“ Section 73 Failure to make returns etc (1) Where a person has failed to make any returns required under this Act (or under any provision repealed by this Act) or to keep any documents and afford the facilities necessary to verify such returns or where it appears to the Commissioners that such returns are incomplete or incorrect, they may assess the amount of VAT due from him to the best of their judgment and notify it to him.”
“ Section 77 Assessments: time limits and supplementary assessments (1) Subject to the following provisions of this section, an assessment under section 73. . . or 76, shall not be made - (a) more than [4 years] after the end of the prescribed accounting period or importation . . . concerned, or (b) in the case of an assessment under section 76 of an amount due by way of a penalty which is not among those referred to in subsection (3) of that section, [4 years] after the event giving rise to the penalty.”
“(p) an assessment - (i) under section 73(1) or (2) in respect of a period for which the appellant has made a return under this Act; or (ii) under [subsections (7), (7A) or (7B)] of that section; . . . (iii) . . . or the amount of such an assessment;”
“The tribunal should remember that its primary task is to find the correct amount of tax, so far as possible on the material properly available to it, the burden resting on the taxpayer. In all but very exceptional cases, that should be the focus of the hearing, and the tribunal should not allow it to be diverted into an attack on the Commissioners’ exercise of judgment at the time of the assessment.”
“Quite clearly that was a view which the tribunal could properly come to; but the fact that they came to that conclusion as to the amount of the assessment and rejected the view of the commissioners to that extent does not mean that the validity of the assessment was called into question. What the tribunal was doing when they decided to reduce the assessment was making a decision on the material before them as to the proper amount of tax in fact due. It was quite open to the tribunal, on the balance of probabilities, to come to the conclusion…”