Taxable years.
(iii) Taxable years. If the borrower has not engaged in the sale or lease of property (as described in this subparagraph) for the 3 immediately preceding taxable years, or if 3 taxable years beginning after December 31, 1971, have not elapsed, the fraction will be computed on the basis of such gross receipts for its taxable years immediately preceding the loan and beginning after December 31, 1971, during which the borrower has so engaged. No producer's loans can be made to a borrower until after the end of the first taxable year of the borrower beginning after December 31, 1971.