Alison Siniver


  • I have specialised in claims against professionals for 15 years, primarily dealing with those against accountants, IFAs, solicitors, and construction professionals. I have also acted in the past for insurers on product liability claims, and claims against pension trustees liability insurance.  
  • In recent years I have specialised in claims against professionals relating to tax relief and avoidance schemes including group litigation relating to film finance and other collective investment schemes. I am also seeing claims related to disguised remuneration schemes (EBT, EFRBs and contractor loan claims).
  • I have recently advised solicitors on loss of chance claims relating to corporate transactions and ancillary relief proceedings. I advised on a £12 million loss of chance claim against a firm of solicitors arising out of a commercial litigation; the claim was settled at mediation for less than £1 million.  
  • I have also advised a firm on a misuse of private information claim (dealt with in conjunction with an ICO prosecution). 
  • In addition to general claims work, I provide updates on new legislation and government consultations relating to tax avoidance and provide risk management advice to accountants.


  • Interface Europe Limited v Premier Hank Dyers Limited and Airedale [2014] EWHC 2610 (QB)
  • AON Pension Trustees Ltd v MCP Pension Trustees Limited [2010] EWCA Civ 377

Contact Details

+44 121 234 6148


’Alison Siniver is outstanding in claims against accountants and tax advisors. Her knowledge of the actual tax schemes and tax judgments themselves is exceptional, and she is also excellent on the professional liability side as well’.

Legal 500 2022 - Professional Negligence

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