A New Tax System (Goods and Services Tax) Act 1999
An adjustment note for an *adjustment that arises from an *adjustment event relating to a *taxable supply:
(a) must be issued by the supplier of the *taxable supply in the circumstances set out in subsection (2); and
(b) must set out the *ABN of the entity that issues it; and
(c) must contain such other information as the Commissioner determines in writing; and
(d) must be in the *approved form.
However, the Commissioner may treat as an adjustment note a particular document that is not an adjustment note.
The supplier of the *taxable supply must:
(a) within 28 days after the *recipient of the supply requests the supplier to give an *adjustment note for the *adjustment relating to the supply; or
(b) if the supplier has issued a *tax invoice in relation to the supply (or the recipient has requested one) and the supplier becomes aware of the adjustment before an adjustment note is requested - within 28 days after becoming aware of that fact;
give to the recipient an *adjustment note for the *adjustment, unless any *tax invoice relating to the supply would have been a *recipient created tax invoice (in which case it must be issued by the recipient).
However, in circumstances that the Commissioner determines in writing, paragraph (2)(b) has effect as if the number of days referred to in that paragraph is the number of days specified in the determination in relation to those circumstances.
Those circumstances may, for example, include the kind of the *taxable supply.