577.8. A corporation resident in Canada may deduct in computing its income for a taxation year, in respect of a specified amount included in that computation under section 577.5 or in respect of an amount so included under section 577.9 in relation to a particular loan or indebtedness, a particular amount that is equal to the amount that the corporation deducts for the year in relation to the particular loan or indebtedness under subsection 9 of section 90 of the Income Tax Act (R.S.C. 1985, c. 1, (5th Suppl.)).