Customs & Duties
HS Codes & Tariff Headings Explained
Every product you import is classified under an HS code, and that code sets your duty rate, your permit requirements and your VAT treatment. Getting it wrong is one of the most expensive mistakes in importing. Here’s how classification works.
What an HS code is
The Harmonised System (HS) is an international classification of goods maintained by the World Customs Organization. Every product fits under a tariff heading, expressed as a numeric code. The first six digits are standard worldwide; South Africa adds further digits in its own tariff to set local duty rates and statistics.
How the tariff heading sets your duty
Your HS code points directly to a line in the South African Customs and Excise tariff, and that line states the duty rate. Two similar-looking products can sit under different headings with very different rates — so the code isn’t a formality, it’s the single biggest factor in what you’ll pay.
Why it matters
The code sets the cost
Your HS / tariff heading decides:
• The customs duty rate on the goods
• Whether import permits or LOAs apply
• Whether a SADC or other trade preference is available
• What goes on your SAD500 declaration
More than just duty
Classification also drives whether your goods need an import permit, an NRCS Letter of Authority, or other regulatory approval, and whether a trade-agreement preference is available. The same code feeds the SAD500 declaration. Getting it right at the start keeps the whole clearance clean.
Why classification goes wrong
Tariff classification is genuinely technical — it follows legal rules of interpretation, not just product names. Importers often self-classify on a best guess, which risks underpaying (and penalties) or overpaying duty. Composite and new-technology products are especially easy to misclassify.
Getting a determination
Where the correct heading isn’t clear, you can apply to SARS for a tariff determination that fixes the classification with certainty. For regular importers it’s worth getting the key products determined up front. We classify goods and handle determinations as part of our customs work.
Related service
Customs Registration Services
Before you can import, you need a registered Importers Code and the right SARS registrations. Atrax sets all of this up for you and clears your cargo end to end.
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