I bought a house in the UK in 1999 for £95,000, have a buyer who is interested in purchasing in purchasing it now for £200,000. I was resident there until early in 2007 and this property was my principle private residence. I am now resident in Ireland. I believe that there are exemptions for the years I lived in the house and for 12 months after leaving but I am not sure on what figure (in general terms) the 20% CGT rate is calculated. Can anyone advise me? Many thanks