July 26, 2026
Michael Tippett

Most parcels forward without incident. The ones that cause problems almost always contain something the sender did not realise was restricted, and the failure mode is expensive: the item is seized or destroyed, the shipment is returned at your cost, or in the worst case the whole consignment is held while a dangerous goods issue is resolved.
This page groups the categories that matter into four buckets, because the rules come from four different places and behave differently.
Three separate rule sets apply to every shipment: what is legal to export, what the carrier will accept by air, and what the destination country allows in. An item has to clear all three.
These cannot be posted or forwarded at all, domestically or internationally, by any carrier. There is no packaging or declaration that makes them acceptable.
| Category | Examples |
|---|---|
| Explosives and pyrotechnics | Fireworks, flares, detonators, ammunition, blasting caps |
| Illicit drugs and precursors | Controlled substances, drug paraphernalia where illegal at either end |
| Weapons | Firearms and firearm parts, prohibited knives, tasers, pepper spray |
| Counterfeit and stolen goods | Replica branded items, pirated media |
| Protected wildlife and CITES material | Ivory, protected species products, some corals, shells and timbers |
| Human and animal remains | Including ashes by most carriers, and biological or infectious material |
| Radioactive and toxic substances | Poisons, infectious substances, radioactive material |
This is the bucket that catches ordinary shoppers, because the items are legal, sold openly, and sitting in your bathroom cabinet. The problem is air transport. International forwarding goes by air, and air freight applies dangerous goods rules that surface transport does not.
| Item | Why it is restricted | Usual position |
|---|---|---|
| Loose lithium batteries | Fire risk | Generally prohibited by air when shipped on their own |
| Devices with batteries installed | Fire risk, lower when contained | Often acceptable within limits; declare it |
| Aerosols | Pressurised, often flammable | Restricted or prohibited depending on contents and service |
| Perfume, aftershave, nail polish | Alcohol content makes them flammable liquids | Commonly refused on air services |
| Flammable liquids and gases | Fire risk | Prohibited; includes fuels, solvents, lighters and refills |
| Corrosives and oxidisers | Damage and reaction risk | Prohibited; includes some cleaning chemicals and pool chemicals |
| Magnetised material | Interferes with aircraft instruments | Restricted above a field-strength threshold |
| Dry ice | Sublimates and displaces oxygen | Restricted; requires specific handling |
Because thresholds, watt-hour limits and quantity allowances change and differ by carrier and service, treat the table as a guide to what needs checking rather than a specification. Confirm the current position in the carrier's own dangerous goods guidance: Australia Post dangerous and prohibited goods.
Plenty of goods leave Australia without issue and are then stopped on arrival. This is entirely destination-specific, and it is the category most likely to result in a seizure you cannot appeal.
Duty and tax treatment is a separate question from admissibility. For the value thresholds that determine whether tax applies on arrival, see our de minimis thresholds by country reference.
If a prohibited item arrives at the warehouse, it cannot be forwarded. Depending on what it is, the options are return to sender at your cost, disposal, or in the case of genuine dangerous goods, handling under the carrier's own procedures. None of those outcomes is cheap, and none of them gets the item to you.
The practical advice is therefore simple: check before you order, not after. Two habits prevent nearly every problem. First, if an item is pressurised, flammable, battery-powered or edible, confirm it is acceptable on the service you intend to use. Second, declare contents accurately. Understating or mislabelling a shipment to get it past a restriction is a customs offence, and it turns a refused parcel into a much more serious problem.
For choosing between services once you know your item is acceptable, see our AusPost versus DHL Express comparison, and for pricing, the international postage rate table.
Prohibited and restricted item rules change, vary between carriers and services, and differ by destination. This page is a starting point for knowing what to check, not a substitute for the carrier's current guidance and the destination country's import rules. When in doubt, ask before you buy.
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