(1) For the purposes of sections 71 and 71A, if both the payer and the payee of an enforceable maintenance liability or carer liability so intend:
(a) a payment in a form, other than money, by the payer; or
(b) a transfer of any property or right by the payer;
is taken to be an amount paid in complete or partial satisfaction of an amount payable under the liability.
(2) For the purpose of determining the amount to be credited under section 71 or 71A, in relation to the payment or transfer, against the amount payable under the liability of the payer to the Commonwealth, the amount of the payment or transfer is taken to be:
(a) the amount agreed by the payer and the payee; or
(b) if no amount is agreed, the amount determined by the Registrar.