How Import Duty and GST Are Calculated in Australia

20 October 2026 · Freight Guides
Parcel with a customs declaration label – customs clearance for imports

When your goods arrive in Australia, you may need to pay customs duty and GST before they’re released. Understanding how these are worked out helps you price your products properly and avoid surprises.

Goods worth AUD 1,000 or less

For most goods with a value of AUD 1,000 or less, no duty or GST is collected at the border, and a full import declaration isn’t needed. Tobacco and alcohol are exceptions. GST on low-value goods bought online is usually charged by the overseas seller at checkout instead.

Above AUD 1,000, a full import declaration must be lodged, usually by a licensed customs broker, and duty and GST are calculated as below.

Step 1: The customs value

The customs value is usually the price you paid for the goods, converted to Australian dollars using the exchange rate on the day they were exported. In most cases this is the FOB value, which excludes international freight and insurance.

Step 2: Customs duty

Duty is a percentage of the customs value. The rate depends on the tariff classification of your goods. Many goods are duty-free, and the most common general rate is 5%.

If your goods come from a country with a free trade agreement, such as China, India, Malaysia, Singapore, Thailand or the USA, the duty rate may be reduced to zero, as long as you have the correct origin documents. See our country guides for the details.

Step 3: GST

GST is 10%, but it isn’t charged on the customs value alone. It’s charged on the value of the taxable importation, which adds together:

  • the customs value
  • customs duty
  • the cost of international transport and insurance to Australia
  • any wine equalisation tax, if applicable

A worked example

Item Amount
Customs value (FOB) $20,000
Duty at 5% $1,000
International freight and insurance $2,000
Value of the taxable importation $23,000
GST at 10% $2,300
Total duty and GST $3,300

If the same goods qualified for a free trade agreement, duty would be $0, and GST would be 10% of $22,000, or $2,200.

Other charges to budget for

  • Import processing charge: a government fee on each import declaration
  • Biosecurity fees: for document assessment, inspection or treatment if required
  • Customs broker and forwarder fees: for preparing and lodging your entry
  • Port and terminal charges: for handling the container or cargo in Australia
GST-registered businesses can usually claim import GST back as a credit on their BAS. Under the ATO’s deferred GST scheme, approved importers can also defer paying it until their BAS is due, rather than paying it at the border.

Let us work it out for you

Duty depends on the exact classification of your goods, so it’s worth checking before you order. Our customs clearance team works with licensed customs brokers to classify your goods correctly and confirm what’s payable. Ask us for an estimate.

Need help with your next shipment?

Talk to the Fastrak team about sea freight, air freight, customs clearance or delivery anywhere in Australia.

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