Hi,
Private Residence Relief is available for capital gains purposes, when your property is your main residence.
When you acquire a second or more properties, you are advised to confirm in writing to us, within 2 years, which is your main residence for capital gains purposes. If this does not happen, we may decide the main residence, based on the fact and evidence of the case. You can see guidance here:
HS283 Private Residence Relief (2024)
You will also find a capital gains tax calculator here:
Work out your gain
Thank you.