HS Codes Explained: Classify Your Product Correctly the First Time

How Harmonized System codes are structured, how to classify step by step with the GRI rules, where to verify, and the traps that trigger customs penalties.

What the HS is

The Harmonized System is maintained by the World Customs Organization and used by more than 200 countries and economies. The first six digits are identical everywhere; countries then add their own digits (8, 10 or 12 in total) for tariff and statistical detail.

```

0904.11.xx

09 chapter — coffee, tea, maté and spices

0904 heading — pepper; capsicum/pimenta

0904.11 subheading — pepper, neither crushed nor ground

.xx national digits — country-specific duty line

```

Why one digit matters

The code drives:

A misclassification can mean back-duty, penalties, or cargo held at the border.

How to classify, step by step

  1. Describe the good objectively — what it is made of, what it does, how it is presented for sale.
  2. Find the chapter by material or function, then read the section and chapter notes — they exclude goods far more often than people expect.
  3. Apply the General Rules of Interpretation (GRI) in order. GRI 1 (terms of the headings and notes) settles most cases. GRI 3(b) — essential character — handles mixtures and sets. GRI 6 applies the same logic at subheading level.
  4. Check the destination country's national digits in its own tariff schedule; they differ even when the first six agree.
  5. Keep the reasoning — a one-paragraph note explaining why you chose the code is your defence in an audit.

Where to verify

Common traps

On Prebro

Products carry an HS code field, and it is what drives duty and landed-cost estimates in the deal room — so getting it right at listing time saves recalculation later.

*References: World Customs Organization, Harmonized System Nomenclature and General Rules of Interpretation.*

View on Prebro