Section 20: On any debt or sum certain, payable at a certain time or otherwise,
consolidated text (as at 2000). juris shows the text as it was consolidated; it does not confirm that this is the law in force today.
20. On any debt or sum certain, payable at a certain time or otherwise,
whereon interest is not reserved or agreed for and which is overdue at the date
of the receiving order and provable in bankruptcy, the creditor may prove for interest at a rate not exceeding 4 per cent per annum to the date of the order from the
time when the debt or sum was payable, if the debt or sum is payable by virtue of
a written instrument at a certain time, and if payable otherwise, then from the time
when a demand in writing has been made, giving the debtor notice that interest
will be claimed from the date of the demand until the time of payment.