We bought our first house for IR£41000 in October 1993.We bought our second house in March 2005 and remortgaged our first house for €160000.We sold our 1st house for €230000 in June this year,mortgage paid off on this was €153000,Solicitors and Auctioneers fees came to just over €7000.I cannot find out from the Revenue website what we should pay Capital Gains Tax on, it would either be the€230000 minus IR£41000 converted to Euro multiplied by the Indexer of 1.38 and less Fees of just over €7000 or else the €230000 minus the mortgage payment of €153000 and less the fees.Big difference between the two.Any help would be appreciated.