HSN Code & Customs Classification
Every business registered under GST must report the correct HSN (Harmonised System of Nomenclature) code for all goods and services supplied. For customs purposes, the correct CTH (Customs Tariff Heading) determines the duty rate and import policy. Wrong HSN or CTH leads to GST notices, customs disputes, and incorrect duty payments. BSP Associate provides HSN and customs classification opinions for manufacturers, traders, and importers — based on product description, technical specifications, and applicable classification rules.
What's Included
Everything you get when you engage BSP Associate for HSN Code & Customs Classification.
- HSN code determination for GST compliance
- CTH (Customs Tariff Heading) classification for customs clearance
- General Rules of Interpretation application for complex products
- GST rate identification based on correct HSN
- Import duty rate determination based on CTH
- Classification opinion note with legal basis
- Advance ruling application for classification certainty
Documents Required
Have these ready before you reach out — it speeds things up considerably.
Documents You'll Need
Please arrange these before your consultation
- Detailed product description
- Technical specifications, data sheet, or catalogue
- Composition or ingredients list (for chemical or food products)
- Manufacturing process description (if relevant)
- Country of origin
- Any existing classification letters or court orders
Don't have these? We'll prepare them for you.
BSP Associate can draft and file all of the following
- HSN / CTH classification opinion note
- GST rate applicability analysis
- Advance ruling application to AAR or CAAR
- Response to GST or customs notice on classification
Frequently Asked Questions
Common questions about HSN Code & Customs Classification.
Yes. HSN code disclosure in GST invoices and GSTR-1 is mandatory based on annual turnover. Businesses with turnover up to ₹5 crore must mention 4-digit HSN. Businesses with turnover above ₹5 crore must mention 6-digit HSN. For customs and import/export purposes, the full 8-digit CTH is required. Wrong HSN in invoices and returns can trigger GST notices.
BS Balaji
Founder & Principal Consultant
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