Jisun Choi advises a wide range of clients, including multinational corporations in various industries, private equity funds and financial institutions, on international and U.K. corporate tax matters, with a particular transactional focus on mergers and acquisitions and group restructurings, as well as associated financings.


Ms. Choi’s practice involves structuring and advising on the tax aspects of:

  • private and public acquisitions and disposals of businesses, including management buyouts, sales of businesses in administration and auction sales
  • international group holding structures, including on joint ventures, the use of the U.K. as a holding company jurisdiction, and investment and asset management structures
  • group reorganisations and restructurings, including de-mergers of businesses and post-acquisition integration planning
  • capital market transactions, including initial and secondary listings of equity and debt instruments, and return of value to shareholders
  • banking and derivative transactions, including bank credit facilities and private placement arrangements

In addition, Ms. Choi has significant experience representing clients from the insurance and reinsurance industries and regularly works on insurance-related corporate transactions.

Ms. Choi is recognised as a Rising Star in The Legal 500 UK and ITR World Tax and is part of the Skadden Tax Group ranked in Band 1 in Chambers Global. She also was selected as one of Law.com International’s Rising Stars in 2024, honoring “the U.K. legal industry’s best up-and-coming women.” Additionally, her work on a cross-border takeover contributed to Skadden previously being named Transatlantic Tax Team of the Year by The American Lawyer and Legal Week at the Transatlantic Legal Awards, as well as Tax Group of the Year two years in a row by Law360 and Best International Tax Team at the 2023 Tolley’s Taxation Awards. 

Notable transactional matters include advising:

  • Liberty Mutual Insurance Company on its US$2.5 billion sale of Liberty Seguros, S.A. (Spain) to Generali Group (Italy)
  • Intact Financial Corporation and its subsidiary Royal & Sun Alliance Insurance Limited on the sale of their retail motor insurance business to Atlanta Group Limited, a member of The Ardonagh Group
  • Northlight Group LLP on the acquisition of Carrick Holdings Limited by one of Northlight’s managed funds
  • EG Group on its US$2.8 billion sale of the majority of its Ireland and U.K. businesses to ASDA Group Limited
  • Light & Wonder, Inc. (formerly Scientific Games Corporation) on the sale of its lottery business to Brookfield Business Partners for US$6.05 billion and the sale of its sports betting business, OpenBet, to Endeavor for US$800 million
  • JAB Holdings on its joint venture with BNP Paribas Cardif subsidiary Pinnacle Pet Group to deliver a range of pet insurance services throughout the U.K., EMEA and Latin America
  • Zuber and Mohsin Issa, owners of EG Group, and TDR Capital LLP on their acquisition of a majority stake in ASDA Group Limited from Walmart Inc. This deal was named an Impact Deal of the Year at the 2021 International Tax Review (ITR) EMEA Tax Awards
  • EG Group on its acquisition of LEON Restaurants Limited and its sale of multiple forecourt sites to Park Garage Group
  • ASDA Group Limited on its acquisition of 132 trading petrol filing sites from The Co-operative Group
  • Willis Towers Watson plc on its divestment of Willis Re — its treaty reinsurance business — to Arthur J. Gallagher & Co. for an upfront cash consideration of US$3.25 billion, in addition to an earnout payable in 2025 of up to US$750 million subject to certain adjustments. This transaction followed the termination of the proposed divestment of Willis Re, as well as certain of its corporate risk and broking services and certain of its health and benefits services, to Arthur J. Gallagher & Co. for US$3.57 billion in connection with the previously proposed combination of Willis Towers Watson plc and Aon plc
  • Acrisure, LLC., a fintech leader that operates a top insurance brokerage, on its acquisition of Volante Global, an international managing general agent
  • Argo Group International Holdings, Ltd on its sale of Lloyd’s Syndicate 1200 to Westfield Speciality
  • Sompo International, a leading global provider of commercial and consumer property and casualty reinsurance, on the sale of its Endurance at Lloyd’s run-off business to RiverStone Holdings Limited
  • Spotify on its acquisition of AI-based voice platform Sonantic
  • Axiata Group Berhad on the US$12 billion merger of Axiata’s and Telenor Asia Pte Ltd.’s respective Malaysian mobile operations, Celcom Axiata Berhad and Digi.com Berhad
  • Bytedance Ltd. on its multibillion-dollar acquisition of Moonton Holdings Limited, a China-based mobile games developer
  • Noble Corporation plc and its subsidiaries on a restructuring of their debt in a Chapter 11 case in the U.S. Bankruptcy Court for the Southern District of Texas
  • Coty, Inc. on its strategic partnership with KKR & Co. Inc., including the carveout sale of 60% of its professional beauty and retail hair businesses to KKR with an enterprise value of US$4.3 billion
  • Pfizer, Inc. on a joint venture combining the company’s and GlaxoSmithKline plc’s consumer health care businesses, with combined sales of approximately US$12.7 billion
  • Westfield Corporation on the de-merger of OneMarket, a retail technology network business, in connection with its acquisition by Unibail-Rodamco SE
  • Phoenix Group Holdings plc on its £2.93 billion acquisition of Standard Life Assurance and associated £950 million rights issue, as well as its proposed sale of Ark Life Assurance Company to Irish Life Group for €230 million
  • Vantiv, Inc. on its US$10.4 billion acquisition of Worldpay Group plc. This deal was named ITR’s 2018 Americas Technology and Telecom Tax Deal of the Year
  • Cardinal Health, Inc. on its US$6.1 billion acquisition of Medtronic plc’s medical supplies businesses
  • Ball Corporation on its US$8.4 billion acquisition of Rexam plc and simultaneous divestiture of US$3.4 billion in assets to Ardagh Group

Ms. Choi is a member of the International Fiscal Association (IFA) and was a U.K. branch reporter at IFA Global Congress 2022, having authored the U.K. branch report on group approach and separate entity approach in domestic and international tax law.

Ms. Choi participates in a number of Skadden’s pro bono projects. She has advised a number of local charities and not-for-profit organisations on their constitution and legal form, and regularly volunteers at a legal advice clinic that assists victims of domestic violence and counsels on other family issues.



  • Legal Practice Course, BPP Law School, 2008
  • B.A., University of Oxford, 2007


  • England & Wales