Caustic Soda HSN Code with GST Rate
The HSN Code for caustic soda is 2815. The source lists sodium hydroxide, including solid caustic soda, caustic soda flakes, pellets and pearls, with a 0% GST rate.
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HSN Code & GST Rate List for Caustic Soda
Showing 5 of 5 HS codes| HSN Code | Description | HS Code | Description | GST% |
|---|---|---|---|---|
| 2815 | Sodium hydroxide ("caustic soda"), potassium hydroxide ("caustic potash"); peroxides of sodium or potassium | 281512 | Sodium hydroxide "caustic soda" in aqueous solution "soda lye or liquid soda" | 0% |
| 281511 | Sodium hydroxide "caustic soda" solid. Products include: Sodium Hydroxide Pellets | 0% | ||
| 28151110 | Flakes of sodium hydroxide (NaOH), solid. Products include: Caustic Soda Flakes, Sodium Hydroxide Pellets | 0% | ||
| 28151190 | NaOH, solid, other than flakes. Products include: Caustic Soda Pearls | 0% | ||
| 3804 | Residual lyes from the manufacture of wood pulp, whether or not concentrated, desugared or chemically treated, incl. lignin sulphonates | 380400 | Residual lyes from the manufacture of wood pulp, whether or not concentrated, desugared or chemically treated, incl. lignin sulphonates. Products include: Sodium Lignosulphonate | 18% |
Disclaimer: The GST rates and HSN codes listed above are compiled from the latest CBIC notifications and NIC's GST e-Invoice system master codes, to the best of our knowledge. Rates are subject to change based on the Government of India and GST Council updates. RegisterKaro is not liable for any discrepancies or decisions made based on this information. For the most accurate and updated "16th October 2020" of GST and cess rates, please visit the official CBIC website. Need help with GST registration or filing? Talk to a RegisterKaro expert.
Caustic soda is classified under HSN 2815. HS Code 281512 covers sodium hydroxide in aqueous solution, while HS Codes 28151110 and 28151190 cover solid sodium hydroxide, including caustic soda flakes, pellets and pearls. The source lists these classifications at 0% GST. A related residual-lye classification under HSN 3804 is listed at 18% GST. Businesses can verify the HSN Code, check details through GST Search, and calculate applicable tax using the GST Calculator.
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The HSN Code for caustic soda is 2815.









