Judgment
1BEAZLEY P: I have had the opportunity of reading in draft the reasons of Macfarlan JA and the additional reasons of Basten JA. I agree with the reasons of each of their Honours and the orders proposed by Macfarlan JA. The only matter upon which I would add a comment is in respect of the second ground of appeal and the question of relevant considerations.
2The matters which the appellant contended were relevant and had not been taken into account involved varying degrees of connection with Australia in general and the subject property in particular. For example, the fact that the appellant was brought up and attended school in Australia and had his wedding ceremony in Australia indicated a degree of connection to Australia. The fact that the appellant's Australian HSBC bank accounts were sent to the subject property and the fact that the property was not leased indicated a degree of connection with the property. The same may be said of the fact that the appellant's wife lived in the property for five months following the birth of their son.
3The factors reflecting a connection with the property, were, in my opinion, relevant considerations: Minister for Aboriginal Affairs v Peko-Wallsend Ltd [1986] HCA 40; 162 CLR 24; Minister for Immigration and Citizenship v Li [2013] HCA 18; 87 ALJR 618.
4However, having regard to the evidence upon which the Tribunal principally and quite properly relied, namely, the periods of time spent at the property over a ten year period, these factors were not of such importance or weight that a failure to consider them or to take them into account deprived the appellant of the possibility of a successful outcome: see Minister for Aboriginal Affairs v Peko-Wallsend Ltd at 40 per Mason J; Lu v Minister for Immigration and Multicultural and Indigenous Affairs [2004] FCAFC 340; 141 FCR 346 at [64] per Sackville J (as his Honour then was).
5The other matters, such as having been brought up in and having attended school in Australia, whilst providing background information, were not, in this case, of such significance that a decision maker was bound to take them into account.
6BASTEN JA: This appeal, limited to a question of law, comes from the Appeal Panel of the Administrative Decisions Tribunal. In the Tribunal, Mr Lo sought to challenge the decision of the Chief Commissioner that he was liable for land tax on a residential property in Mosman. He relied upon the exemption for a "principal place of residence". For the reasons given by Macfarlan JA, and for those which follow, the appeal should be dismissed with costs.
7During the relevant land tax years, the appellant spent, on average, 17 days at his property in Mosman; the rest of the time he and his family lived in Hong Kong. (The actual figures are set out by Macfarlan JA at [30] below.) The primary error identified by counsel for the appellant lay "in treating as conclusive or determinative the periods of time [he was] physically present at Mosman and Hong Kong": Tcpt, 18/04/13, p 2(3). He also asserted that a series of other factual considerations, which were "relevant considerations", were not taken into account.
8These grounds are, in practical terms, interrelated. The periods of physical presence were undoubtedly of primary importance and, had there been no other matters material to the determination, the question of physical presence would properly have been treated as "conclusive or determinative", to adopt the language of counsel. Indeed, even were there other factors which the Tribunal was entitled to take into account, it might still have treated periods of physical presence as determinative. Something more would have been required to demonstrate error of law.
9The 'something more' requires reference to the dual concepts of "relevant considerations" and "taking into account". The term "relevant considerations" is widely misunderstood: as used in leading authorities, such as Minister for Aboriginal Affairs v Peko-Wallsend Ltd [1986] HCA 40; 162 CLR 24 at 39 (Mason J) it refers to a matter which the decision-maker is bound to take into account. The obligation may derive from the express terms of the power-conferring statute or may be implied from its subject matter, scope and purpose. A preferable term would be "mandatory consideration". Further, a matter traditionally described as an "irrelevant consideration" is one which is prohibited because, having regard to the subject matter, scope and purpose of the power being exercised, it can be seen to reflect an extraneous or improper purpose or to render the decision arbitrary or capricious. Between these two categories is usually a wide range of permissible considerations which the decision-maker may weigh or disregard without committing an error of law.
10The next concept is that of "taking into account". It covers a spectrum of conduct. If a decision-maker who gives reasons for a decision makes no reference to a particular matter, it may be inferred that he or she disregarded it, either deliberately or through inadvertence. In either case, if it were a mandatory consideration, there would be an error of law. If, however, the matter is referred to there may still be a basis for review. In some cases, it is asserted that there has been a failure to give "proper, genuine and realistic consideration", to a particular matter. That is best understood as a complaint of failure "to give adequate weight to a relevant factor of great importance": see Peko-Wallsend at 41 (Mason J). The other side of this complaint is giving "excessive weight to a relevant factor of no great importance". Dealing with these circumstances, Mason J continued:
"The preferred ground on which this is done, however, is not the failure to take into account relevant considerations or the taking into account of irrelevant considerations, but that the decision is 'manifestly unreasonable'. This ground of review was considered by Lord Greene MR in Wednesbury Corporation, in which his Lordship said that it would only be made out if it were shown that the decision was so unreasonable that no reasonable person could have come to it."
11Mason J left the matter with a warning that a court "should proceed with caution when reviewing an administrative decision on the ground that it does not give proper weight to relevant factors, lest it exceed its supervisory role by reviewing the decision on its merits": at 42. This concern was reiterated by the High Court in Minister for Immigration and Citizenship v SZJSS [2010] HCA 48; 243 CLR 164 at [30] and by this Court in Allianz Australia Insurance Ltd v Cervantes [2012] NSWCA 244 at [15]-[24], in my judgment with which McColl and Macfarlan JJA agreed.
12Not all decisions are accompanied by reasons. In the absence of reasons, it may be difficult to say whether a particular factor has been taken into account. A person challenging a decision may face an evidential dilemma: If the matter had been raised before the decision-maker, the court may be inclined to infer that it was taken into account; if, on the other hand, it had not been raised, the challenge may be rejected on the basis that the decision-maker was not required to take into account any matter not relied on by the applicant. In other cases, an applicant may be able to rely upon the approach enunciated by Dixon J in Avon Downs Pty Ltd v Federal Commissioner of Taxation [1949] HCA 26; 78 CLR 353 at 360:
"Moreover, the fact that he has not made known the reasons why he was not satisfied will not prevent the review of his decision. The conclusion he has reached may, on a full consideration of the material that was before him, be found to be capable of explanation only on the ground of some such misconception. If the result appears to be unreasonable on the supposition that he addressed himself to the right question, correctly applied the rules of law and took into account all the relevant considerations and no irrelevant considerations, then it may be a proper inference that it is a false supposition. It is not necessary that you should be sure of the precise particular in which he has gone wrong. It is enough that you can see that in some way he must have failed in the discharge of his exact function according to law."
13It is necessary to consider whether anything said in Minister for Immigration and Citizenship v Xiujuan Li [2013] HCA 18 requires qualification of these propositions. The respondent, Ms Li, was an applicant for a particular visa which required a favourable "skills assessment". The initial assessment was found to have been based on false information and the visa application was rejected. Ms Li applied for a review, but a subsequent skills assessment proved adverse. She sought an adjournment of the hearing into her visa application to allow her to pursue a review of the adverse skills assessment. (The decision-making process was bifurcated: her application for a visa being considered by the Migration Review Tribunal, but her challenge to the adverse skills assessment being considered by another authority.) The original visa application had been lodged on 10 February 2007. On 25 January 2010 the Tribunal rejected her request for an adjournment on the basis that she had had "enough opportunities to present her case". That decision was set aside by a Federal Magistrate on the basis of Wednesbury unreasonableness. His decision was upheld by the Full Court of the Federal Court, Greenwood and Logan JJ characterising an unreasonable refusal of an adjournment as a failure to discharge the "core statutory function" of the Tribunal: [2012] FCAFC 74; 202 FCR 387 at [29]. The appeal by the Minister was dismissed by the High Court.
14Referring to that statement of the issue, French CJ pointed to the need "to keep in mind the distinction between a decision-maker finding a jurisdictional fact and a decision-maker exercising a discretion": at [22], referring to Minister for Immigration and Citizenship v SZMDS [2010] HCA 16; 240 CLR 611 at [39] (Gummow ACJ and Kiefel J). Li involved the exercise of a discretionary power and not the determination of a precondition to the engagement of the power. The present case involved a binary choice, although one which depended upon a concept involving a degree of evaluative judgment. (As to the similarity of the approach to error of law in the context of the exercise of a discretionary power and the making of an evaluative judgment, see Gageler J in Li at [90], referred to below.)
15French CJ stated the principles, relevantly for present purposes, at [26] in the following terms:
"The rationality required by 'the rules of reason' is an essential element of lawfulness in decision-making. A decision made for a purpose not authorised by statute, or by reference to considerations irrelevant to the statutory purpose or beyond its scope, or in disregard of mandatory relevant considerations, is beyond power. It falls outside the framework of rationality provided by the statute. To that framework, defined by the subject matter, scope and purpose of the statute conferring the discretion, there may be added specific requirements of a procedural or substantive character."
16The Chief Justice further stated at [30]:
"The requirement of reasonableness is not a vehicle for challenging a decision on the basis that the decision-maker has given insufficient or excessive consideration to some matters or has made an evaluative judgment with which a court disagrees even though that judgment is rationally open to the decision-maker. Gleeson CJ and McHugh J made the point in Eshetu that the characterisation of somebody's reasoning as illogical or unreasonable, as an emphatic way of expressing disagreement with it, 'may have no particular legal consequence.'"
17The joint judgment of Hayne, Kiefel and Bell JJ referred to a long line of authorities requiring compliance with "the rules of reason and justice": at [65]. The joint reasons continued at [66]:
"This approach does not deny that there is an area within which a decision-maker has a genuinely free discretion. That area resides within the bounds of legal reasonableness. The courts are conscious of not exceeding their supervisory role by undertaking a review of the merits of an exercise of discretionary power. Properly applied, a standard of legal reasonableness does not involve substituting a court's view as to how a discretion should be exercised for that of a decision-maker."
18Their Honours continued at [72]:
"The more specific errors in decision-making, to which the courts often refer, may also be seen as encompassed by unreasonableness. This may be consistent with the observations of Lord Greene MR, that some decisions may be considered unreasonable in more than one sense and that 'all these things run into one another'. Further, in Minister for Aboriginal Affairs v Peko-Wallsend Ltd, Mason J considered that the preferred ground for setting aside an administrative decision which has failed to give adequate weight to a relevant factor of great importance, or has given excessive weight to an irrelevant factor of no importance, is that the decision is 'manifestly unreasonable'. Whether a decision-maker be regarded, by reference to the scope and purpose of the statute, as having committed a particular error in reasoning, given disproportionate weight to some factor or reasoned illogically or irrationally, the final conclusion will in each case be that the decision-maker has been unreasonable in a legal sense."
19The reference to giving "excessive weight to an irrelevant factor of no importance" appears to be a typographical error: no weight can be given to a prohibited consideration. Mason J referred to giving excessive weight to a relevant consideration. So understood, this passage affirmed the approach in Peko-Wallsend. The joint reasons further concluded that "[u]nreasonableness is a conclusion which may be applied to a decision which lacks an evident and intelligible justification": at [76].
20Focusing on Australian authority, Gageler J also discussed the implied obligation to act reasonably, as explained by Brennan CJ in Kruger v The Commonwealth [1997] HCA 27; 190 CLR 1 at 36: see Li at [88]. He continued at [90]:
"Implication of reasonableness as a condition of the exercise of a discretionary power conferred by statute is no different from implication of reasonableness as a condition of an opinion or state of satisfaction required by statute as a prerequisite to an exercise of a statutory power or performance of a statutory duty. Each is a manifestation of the general and deeply rooted common law principle of construction that such decision-making authority as is conferred by statute must be exercised according to law and to reason within limits set by the subject-matter, scope and purposes of the statute."
21Gageler J further emphasised the constraints on the application of such a ground of review, stating at [108]:
"Judicial determination of Wednesbury unreasonableness is constrained by two principal considerations. One is the stringency of the test that a purported exercise of power is so unreasonable that no reasonable repository of the power could have so exercised the power. The other is the practical difficulty of a court being satisfied that the test is met where the repository is an administrator and the exercise of the power is legitimately informed by considerations of policy."
22The present case did not involve considerations based on policy, but rather the proper application of a taxing statute. Further, it was not concerned with any allegation of defective procedure, but a flaw in the final conclusion reached by the Chief Commissioner and, on review, by the Tribunal. There is, accordingly, nothing in the reasoning in Xiujuan Li which calls into question the approach adopted above. Neither the outcome nor the process of reasoning bespeaks unreasonableness, let alone a high degree of unreasonableness. Indeed, it may be the only decision which was reasonably open on the material available to the Tribunal.
23The appeal should be dismissed with costs.
24MACFARLAN JA: Mr Patrick Lo, the appellant, was assessed as liable for land tax under the Land Tax Management Act 1956 (the "Act") for the tax years 2005 - 9 in respect of a residential property in Mosman that he owned at the relevant times for assessment, that is, at midnight on 31 December immediately preceding each year (s 8 of the Act). The respondent rejected Mr Lo's claim that the property was his principal place of residence and therefore exempt from land tax (under s 10(1)(r)). His decision was affirmed by the Revenue Division of the Administrative Decisions Tribunal ("ADT") ([2011] NSWADT 224) and an ADT Appeal Panel dismissed an appeal from that decision ([2012] NSWADTAP 12).
25Mr Lo now appeals from the Appeal Panel decision under s 119 of the Administrative Decisions Tribunal Act 1997. Under s 119(1), an appeal only lies "on a question of law".
26The appeal was pressed on two bases only (Transcript pp 1 - 2). First, Mr Lo contended that the Appeal Panel erred in treating his presence in Hong Kong for most of the relevant periods as being a conclusive factor against his contention that the Mosman property was his principal place of residence. Secondly, he contended that the Appeal Panel erred in law in failing to take into account 11 identified matters in determining that the Mosman property was not his principal place of residence.
27As the present appeal is limited to questions of law, only a brief summary of the facts is required. More details of the facts may be found in the ADT decisions referred to above.