Iain MacWhannell > Joseph Hage Aaronson LLP > London, England > Lawyer Profile
Joseph Hage Aaronson LLP Offices
280 HIGH HOLBORN
LONDON
WC1V 7EE
England
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Iain MacWhannell
Work Department
Contentious Tax, Commercial & Chancery Litigation, Investigations.
Position
Iain was called to the Bar in 2006 and his practice focuses on contentious tax, allegations of fraud/avoidance/abuse, and investigations. He has litigated several of the leading cases on HMRC investigative powers, VAT fraud, and the Knowledge/Means of Knowledge tests.
Iain manages a wide variety of work for an international client base, ranging from UHNWIs to PLCs and owner-managed businesses to trusts and funds. He is often sought out by other legal and professional advisors for a second opinion and to help ‘unlock’ long-running or complex disputes.
Career
Before pupillage, Iain worked for HMRC Solicitor’s Office in both Excise litigation and VAT litigation. He has acted as counsel both for and against HMRC in a variety of disputes in the Tax Tribunal, Upper Tax Tribunal, High Court (Admin, ChD and Comm), Court of Appeal (Civil), House of Lords and UK Supreme Court. He became a partner at JHA in 2021 and prior to that had been a tenant at a leading set of Chambers and a Dispute Resolution Partner at a City law firm.
Memberships
Bar of England & Wales.
Lawyer Rankings
London > Dispute resolution > Tax litigation and investigations
(Leading partners)Joseph Hage Aaronson LLP, a respected tax boutique, offers ‘incomparable experience of litigating major tax cases’, with a strong track record appearing before the First-Tier Tribunal, Upper Tribunal, High Court, Court of Appeal, and the UK Supreme Court, as well as the CJEU. In addition to its aptitude for litigation, the firm handles arbitration and investigations, representing a diverse range of domestic and international clients in the full spectrum of contentious tax. Graham Aaronson KC
, who ‘needs little introduction’, co-leads alongside fellow founding partner Michael Anderson, whose practice covers both civil and criminal tax disputes. Simon Whitehead specialises in direct tax, while Iain MacWhannell is noted for his strength in VAT, in addition to a strong fraud/avoidance/abuse tax practice. Also key are Daniel Margolin KC, who has experience appearing before the Supreme Court, and Helen McGhee, noted for her aptitude in international tax disputes.
Lawyer Rankings
- Leading partners London > Dispute resolution > Tax litigation and investigations
- Tax litigation and investigations London > Dispute resolution
Top Tier Firm Rankings
- Dispute resolution > Commercial litigation: mid-market
- Dispute resolution > Tax litigation and investigations