About HSN Code 840991
HSN Code 840991 covers Suitable for Use Solely or Principally with Spark-ignition Internal Combustion Piston Engines: and attracts a GST rate of 28%. For intra-state supplies, this is split as 14% CGST + 14% SGST. For inter-state supplies, 28% IGST is charged. This code falls under the Machinery & Electronics sector (IT equipment, electrical, industrial machinery).
How to Use HSN Code 840991 on GST Invoices
- Include the HSN code 840991 on every GST invoice for suitable for use solely or principally with spark-ignition internal combustion piston engines:
- 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
- 840910 — For Aircraft Engines
- 84091000 — For Aircraft Engines
- 84099111 — Valves, Inlet and Exhaust
- 84099112 — Pistons
- 84099113 — Piston Rings
Related Free Tools
- HSN/SAC Code Search — Search 22,000+ product and service codes
- GST Calculator — Calculate CGST, SGST, IGST split
- GSTIN Validator — Verify any GSTIN number
- GST Due Date Calendar — Never miss a filing deadline
- AI Bill Extractor — Extract invoice data with GL classification
1010 automatically suggests the correct HSN code when you create invoices, using AI to match your product descriptions to the CBIC master list of 22,000+ codes. Start your free trial →
Last verified: 2026-06-26 · Source: CBIC Master Tariff