An HSN Code (Harmonized System of Nomenclature) is a numerical code used in India to classify goods for GST and customs, based on the World Customs Organization’s Harmonized System.
An HSN Code (Harmonized System of Nomenclature) is a numerical classification code used in India to identify goods for GST and customs purposes. It is based on the internationally recognised Harmonized System developed by the World Customs Organization, which is used by most trading nations to classify products.
For buyers sourcing from India and for Indian suppliers, the HSN Code is a practical everyday tool: it determines the tax and duty treatment of a product and standardises how goods are described on invoices and customs documents. It is the Indian counterpart of the global HS Code.
The HSN Code assigns every product a standardised number so that customs and tax authorities, businesses and trading partners all classify it the same way. In India, the HSN Code is central to the Goods and Services Tax system: the code linked to a product determines the applicable GST rate. It also drives customs classification for imports and exports.
The HSN Code follows the global Harmonized System at its core and adds further national detail. It is commonly used at different levels of precision:
The number of digits a business must quote can depend on its turnover and the nature of the transaction.
The HS Code is the six-digit international standard maintained by the World Customs Organization and used for global trade classification, tariffs and statistics. India's HSN Code builds directly on the HS Code, keeping the first six digits aligned with the global standard and adding further digits for national purposes such as GST rates and customs duty. In practice, the two are consistent at the international level and diverge only in the extra national digits.
Using the correct HSN Code is essential because it determines the GST rate and the import duty or customs duty that applies to a product. An incorrect code can lead to the wrong tax being charged, invoicing errors, compliance issues or clearance delays. Consistent HSN classification across invoices and customs documents keeps transactions smooth and auditable.
The HSN Code appears on GST tax invoices, GST returns, commercial invoices and customs documents. When buyers request a quotation, confirming the HSN Code early helps them check the applicable GST and duty, calculate landed cost and avoid surprises at clearance.
The HSN Code is a cornerstone of trade and taxation in India, classifying goods for GST and customs on the basis of the global Harmonized System. Aligned with the international HS Code but extended for national detail, it determines the tax and duty treatment of every product. For B2B buyers and suppliers, quoting the correct HSN Code ensures accurate pricing, correct taxation and smooth customs clearance.