HM Revenue & Customs is suing EY over alleged misrepresentations made during the negotiation of a tax settlement relating to Jamie Ritblat.
The lawsuit is linked to a broader dispute between HMRC and the property investor about whether the 2015 settlement of just £400 should block further taxes on £141m of profit paid out after the deal was struck.
HMRC’s action against EY, which negotiated the settlement, is a highly unusual move, according to tax experts.