HS Codes Explained: How to Classify Your Product and Stop Overpaying Duty

Most founders meet their HS code in a panic. The freight is on the water, the customs broker asks for a tariff classification, and the founder forwards whatever number was printed on the factory's proforma invoice. Two weeks later the duty bill lands higher than the budget allowed.

It is a small piece of admin with a large price tag. Classify correctly and goods from China or India can land at zero duty. Classify badly and you either overpay on every order for years, or Customs comes back for the difference plus penalties.

Here is how to get it right before you place the order.

What is an HS code?

An HS code is the number that tells customs what your product is. HS stands for Harmonised System, a classification maintained by the World Customs Organization and used by around 200 countries. Your code decides three things: the rate of duty you pay, whether you can claim a free trade agreement, and whether your goods need a permit.

The part most founders miss is who owns it. In Australia the importer is legally responsible for the classification declared to the Australian Border Force. Not the factory. Not the freight forwarder. Not the customs broker, even though the broker types it in. If the code is wrong, the liability sits with you.

How many digits is an Australian HS code?

Ten.

• Digits 1 to 6 are the international HS code. Identical in Australia, China, India, the US and everywhere else.
• Digits 7 and 8 are the Australian tariff subheading. This is the part that sets your duty rate.
• Digits 9 and 10 are a statistical code used by the Australian Bureau of Statistics. No effect on duty.

So when a factory sends you a six digit code, they have given you the international part only. The two digits that decide what you pay are missing, and those are the ones set by Australian law.

Why you cannot just use the code your factory gives you

The number on your proforma invoice was chosen for Chinese or Indian export clearance. It was chosen to make the exporter's paperwork easy, sometimes to qualify for an export rebate, and nobody at the factory has read the Australian Customs Tariff.

We see three versions of this go wrong:

• The code is for a component, not the finished good. A factory that mostly makes stainless steel parts classifies your finished drink bottle as an article of steel.
• The code describes the material, not the function. A cotton tote can sit in Chapter 42 as a travel bag or Chapter 63 as a made up textile article, depending on how it is constructed and what it is designed to carry. Different chapters, different consequences.
• The code is right for a sample, wrong for the run. You changed the lining, the closure or the fill, and the classification moved with it.

Treat the factory's code as a starting hint. Nothing more.

How do you find the right HS code for your product?

Work in this order. Material first, then function, then construction.

1. Find the chapter. Chapter 39 is plastics, 42 is leather goods and bags, 61 and 62 are apparel, 63 is other made up textiles, 69 is ceramics, 73 is articles of iron and steel, 94 is furniture and lighting, 95 is toys and games. Most consumer products land in one of these.
2. Read the chapter notes, not just the headings. The notes at the top of each chapter tell you what is excluded. Half of all classification errors are caught here.
3. Pick the heading by what the product essentially is. If a product is made of several materials, the rule is the material or component that gives it its essential character.
4. Go down to the eight digit Australian subheading. Search the Working Tariff on the ABF site. Two subheadings that read similarly can carry different rates.
5. Write down why. One paragraph, saved with your supplier file. If you are ever audited, a documented reason is worth more than a correct guess.

If two codes both look defensible, that is a signal, not a coin toss. Go to the free ruling described below.

What duty will you actually pay?

Most manufactured consumer goods carry a general rate of 5 per cent. A large and growing list carries zero. The government abolished 457 so called nuisance tariffs on 1 July 2024 and has consulted on removing roughly 500 more, so a rate you looked up two years ago may no longer be current. Check it again each time you reorder.

Then there is the calculation itself, and this is where most online guides are wrong.

Australia calculates the customs value on an FOB basis. Your international freight and insurance are not in the duty base. They are added later, for GST only. The GST is charged on the Value of Taxable Importation, which is customs value, plus duty, plus transport and insurance.

Worked example. 5,000 stainless drink bottles from China.

• FOB price AUD 4.10 per unit, so a customs value of AUD 20,500
• Sea freight and insurance AUD 2,600
• Duty at the general 5 per cent rate: AUD 1,025
• Value of Taxable Importation: 20,500 + 1,025 + 2,600 = AUD 24,125
• GST at 10 per cent: AUD 2,412.50
• Payable at the border: AUD 3,437.50

Now the part that changes how you should think about it. If you are registered for GST, that 2,412.50 comes back on your next BAS. It is a cash flow problem, not a cost. The duty never comes back. That AUD 1,025 is a permanent 20.5 cents on every bottle, and it belongs in your landed cost per unit before you set a wholesale price.

How do you get the duty to zero?

For most founders sourcing in Asia, you claim a free trade agreement.

China. Under ChAFTA, goods of Chinese origin enter Australia duty free. To claim it you need a Certificate of Origin issued by an authorised body in China, in practice the China Council for the Promotion of International Trade. One certificate covers one shipment, a maximum of 20 line items, and it is valid for one year.

India. Under the Australia India Economic Cooperation and Trade Agreement, in force since December 2022, Australia eliminated tariffs on Indian origin goods. Same principle, different certificate, issued by an Indian authorised agency.

Three things founders get caught by:

• The certificate must exist before clearance. Ask for it at the same time you approve the pre shipment inspection, not when the container is at the wharf. Retrospective claims are possible but they are a refund process, and refunds take months.
• Origin is not the same as the shipping port. Goods assembled in China from imported components may not qualify. The rules of origin for your specific tariff line decide it.
• The details on the certificate must match the invoice and the packing list. A different product description or a different quantity is enough for the claim to be rejected.

Budget around AUD 50 to 150 for the certificate. Most factories will arrange it. Almost none will do it unless you ask.

What if you genuinely cannot tell?

Apply for a Tariff Advice from the Australian Border Force. It is a binding ruling on how your specific goods are classified.

• The ABF charges nothing for it
• The service standard is 30 days, longer when they are busy
• Once given, it must be followed for those goods
• It is specific to goods from one manufacturer, so a factory change means a new application

You apply on Form B102, or your broker can lodge it electronically. Thirty days is nothing against a tooling lead time. Start it while your samples are being made.

Worth knowing alongside it: if no Australian manufacturer makes goods substitutable for yours, you may be able to use an existing Tariff Concession Order and pay zero regardless of your general rate. Ask your broker to check the TCO database against your classification.

A note on the AUD 1,000 threshold

Goods with a customs value of AUD 1,000 or less generally clear without duty and border GST. Founders sometimes read this as a strategy. It is not.

Deliberately splitting one order into multiple consignments to sit under the threshold is treated as an attempt to avoid duty. It also costs more in freight than the duty you saved. Your sample shipments will sit under the threshold naturally. Your production run will not.

Checklist before you place your order

• Get the factory's code, then verify it yourself against the Australian Working Tariff
• Confirm the full ten digit classification, not six
• Check the current rate. It may have moved since your last order
• Ask the factory in writing whether they can supply a Certificate of Origin, and get the cost
• Model your landed cost at the general rate as well as at zero, so a failed origin claim does not break your margin
• If two codes look equally right, lodge a Tariff Advice during sampling
• Save your classification reasoning with your supplier file

Classification is one of the few parts of importing where an hour of work at the right moment is worth thousands over a product's life. It is also one of the easiest to hand off badly, because the person typing the number into the declaration is rarely the person who knows what the product is.

That person is you.

Once you know your true duty position, the next decision is what to do with it. Pricing a product so wholesale still works is a different exercise, and Kristy covers it in How to Price a Product So Wholesale Doesn't Kill You.

Related reading: Incoterms Explained for who pays freight and duty in the first place, How to Import Products Into Australia for the wider clearance process, and China vs India if you are still choosing where to make it.