Australia Import Duty and GST: Rates, Customs Value and Calculation

Quick Answer: Two Separate Charges, Different Bases

Importing into Australia can involve two distinct charges. Customs duty is set by the tariff classification of the goods and their origin, with rates varying by product and a preferential rate possible under a free trade agreement. Separately, GST at 10% applies to taxable importations, calculated on the customs value of the goods plus any duty payable plus the cost of transporting and insuring the goods to Australia.

GST on Taxable Importations

The Australian Taxation Office sets out that GST is payable on most goods imported into Australia, at 10% of the value of the taxable importation. The ATO states that the value of a taxable importation is the sum of the customs value of the goods, any customs duty payable, the amount paid or payable to transport the goods to their place of consignment in Australia, the insurance cost for that transport, and any wine tax payable.

The ABF is responsible for calculating and collecting GST on imported goods, and GST is generally payable before the goods are released unless deferred. GST-registered importers may be able to participate in the deferred GST scheme, which allows payment to be deferred to the first activity statement lodged after import, subject to eligibility criteria.

Customs Value and Duty

Customs duty is determined under the Customs Tariff Act by reference to the tariff classification and origin of the goods. Rates vary by product — they are not a single flat figure — and preferential rates may apply where the goods qualify under a free trade agreement such as ChAFTA and valid origin documentation is provided.

The Calculation Model

Worked Example

The figures below are illustrative only, to show how the layers stack — they are not a quote and not a rate for any specific product.

Actual figures depend on classification, origin, the confirmed customs value and any concession or preference that applies. Where duty is reduced under ChAFTA, the GST base falls slightly too, because duty forms part of the taxable importation value.

Exemptions and Special Cases

Some imported goods are not subject to GST. The ATO notes these include goods that would have been GST-free or input taxed if supplied within Australia — such as basic food and certain medical aids — as well as goods qualifying for certain customs duty concessions. The definitions and criteria are detailed, so the treatment of a specific commodity should be confirmed against the legislation or with the relevant authority.

How ChAFTA Changes the Arithmetic

Where goods qualify for preferential tariff treatment under ChAFTA and valid origin documentation is provided, the customs duty component can be reduced or removed. Because the value of the taxable importation includes customs duty, a lower duty also slightly reduces the GST base. The GST itself does not disappear. On a shipment where duty would otherwise be a meaningful line, the combined effect is worth modelling properly rather than approximating — see our ChAFTA guide for how origin qualification works.

Deferred GST Scheme

The ATO notes that importers registered for GST may be able to defer payment of GST on taxable importations until the first activity statement lodged after the goods are imported, subject to meeting the eligibility criteria. This is a cash-flow mechanism rather than an exemption: the GST is still payable, just on a later date. For businesses importing regularly, it changes when money leaves the business rather than how much.

Reclaiming GST on Imports

Businesses that are registered for GST and import goods for use in their enterprise may be able to claim a GST credit for the GST paid on those imports. Entitlement depends on the importation being a creditable importation, which turns on factors including whether the goods are imported for a creditable purpose and whether the business is registered or required to be registered. The import documentation is the evidence base for the claim, so document accuracy matters twice — once at clearance and once at claim time.

What to Confirm Before Quoting or Budgeting

Before committing to a landed-cost figure, confirm four things: the HS code for each product line; the customs value basis; whether the goods qualify for preferential tariff treatment and what documentation proves it; and whether any concession, exemption or special treatment applies. These inputs drive the duty and GST figures far more than the freight rate does on most mid-value shipments.

Official Sources Consulted

• Australian Border Force (ABF) — importing, customs and cost of importing goods
• Australian Taxation Office (ATO) — GST and imported goods

Related Resources

• China to Australia Shipping Guide
• Australia Customs Clearance
• ChAFTA Certificate of Origin