Every air cargo shipment that lands in Sydney from overseas must pass through Australian customs and biosecurity before it can be delivered. For experienced importers, this is routine. For businesses importing for the first time, it can feel like a maze of forms, codes and charges.

This guide explains the process in plain language: who is involved, what documents you need, how duties and taxes are calculated and how to avoid delays. It is part of our wider Air Freight Sydney guide.

This guide gives general information. Rules and charges change, so confirm current requirements with the Australian Border Force, the Department of Agriculture, Fisheries and Forestry or a licensed customs broker before importing.

Who is involved?

  • Australian Border Force (ABF). Manages customs at the border, collects duty and GST and enforces import controls.
  • Department of Agriculture, Fisheries and Forestry (DAFF). Manages biosecurity, checking that imports do not bring in pests or diseases.
  • Licensed customs broker. A professional licensed by the ABF to prepare and lodge declarations on your behalf.
  • Freight forwarder. Organises the shipment and often provides customs brokerage as well.
  • Cargo terminal operator. Holds your goods at the airport until they are cleared and released.

The AUD 1,000 threshold

The most important number in Australian import clearance is AUD 1,000.

Goods valued at AUD 1,000 or less

Low-value air cargo is usually cleared through a Self-Assessed Clearance (SAC) declaration. Often, the airline or forwarder that reports the cargo lodges it as part of the cargo report, so the importer does not need to lodge anything separately. In most cases, no duty or import processing charge applies. However, goods can still be subject to biosecurity checks, and prohibited or restricted items still need permits.

GST on low-value goods sold to consumers is generally collected by the overseas seller or marketplace at checkout, rather than at the border.

Goods valued above AUD 1,000

Shipments above this value need a full import declaration lodged in the ABF's Integrated Cargo System. Duty, GST and government charges must be paid before the goods are released. Most importers use a licensed customs broker for this step.

Documents you will need

  • Commercial invoice showing the seller, buyer, detailed description, quantity, unit price, total value, currency and Incoterm
  • Packing list showing pieces, weights and dimensions
  • Air waybill, both master and house numbers if the shipment is consolidated
  • Certificate of origin or origin declaration, if claiming a free trade agreement rate
  • Permits or approvals for regulated goods
  • Biosecurity documents, such as treatment certificates or packing declarations, where required
  • Australian Business Number (ABN), if importing for a business

Send these to your broker before the flight lands. Early documents are the best defence against delays and storage charges. Our guide to storage fees at Sydney air cargo terminals shows how quickly charges can build up.

Tariff classification

Every imported item must be classified under the Australian customs tariff, which is based on the international Harmonized System. The classification determines the rate of duty, whether any concessions apply and whether the goods are controlled.

Classification can be tricky. A product's material, function and how it is sold can all affect the code. For new products, ask your broker to confirm the classification before the first shipment. Accurate product descriptions on the invoice make this much easier.

How duty and GST are calculated

Customs value

Duty is usually calculated on the customs value of the goods, converted to Australian dollars. This is generally the price paid for the goods, with adjustments in certain situations.

Customs duty

Many goods enter Australia duty-free, and the Australian Government has removed hundreds of low-revenue tariffs in recent years. Where duty applies, the general rate for many manufactured goods is 5 per cent. Free trade agreements with countries including the United States, China, Japan, Korea, the United Kingdom and members of ASEAN can reduce duty to zero for goods that meet the origin rules.

GST

GST of 10 per cent is charged on the value of the taxable importation. This includes the customs value, any duty and the cost of international transport and insurance to Australia. GST-registered businesses can usually claim this back as an input tax credit, and eligible businesses can apply to defer GST on imports to their Business Activity Statement.

Government charges

An Import Processing Charge applies when a full import declaration is lodged, tiered according to the value of the goods and the method of lodgement. A biosecurity cost recovery charge is also collected on declarations. These charges are updated periodically, so check the current amounts on the ABF website.

Biosecurity: the most common cause of delay

Australia has some of the strictest biosecurity rules in the world, designed to protect agriculture and the environment. Every import is assessed, whether it arrives in a small carton or on a full pallet.

Before importing, check the Biosecurity Import Conditions system (BICON) for your product. It tells you whether an import permit, treatment or inspection is needed. Pay particular attention to:

  • Timber packaging, such as pallets and crates, which must be treated and marked to international standards
  • Food, plant and animal products, which often need permits and certificates
  • Used goods, such as machinery and vehicles, which must be free of soil and contamination
  • Packing materials such as straw, which may need treatment

Goods referred for inspection may be moved to an approved facility, adding time and cost.

Prohibited and restricted goods

Some goods cannot be imported at all, while others need a permit or approval from a government agency. Examples include certain weapons, some medicines, products containing asbestos, and some chemicals. Our guide to prohibited and restricted air freight items in NSW covers these in more detail.

The clearance process step by step

  1. The airline reports the cargo to the ABF before arrival.
  2. Your broker receives the documents and prepares the import declaration.
  3. The declaration is lodged in the Integrated Cargo System.
  4. The ABF assesses duty, GST and charges, and flags any compliance or biosecurity checks.
  5. You pay the amounts due, usually through your broker.
  6. Biosecurity clearance is completed, including any inspection.
  7. The goods are cleared, and the terminal releases them for collection.
  8. Your forwarder or transport company delivers the cargo.

With good preparation, clearance for straightforward air cargo can happen within hours of arrival. To follow each step as it happens, see our guide to air freight tracking tools for Sydney importers.

Common mistakes new importers make

  • Vague invoice descriptions such as "gift", "samples" or "parts"
  • Undervaluing goods, which can lead to penalties
  • Untreated timber pallets
  • Missing certificates of origin when claiming free trade agreement rates
  • Not checking BICON before ordering
  • Sending documents after the flight has already landed

Record keeping

Importers must keep commercial documents relating to their imports, generally for at least five years. These records support your declarations if the ABF conducts an audit or if you need to claim a refund.

Choosing a customs broker

A good customs broker does more than lodge forms. They help you classify products, identify free trade agreement savings, prepare for biosecurity requirements and deal with the Australian Border Force if questions arise. When choosing one, check that they hold a current licence, ask about their experience with your type of goods and find out how they communicate updates.

Many freight forwarders in Sydney have licensed brokers on staff, which can make the process smoother because transport and clearance are handled together. Our guide to choosing an air freight forwarder in Sydney includes questions to ask about customs capability.

A simple example

Suppose a Sydney business imports AUD 8,000 worth of kitchen equipment by air from Europe, with international freight and insurance of AUD 900. If the goods attract 5 per cent duty and no free trade agreement applies, duty would be AUD 400. GST would then be calculated on AUD 8,000 plus AUD 400 plus AUD 900, giving AUD 930. The import processing and biosecurity charges would be added, along with the broker's fee. A GST-registered business can usually claim the GST back as a credit, but it still needs the cash to pay at the border.

Frequently asked questions

What if I disagree with the duty assessed?

You can ask your broker to review the classification and valuation. If an error was made, an amendment or refund application can be lodged with the ABF.

Do I have to use a customs broker?

You can lodge your own declarations if you register for access to the Integrated Cargo System, but most businesses find a broker saves time and reduces errors.

How long does customs clearance take?

For simple shipments with complete documents, clearance can take a few hours. Biosecurity inspections, permits or classification questions can extend this to several days.

After your first few shipments, the process becomes familiar, and many importers find clearance quick and predictable.

Clearing with confidence

Australian customs rewards preparation. Check biosecurity and permit rules before you order, provide accurate invoices, work with a licensed broker and send documents early. For more on importing through the city's airports, read our main Air Freight Sydney guide.