Total Landed Cost for Australian Imports: The 8-Layer Formula

Most importers get the freight quote. Many also factor in the duty rate. A smaller number correctly calculate GST. And almost none of them model all eight cost layers that sit between the supplier’s invoice and the goods arriving at their Australian warehouse.

The mental model that produces consistently wrong landed costs treats “freight + duty” as the total. The actual formula has more terms. Each additional term is small by itself, but together they add 8–18% to the naïve freight-plus-duty estimate on a typical consignment. The additions include customs brokerage, terminal handling, and the biosecurity levy. Get the model wrong and the import becomes less profitable than projected. Get it right on every shipment and the margin improvement compounds.

The Landed Cost Formula

Landed cost for Australian imports = the sum of all costs incurred between the supplier’s door in the origin country and your warehouse door in Australia:

1. Customs Value (CIF): the base for duty and GST calculations
2. Import Duty: levied on customs value at the applicable tariff rate
3. GST (10%): applied to customs value plus duty
4. Customs Brokerage: fees for lodging your import declaration
5. Port Terminal Handling Charges (THC): charged by the shipping line at destination port
6. Wharfage / Stevedoring: port operator charges for container handling
7. Biosecurity Import Levy: DAFF levy on commercial imports
8. Last-Mile Delivery: port to your warehouse

Origin costs (supplier packaging, collection, export freight to the origin port) don’t appear as a separate layer in the Australian landed cost calculation. They’re already embedded in the CIF customs value.

Layer 1: Customs Value

Australia uses the CIF (Cost, Insurance, Freight) method to determine customs value. The customs value is:

Customs Value = Invoice price of goods + International freight cost + Insurance cost

This means freight is included in the base on which duty and GST are calculated. If your goods have an invoice value of AUD 20,000 and you paid AUD 2,000 in international freight and AUD 200 in insurance, your customs value is AUD 22,200. Duty and GST are calculated on that AUD 22,200, not on the AUD 20,000 invoice.

This is the most commonly misunderstood aspect of Australian customs valuation. Importers who model duty on the invoice value alone underestimate their duty and GST liability by 8–12% on typical freight-to-goods-value ratios.

Layer 2: Import Duty

Import duty is levied on the customs value at the tariff rate applicable to your goods’ HS code. The standard MFN (Most Favoured Nation) rate for common goods is:

FTA preferential rates require proof of origin, but the form differs by agreement. For China: a certificate from CCPIT or CIQ. For the USA: self-certification by the exporter or importer, with no third-party body involved. For ASEAN countries: relevant national trade body (e.g., the Vietnam National Chamber of Commerce and Industry, or VCCI). The CoO must be requested before or at shipment loading. It cannot be backdated after the vessel sails.

If you don’t present a CoO at the time of import declaration, the MFN rate applies by default. On a AUD 100,000 shipment of clothing from China, the difference between ChAFTA 0% and MFN 5% is AUD 5,000 in duty, plus GST on that duty. Certificate of origin management is not a paperwork formality; it is a direct cost lever.

Layer 3: GST (10%)

Australia’s Goods and Services Tax applies to all taxable importations. The GST base for imports is:

GST Base = Customs Value + Import Duty

GST Rate = 10%

If your customs value is AUD 22,200 and import duty is AUD 1,110 (5%), GST is:

10% × (AUD 22,200 + AUD 1,110) = 10% × AUD 23,310 = AUD 2,331

Under ChAFTA with 0% duty on the same AUD 22,200 customs value:

10% × (AUD 22,200 + 0) = AUD 2,220

The FTA rate saves AUD 1,110 in duty and reduces the GST base, saving an additional AUD 111 in GST. The CoO saves a total of AUD 1,221 on this consignment.

GST paid at import is generally claimable as an input tax credit by GST-registered Australian businesses: you pay it at the border and recover it on the next BAS period (Business Activity Statement). That timing is the relevant operational consideration, not whether GST is a net cost (for GST-registered businesses, it typically isn’t).

Layer 4: Customs Brokerage

A licensed customs broker prepares and lodges your Import Declaration with ABF. They also calculate and pay duty and GST on your behalf and arrange release of your cargo. This is not optional. Goods cannot clear the Australian border without an import declaration, and only licenced brokers can lodge declarations for commercial importations.

Standard brokerage fees:

• Sea freight FCL import entry: AUD 150–400 per declaration
• LCL / air freight import entry: AUD 100–300 per declaration
• Classification advice (if needed): AUD 100–250 per HS code ruling
• Examination attendance (if ABF or DAFF examines the goods): AUD 100–300 additional

These fees are separate from duty and GST. The broker collects those at cost and remits to ABF. They then recover the amount from you.

Layer 5: Terminal Handling Charges (THC)

Destination THC is charged by the shipping line for moving the container from the vessel to the port terminal yard. It is not included in ocean freight rates despite being inevitable. Standard destination THC at Australian ports:

• Port Botany (Sydney): AUD 300–450 per 20ft TEU; AUD 450–650 per 40ft FEU
• Port of Melbourne: AUD 280–430 per TEU; AUD 420–620 per FEU
• Port of Brisbane: AUD 270–420 per TEU; AUD 400–600 per FEU
• Fremantle (Perth): AUD 260–400 per TEU; AUD 380–560 per FEU

For LCL shipments, a destination CFS (Container Freight Station) deconsolidation fee applies instead: typically AUD 20–50 per CBM.

Layer 6: Wharfage

Port operators levy wharfage charges on cargo moving through their terminals. In Australia, this is primarily the stevedore/terminal operator charge, separate from shipping line THC. Wharfage is typically levied per tonne of cargo or per TEU, and varies by terminal operator (DP World, Hutchison Ports, Patrick Terminals). For budgeting, AUD 50–150 per TEU equivalent is a reasonable estimate. Your broker or freight forwarder will confirm the specific rate for your port and terminal.

Layer 7: Biosecurity Import Levy

The Department of Agriculture, Fisheries and Forestry (DAFF) administers the Biosecurity Import Levy on commercial goods entering Australia above the de minimis threshold. The levy is charged per import declaration entry line. It’s separate from any inspection fees, which apply only if your goods are selected for biosecurity examination.

Current levy rates are set under the Biosecurity (Charges) Act 2014. For most commercial importers, the levy is a minor per-shipment cost, typically AUD 10–40 per consignment depending on the number of entry lines. It is not optional and not waivable. Australia’s biosecurity import conditions are enforced at the border regardless of this levy (including ISPM 15 timber packaging compliance). Treatment costs for non-compliant packaging are additional and separate.

Layer 8: Last-Mile Delivery

Port to your warehouse is the final cost layer. Costs vary by port and delivery distance:

• Port Botany to Sydney metro warehouse: AUD 350–600 per 20ft container
• Port of Melbourne to Melbourne metro warehouse: AUD 300–550 per 20ft
• Container unpack / devanning (if required): AUD 150–350 depending on volume
• LCL delivery (per CBM, metro): AUD 25–60 per CBM

The De Minimis Threshold: AUD 1,000

Goods with a customs value at or below AUD 1,000 are generally exempt from import duty and the formal import declaration requirement. This applies to individual consignments. Splitting a larger order into multiple sub-AUD 1,000 consignments to avoid duty is considered duty avoidance and is not a lawful strategy.

Note that GST applies to low-value imports from overseas sellers under the Low Value Imports framework (in force since July 2018). Under this regime, overseas sellers with AUD 75,000+ in Australian annual sales must register for and collect Australian GST at the point of sale. Some goods clear below AUD 1,000 with GST already collected by the overseas seller. These goods may not have additional GST collected at the border, but they are not GST-free. The mechanism shifts, not eliminates, the GST obligation.

Worked Example 1: Electronics from China (FCL, ChAFTA)

A 20ft FCL container of consumer electronics imported from Shenzhen to Sydney, with a ChAFTA Certificate of Origin:

Without the ChAFTA CoO (MFN 5% duty on electronics), this shipment would incur an additional AUD 4,152 in duty and AUD 415 in GST on that duty: AUD 4,567 more per consignment. At 10 consignments per year, that’s AUD 45,670 of avoidable cost.

Worked Example 2: Health Supplements from the USA (Air Freight, AUSFTA)

500 kg of TGA-listed health supplements imported by air from Los Angeles to Melbourne, with an AUSFTA origin declaration:

The same unmodelled gaps that wreck a landed-cost estimate are what get shipments held at the Australian border. Confirm the HS code and country-of-origin FTA eligibility before placing the order, not after the freight quote arrives.

Frequently Asked Questions

What is landed cost and how do I calculate it for Australian imports?

Landed cost = Customs Value (CIF) + Import Duty + GST + Customs Brokerage + THC + Wharfage + Biosecurity Levy + Last-Mile Delivery. Customs value uses the CIF method: goods invoice value plus international freight plus insurance. Duty and GST are calculated on this base.

How is GST calculated on imports to Australia?

GST (10%) is applied to customs value plus import duty. For 0% duty goods (FTA or MFN), GST is 10% of customs value alone. For 5% duty goods, GST is 10% of (customs value + 5% duty). GST paid at import is recoverable as an input tax credit for GST-registered businesses.

What is Australia’s de minimis threshold?

AUD 1,000. Goods at or below this customs value are generally exempt from import duty and the formal declaration requirement. GST may still apply via the overseas seller under the Low Value Imports framework. The AUD 1,000 threshold exempts duty, not necessarily GST.

How do FTA certificate of origin requirements affect my landed cost?

Proof of origin unlocks the FTA preferential rate: 0% under ChAFTA, AUSFTA, or AANZFTA for most goods. ChAFTA and AANZFTA need a certificate from an authorised issuing body; AUSFTA is self-certified. Without it, the MFN rate applies. A third-party certificate must be requested at or before shipment loading, because it cannot be backdated.

What is the biosecurity import levy?

A DAFF levy on commercial imports above the de minimis threshold. Charged per import declaration entry line, currently a minor per-entry cost. It funds biosecurity inspection infrastructure and applies regardless of whether goods are inspected.

Getting Your Landed Cost Model Right

Import duty and GST explained for Australian importers covers the tax calculation mechanics. Australia’s biosecurity import conditions affect all imported goods and add treatment costs for non-compliant packaging. Both are factors in an accurate landed cost model.

Swift Cargo assesses landed cost as part of the freight quoting process. This covers all eight cost layers, FTA duty savings where applicable, and customs clearance coordination for your product category.