Introduction Background Note
16.No capital gains tax (CGT) is due on gains accruing on the disposal of a dwelling-house if the person making the disposal has used it as their only or main residence throughout their period of ownership.
17.Where a dwelling-house was the person’s only or main residence for part of their period of ownership only an appropriate fraction of the gain is not chargeable to CGT. The remaining portion of the gain is chargeable to CGT subject to final period relief (which takes out of charge the last 18 months of ownership); relief for certain types of absences; and lettings relief.
18.Where a person has more than one residence, he may determine for any period which of them is his main residence by making an election.