Is Paying Off Sellers Mortgage Part Of Buying Cost for CGT

Our parents were unable to pay off their endowment mortgage so the house was bought by the siblings for the mortgage value plus costs. Parents are now deceased and house sold so CGT is due. The full house value at the time of purchase has been obtained from an Estate Agent Is the paying of the mortgage included as part of the buying cost (solicitors, stamp duty etc) when completing the CGT return?

Hi,
No the mortgage is not an allowable cost.
Thank you.