About HSN Code 30042020

HSN Code 30042020 covers Sulfonamides and Cotrimoxazole and attracts a GST rate of 12%. For intra-state supplies, this is split as 6% CGST + 6% SGST. For inter-state supplies, 12% IGST is charged. This code falls under the Chemicals & Materials sector (Paint, fertilizer, rubber, plastics, pharma).

How to Use HSN Code 30042020 on GST Invoices

• Include the HSN code 30042020 on every GST invoice for sulfonamides and cotrimoxazole
• Businesses with turnover above ₹5 crore must use 6-digit HSN codes
• Turnover between ₹1.5–5 crore: 4-digit codes are sufficient
• The HSN code must match the product/service description on your invoice
• Incorrect HSN codes can lead to GST notices and ITC mismatches

Related HSN Codes

• 30041010 — Penicillins
• 30041020 — Ampicillin
• 30041030 — Amoxycillin
• 30041040 — Becampicillin
• 30041050 — Cloxacillin

Related Free Tools

• HSN/SAC Code Search — Search 22,000+ product and service codes
• GST Calculator — Calculate CGST, SGST, IGST split
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• GST Due Date Calendar — Never miss a filing deadline
• AI Bill Extractor — Extract invoice data with GL classification

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Last verified: 2026-06-26 · Source: CBIC Master Tariff