A power given by an individual (the donor) to another individual (the donee) to appoint property in favour of whomever the donee wishes, including the donee himself.

The power should be capable of being exercised by deed or by will.

As the donee of a general power of appointment is free to appoint the property to himself if he wishes, the donee is treated as being the beneficial owner of the property for inheritance tax purposes.

In contrast, see special power of appointment.