rebate received by a member of a co-operative company based
on his purchases from that company, where the Commissioner is satisfied that ninety per centum of its sales is made to its own members." I shall assume for present purposes that the sum in question answers the description in that provision.
It is plain that wherever the word "income" is found in the Act. it must, in the absence of a contrary intention appearing, be read
SO as to exclude the sum of £971 3s. 9d. Consequently, that sum does not form part of the taxpayer's gross income, although in the absence of that provision it might be included by virtue of sec. 16 (b). If, therefore, the Commissioner had proceeded to add it to the gross proceeds of the business, which do not include it, and would remain the same even if the rebate had never been received, the taxpayer could rightfully have insisted on its excision. But could he also have insisted, as he is doing here, not only on its absence from the gross income side of the computation, but also on its addition to the deductions from the rectified gross income ? To do
SO would require some provision in the Act allowing it. Taxable income -which, of course, excludes this rebate means the amount of income remaining after all deductions allowed by this Act have been made." The deductions allowed by the Act include losses and outgoings actually incurred in producing income. When a rebate is made to a purchaser of goods based on his purchase, it means that his purchase price is by SO much the less. To support the claim, therefore, the deduction of the rebate from the nominal price must be excused, or its deduction from the gross income allowed, by some express provision. No such provision exists. It comes to this, that the provision relied on is irrelevant, because the Commissioner is not seeking to tax it and there is no other pro- vision enabling the taxpayer to ignore it in arriving at his actual cost of purchases, nor can one see why there should be.
The notice of objections and the case stated treat the sum of £971 3s. 9d. as entire in relevant characteristics and legal result. Sec. 39 of the Act makes the assessment prima facie evidence that the amount and all the particulars of the assessment are correct, and there is nothing to show the contrary in respect of time. The case may therefore be determined on this point alone. Still, as