(1) This section applies to an order (other than a pecuniary penalty order) under this Division in relation to an amount that a person was required to pay to, or on behalf of, another person under this Act or a fair work instrument.
(2) In making the order the court must, on application, include an amount of interest in the sum ordered, unless good cause is shown to the contrary.
(3) Without limiting subsection (2), in determining the amount of interest, the court must take into account the period between the day the relevant cause of action arose and the day the order is made.