Old Square Tax Chambers‘ private client group covers both advisory and contentious mandates, with notable strength in international matters. Head of chambers James Kessler KC is a leading name on offshore tax matters, and has expertise in trusts and wills. Rory Mullan KC specialises in domicile and residence issues, as well as offshore structures, an area of focus shared by Robert Venables KC. Harriet Brown provides support in contentious and non-contentious private client matters, with a client base of UK and international individuals and families.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • 'Cliff Holland and his team are the best in the business. Clients and instructing accountants/lawyers are always very well looked after and the quality of service is 100%.'
  • 'The clerks were very responsive and easy to deal with.'
  • 'They have some really strong KCs.'
  • 'The senior clerks are always efficient and responsive.'
  • 'Of course one of the leading chambers in tax - great strength in depth and reputation - at the top of their game with individuals who are leading in the field at all levels.'
  • 'They have excellent strength in depth, and the junior tenants are all very talented.'
  • 'Superb tax set. One of the very best.'
  • 'The clerks are responsive, professional, and understand what is important to clients, delivering accordingly.'

Silks

Leading Silks
KCs at the very top of their field, with a long-established record of market-defining cases, and widespread endorsement from clients and peers. All silks appointed in the last two rounds are listed further below.
James Kessler KC
1
James Kessler KC
Old Square Tax Chambers
'A forensic approach leaving no stone unturned. You feel you're in very safe hands with James, and that he will have reviewed absolutely everything and thought about it.’
Rory Mullan KC
2
Rory Mullan KC
Old Square Tax Chambers
‘Rory gives balanced, well-thought through, insightful advice. He puts the client first and his advice has a strong commercial dimension.’

Juniors

Leading Juniors
Leading juniors are those with significant experience of key cases, strong market recognition from both peers and clients, and are seen as future candidates for silk.
Harriet Brown
2
Harriet Brown
Old Square Tax Chambers
'Harriet combines very strong technical abilities with astute commercial and practical understanding. She is very approachable and easy to communicate with.'