“In our judgment, no new information, of fact or law, is required for there to be a discovery. All that is required is that it has newly appeared to an officer, acting honestly and reasonably, that there is an insufficiency in an assessment. That can be for any reason, including a change of view, change of opinion, or correction of an oversight. The requirement for newness does not relate to the reason for the conclusion reached by the officer, but to the conclusion itself. If an officer has concluded that a discovery assessment should be issued, but for some reason the assessment is not made within a reasonable period after that conclusion is reached, it might, depending on the circumstances, be the case that the conclusion would lose its essential newness by the time of the actual assessment. But that would not, in our view, include a case, such as this, where the delay was merely to accommodate the final determination of another appeal which was material to the liability question. Such a delay did not deprive [the Inspector’s] conclusions of their essential newness for s 29(1) purposes.”
“… on the basis of our finding that nothing new is required except the conclusion, the question in a case such as that put by [counsel for the taxpayer] would, we suggest, not be on the collective corporate knowledge of HMRC, but on the newness of that conclusion. Without deciding the matter, we can certainly envisage an argument that the passing of a file from one HMRC officer to another could not have the effect of refreshing a conclusion that was no longer new. But that does not depend on something new being discovered by reference to HMRC’s collective knowledge. It is solely concerned with the newness of the conclusion.” 44. After referring to these passages from Charlton , the Upper Tribunal (Lord Glennie) in Pattullo v HMRC[2016] STC 2043 (“ Pattullo ”) said, at [52]: “So far as concerns the question of law, namely whether any discovery under s 29(1) has to be acted upon while it remains fresh (or before it becomes stale), I prefer the submissions for the taxpayer. Quite apart from the support given to this submission by the passages in Charlton and Corbally-Stourton to which I have referred, which are highly persuasive, the requirement for the discovery to be acted upon while it remains fresh appears to me to arise on the natural meaning of s 29(1) itself. That subsection provides that 'if' HMRC discover certain matters then they may, subject to what follows later in the section, make an assessment in the amount needed to make good the loss of tax. The word 'if', like many words in the English language, has a variety of shades of meaning. It may be purely conditional. But it may equally have a temporal aspect, as in the expression 'if and when' (eg if the sun comes out we shall go to the beach). I do not regard this as stretching the meaning of 'if'. The context makes it clear that an assessment may be made if and when it is discovered that the assessment to tax is insufficient. It would, to my mind, be absurd to contemplate that, having made a discovery of the sort specified in s 29(1), HMRC could in effect just sit on it and do nothing for a number of years before making an assessment just before the end of the limitation period specified in s 34(1).” 45. As the First-tier Tribunal (“FTT”) in Pattullo had not considered the issue of staleness, as opposed to the time limit (in s 34 TMA), or had elided the two “quite separate issues” the Upper Tribunal held, at [55], that it had erred in law. It continued, at [56]: “However, that is by no means the end of the matter. For the FTT have found as a matter of fact that the discovery was made between June and November 2009: see [38], [39], [53] and [56]. The assessment was made in January 2010. Those are findings of fact which, if allowed to stand, are destructive of the contention that the discovery was stale by the time that the assessment was made. I did not understand Mr Gordon [counsel for the taxpayer] seriously to contend otherwise; but if he did, I reject that contention.” 46. Mr Firth contends that I am bound by the decision of the Upper Tribunal in Pattullo whereas Mr Henderson contends that Lord Glennie’s comments in that case were obiter. 47. Mr Henderson took me to [13] to [19] of the decision of Park J in Langham (Inspector of Taxes) v Veltema[2002] STC 1557 , in which he described the ‘working of the self-assessment system’ to illustrate his argument that if there was a ‘staleness’ test Park J would have mentioned it. Although the decision of Park J in Langham v Veltema was reversed by the Court of Appeal, as Henderson J, as he then was, noted in HMRC v Household Estate Agents Ltd[2008] STC 2045 at [24], it nevertheless approved his description of workings the self-assessment system. While it is true, as Mr Henderson says, that Park J did not mention any staleness test or requirement of newness in Langham v Veltema , as Mr Firth submits, that case cannot be authority for a proposition of law that it did not even consider. 48. The issue of staleness was raised before the Tribunal (Judge Mosedale and Mr Barrett) in the recent case of Atherton v HMRC[2017] UKFTT 831 (TC) in which it observed that: “ 215. …The Upper Tribunal in Charlton also said, obiter or in passing, that the assessment must follow on the heels of the discovery with some alacrity: [37] ...all that is required is that it has newly appeared to an officer, acting honestly and reasonably, that there is an insufficiency in an assessment.... The requirement for newness does not relate to the reason for the conclusion reached by the officer, but to the conclusion itself. If an officer has concluded that a discovery assessment should be issued, but for some reason the assessment is not made within a reasonable period after that conclusion is reached, it might, depending on the circumstances, be the case that the conclusion would lose its essential newness by the time of the actual assessment. But that would not, in our view, include a case, such as this, where the delay was merely to accommodate the final determination of another appeal which was material to the liability question. Such a delay did not deprive [the discovery] of their essential newness for s 29(1) purposes. 216. While it is inherent in the word ‘discovery’ that the discovery must be of something new, there is nothing overt in s 29 which requires the assessment to be proximate to the discovery: this obiter comment in Charlton was therefore criticised in three FTT decisions: Pepper[2015] UKFTT 615 (TC) , Gakhal[2016] UKFTT 356 (TC) and Miesegaes[2016] UKFTT 375 (TC) . 217. Nevertheless, it was followed by the Upper Tribunal in Pattullo[2016] UKUT 270 (TC) at [52], released on14 June 2016 and what was said in Pattullo is binding on this Tribunal as it formed a part of the operative decision. So while in the May 2016 hearings of this appeal, Ms Balmer [counsel for HMRC] sought to persuade us Charlton was wrong on this point, by the July and September hearings she accepted we were bound by Pattullo. We understand that HMRC reserve the right to challenge this interpretation of s 29 if this decision is appealed.” 49. I respectfully agree with the Tribunal in Atherton that Pattullo is binding on this Tribunal and that it is therefore possible for an assessment to loss its “newness” or become “stale”
“… it would only be in the most exceptional of cases that inaction on behalf of HMRC would result in the discovery losing its required newness by the time that an assessment was made.”
“… it would be helpful to try and define the possible circumstances in which a discovery would lose its freshness and be incapable of being used to justify making an assessment made in January 2010.” 51. That said, although Lord Glennie rejected, at [56], the appellant’s argument as the FTT had found that there had been a discovery in that case between June and November 2009 and the assessment made in January 2010, he said that if there had been a discovery in July 2008, when the High Court issued its decision in Drummond v HMRC[2008] STC 2707 (“ Drummond ”) dismissing an appeal by the taxpayer in relation to the same scheme as that utilised by the taxpayer in Pattullo : “… that on any view … the passage of some 18 months or more would, in the circumstances of this case, have made the discovery stale and incapable of justifying the assessment …” 52. It is therefore necessary to consider when the discovery was made in the present case to ascertain whether it was still “fresh” at the time the assessment. As the Upper Tribunal noted in in Charlton , to make a discovery, all that is required is that it has newly appeared to an officer, acting honestly and reasonably, that there is an insufficiency in an assessment. As Lord Glennie observed in Pattullo , at [62]: “…it is the state of mind of the individual HMRC inspector which is relevant, not that of some reasonable HMRC inspector.”
"33. More particularly, it is plain from the wording of the statutory test in section 29(5) that it is concerned, not with what an Inspector could reasonably have been expected to do, but with what he could have been reasonably expected to be aware of. It speaks of an Inspector's objective awareness, from the information made available to him by the taxpayer, of "the situation" mentioned in section 29(1), namely an actual insufficiency in the assessment, not an objective awareness that he should do something to check whether there is such an insufficiency, as suggested by Park J. If he is uneasy about the sufficiency of the assessment, he can exercise his power of enquiry under section 9A and is given plenty of time in which to complete it before the discovery provisions of section 29 take effect. 34. In my view, that plain construction of the provision is not overcome by Mr. Sherry's argument that it is implicit in the words in section 29(5) " on the basis of the information made available to him" (my emphasis) and also in the provision in section 29(6)(d) for information, the existence and relevance of which could reasonably be inferred from information falling within section 29(6) (a) to (c), that the information itself may fall short of information as to actual insufficiency. Such provision for awareness of insufficiency "on the basis" of the specified information or from information that could reasonably be expected to be inferred therefrom does not, in my view, denote an objective awareness of something less than insufficiency. It is a mark of the way in which the subsection provides an objective test of awareness of insufficiency, expressed as a negative condition in the form that an officer "could not have been reasonably expected … to be aware of the" insufficiency. It also allows, as section 29(6) expressly does, for constructive awareness of insufficiency, that is, for something less than an awareness of an insufficiency, in the form of an inference of insufficiency." (5) that the assessment of whether the officer could reasonably have been expected to be aware of the insufficiency falls to be determined on the basis of the types of available information specified in s.29(6). These are the only sources of information to be taken into account for that purpose: see Langham v Veltema at [36]: "
"Mr Coleman said that this was the wrong test. HMRC had to know with reasonable certainty of the insufficiency in question otherwise the office could not have been 'aware' of it. There is, no doubt, an epistemological debate to be had about whether you can discover or be aware of something that does not in fact exist. In the present case, for example, the commissioners decided that there was no insufficiency. Had HMRC discovered or been aware of an insufficiency before their decision that there was in fact no insufficiency? Or had they been aware of it, but then ceased to be aware of it? And now that I have disagreed with the commissioners on one of the points, are HMRC aware of it again? Or have they been aware of it throughout? But I do not consider that I need to enter into this debate. In the present case the commissioners asked whether HMRC had sufficient information to make a decision whether to raise an additional assessment. That seems to me to be the right test."
"I do not suggest that the hypothetical inspector is required to resolve points of law. Nor need he forecast and discount what the response of the taxpayer may be. It is enough that the information made available to him justifies the amendment to the tax return he then seeks to make. Any disputes of fact or law can then be resolved by the usual processes. For these reasons I would dismiss the appeal of HMRC."
"… As the Chancellor points out (at [56]), awareness of an insufficiency does not require resolution of any potential dispute. After all, once an amendment is made, it may turn out after complex debate in a succession of appeals as to the facts or law, that the profits stated were not insufficient. I have dwelt on this point because I wish to leave open the possibility that, even where the taxpayer has disclosed enough factual information, there may be circumstances in which an officer could not reasonably be expected to be aware of an insufficiency by reason of the complexity of the relevant law. [70] I also wish to express polite disapproval of any judicial paraphrase of the wording of the condition at s 30B(6) or s 29(5). I think there is a danger in substituting wording appropriate to standards of proof for the statutory condition. The statutory condition turns on the situation of which the officer could reasonably have been expected to be aware. Awareness is a matter of perception and of understanding, not of conclusion. I wish, therefore, to express doubt as to the approach of the Special Commissioner in Corbally-Stourton v Revenue and Customs Comrs [2008] STC (SCD) 907 and of the Outer House in R (on the application of Pattullo) v Revenue and Customs Comrs[2009] CSOH 137 ,[2010] STC 107 , namely that to be aware of a situation is the same as concluding that it is more probable than not. The statutory context of the condition is the grant of a power to raise an assessment. In that context, the question is whether the taxpayer has provided sufficient information to an officer, with such understanding as he might reasonably be expected to have, to justify the exercise of the power to raise the assessment to make good the insufficiency."