Section 59 : Banking business:
1) In computing the income or loss made by any person carrying on a banking business from that business in any income year, it shall be separately computed as if the banking business were a business distinct from any other business carried on by that person.

2) If any person suffers a loss from the banking business in any income year, that person may subtract, as prescribed, such loss from the incomes of the past five income years from that business.

3) In subtracting the loss pursuant to Sub-section (2), the following provisions shall apply:-

a) It shall not exceed any income earned from that business in the past income year,

b) It shall not exceed the total sum of loss,

c) The amount of loss that could not be deducted for purposes of Section 20 shall be lessened.

Explanation: For purposes of this Section, "banking business" means banking transactions carried out by banks and financial institutions permitted to carry out banking transactions under the laws in force.