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HS Codes Explained: How to Find the Right Code for Your Shipment

April 2026 · 6 min read · Guide

What Are HS Codes?

The Harmonized System (HS) is an international standardised system of names and numbers to classify traded products. Developed by the World Customs Organization, it's used by over 200 countries to identify goods crossing borders.

An HS code is a 6-digit number (minimum) that describes what a product is. Countries then add additional digits for more specificity — the US uses 10 digits (HTS codes), while Singapore uses 8 digits (STCCED codes).

Why HS Codes Matter

The HS code on your commercial invoice determines:

Using the wrong HS code can result in overpaying duties, underpaying duties (which triggers penalties), or having your shipment held for inspection.

How to Read an HS Code

The structure is hierarchical:

How to Find the Right HS Code

  1. Start with your product description. What is it made of? What is it used for? What material is it?
  2. Use Singapore Customs' search tool at customs.gov.sg — search by keyword
  3. Check the destination country's tariff database to verify the code is valid there
  4. Use the WCO's online tool for general classification guidance
  5. When in doubt, use a broader heading. It's better to use a correct general code than a wrong specific one.

Common HS Codes for Singapore Shippers

Tips

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