The rationale for capital acquisitions tax, CAT, which was introduced in 1976, is that benefits received by way of gift or inheritance increase a person's resources and should therefore be taxable just as income receipts are taxable. CAT is payable by the beneficiary and all property inherited since 1 April 1975, including residential houses, is potentially liable to tax. The liability of residential houses to inheritance tax depends on:
— the value of the house at the relevant valuation date, normally the date on which the beneficiary receives the inheritance;
—the amount of prior aggregable gifts/inheritances taken by the beneficiary; and
—the relationship between the deceased and the beneficiary.
There are no special reliefs under CAT for residential houses except where elderly brothers or sisters were living together in the same house. In such situations, relief is available if a brother or sister of the deceased inherits a house or part of a house and if the beneficiary is aged 55 or over; has lived in the house with the deceased brother/sister for at least five years prior to the date of death; and owns no other residential property.
If these conditions are satisfied, then the value of the house or part of the house is reduced for inheritance tax purposes by 60 per cent or £60,000 whichever is the lesser figure.