a robust litigation practice. He often represents taxpayers in high-value scheme challenges. He is also knowledgeable about employment taxation and POCA issues. "Supremely confident and a tough negotiator." "Excellent advocate. Very client-friendly, helpful and knowledgeable." Acted for the Icebreaker Members’ Action Group in a case involving more than 50 partnerships and around £300 million of tax. - Tax, Chambers UK 2018
"Very bright and very easy to work with." - Tax (corporate), Legal 500 2017
A well-known expert on tax avoidance matters with a robust litigation practice. He often represents taxpayers in high-value scheme challenges. "An excellent advocate, who's very calm and measured and deals well with judges' questions. He is an extremely good writer who is able to add a lot of colour to his arguments. He's going to be one of the stars of the future." Acted for Eclipse Film Partners in a case against HMRC before the Supreme Court. - Tax, Chambers UK 2017
Jolyon Maugham QC, ranked as a Leading silk in 'Tax: Corporate' is "An exceptional advocate and very quick." - Legal 500 2016
A young silk with a practice centred on litigating cases involving employment tax, avoidance and intangible property amongst others. He is noted for his prominent public profile and the extensive advisory work he undertakes for major bodies. "He takes on board the commercial environment in which we're operating, and his technical analysis is exceptional." Acted for Eclipse Film Partners against the Revenue in a case on sideways loss relief. - Tax, Chambers UK 2016
"Able to master complex facts very quickly and disseminate them in a practical fashion." - Tax: Corporate, Legal 500 2015
"... having “a litigation focused practice which ‘continues to impress’. Clients describe him as ‘very good in court’ and ‘extremely well thought of’. - Who’s Who Legal (Corporate Tax)
His practice is focused on litigation relating to direct and indirect tax. He often acts for clients involved in cases concerning schemes, intangible property, film financing and employment tax. Expertise: "He has a first-class brain and an impressive ability to explain complex tax law in simple terms." Recent work: He represented the taxpayer in the Icebreaker litigation concerning £300 million of unpaid income tax owed by 500 investors, including members of Take That. - Tax, Chambers UK 2015
"a natural advocate with a good eye for an argument"- Tax:Corporate, Legal 500 2014
Enjoys a healthy reputation in the market for the way in which he handles complicated tax disputes. His practice focuses on issues of avoidance, structured finance and employment tax. Expertise: “He is an excellent tax litigator, a good strategist and someone who is very easy to work with.” Recent work: He led the representation of Ice-breaker Members Action Group in a case involving over £300 million of tax losses. – Tax, Chambers UK 2014
"Good strategist and excellent tax litigator" - Tax, Legal 500 2013
A "forceful and persuasive advocate whose practice is going from strength to strength". Jolyon is an expert on employee/employer tax relations and legitimate expectation, amongst other subjects. Recently, he has been involved in legal affairs relating to the Icebreaker tax scheme. - Tax, Chambers UK 2013
"Able to explain complex factual and legal issues in an intelligible and persuasive way" - Tax, Legal 500 2012
International Tax Review included Jolyon Maugham QC as one of the Tax Controversy Leaders for the UK in 2015 and 2014, based on recommendations from tax lawyers as well as directors and CFOs from multinationals.
Jolyon has a predominantly litigation based practice in the fields of direct and indirect tax. He has particular expertise in litigating employment taxation, avoidance, intangible property and tax and judicial review.
Revenue Bar Association
Advisory Board of the Intergenerational Foundation (IF)
Queen Mother's Scholar, Middle Temple
LLB European Legal Studies (Durham and Katholieke Universiteit Leuven), First; MA Birkbeck, Distinction
Jolyon writes a regular blog on tax related matters. To read it click here.