If, apart from this section, the Commonwealth does not have power under this Act to pay an amount (the relevant amount ) purportedly by way of subsidy, then:
(a) the Commonwealth has the power to pay the relevant amount; and
(b) the Commonwealth has the power to pay any amount representing taxes that would, if the payment of the relevant amount was a payment of subsidy under this Act, be payable in respect of the relevant amount; and
(c) for the purposes of paragraph 84(a), the payment of the relevant amount is taken to be a payment of subsidy under this Act; and
(d) for the purposes of paragraph 84(b), any amount paid under paragraph (b) of this section is taken to be a payment of taxes payable in respect of a payment of subsidy under this Act; and
(e) if the relevant amount is not an overpaid amount and was paid into an account maintained by a person in the name of another person (an account holder ):
(i) the relevant amount is a debt due to the Commonwealth; and
(ii) if there is only one account holder for the account--the account holder is liable for the debt; and
(iii) if there is more than one account holder for the account--each account holder is jointly and severally liable for the debt; and
(iv) the relevant amount may be recovered by action in a court of competent jurisdiction.
Note: Division 6 of Part 4 provides for the recovery of overpaid amounts.