HS Code
The Harmonized System (HS) Code is the international numeric classification of traded products, maintained by the World Customs Organization (WCO). It is the foundation of every customs entry, trade statistic, tariff schedule and free-trade agreement worldwide.
The HS structure has 6 digits internationally standardised, then countries add their own digits for national tariff and statistical detail. For example, the EU uses 8-digit CN codes, the US uses 10-digit HTS codes, India uses 8-digit HSN codes. The first 6 digits are the same everywhere — chapters (e.g., 84 = nuclear reactors, boilers, machinery), headings (e.g., 8471 = automatic data processing machines), and sub-headings (e.g., 8471.30 = portable ADP machines).
Correct HS classification is the most consequential single decision in customs filing: it determines the duty rate, controls regulatory requirements (DG, FDA, agriculture), and triggers preferential treatment under FTAs. Misclassification penalties can be severe.
HS classification is the single most consequential decision in a customs entry. It sets the duty rate, triggers regulatory controls (dangerous goods, food, agriculture), and decides whether goods qualify for preferential treatment under a free-trade agreement. Misclassify and you over- or under-pay duty and risk real penalties.
Code 8471.30 reads as: chapter 84 (machinery), heading 8471 (automatic data-processing machines), sub-heading 8471.30 (portable ADP machines — i.e. laptops). A US importer would extend it to a 10-digit HTS code for the exact duty line.
How many digits is an HS code?
Six digits are internationally standardised by the WCO. Countries add more for national detail — the EU uses 8-digit CN codes, the US 10-digit HTS codes, India 8-digit HSN.
What happens if I misclassify goods?
You may pay the wrong duty, miss regulatory requirements, or lose free-trade-agreement benefits — and face penalties for the error. Correct classification is critical, which is why customs software and brokers focus on it.