Private residence relief: only or main residence: two or more residences: variation of a notice
A notice given under TCGA92/222 (5) can be varied by a further notice at any time. The further notice can be backdated to be effective from up to two years from the date that it was given.
A variation will often be made when a disposal of a residence is in prospect or the disposal has already been made and the individual making the disposal wishes to secure the final period exemption. See CG64985+.
For example, where an individual with two residences validly nominates house A, they may vary that nomination to house B at any time. The variation can then be varied back to house A within a short space of time. This will enable the individual to obtain the benefit of the final period exemption on house B with a loss of only a small proportion of relief of on house A.