“prescribed rate”, in relation to any interest payable in terms of the Securities Transfer Tax Administration Act, 2007, means such rate as the Minister may fix from time to time by notice in the Gazette in terms of section 80(1)(b) of the Public Finance Management Act, 1999 (Act No. 1 of 1999): Provided that where the Minister fixes a new rate in terms of that Act, that new rate applies for the purposes of the Securities Transfer Tax Administration Act, 2007, from the first day of the second month following the date on which that new rate came into operation;