CG25311 | Becoming domiciled
From HM Revenue & Customs · Capital Gains Manual
An individual who is resident or ordinarily resident* but who has not been domiciled in the UK may change his or her domicile status and become domiciled in the UK from some date. If that individual
* realised gains on foreign assets in the period when he or she was resident or ordinarily resident* but not domiciled
and
* remits those gains after becoming domiciled
he or she should be assessed on the gains remitted in accordance with TCGA92/S12. The fact that he or she has become domiciled does not prevent assessment of the gains on the remittance basis.
The ordinarily resident test only applies for the years up to and including 2012/13.