Appeal: consideration
50Damages for past and future economic loss are allowed to an injured plaintiff "because the diminution of his earning capacity is or may be productive of financial loss": Graham v Baker [1961] HCA 48; (1961) 106 CLR 340 (at 347) per Dixon CJ, Kitto and Taylor JJ; see also Medlin v State Government Insurance Commission [1995] HCA 5; (1995) 182 CLR 1 (at 3) per Deane, Dawson, Toohey and Gaudron JJ; (at 16) per McHugh J.
51An injured plaintiff's economic loss is conveniently assessed "by reference to the actual loss of wages which occurs up to the time of trial and which can be more or less precisely ascertained and then, having regard to the plaintiff's proved condition at the time of trial, to attempt some assessment of his future loss": Graham v Baker (at 346 - 347) per Dixon CJ, Kitto and Taylor JJ.
52However, as Gleeson CJ, Gummow, Kirby and Hayne JJ said in Husher v Husher [1999] HCA 47; (1999) 197 CLR 138 (at [7]) after quoting the passage from Graham v Baker to which I have referred (footnotes omitted):
"But damages for both past loss and future loss are allowed to an injured plaintiff 'because the diminution of his earning capacity is or may be productive of financial loss'. Both elements are important. It is necessary to identify both what capacity has been lost and what economic consequences will probably flow from that loss. Only then will it be possible to assess what sum will put the plaintiff in the same position as he or she would have been in if injury had not been sustained." (Emphasis added)
53Furthermore, as Heydon JA (Mason P and Handley JA agreeing) said in State of New South Wales v Moss [2000] NSWCA 133; (2000) 54 NSWLR 536 (at [71]):
"[S]trictly the issue does not turn on a comparison between what money the plaintiff would have earned apart from the injury and what money the plaintiff will earn after the injury. The compensable loss is not a loss of income but the loss of capacity to earn income in a manner productive of financial loss ... The income earned before the injury is relevant, but only as an evidentiary aid in assessing damages for the loss of capacity to earn income ... Evaluation of the worth of a loss of capacity to earn - of a lost chance to earn - is of its nature a more imprecise inquiry than calculation of a lost income. It rests on the hypothesis - that the plaintiff will have undiminished capacity - which has been rendered false by events. It does not depend on calculating the income from a particular career which is no longer possible, but in calculating the damage to a capacity to carry on various careers. It is an exercise in estimation of possibilities, not proof of probabilities." (Emphasis added)
54It is incumbent upon the plaintiff to prove the loss for which compensation is claimed (Todorovic v Waller [1981] HCA 72; (1981) 150 CLR 402 (at 412) per Gibbs CJ and Wilson J) and the quantification in money that should be adopted in the sum awarded: Watts v Rake [1960] HCA 58; (1960) 108 CLR 158 per Dixon CJ (at 159). Accordingly, the plaintiff must prove the extent of his or her pre-accident earning capacity, the extent to which that capacity would have been productive of income had the accident not happened, and the extent to which the compensable injuries have diminished his or her ability to exercise the pre-accident earning capacity: Giorginis v Kastrati (1988) 49 SASR 371 (at 374) per von Doussa J (King CJ and Legoe J agreeing).
55If a plaintiff does not adduce records of pre-accident earnings, leaving the evidence in a state of uncertainty, it "does not necessarily follow, as a matter of law or fact, that proof of the plaintiff's claim for lost earning capacity will fail [as] [t]he evidence may nevertheless establish, on the balance of probabilities, the likelihood of some substantial element of loss, and the court will take that into account in assessing general damages ... However, the assessment is likely to be a modest one having regard to the uncertainties unnecessarily left open by the evidence. The plaintiff will usually not be heard to complain on appeal that the loss may have been greater": Giorginis v Kastrati (at 375). Thus, because "the information concerning economic loss and documents relevant to it are within the knowledge and possession of the plaintiff ... the lack of clarity on such matters is primarily the responsibility of the plaintiff": AMP General Insurance Ltd v Kull [2005] NSWCA 442; (2005) 44 MVR 339 (at [75]) per Hodgson JA (with whom Santow JA agreed).
56Conceptually, there is no distinction in principle between the calculation of past and future economic loss (better expressed as past and future lost earning capacity), although in practice the former tends to be included among special damages: Luntz, Assessment of Damages for Personal Injury and Death, 4th ed (2002) LexisNexis Butterworth (at [5.2.2]). This is because, as Fullagar J explained in Paff v Speed [1961] HCA 14; (1961) 105 CLR 549 (at 558 - 559), past economic loss "is [usually] capable of precise arithmetical calculation or at least of being estimated with a close approximation to accuracy". His Honour gave two illustrations of this, "the plaintiff employed at a fixed wage or salary [whose] loss of income can commonly be calculated with exactness" and the "plaintiff [who] has not been employed, [whose] monetary loss can be estimated without difficulty by reference to his past earnings."
57There is the added complication in this case that the appellant invites the Court to conclude that he gave evidence that his tax returns did not disclose the full extent of his earnings and that his damages for past economic loss should have reflected a component referable to his non-disclosed income. It is apparent that the primary judge would have allowed such damages had he been satisfied that the appellant had established how frequently he was earning $180 per day, the earning capacity the primary judge was satisfied the appellant had at the time of the accident.
58Although as the following discussion makes apparent, it is open to the Court to consider a claim for damages for lost earning capacity on the basis that a plaintiff's pre-accident income was greater than that disclosed in his or her income tax returns, there is a question as to whether, before a claim can be considered on that basis, the plaintiff has to give express evidence that his or her income tax returns do not disclose the full extent of his or her earnings.
59This question needs to be addressed because I do not read the appellant's evidence as constituting a clear admission that he had not disclosed all his income in his tax returns, although I accept that, on one view, such a conclusion is implicit in his argument at trial and on appeal that the quantification of lost earning capacity should be undertaken on the basis that it exceeded the income revealed by his tax returns.
60In Matar v Jones [2011] NSWCA 304, Macfarlan JA (with whom Beazley and Giles JJA agreed) said of a case where the plaintiff gave evidence, and objective evidence confirmed, that his tax returns did not disclose all his income:
"[16] This is to the appellant's discredit but does not preclude him from recovering damages upon what he truly earned, as distinct from what he disclosed. The following observations made by von Doussa J in Giorginis v Kastrati ... and approved by this court in AMP General Insurance Ltd v Kull ... are in point:
'... Where the plaintiff gives evidence that his income tax returns do not disclose the full extent of his earnings, a court will scrutinise the plaintiff's evidence with special care. The want of honest compliance with the taxation laws is a matter that will reflect adversely on the plaintiffs (sic) credit and may lead to the rejection of his evidence as untrustworthy, at least about his earnings. In such a case the plaintiff has only himself to blame if damages are assessed in line with the pre-accident income actually disclosed to the revenue authority. However, where the fact of the receipt of other income is proved, then, in my view, the plaintiff is entitled to have that exercise of his earning capacity brought to account, although subject to reduction for the income tax which should have been paid, and subject to the question whether the plaintiff would have continued to exercise that capacity had he been required to pay tax on the additional income: see McIntosh v Williams [1976] 2 NSWLR 237 at 244, 252. Melino v Ken Eustice Motors (North Road) Pty Ltd (1984) 111 LSJS 296 at 308-310 is an example of a case where undisclosed income was proved and brought to account'." (Emphasis added)
61In Giorginis v Kastrati (at 376), following the passage Macfarlan JA quoted in Matar v Jones, von Doussa J said:
"A court should not, generally speaking, make a finding favourable to the plaintiff in a personal injury case that his income is otherwise than he has disclosed to the revenue authority unless the plaintiff admits the non-disclosure. A fortiori, such a finding should not be made where the plaintiff denies that he has failed to properly disclose his income. Unless the plaintiff admits the falsity of his income tax returns the court should not speculate in his favour, for example that his pre-accident earnings were probably higher than he has disclosed. Rather, the court should adopt the income figures actually disclosed and base the assessment of damages on them. Again, if this results in a low assessment, that is the consequence of the plaintiff adhering to the accuracy of his income tax returns."
62In AMP General Insurance Ltd v Kull (at [75]), Hodgson JA set out the evidence about economic loss (as to which the appellant complained the primary judge's award was excessive) as follows:
"[40] In relation to economic loss, Mr Kull gave no evidence in chief as to his pre-accident earnings. In cross-examination, he agreed that his taxable income, as shown in his tax returns for the years ended June 1998 and 1999, was $4000: however, these tax returns were not put into evidence. Evidence was given in Mr Kull's case by two witnesses concerning amounts paid to Mr Kull for maintaining motor vehicles: a Dr Mayman estimated that he paid Mr Kull between $10,000 and $12,000 per year in the five years preceding the accident to service and repair large farm vehicles, such work costing him since the accident up to $20,000 per year; and a Mr McMurray, a haulage contractor, estimated that in the five years preceding the accident he paid Mr Kull an average of $20,000 per year. The primary judge estimated Mr Kull's pre-accident earning capacity as: declared income $8000; casual repairs (gross) $35,000; sub-total $43,000; less expenses, tax and penalties $25,000; giving $18,000 or about $320 net per week. He assessed Mr Kull's past economic loss for 250 weeks at $320 per week, giving $80,000."
63The appellant complained of a number of mathematical errors in the primary judge's calculation of economic loss. Significantly for present purposes, however, the appellant contended that the plaintiff "had said in evidence that the $4000 shown in his tax return was correct" and that there was no evidence as to the net amount of the plaintiff's cash income: AMP General Insurance Ltd v Kull (at [69]). There was also a complaint that the primary judge had allowed an amount greater than that for which the plaintiff had contended at trial: AMP General Insurance Ltd v Kull (at [71]).
64The plaintiff argued that the primary judge had not erred and that his evidence concerning his income tax returns had to be understood with his evidence that he was paid for much of his work in cash: AMP General Insurance Ltd v Kull (at [72]).
65Hodgson JA set out (at [70]) the passages from Giorginis v Kastrati I have reproduced (at [57] - [61] above) which he observed were "emphatically endorsed by King CJ and Legoe J". He also referred (at [72]) to Trajkovski v Ken's Painting & Decorating Services Pty Ltd [2002] NSWSC 568 where Dunford J said:
"[51] Giorginis v Kastrati was referred to with approval by the Court of Appeal in Brear v James Hardie & Coy Pty Ltd [2000] NSWCA 352, 50 NSWLR 388 at [52] but only to the extent that the trial judge was entitled to take into account the fact that the appellant had called no evidence about matters (relating to past income) upon which it might have been expected that he or witnesses called by him might cast light.
[52] In these circumstances, where I consider it likely that the plaintiff had some income beyond that disclosed in his taxation returns, although he has not directly admitted submitting false returns, I assess the plaintiff's loss of income by reference to what has been disclosed together with something for the additional income discounted for the tax that should have been paid on it; but because of the paucity of the evidence, the assessment must be conservative and not over generous. As there has been no direct admission of the lodging of the false taxation returns no question arises about referring the matter to the relevant authorities. I reject the submission that in a case such as this it is appropriate to take Average Weekly Earnings or any similar table as a guide." (Emphasis added)
66Hodgson JA accepted (at [74]) the appellant's complaints of error. In so doing he agreed "with what was said in Giorginis v Kastrati". Relevantly, his Honour did not accept that "the matters referred to by [the plaintiff] could realistically indicate that [he] declared a net income substantially in excess of $4,000, which was reduced to that figure by deductions of the kind referred to." His Honour did not discuss the different views expressed in Giorginis v Kastrati and Trajkovski v Ken's Painting & Decorating Services Pty Ltd concerning whether non-declared income could be taken into account in assessing economic loss where the plaintiff had not admitted submitting false returns. He set aside the award for economic loss and, because "[p]recision [was] not possible" allowed an amount for past economic loss which represented approximately the average of the plaintiff's weekly income as disclosed in his tax returns and a buffer for future economic loss: AMP General Insurance Ltd v Kull (at [76]).
67Giles JA, while agreeing (AMP General Insurance Ltd v Kull at [1]) with Hodgson JA's reasons that the verdict for the plaintiff should stand but with the reduced damages, qualified his agreement in this respect, saying:
"... I do not think it necessary, if Giorginis v Kastrati (1988) 48 SASR 371 so suggests, that a plaintiff admit tax evasion before earnings greater than those disclosed to tax authorities can be taken into account in assessing his damages. The Court must decide on the evidence before it. The evidence may warrant, indeed require, the conclusion that the plaintiff's earnings exceeded his declared income even if the plaintiff has not admitted non-disclosure of income. ..."
68In a different context, with some analogical similarity to the present case, it has been held that the tax treatment of a plaintiff's earnings is not decisive. Accordingly where in a corporate structure, it was found that a "decision to apportion salary income [as set out in the company's tax returns] almost equally between husband and wife was done as an income-splitting exercise, for tax purposes" and the plaintiff's tax returns disclosed only that income derived as a result of the tax-splitting, Mason P (Powell and Beazley JJA agreeing) held that the "tax treatment is not conclusive": Conley v Minehan [1999] NSWCA 432 (at [40]).
69In so finding, Mason P rejected a submission based on Giorginis v Kastrati that the income tax returns should have been taken at face value: Conley v Minehan (at [38]). His Honour held, in effect, that that submission was inconsistent with Husher v Husher, the facts of which he described as follows:
"[41] ... Husher ... involved a 50/50 partnership at will between a husband and wife. The husband (who was the injured plaintiff) generated the partnership income through his skill and labour. The wife's limited contribution to the business was to perform minor bookkeeping and message-taking tasks. The income was split, obviously for tax-saving purposes. It was recognised that the arrangement would very probably have been maintained indefinitely. The tax arrangements between the plaintiff and his wife meant that the plaintiff did not derive the whole of the partnership income. Nevertheless, his capacity to terminate the partnership at will, and to bring to an end, or vary, the arrangements made with his wife concerning the manner in which income generated by his activities was derived, resulted in an effective control which was of critical significance in measuring his earning capacity and his financial loss."
70Mason P applied (at [40]) what he described as "the basal principle that damages for both past loss and future loss are allowed to an injured plaintiff 'because the diminution of his earning capacity is or may be productive of financial loss'" as set out in Husher v Husher (at [18] per Gleeson CJ, Gummow, Kirby and Hayne JJ) as follows:
"The financial loss occasioned by impairment of earning capacity is the loss of what (if there had been no accident) the injured plaintiff would (as opposed to could) have expected to have had under his or her control and at his or her disposal by exercising that capacity. We refer to 'control' and 'disposal' because what the plaintiff has lost are the financial rewards from work that are rewards the plaintiff would have been able to direct to whatever purpose or destination he or she chose."
71Mason P also referred to the plurality's emphasis in Husher v Husher (at [23]) that the facts of each case require close attention and their Honours' statement that:
"The task is not one to be undertaken by seeking to classify cases as concerning 'sole traders' or 'partnerships' or 'wage-earners' or 'trading trusts', and then attempting to deduce some rule of general application to all cases falling with the classification thus devised. Rather, the enquiry is about what could the plaintiff have done in the workforce but for the accident and what sum of money would the plaintiff have had at his or her disposal." (Emphasis added)
72Some other aspects of Husher v Husher should be mentioned. First, it is apparent that the partnership accounts showed the appellant and his wife as sharing the profits equally: see 197 CLR 138. Secondly, the propositions the plurality identified as the "basic principles" related to claims for both past and future economic loss: Husher v Husher (at [7]). While the focus of the plurality's reasons was on the assessment of damages for loss of future economic capacity, it cannot be doubted, in my view, that they apply equally to the determination of past loss of earning capacity and its quantification. Thirdly, the plurality returned to the basic principles (at [17]) which they said:
"... require identification of what earning capacity has been impaired or lost and what financial loss is occasioned by that impairment or loss. In the present case there is no doubt that the capacity that the appellant lost was a capacity to earn whatever he could have earned working as a block layer. But the inquiry does not stop at what the appellant could have earned. It is necessary to ask what loss the appellant suffered because of the diminution of that capacity and that invites attention to what would have happened but for the negligent infliction of injury (as best a court can predict that future course of events). The latter question (what would have happened but for the negligent infliction of harm) was said to be answered, in this case, by identifying that it was highly probable that the partnership at will would have been maintained but for the occurrence of the accident. But it is necessary to consider the content and consequences of that conclusion with some care." (Emphasis in original)
73Fourthly, although the question did not fall for decision in that case, the plurality discussed (at [24]ff) whether account should be taken of the taxation consequences of income-splitting arrangements like those the appellant had made. Their Honours considered Spargo v Haden Engineering [1993] SASC 3793; (1993) 60 SASR 39 in which the Full Court of the Supreme Court of South Australia (Perry J, Legoe and Duggan JJ agreeing) held that the damages to be allowed to a plaintiff for loss of future earning capacity should be calculated by reference to the whole of the income he had generated, even though all his income had been received by the trustee company of a discretionary family trust which distributed it to the plaintiff and members of his family. Perry J also held (at 54) that if the plaintiff was "to be given the benefit of aggregating the distributed income for the purposes of measuring his earning capacity, the allowance for income tax in determining the net earnings should approximate the amount which he might have paid on the gross earnings if they had been brought to account by him rather than by the family trust." The plurality accepted (Husher v Husher at [26]) that "an adjustment of the kind proposed by Perry J was not inappropriate in that case".
74Finally, in applying the principles to the facts in Husher v Husher, the plurality concluded (at [20]) that "[w]hat the appellant would have had under his control and at his disposal but for the accident was, therefore, the whole of the fruits of his skill and labour", even though (at [21]), "[t]he tax arrangements between the appellant and his wife therefore meant that the appellant did not derive the whole of the partnership income."
75It will be recalled that in Giorginis v Kastrati, von Doussa J said, in substance (at 376), that "generally speaking" a plaintiff should admit the falsity of his or her income tax returns before a court should make a finding favourable to the plaintiff that his or her income was otherwise than as disclosed to the revenue authority. It was no doubt that qualification which led Giles JA to query in AMP General Insurance Ltd v Kull (at [1]) whether von Doussa J had mandated that a plaintiff should have to admit tax evasion before a court could make a finding favourable to a plaintiff of income exceeding that disclosed in income tax returns even if such a finding was otherwise open on the evidence.
76Giles JA's view that such an admission is not necessary is, in my view supported by the reasoning in Husher v Husher and Conley v Minehan and, too, by Cohen v Ninkovic [2000] WASCA 169, the facts of which bear some similarity to the present case.
77In Cohen v Ninkovic, the plaintiff was a painter who was injured in a motor vehicle accident on 20 August 1998. On the evidence at trial, he had not been engaged in gainful work as a painter for a period of at least 13 months prior to the accident; according to his income tax returns in the six financial years prior to the accident he had earned only a total of $14,372 as a painter and during three of those years he had earned nothing. The income of $14,372 represented an average weekly income figure of $46 or $2395 per annum: see Cohen v Ninkovic (at [8], [11] and [13]).
78There was evidence from a representative of a company ("A & Z") for which the plaintiff had done intermittent painting work in the past that he would have had work with that company from 24 August 1998 until trial and probably longer. The trial judge found that evidence "difficult to accept, particularly because of the respondent's minimal work with A & Z over the preceding seven years and the big lapses of time when he was not employed at all." However, her Honour considered that because by the date of the accident "the respondent was then the father of two young children and had to support them, his circumstances had changed considerably and it was therefore open to accept his evidence that he genuinely needed work and was prepared to take up a job offer from A & Z which, as at 24 August 1998, was to last for some 22 days." There was also evidence that the person employed to replace the plaintiff worked until the end of March 1999 on that and other jobs. Accordingly the trial judge was prepared to award him lost past wages of $110 net per day from 24 August 1998 until 31 March 1999, deducting four weeks to reflect Christmas and contingencies. Thereafter her Honour allowed him $7700 up to trial, "a global amount" (or buffer as more commonly described in this State) representing 70 days at $110 per day on the assumption that he would have worked during that period with A & Z after March 1999 and prior to trial. The award of $7700 represented about 70 of the 170 working days which would have been available to the respondent during that time: Cohen v Ninkovic (at [11]).
79On appeal, the appellant complained that the plaintiff had failed to discharge his legal burden of proof of satisfying the Court that he had suffered damage which could be quantified in money terms. The appellant also relied upon Giorginis v Kastrati to submit that "because the respondent had confirmed that his income was that disclosed in his relevant income tax returns and because in the six years prior to the accident the most he had earned as a painter was $5772 in one year (1992/93), there was on the evidence no reason to conclude that but for the accident, he would have exercised his earning capacity to any greater extent than he had before that accident": Cohen v Ninkovic (at [13], [14]).
80Miller J (with whose reasons Wallwork and Parker JJ agreed) rejected the appellant's submission as "overlook[ing] the fact that what the respondent was entitled to be compensated for was a loss of earning capacity which had occurred by reason of the accident": Cohen v Ninkovic (at [15]). He referred to Barwick CJ's statement in O'Brien v McKean [1968] HCA 58; (1968) 118 CLR 540 (at 545 - 546) that:
"... it is the loss of earning capacity which has occurred by reason of the accident which is to be the subject of compensation by an award of damages: it is not a case of replacing the wages which would have been earned in the future by a sum of money which represents the present value of the total of such wages: see Arthur Robinson (Grafton) Pty Ltd v Carter. That loss of earning capacity has already occurred and is either permanent or likely to continue for some estimable time. The fair compensation for it is to be determined as a matter of judgment and not of calculation. But it is of course to be an informed judgment. Though the damages as I have said are not to be a replacement of the future wages, part of the relevant information for the purpose of forming a judgment as to the fair and reasonable compensation is a broad estimate of what that earning capacity before its destruction or diminution was capable of producing during such time as it would have been likely to be gainfully exercised. In obtaining such a conspectus, the vicissitudes of life, as it has been said, must not be lost sight of." (Emphasis added)
81Miller J observed (at [19]) that the trial judge's "ultimate methodology was one of 'simply fixing the sum seen to be appropriate to the loss' by reference to the potential daily earnings which the respondent, as a painter, would have been capable of earning had he obtained work in that trade and been motivated to do it." His Honour also observed (at [17]) that "[t]he award of damages made for past loss of earning capacity was modest" as, too was the "global allowance" for the future.
82Miller J reiterated (at [19]) the established principle that "[d]ifficulties in estimating damages do not relieve a tribunal from the responsibility of assessing them 'as best it can'": McRae v Commonwealth Disposals Commission [1951] HCA 79; (1951) 84 CLR 377 per Dixon and Fullagar JJ (at 411); see also State of New South Wales v Moss (at [87]) per Heydon JA (Mason P and Handley JA agreeing).
83His Honour concluded (at [19]) that the trial judge did not err in the exercise of her discretionary judgement. While his Honour accepted that it "was not the case that the [plaintiff] was contending that he earned anything more than the figures revealed in his income tax returns", he held that it was open to the trial judge "to conclude that whatever those earnings might have been over the preceding six years, the respondent did have a capacity to work as a painter and was in the period post-accident and for a period of approximately two years after trial, likely to have exercised that capacity."
84In my view the authorities do not mandate that a plaintiff must admit to tax evasion before the Court can determine on all the evidence how to quantify the plaintiff's lost earning capacity. To require such an express admission would be a triumph of form over substance. Rather, as Husher v Husher, Conley v Minehan and Cohen v Ninkovic make plain, the tax treatment of a plaintiff's income is not conclusive. The Court must determine what the plaintiff could have done in the workforce and what sum of money the plaintiff would have had at his or her disposal: Husher v Husher (at [23]).
85I would reject the appellant's submission concerning the effect of the workers compensation payments. In my view Heuston v Yore Contractors Pty Ltd is authority only for the proposition Hunt CJ at CL stated, namely that "the continued payment of worker's compensation is admissible against the defendant in whose name the insurer defends the common law proceedings as an admission that the worker is still incapacitated at the time of such payments as a result of the injury which he received in the course of his employment". It is common ground in this case, as I have said, that the appellant has been fully incapacitated since the accident. Heuston v Yore Contractors Pty Ltd is not, however, authority for the proposition that the amount the workers compensation insurer pays the plaintiff represents his or her income foregone as a result of the accident. It is apparent from the correspondence in evidence in which the respondents' workers compensation insurer sought to claw back amounts it said the appellant had been overpaid by way of workers compensation that the insurer's calculation of his average weekly earnings was undertaken in accordance with a statutory formula as required by the Workers Compensation Act.