How to Find the HSN Code for Your Product (2026 Guide)

The first time you have to put an HSN code on an invoice, the temptation is to copy the closest-looking code from a supplier's bill and move on. That works until a GST scrutiny notice asks why your rate differs from the right one for your goods. Below: the four methods that actually work, in the order you should try them.

Quick recap on the format: India uses an 8-digit code (called ITC-HS, an extension of the 6-digit WCO Harmonized System). Codes are mandatory on B2B invoices — 4 digits if turnover < ₹5 cr, 6 digits if turnover > ₹5 cr, 8 digits for exports / imports. If the structure is fuzzy, our HSN code explained post breaks it down digit by digit.

Method 1: Check existing invoices (most reliable)

If you've been selling the product, look at past invoices you've raised — or the GSTR-1 you've already filed. If you're sourcing from someone else, look at the supplier'sinvoice. Suppliers have usually classified the same goods many times and have stronger incentive than you to get it right (they'd be the ones audited if it's wrong on the input side).

Caveat:the supplier may sell the goods at a different stage of manufacture than you do. A textile mill selling cotton fabric and a garment shop selling a finished cotton shirt will use different HSN codes — chapter 52 (cotton fabric) vs chapter 61 (knitted apparel). Same input material, different chapters, different rates. Don't copy blindly.

Method 2: Search by product name

For most products, typing a plain-English description into a search box gets you to a usable code in 30 seconds. Use our HSN Code Lookup: type "cotton t-shirt", "ceramic tile", "laptop adapter", "turmeric powder". Results come from CBIC's official ITC-HS descriptions, so you're seeing the same wording the tax officer sees.

Three things to check before you trust the first result:

• Read the full description, not just the bolded headline. CBIC text uses hierarchical "parent - sub-cluster - leaf" format. The leaf phrase tells you the exact match.
• Watch for "Other" codes. Most headings end with a catch-all like 8517 99 00 or 9404 90 99. Use these only when no specific sub-code fits — audit officers treat "Other" classifications with suspicion when a specific one was available.
• Check the unit of measure. If your product is sold by piece ("u") and the code shows kg, you're probably in the wrong sub-heading.

Method 3: Browse by chapter

When you genuinely don't know what category your product falls under — common for novel goods, raw materials, or industrial parts — work top-down. Open the chapter browse view: 96 chapters covering everything from live animals (01) to works of art (97), with project imports and personal effects in chapter 98.

Some shortcuts that get you into the right neighbourhood fast:

• Chapters 01-24: food, beverages, agricultural produce
• Chapters 25-27: minerals, fuels, ores
• Chapters 28-38: chemicals, pharma, fertilisers, photographic goods
• Chapters 39-40: plastics and rubber
• Chapters 41-43: leather, hides, furs
• Chapters 44-49: wood, paper, books, printed matter
• Chapters 50-63: textiles (50 silk, 52 cotton, 61-62 apparel, 63 home textiles)
• Chapter 64: footwear
• Chapters 71-83: precious stones, base metals, articles of metal
• Chapter 84: machinery (general), 85: electrical machinery & electronics
• Chapters 86-89: vehicles, aircraft, ships
• Chapter 90: precision instruments (optical, medical, measuring)
• Chapters 94-96: furniture, toys, miscellaneous manufactured

Worked examples

Method 4: Ask your CA (when stakes are high)

For high-volume products, products you import, or anything where the wrong classification means a meaningful tax delta, get a formal opinion from your CA before you start invoicing. Even better: if the ambiguity is structural, you can file an Advance Ruling applicationwith the AAR (Authority for Advance Ruling) — the decision is binding on the GST department for your specific case. It takes 3-6 months and isn't cheap, but for million-rupee classification questions it's insurance.

Edge cases that catch people out

• Services use SAC, not HSN.If you're a consultancy, agency, or service business, you need a SAC (Services Accounting Code) — a parallel 6-digit system. Chapter 99 in HSN is reserved for services in some contexts, but SAC is the working system. SAC codes for IT services start with 9983, for legal with 9982, etc.
• Mixed-material goods follow GRI rules.A leather wallet with a metal clasp is classified by what gives it "essential character" (leather, chapter 42), not by the metal trim. The General Rules of Interpretation (GRIs) prefixed to the schedule explain how to choose.
• Parts vs accessories vs finished goods. A car engine alone is a part (Chapter 87 has sub-codes for parts). A car as a whole is a finished good (different heading in 87). Different rates. The same applies to chargers, batteries, replacement screens.
• Imports are 8-digit, mandatory.Even small importers must use the full 8-digit code on Bills of Entry. Don't pick a 6-digit code and pad with zeros if a specific 8-digit alternative exists.

What to do if you've been using the wrong code

If you spot an old mistake, fix it going forward immediately. For past invoices, two paths: (1) if the rate was correct anyway (some HSN errors don't change the rate), the cost is just amending GSTR-1 and noting the change. (2) If the rate was wrong, work with your CA to file a voluntary disclosure — penalties for voluntary disclosure are dramatically lower than for findings on audit. We covered the cost side of getting it wrong in our 5 most common HSN classification mistakes post.

Tools to bookmark

• HSN Code Lookup — search by description or browse by chapter
• GST Calculator — once you have the code, work out the tax
• Import Duty Calculator — BCD + SWS + IGST on imports
• GSTIN Validator — confirm your buyer's number before you raise the invoice

This article is informational. Classification is fact-specific; for a binding opinion on your product, consult a CA or apply for an Advance Ruling.