HS Codes (Harmonised System)

HS Codes, formally the Harmonised Commodity Description and Coding System, are the World Customs Organization's international standard for classifying traded goods. Every physical product crossing an international border is described by a six-digit HS code, and many countries extend this to eight or ten digits for national tariff purposes.

What are HS Codes?

The Harmonised System organises goods into 21 sections, 99 chapters, and then increasingly specific headings and subheadings, reaching the standard six-digit international code at the subheading level. For example, chapter 30 covers pharmaceutical products, and within it subheadings distinguish vaccines from antibiotics. Countries add further digits after the six-digit base to capture national tariff lines. The WCO updates the Harmonised System roughly every five years to reflect new technologies and trade patterns.

In procurement, HS codes appear most prominently when a tender requires imported equipment or goods, because bid documents often ask bidders to specify the HS classification for customs valuation and duty calculation purposes. They also feed into import licensing, rules-of-origin assessments, and the calculation of domestic-preference margins on goods in some MDB-financed contracts. Unlike unspsc, which classifies what is being bought, HS codes classify the physical good for trade and customs purposes rather than for procurement routing.

Why HS Codes matter for bidders

Suppliers bidding on goods contracts that involve cross-border shipment need to know the HS codes for their products before they submit. The correct HS code determines import duty rates, shapes cost estimates in the financial proposal, and is required for customs clearance at destination. A wrong code can cause shipment delays, unexpected duties, and contract disputes over landed cost. For pharmaceutical, medical device, or ICT equipment suppliers bidding on international tenders, HS classification is also tied to import licensing requirements that must be cleared before delivery.

FAQ

Are HS codes the same as UNSPSC codes?

No. HS codes classify physical goods for customs and trade purposes and are maintained by the World Customs Organization. UNSPSC codes classify both products and services for procurement matching and are maintained by GS1 US under UN oversight. The two systems serve different functions and do not map directly to each other.

How many digits is a standard HS code?

The international standard is six digits. Countries extend this to eight or ten digits for their national tariff schedules, so the full code used in customs declarations varies by country.

Where do HS codes appear in a tender document?

HS codes typically appear in the technical specifications or bill of quantities for goods contracts, in customs clearance clauses, and sometimes in duty exemption letters that an MDB borrower issues on behalf of a contractor importing equipment tax-free under a project agreement.