In Hindi: एचएसएन कोड · Also called: HSN, HSN number
HSN (Harmonised System of Nomenclature) is the international system of codes for goods, and India's GST uses it to classify what is being sold. Services have their own codes, SAC, which start with 99.
Since 1 April 2021, a business with a turnover of up to ₹5 crore in the previous year must show at least 4 digits on tax invoices to registered buyers, and may leave the code off bills to consumers. Above ₹5 crore, 6 digits are required on every tax invoice.
The code is where a rate lookup starts, not where it ends: one heading can cover goods taxed at different rates.
