hi- sold a house in 2008. Had lived there when first bought but moved out after a few yrs. Rented it then . Always declared rent etc. When calculating cgt i apportioned period of ownership between time i lived and time i rented out the house and applied tax on period i was rented. Just got assessment for the full amount and got awful fright- 2 queries;1 Am i right to apportion the 80 mths of ownership and claim exemption on time it was occupied by me / 2. how best to present case to revenue- a letter setting out my pattern of occupation ? full computation ? advice please !