GlossaryEN1 min readUpdated: Jun 8, 2026
Customs tariff numbers
Customs tariff numbers are eight-digit codes (or longer in regional extensions) that classify goods worldwide according to the Harmonized System (HS) administered by the World Customs Organization (WCO), determining applicable duties, taxes, and trade restrictions.
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Source: https://www.wco.org
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Customs tariff numbers are eight-digit codes (or longer in regional extensions) that classify goods worldwide according to the Harmonized System (HS) administered by the World Customs Organization (WCO), determining applicable duties, taxes, and trade restrictions. Freight forwarders and customs officials rely on these codes to establish tariff rates, calculate duties, assess statistical data, and enforce import/export regulations. The EU's TARIC system (Integrated Tariff) extends HS codes to ten digits, incorporating additional national and EU-specific provisions. Misclassification can result in duty adjustments, penalties, or cargo detention.
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