Australia collects GST on most consumer imports at the point of sale for registered sellers, and at the border for consignments above the low value line. Customs duty applies below that line only in limited cases. The figure is a published structural line.
Australia separates two questions that other destinations merge: whether tax has already been collected at the point of sale, and whether duty attaches at the border. For most consumer purchases from a registered seller, GST is collected when you pay rather than when the parcel lands, which is why many Australian buyers never see a border invoice at all. That does not mean the border step is absent — it means the money step happened earlier.
The binding constraint on Australian routes is usually not tax but inspection. Quarantine rules cover organic material, timber, and soil residue, and a parcel containing a wooden item or an item with plant-derived material can be routed to inspection regardless of value. Inspection adds time that no line publishes, which is why our transit ranges for Australian routes carry wider upper bounds than the equivalent European ones.
There is also a hard ninety-day window for many postal imports: parcels not cleared or claimed inside it can be returned or disposed of. The window matters because a parcel that goes to inspection and then sits unclaimed consumes that time without appearing to move in tracking. Buyers who assume tracking silence means the parcel is still travelling have lost parcels this way.
For a mixed haul, the practical ordering is: check whether the seller collects GST at checkout; check whether anything in the parcel is organic or timber-based; and then choose a line on documentation quality rather than on headline price.
One further structural point: an item that is legal to import is not automatically legal to import in the quantity or packaging it arrives in. Multi-packs and gift sets can classify differently from the single unit they resemble, which is a classification problem rather than a quarantine one.
Ranges are community-reported and are deliberately wide where the clearance step is the variable. We do not publish an average, because we do not have a defensible sample for one.