(1) If an allotment becomes, or ceases to be, rateable during the course of a financial year:
(a) the allotment is liable to rates under section 15 for the financial year; but
(b) the amount of rates payable is the amount that is proportionate to the part of the financial year during which the allotment is rateable.
(2) The Corporation must make any refund or remission of rates necessary to give effect to this section.