HS code
Also known as: Harmonized System code, Tariff code, Commodity code
The international six-digit classification code that customs authorities use to identify every traded product.
The Harmonized System (HS) is a standardised six-digit numerical classification of traded products administered by the World Customs Organisation. Used by 200+ countries as the basis for their import tariffs and trade statistics. Countries extend the six-digit base to 8 digits (EU CN8, UK Global Tariff) or 10 digits (US HTSUS, China HSC) for national-level detail. Every commercial customs entry must declare an HS code; misclassification triggers duty assessment, penalties, and sometimes seizure.