New South Wales does not require the revocation to be registered for it to take effect between you and your attorney. If the power was registered with NSW Land Registry Services, the register keeps showing a live authority until a revocation is recorded, and a purchaser or mortgagee searching the General Register of Deeds will generally proceed on what they see. Serve written notice on the attorney and keep proof of delivery, because s 47 turns on what the attorney knew. The Civil and Administrative Tribunal and the Supreme Court can both review an enduring power, and an attorney whose appointment has been purportedly revoked has standing to apply.
Victoria is the most prescriptive jurisdiction. Under ss 44 to 49 of the Powers of Attorney Act 2014 (Vic), revocation of an enduring power must use the prescribed instrument and be witnessed by two adults who sign in the presence of the principal and each other. At least one witness must be authorised to witness affidavits or be a registered medical practitioner, and both complete the certification. Section 50 then deals with notifying the attorney. Remote witnessing by audio visual link is available, provided everyone is physically in Victoria.
Queensland requires the revocation to be made in the approved form, and s 47 of the Powers of Attorney Act 1998 (Qld) sets the capacity threshold. If the enduring power was registered with the Titles Registry, the principal must also deregister it by lodging the revocation. Informing the attorneys is a statutory duty in Queensland, not a courtesy, so the notice in our pack is essential there. The Act also treats marriage, divorce and the end of a civil partnership as revocation events in defined circumstances.
Western Australia takes a different route. Part 9 of the Guardianship and Administration Act 1990 (WA) says little about revocation by the donor, so the common law fills the gap and a donor with capacity can revoke at any time. The Office of the Public Advocate still recommends written notice to the attorney and every relevant organisation. Where the power was lodged with Landgate, the revocation must be in writing and registered under s 143 of the Transfer of Land Act 1893.