The simplest way to thin out a foreign-owned UK business is to
insert a new UK holding company.
Take the straightforward case of a US-owned UK business which
has no debt whatsoever. Suppose its funding requirements are
satisfied by ordinary share capital of £50m and retained
profits of £50m.

In this example, nothing has changed in commercial terms as far as the group’s operations or activities are concerned. However, interest on the debt of the UK holding company might now be claimed to be deductible for corporation tax purposes with the loss in the holding company being surrendered by group relief against the profits of the UK operating subsidiary.
