The Rate of Interest
26The First Respondent does not dispute that she should repay the amount she received under the District Court judgment, with interest. The sole issue raised by the First Respondent concerns the rate of interest she should be required to pay. The Appellant had submitted that interest should be paid from 28 September 2009 at the various rates prescribed from time to time under the Civil Procedure Act 2005 and UCPR 36.7 for payment of interest on judgment debts. The First Respondent submits that she should only be required to pay interest at market rates, and that the appropriate measure of those market rates is the cash rate of the Reserve Bank of Australia (" RBA ") from time to time.
27In Heydon (No 2) at [32], Mason P said it was the practice of the Court "to award restitutionary interest at the rates payable on judgments unless special circumstances exist" . At [31] his Honour had explained that this approach is taken, in part, because "[t]here is no reason to assume that the [Schedule J] rates are fixed in disregard of commercial reality or that they embody a deterrent or punitive intent". However in Cai v Zheng (No 2) [2009] NSWCA 317 Basten JA (Giles JA and Hoeben J agreeing) referred to the way that Mason P in Heydon (No 2) had formulated the court's practice concerning payment of interest on orders for restitution following a successful appeal and said, at [32]:
"It is open to the court to deny an appellant interest in appropriate circumstances. There is always a danger in seeking to identify guiding principles, to which a court will usually adhere, by stating a practice subject to an exception arising in "special circumstances". Rather, the question is whether, in all the circumstances of a particular case, it is appropriate to award interest on an order for repayment of an amount of a judgment, paid in part as a condition of a stay."
28There may be room for argument about whether that statement is consistent with Heydon v NRMA (No 2) per Mason P at [30]-[31], where one of the reasons his Honour gave for the court adopting the practice of ordering restitution with interest at the rates appropriate to unsatisfied judgments was the impracticality of the court investigating the financial circumstances of a party every time an application for restitution was made. There may also be room for argument about whether the statement in Cai v Zheng (No 2) is consistent with Antoniadis [No 2] at [5]-[8], where this Court (Handley, Beazley and Stein JJA) rejected an argument that the predecessor of UCPR 51.54 conferred, through the word "may" , a discretionary power to withhold restitution. Rather, Antoniadis [No 2] held it was the sort of provision that conferred a power which must be exercised, if the circumstances were appropriate for its exercise. However, Antoniadis [No 2] still left some room for discretion to affect some aspects of the granting of restitution following reversal of a paid judgment. At [8], the Court said:
"Of course orders for restitution may be moulded on discretionary grounds to provide for matters such as the date for repayment or delivery of possession, and perhaps for a stay of execution on appropriate security being given."
29Their Honours in Antoniadis [No 2] also, at [14], accepted that they would have power to grant a temporary stay pending the hearing of an application for special leave to appeal to the High Court, or to allow the opponent time to raise the funds by sale or mortgage of assets.
30It is not necessary to face any of those potential problems in the present case. The First Respondent accepts that she bears the onus of persuading the court that the rate should differ from the prescribed rate (cf Heydon (No 2) at [36]). She submits that the appropriate interest rate should be significantly lower than the prescribed rate for the following reasons:
"(a) The Court's powers as to ordering interest are discretionary;
(b) The payment of interest above the RBA cash rate would amount to a windfall for the Appellant because it would profit from receiving a higher rate of interest that what it would have received, for example, by holding such sum in a regular bank account;
(c) The First Respondent was in a position only to receive interest at an amount lower than or equal to the RBA cash rate;
(d) The First Respondent would have tax liability in relation to holding the amount after being paid following the District Court proceedings, but if ordered to repay the amount in accordance with the prescribed rate, she would not only suffer a tax liability for money she no longer holds but would also have to pay the difference between the RBA cash rate and the prescribed rate to the Appellant;
(e) The First Respondent is a natural person in stark contrast to the Appellant, which is a major corporate entity.
(f) In Wallersteiner v Moir (No 2) [1975] QB 373 it was held that an award of interest at a lesser rate than court rates is appropriate if there is good cause for so doing in the special circumstances of the particular case. In such circumstances, it is incorrect to adopt a merely conventional rate of interest: see Legal & General Insurance Australia Ltd v Eather (1986) 6 NSWLR 390 at 409.
(g) In Hexia Pty Limited and ors v Lederer and ors (2) [2007] NSWSC 49 at [19] it was noted that the purpose of the prescribed rates being higher than market rates is to provide an incentive to judgment debtors to pay quickly. A purposive interpretation of s 101 in relation to this motion favours the First Respondent in that she is not a judgment debtor who needed encouragement to pay her judgment debt. She received part of her verdict and is now required to repay the damages which had been paid to her as a condition of the grant of a stay pending the appeal.
(h) The compensatory nature of the order as to restitution is such that the First Respondent should only be required to pay interest at market rates."
31I do not accept that those reasons provide a justification from departing from the prescribed rate. The rationale of a court ordering restitution in favour of a successful appellant when a judgment that is reversed on appeal has been paid is explained in Commonwealth v McCormack at 276:
" 'Restitutio in integrum is the right of every successful appellant': per Lord Field in Cox v Hakes (1890) 15 App Cas 506, at p 547. An appellant who has satisfied a judgment for the payment of money is entitled, on the reversal of the judgment, to repayment of the money paid by him with interest: Rodger v The Comptoir D'Escompte de Paris (1871) LR 3 PC 465, Merchant Banking Co v Maud (1874) LR 18 Eq 659. In the former case, Lord Cairns said (1871) LR 3 PC at p 475:
'... one of the first and highest duties of all Courts is to take care that the act of the Court does no injury to any of the Suitors, and when the expression "the act of the Court" is used, it does not mean merely the act of the Primary Court, or of any intermediate Court of appeal, but the act of the Court as a whole, from the lowest Court which entertains jurisdiction over the matter to the highest Court which finally disposes of the case.'
Isaacs and Rich JJ espoused the principle in Heavener v Looms (1924) 34 CLR 306 at pp 323-324. It follows that the Commonwealth is entitled to an order for the repayment of the amount which it paid in satisfaction of the judgment first entered against it in Mr McCormack's action but reversed on appeal to the Full Court of the Federal Court."
32Earlier, in The Commissioner for Railways (New South Wales) v Cavanough (1935) 53 CLR 220 at 225 Rich, Dixon, Evatt and McTiernan JJ had approved a statement in Archbold's Criminal Pleading, Evidence and Practice , 21 st ed (1893), at 226, 227 that:
"... upon the reversal of a judgment against any person convicted of any offence, the judgment, execution and all former proceedings become thereby absolutely null and void. If living, he (or if dead, his heir or personal representative, as the case may be) will be entitled to be restored to all things which he may have lost by such erroneous judgment and proceedings, and shall stand in every respect as if he had never been charged with the offence in respect of which judgment was pronounced against him" (emphasis added)
33In other words, the focus of the granting of restitution to a successful appellant is that an act of the court, namely the granting of a judgment in the court below, has harmed the appellant when it obeyed the court's order and paid that judgment. The restitution that must be made is to the appellant. Interest is awarded because it is only if both the principal, and also interest, are paid to the appellant that the appellant can be put back in the situation in it would have been in, if the lower court had not incorrectly granted judgment against it. As Lord Cairns said in Rodger at 475-476, successful appellants:
"... will by reason of an act of the Court have paid a sum which it is now ascertained was ordered to be paid by mistake and wrongfully. ... injustice will be done to the [appellants], and that the perfect judicial determination which it must be the object of all Courts to arrive at, will not have been arrived at unless the persons who have had their money improperly taken from them have the money restored to them, with interest, during the time that the money has been withheld."
34The House of Lords has arrived at a similar explanation for the basis of the court's power to award restitution following a successful appeal. Lord Nicholls of Birkenhead (with whom all other Lords sitting agreed on this point) said that the power to award restitution with interest "fall[s] squarely within that range of powers which are necessarily implicit if a court of law possessed of appellate functions is to carry out its prescribed functions properly": Nykredit Mortgage Bank plc v Edward Erdman Group Ltd [1997] 1 WLR 1627 at 1637.
35Both the High Court and the House of Lords have explained the basis for restitution following a successful appeal as being that it is a necessary attribute of there being a court system of appeals, in which a possible outcome is that a judgment given below is set aside. That explanation for the basis is completely consistent with the original payment under the judgment being not only not the commission of a wrong on anyone's part, but an act that the law positively required for so long as the judgment was on foot and not subject to a stay. As Ben McFarlane, "The Recovery of Money Paid under Judgments Later Reversed" [2001] Restitution Law Review 1 points out, that basis exists without there being any need to force restitution following a successful appeal into the conceptual straightjacket of being a subcategory of recovery of payments made under duress, or recovery of payments whose basis has failed. (Some writers persist in attempts to impose the straightjacket, eg AJ Papamatheos, "What are the juridical bases of reversal of judgment restitution?" (2004) 25 Australian Bar Review 268, but courts have seen no need to follow.)
36In Heydon (No 2) at [19] and [21] some reference was made to the restitution being to restore both parties to the situation they would have been in if the first instance judgment had not been given. I regret that I cannot see how those remarks are consistent with the statement of principle I have quoted at [31] from McCormack . Further, it will usually be the case that the benefit that a plaintiff successful in the court below will have obtained from payment of a judgment sum will not be equal to the detriment that the defendant in the court below has sustained by making the payment. Thus, it will usually not be possible to restore both of them to the situation they would have been in if the payment had not been made. A need to restore the plaintiff who succeeded in the court below to the situation it had been in did not enter into the result of Heydon (No 2) , because the outcome was that restitution was ordered with interest at the prescribed rates - thus the remarks about the need to restore both parties are dicta. When they are not consistent with a statement of principle by the High Court, my duty is to follow the High Court.