What is an HS code?
An HS code (Harmonized System code) is a standardized numeric method of classifying traded products, maintained by the World Customs Organization and used by more than 200 countries. Every physical good that crosses a border has one. The 6-digit code is universal; countries add further digits for their own tariff schedules.
The structure is hierarchical:
- Chapter (first 2 digits) — the broad category, e.g. 31 = fertilizers.
- Heading (next 2 digits) — the product group, e.g. 3102 = mineral or chemical nitrogen fertilizers.
- Subheading (final 2 digits) — the specific product, e.g. 3102.21 = ammonium sulfate.
Getting this right matters: the wrong HS code can trigger customs delays, incorrect duty charges, and misclassification penalties — and it determines which tariff rates and which buyers apply to your product.
Popular HS codes
| HS code | Product | Category | |
|---|---|---|---|
| 3102.21 | Ammonium sulfate | Fertilizers | |
| 3102.10 | Urea | Fertilizers | |
| 2833.22 | Aluminium sulfate | Inorganic chemicals | |
| 0901.11 | Coffee, not roasted | Coffee, tea & spices | |
| 6403.99 | Leather footwear | Footwear |
HS code FAQ
An HS (Harmonized System) code is a standardized 6-digit number used worldwide to classify traded products for customs, tariffs, and trade statistics. The first two digits are the chapter, the next two the heading, and the final two the subheading.
Type your product name into the finder at the top of this page. It matches your description against the Harmonized System catalog and returns the most likely 6-digit codes, which you can copy for customs paperwork.
Yes — completely free, no signup required. You only create an account when you want to find verified buyers for a given HS code.
Using the wrong code can cause customs delays, incorrect duty charges, and misclassification penalties. It also determines which buyers and tariff rates apply to your product.
You found the code. Now find the market.
Turn any HS code into a buyer or seller discovery search with contacts. Free to start.