VGROUPS04100 | Applications for VAT group treatment: who must make the application?
From HM Revenue & Customs · VAT Groups
Section 43B(3)(a) of the VAT Act 1994 states that an application to form a new VAT group, or to vary the composition of an existing group, must be made by either:
one of the persons applying, or
by the person who controls the persons which are applying to be grouped.