The definition of a connected person for tax purposes can be complex and varies depending on the circumstances at hand. A statutory definition of “connected persons” for Capital Gains Tax purposes is set out in Section 286 of the Taxation of Chargeable Gains Act (TCGA) 1992. The legislation states:

" A person is connected with an individual if that person is the individual’s spouse or civil partner, or is a relative, or the spouse or civil partner of a relative of the individual or of the individual’s spouse or civil partner"

In this context, ‘relative’ means brother, sister, ancestor or linear descendant and spouses or civil partners of relatives. The term 'relative' does not cover all family relationships. In particular it does not include nephews, nieces, uncles and aunts.

HMRC’s internal manual also states that: excluded are the widows or widowers or surviving civil partners of deceased persons, or relatives of a deceased spouse or of a deceased civil partner unless connection can be established by a route not involving the deceased. A dissolution of a civil partnership or a divorce can similarly lead to persons in addition to the former civil partner or spouse ceasing to be connected with the individual.