(1) The amount of the Government co - contribution in respect of a person for an income year is increased by the amount of interest worked out under subsection ( 2) if the Commissioner pays none of the Government co - contribution on or before the payment date for the co - contribution.
(2) The interest is to be calculated:
(a) on the amount of the Government co - contribution; and
(b) for the period from the payment date for the Government co - contribution until the day on which the Commissioner first pays an amount in satisfaction of the Government co - contribution; and
(c) on a daily basis; and
(d) at the base interest rate for the day on which the interest is calculated.