Joseph Hage Aaronson & Bremen LLP

Boutique tax firm Joseph Hage Aaronson & Bremen LLP is respected in the market for its ability to handle large tax disputes and group litigation in the First-tier Tribunal, Upper Tribunal, High Court, Court of Appeal, UK Supreme Court and CJEU. The team is spearheaded by Graham Aaronson KC, who is relied on by a full spectrum of taxpayers, from industrial corporations and financial service businesses to entrepreneurs and HNWIs; and Michael Anderson, who has established experience in tax litigation at all levels of the UK’s Tax Tribunals, domestic courts and European Court. Iain MacWhannell enjoys a market leading presence in cases involving HMRC’s investigative powers, tax fraud, tax evasion and tax abuse. Daniel Margolin KC is well versed in HMRC litigation, and Helen McGhee has strong credentials in COP9 investigations. Simon Whitehead retired from the firm in January 2025.