A power of attorney that authorises any dealing in land owned by the donor (including selling land or registering leases) must be deposited with Land Services SA [Real Property Act 1886 (SA) ss 155, 156] before a donee can deal with such property on a donor's behalf. Land Services SA can give advice on how this should be done. There is usually a fee payable when the power of attorney is lodged.

If it is not necessary to deal with land now but it might be in the future, the form can still be deposited immediately so as to ensure that it has been completed properly. This avoids the risk that the form will have to be corrected later. This is a problem if it is an enduring power of attorney and the donor is legally incapacitated when a correction needs to be made. In this case, they cannot correct the power of attorney. Alternatively, the form may be kept in a safe place and deposited when the necessity arises.