GST Rate on Fuel additive
The GST rate on fuel additive is 18%, under HSN code 3811 (anti-knock preparations, fuel additives). Here is the full breakdown, a worked example, and related rates in Chemicals & Industrial.
GST rate breakdown for fuel additive
- GST rate: 18%
- Intra-state: 9% CGST + 9% SGST
- Inter-state: 18% IGST
- HSN code on the invoice: 3811
- Also covers: anti-knock, octane booster
Rates reflect the GST 2.0 structure effective 22 September 2025 (slabs 0%, 5%, 18%, 40%). Confirm the current rate on the official GST portal before invoicing.
Worked example: GST on fuel additive
- Taxable value: ₹10,000
- GST (18%): ₹1,800
- Within state: ₹900 CGST + ₹900 SGST
- To another state: ₹1,800 IGST
- Invoice total: ₹11,800
FAQs about GST on fuel additive
What is the GST rate on fuel additive?
The GST rate on fuel additive is 18%. Intra-state it is 9% CGST + 9% SGST; inter-state it is 18% IGST. Fuel additive falls under HSN code 3811.
What is the HSN code for fuel additive?
Fuel additive falls under HSN code 3811, which covers anti-knock preparations, fuel additives. Show this code on every GST tax invoice line for fuel additive.