“I examined the zero-rated sales. Up to period 11/08 less than 10% on average were zero-rated. I did an exercise as below where I compared the zero-rated purchases to the zero sales. Period zero-rated purchases percentage sales percentage 10/10 2,457 6% 16,005 49% 09/10 14,597 12% 66,689 49% 06/10 9,050 26% 41,567 49% 03/10 15,110 28% 42,723 45% This shows that your zero-rated sales records are incorrect with the result that not enough output VAT is being declared. The average zero-rated purchases from the above calculation shows 18%. However I have taken out the 10/10 period out of the equation as this was for only one month so as not to distort the figures. This resulted in a 22% average zero-rated purchases. To be fair to you I am treating 25% of purchases as zero-rated and therefore 25% of the sales were zero-rated as well which leaves 75% standard rated. I have applied this percentage to the sales and you will therefore be receiving a£26,655 assessment calculated as follows: ...”
“As I have indicated, unless the situation is one where no material is before the commissioners on which they can reasonably base an assessment, the commissioners are not required to make investigations. If they do make investigations then they have got to take into account the material disclosed by those investigations. Obviously, as a matter of good administrative practice, it is desirable that the commissioners should make all reasonable investigations before making an assessment. If they do that it will avoid, in many cases, the necessity of appeals to the tribunal. However to try and say that in a particular case a particular form of investigation should have been carried out, is a contention which, in my view, as a matter of law, bearing in mind the wording of s.31(1), is difficult to establish.”