Commonwealth Consolidated Acts Commonwealth Consolidated Acts(1) Interest payable to a person by virtue of section 9 in respect of an amount of relevant tax, or the part of an amount of relevant tax, refunded to the person, or applied against any liability of the person to the Commonwealth, as a result of a decision to which this Act applies shall be calculated:
(a) in respect of the period that commenced on the later of the following days:
(i) the day on which notice of the assessment, determination or decision, being the assessment, determination or decision in relation to which the decision to which this Act applies was made, was issued to the person by the Commissioner;
(ii) the day on which the amount of relevant tax was paid to the Commissioner;
and ended on the day on which the amount of the relevant tax or the part of the amount of relevant tax, as the case may be, was so refunded or applied; and
(b) at the base interest rate (within the meaning of the Tax Act).
(2) For the purposes of subparagraph (1)(a)(i), if the decision to which this Act relates is a decision of the Commissioner under section 18 - 130 in Schedule 1 to the Taxation Administration Act 1953 in relation to an amount of Pay as you go withholding non - compliance tax, the notice of the decision in relation to which that decision was made is the notice the Commissioner gives to the person under section 18 - 140 in that Schedule in relation to that amount of tax.