Find the correct HSN code for your product or SAC code for your service — along with the applicable GST rate. Search by keyword or browse by category.
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HSN (Harmonized System of Nomenclature) is an internationally accepted 8-digit code developed by the World Customs Organization (WCO) to systematically classify goods. In India, HSN codes are used under GST to classify products and determine the applicable GST rate.
An HSN code is built in layers: First 2 digits = Chapter (broad category), Next 2 digits = Heading (sub-category), Next 2 digits = Sub-heading (specific product), Last 2 digits = Tariff item (exact variant). Example: 85171200 = Chapter 85 (Electrical machinery) → 8517 (Telephones) → 851712 (Mobile phones) → 85171200 (Smartphones).
As per GST rules: Businesses with annual turnover up to ₹5 crore — 4-digit HSN required on B2B invoices. Businesses with turnover above ₹5 crore — 6-digit HSN mandatory on all invoices. Exporters — 8-digit HSN always required.
Mentioning the wrong HSN code on your GST invoice is a compliance violation that can attract penalties and scrutiny during GST audits. More importantly, the HSN code determines the GST rate applied — a wrong code means you may be charging the wrong tax rate from your customers.
