737.18.31. For the purpose of determining, for the purposes of this Title, the income or loss of a qualified corporation for a taxation year from the eligible activities of a recognized business it carries on, the income or loss shall be computed as if (a) the eligible activities were the carrying on of a separate business; and
(b) the qualified corporation were deducting in computing its income for the taxation year and had deducted in computing its income for any preceding taxation year, in relation to the separate business, the maximum amount in respect of any reserve, allowance or other amount.