176. Subject to section 176.1, a taxpayer may deduct such part of an amount, other than an amount referred to in the second paragraph, that is not otherwise deductible in computing the income of the taxpayer and that is an expense incurred by the taxpayer in the year or a preceding taxation year(a) in the course of a borrowing of money used by the taxpayer for the purpose of earning income from a business or property, other than money used by the taxpayer for the purpose of acquiring property the income from which is exempt from tax;
(b) in the course of incurring indebtedness that is an amount payable for property acquired for the purpose of earning income therefrom or for the purpose of earning income from a business, other than property the income from which would be exempt from tax or property that is an interest in a life insurance policy; or
(c) in the course of a rescheduling or restructuring of a debt obligation of the taxpayer or an assumption of a debt obligation by the taxpayer, where(1) the debt obligation is in respect of a borrowing described in paragraph a or in respect of an amount payable described in paragraph b, and
(2) in the case of a rescheduling or restructuring, the rescheduling or restructuring, as the case may be, provides for the modification of the terms or conditions of the debt obligation or the substitution or conversion of the debt obligation with or to another debt obligation or a share.
The amount to which the first paragraph refers is (a) an amount paid or payable as or on account of the principal amount of a debt obligation or interest in respect of a debt obligation;
(b) an amount that is contingent or dependent on the use of, or production from, property; or
(c) an amount that is computed by reference to revenue, profit, cash flow, commodity price or any other similar criterion or by reference to dividends paid or payable to shareholders of any class of shares of the capital stock of a corporation.