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Singapore Customs

Harmonised System Classification of Goods

Learn how to classify your goods under the Harmonised System (HS), apply for an official Customs ruling to confirm the correct HS classification for your goods, and use tools to ensure accurate and consistent declarations.

Last updated 30 January 2026

Understanding HS Classification

Learn what the Harmonised System is, how goods are classified using the General Interpretative Rules, and how the ASEAN Harmonised Tariff Nomenclature supports uniform classification across ASEAN.

Find my Harmonised System Code

Find the correct HS code for your products in Singapore. Access the HS/CA Product Code Checker, Traders’ Product Guide, Customs Ruling Database, and guidance on requesting an official ruling.

Classifying My Products

Learn how to classify your products using Harmonised System codes.

Application for Customs Ruling on Classification of Goods

Apply for an official customs ruling to confirm the HS code of your product. Learn about how to apply, the fee and the validity of the ruling.