CG44142 | Targeted rules to prevent income to capital converter schemes by companies - conditions for the issue of a notice
From HM Revenue & Customs · Capital Gains Manual
HMRC will only issue a notice in a case under TCGA92/S184H(6) when it is considered that all of the following apply:
A gain arises to a participant in the arrangements,
The gain would, but for this legislation, have been reduced by allowable losses,
As a consequence of the arrangements that gave rise to the gain, a party to those arrangements obtains a deduction in computing profits chargeable to corporation tax, which, absent the arrangements, it would not have been entitled, and,
It was the main purpose, or one of the main purposes, of the arrangements to secure the reduction in those profits.