An HS code (Harmonized System code) is a standardised 6-digit number used by customs authorities worldwide to classify traded goods. Every product imported or exported across a border must be assigned an HS code to determine the applicable duty rate, import restrictions, and trade statistics. The system is maintained by the World Customs Organization (WCO) and used by over 200 countries.

Enter a description of your product in the lookup tool above. The AI analyses the product characteristics and matches them against the Harmonized System schedule using the General Rules of Interpretation (GRI). You'll receive the top-3 most likely HS codes with confidence scores, duty rates for EU, US, and UK, and an explanation of why each code applies.

The first 6 digits are internationally standardised — identical in every country. Beyond 6 digits, countries add their own extensions: the EU uses 8-digit CN codes, the US uses 10-digit HTS codes, and the UK uses 10-digit commodity codes under the UK Global Tariff. When classifying for a specific market, you need the full national code, not just the 6-digit HS code.

An HS code is the international 6-digit base code maintained by the World Customs Organization. An HTS code (Harmonized Tariff Schedule code) is the US-specific 10-digit extension used by the USITC. The first 6 digits of an HTS code always match the corresponding HS code — the extra 4 digits are used to set specific US duty rates and track trade statistics.

The WCO revises the Harmonized System every 5 years. The most recent revision was HS 2022 (effective January 1, 2022), which added new headings for electric vehicles, smartphones, and other modern products. Individual countries may also update their national extensions more frequently. Always verify your code against the current edition of the tariff schedule.