The operation of the power of attorney may be terminated in a variety of ways as mentioned below.
(a) If the instruments is expressed to be operative only for fixed period termination by effluxion of time.
(b) If the instrument is given for the express purpose of carrying out specified transaction, termination by completion of such transactions.
(c) Revocation by express and formal act on the part of the donor.
(d) Where such a change occurs as to the principal that he can no longer act for himself the agent whom he has appointed can no longer act for him including revocation by the death, lunacy or insolvency of the donor.
(e) Implied revocation.
(f) Death of one of the parties to a join power.
(g) Renunciation by, or disability of the attorney.
Some of the above kinds of termination are subject to the protection granted by section 3 of Power of Attorney Act 1882.