How to Find the Correct HSN Code for Your Product
HSN codes decide your GST rate and are now mandatory on invoices. Learn the 4/6/8-digit rules and how to look them up.
What is HSN
The Harmonised System of Nomenclature is a WCO classification with 21 sections and 99 chapters. India uses 8-digit codes; the first 2 digits are the chapter, next 2 the heading, next 2 the sub-heading and last 2 the tariff item.
How many digits must you print
Turnover up to ₹5 crore: 4 digits mandatory on B2B invoices (optional on B2C). Above ₹5 crore: 6 digits on all invoices. Exports and imports always need 8 digits.
Where to look it up
Use the HSN search on the GST portal (Services → User Services → Search HSN), the CBIC tariff, or your supplier's purchase invoice which already carries the code.
SAC for services
Services use 6-digit SAC codes beginning with 99, e.g. 998314 for IT design and development, 996511 for road transport of goods.
Make it painless
Save each product once in SmartGST with its HSN and GST rate. Every future invoice auto-fills both, and the HSN summary table for GSTR-1 is built automatically.
Try it on your next invoice
SmartGST Invoices automates GST calculation, HSN codes, reminders and GSTR reports. Free to start.
Create a free accountKeywords: hsn code search · hsn code mandatory invoice. This article is general information, not professional tax advice.
