What is an HS code?

An HS code (Harmonized System code) is a standardised 6-digit number used by customs authorities in over 200 countries to classify internationally traded goods. The system was developed by the World Customs Organization (WCO) and has been in use since 1988. The 6 digits are structured as: - First 2 digits: Chapter (e.g. 85 = Electrical machinery) - Next 2 digits: Heading (e.g. 8517 = Telephone sets) - Final 2 digits: Subheading (e.g. 851712 = Smartphones) Countries often add additional digits for local classification. The US uses 10-digit HTS codes; the EU uses 8-digit CN codes; the UK uses 10-digit Trade Tariff codes. Why it matters: The HS code determines your import duty rate. The wrong code can result in overpaying duties, shipment delays, or penalties from customs authorities. How to find your HS code: 1. Use our free HS Code Lookup — search by product name 2. Check your supplier invoice (often includes HS code) 3. Consult a licensed customs broker for complex products 4. Contact your country's customs authority for a binding ruling