Joseph Hage Aaronson & Bremen LLP

Founded in 2013, JHA is a dispute-focused law firm recognised for its integrated model that brings together solicitors, barristers, chartered tax advisers, and forensic accountants. The firm operates at the intersection of traditional law practice and chambers, enabling a unified, strategic approach to litigation, arbitration, mediation, and settlement from the outset of each matter.

JHA has established a strong reputation for managing complex tax disputes and investigations, acting for multinational corporations, entrepreneurs, and high-net-worth individuals. It has advised clients in nearly every Group Litigation Order (GLO) challenging UK tax legislation under EU law and has led the largest VAT Group Litigation before the Tax Tribunal. The firm is also experienced in transfer pricing disputes, including cases involving Diverted Profits Tax, and regularly engages with HMRC to resolve matters constructively and efficiently.

Consistently ranked in Tier 1 for Tax Litigation and Investigations by The Legal 500 UK and as the sole top-tier firm for Contentious Tax by Chambers UK, JHA has maintained these accolades annually since its inception. The firm is noted for providing clients with direct access to its legal team, a collaborative approach to strategy, and a high level of discretion in all matters.