Every product has an HSN code, every service an SAC code — and your invoices and returns must carry them at the level of detail your turnover requires.

Why classification matters

The code determines the rate. Misclassify and you either overcharge customers (losing business) or undercharge (building a liability the department will find). Classification disputes are among the most common GST controversies.

How many digits do you need?

Disclosure requirements scale with turnover — smaller businesses report codes at a broader level, larger ones in full detail, as per the current notification. E-invoicing entities need precise codes from day one.

Getting it right

  • Start from what the product is, not what it is called in your trade
  • Check chapter notes — inclusions and exclusions decide edge cases
  • When two codes seem plausible, document why you chose yours; consistent, reasoned classification defends well
  • Review annually — rate notifications sometimes move items between entries

We fix classification as part of GST compliance — one review can prevent years of dispute. Ask us.