Natural gas in gaseous state, compressed natural gas (CNG) and piped natural gas (PNG).
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CNG and Natural Gas falls under HSN 2711, in chapter 27 (Mineral fuels and oils).
Natural gas is one of the petroleum products kept outside GST, so CNG at a pump and PNG in a kitchen are billed with VAT, not GST. Transport of natural gas through a pipeline is a taxable service. LPG, though in the same heading 2711, is fully inside GST.
| Code | Description |
|---|---|
| 271111 | Liquefied natural gas (LNG) |
| 271121 | Natural gas in gaseous state (CNG, PNG) |
CNG and Natural Gas is outside GST: no CGST, SGST or IGST is charged on it. Outside GST. Natural gas, including CNG and PNG, carries central excise duty and state VAT instead of GST.
Compare other goods on the GST rates list.
The number of digits depends on your aggregate turnover in the previous financial year.
| Turnover last year | Digits | Write |
|---|---|---|
| Up to Rs 5 crore | 4 on B2B invoices, optional on B2C | 2711 |
| Above Rs 5 crore | 6 on every invoice | 271111, 271121 |
| Export or import | 8 on the shipping bill or bill of entry | From the Customs Tariff, chapter 27 |
Chapter 27 (Mineral fuels and oils) covers: Coal, crude oil, petrol, diesel, lubricants, LPG, natural gas and bitumen.
Other pages in chapter 27
Products often bought, sold or invoiced together with CNG and natural gas:
CNG and Natural Gas falls under HSN 2711: natural gas in gaseous state, compressed natural gas (CNG) and piped natural gas (PNG). Common 6 digit codes are 271111 for liquefied natural gas (LNG) and 271121 for natural gas in gaseous state (CNG, PNG).
Outside GST. Natural gas, including CNG and PNG, carries central excise duty and state VAT instead of GST.
If your aggregate turnover in the previous financial year was up to Rs 5 crore, write the 4 digit code 2711 on B2B invoices (optional on B2C invoices). Above Rs 5 crore, write 6 digits, such as 271111, on every invoice. Shipping bills and bills of entry need the full 8 digit code from the Customs Tariff.
Rates checked on 13 October 2026 against the GST rate notifications in force (GST 2.0 from 22 September 2025). Descriptions are in our own words and are a guide, not a ruling: for a disputed or high value item, check the notification or ask your tax adviser.