11 New Square’s highly regarded group of barristers draws leading clients from the UK and internationally, providing both advisory and advocacy services across a range of issues, including R&D allowances, international tax treaties, and unallowable purpose issues. Jonathan Peacock KC is active in high profile matters in the UK and internationally, including Royal Bank of Canada v HMRC, a test case concerning the application of the UK-Canada double tax treaty. Francis Fitzpatrick KC is active for prominent clients in the private equity industry, and has expertise in the taxation of intangible assets. Hui Ling McCarthy KC is highly active as an advocate, with a strong practice acting for both the taxpayer and HMRC. John Brinsmead-Stockham KC, who made silk in 2023, represented the taxpayer in GE Financial Investments v HMRC, a case concerning the UK-US double tax treaty. Edward Hellier has experience appearing unled, including in Collins Construction Limited v HMRC, an appeal on the subject of R&D relief.