(1) This Act commences, or is taken to have commenced:
(a) after all the Acts listed in subsection ( 2) have received the Royal Assent; and
(b) on the day after the last day on which any of those Acts received the Royal Assent.
(2) These are the Acts:
(a) the A New Tax System (Goods and Services Tax) Act 1999 ;
(b) the A New Tax System (Goods and Services Tax Imposition--Excise) Act 1999 ;
(c) the A New Tax System (Goods and Services Tax Imposition--Customs) Act 1999 ;
(d) the A New Tax System (Goods and Services Tax Imposition--General) Act 1999 ;
(e) the A New Tax System (Goods and Services Tax Administration) Act 1999.