HS Code (Harmonized System Code)
The HS Code is the World Customs Organization's globally harmonized product classification number that determines duty rates, regulatory requirements, and preferential origin eligibility.
The HS Code (Harmonized System) is a product classification system created by the World Customs Organization (WCO) and used by 200+ countries. The first six digits are internationally common; each country extends them—China uses a 10-digit customs commodity code for export declaration, and the US uses 10-digit HTS codes for imports. The code a product falls under directly determines its import/export duty rate, VAT, required regulatory licenses, inspection and quarantine rules, and whether it qualifies for preferential tariffs under free-trade agreements.
Classification follows the General Rules of Interpretation (GRI) and section/chapter notes, judged by material, use, degree of processing, and composition rather than name alone. The same product may fall into different codes depending on the dimension assessed, making classification both technical and a compliance focal point. Before exporting, confirm the China export code and verify the corresponding import-country code with the buyer or destination customs (the first six digits match; later digits may differ).
For Chinese exporters, HS misclassification is a frequent risk: errors can produce wrong VAT-rebate amounts, forfeited preferential treatment, or—if customs deems it under-declaration—back duties, penalties, or cargo holds. The HS Code is also the basis for issuing certificates of origin, calculating duty, and checking exposure to anti-dumping duties or trade controls, so it must be identical across the commercial invoice, packing list, customs declaration, and certificate of origin.
FAQ
- Must the import country's HS code match the one we declare for export?
- The first six digits are globally uniform and must match; beyond six digits each country sub-divides differently. Before quoting and clearing, confirm the import country's actual classification with the buyer, because the import duty is set by the destination customs' code, not the China export code.
- What happens if the HS code is wrong?
- At best you get wrong VAT-rebate figures or miss preferential duties; at worst customs treats it as under-declaration, leading to back duties, fines, demurrage, or a compliance blacklist. For complex or high-value goods, seek an advance classification ruling or consult a licensed customs broker.
- How do I determine the right HS code for my product?
- Apply the GRI together with material, function, use, and composition; consult China's customs tariff schedule, ask a broker, or request an advance ruling for difficult items. Never classify by product name alone, to avoid disputes.
Sources: https://www.wcoomd.org/en/topics/nomenclature/overview/what-is-the-harmonized-system.aspx · http://english.customs.gov.cn/