The Commissioner of Taxation seems to have powers which are part time lord and part magician if the Anti-Avoidance provisions (see Division 165) of A New Tax System (Goods and Services Tax) Act 1999 are anything to go by…

165‑55  Commissioner may disregard scheme in making declarations

For the purposes of making a declaration under this Subdivision, the Commissioner may:
(a)  treat a particular event that actually happened as not having happened; and
(b)  treat a particular event that did not actually happen as having happened and, if appropriate, treat the event as:
(i)  having happened at a particular time; and
(ii)  having involved particular action by a particular entity; and
(c)  treat a particular event that actually happened as:
(i)  having happened at a time different from the time it actually happened; or
(ii)  having involved particular action by a particular entity (whether or not the event actually involved any action by that entity).

Perfectly clear!

Creative commons attribution for the photograph.