“…so far as the discovery point is concerned, once the inspector comes to the conclusion that, on the facts which he has discovered, the taxpayer has additional income beyond that which he has so far declared to the inspector, then the usual presumption of continuity will apply. The situation will be presumed to go on until there is some change in the situation, the onus of proof of which is clearly on the taxpayer.”
“In our view, this quotation [from Jonas v. Bamford ] expresses no legal principle. It seems to us that it would be quite wrong as a matter of law to say that because X happened in Year A it must be assumed that it happened in the prior year. An officer is not bound by law and in the absence of some change to make or to be treated as making a discovery in relation to last year merely because he makes one for this year. This Tribunal is not bound to conclude that what happened this year will happen next year. It seems to us that Walton J is instead expressing a common sense view of what the evidence will show. In practice, it will generally be reasonable and sensible to conclude that if there was a pattern of behaviour this year then the same behaviour will have been followed last year. Sometimes, however, that will not be a proper inference: there will be occasions when the behaviour related to a one-off situation, perhaps a particular disposal, or particular expenses; in those circumstances continuity is unlikely to be present.”