CG10900 | Effects of residence/domicile: introduction and layout of instructions
From HM Revenue & Customs · Capital Gains Manual
Broadly the legislation aims to charge Capital Gains Tax on gains where there is an appropriate connection between the person realising the gain and the UK. The connection may be one of the following.
The person may be resident or ordinarily resident* in the UK.
Although the person is neither resident nor ordinarily resident in the UK, the person carries on a trade, profession or vocation in the UK through a branch or agency or, in the case of a company, through a permanent establishment.
This general scheme is affected by the domicile or, from 6 April 2017, deemed domicile status of individuals and the effects of double taxation treaties.
*Ordinary residence is not relevant for 2013/14 and later years.
The following paragraphs tell you more about the rules applying for