Inorganic chemicals is classified under HSN Chapter 28 (Inorganic chemicals, organic or inorganic compounds of precious metals, of…). GST as on 1 November 2026: Nil, 5% or 18%. On B2B invoices, write at least 4 digits of the code (6 digits on every invoice if last year's turnover was above ₹5 crore).
Rates checked on 1 November 2026 · BooksOn HSN dataset v9, compiled from CBIC notifications
Look up any HSN or SAC code and its GST rate on any date since 1 July 2017, with the CBIC notification — in the free BooksOn HSN app. Works offline, no ads.
What is the GST rate on Inorganic chemicals?
GST on Inorganic chemicals as on 1 November 2026: Nil, 5% or 18%. Which rate applies depends on the exact code and on how it is sold or supplied; each entry below names the CBIC notification it comes from.
Changed with GST 2.0 (22 September 2025): 12% → 5% (Micronutrients, which are covered…); 12% → 5% (28044010); 18% → 5% (2807); 18% → 5% (2808). Many rate charts online still show the old rate. All GST 2.0 rate changes.
| New GST rate | Old GST rate (before 22 Sep 2025) | Code | What it covers |
|---|---|---|---|
| 5% | – | 28 | If you sell anaesthetics, potassium iodate, iodine or steam, GST is 5%. 9/2025-CT(R), entry 211 |
| 5% | – | 28 | If you sell thorium oxalate, enriched KBF4 (potassium fluoroborate), enriched elemental boron or nuclear fuel, GST is 5%. 9/2025-CT(R), entry 210 |
| 5% | 12% | 28 | Micronutrients listed in the Fertilizer Control Order, 1985, made by manufacturers registered under that Order. 9/2025-CT(R), entry 221 |
| 18% | 18% | 28 | Inorganic chemicals are taxed at 18%, unless another rate list names them separately. 9/2025-CT(R), entry 35 |
| 5% | 12% | 28044010 | If you sell medical grade oxygen, GST is 5%. 9/2025-CT(R), entry 212 |
| 5% | 5% | 280511 | If you sell nuclear grade sodium, GST is 5%. 9/2025-CT(R), entry 213 |
| 5% | 18% | 2807 | If you sell sulphuric acid, GST is 5%. 9/2025-CT(R), entry 214 |
| 5% | 18% | 2808 | If you sell nitric acid, GST is 5%. 9/2025-CT(R), entry 215 |
| 5% | 5% | 2809 | If you sell fertilizer grade phosphoric acid, GST is 5%. 9/2025-CT(R), entry 216 |
| 5% | 18% | 2814 | If you sell ammonia, GST is 5%. 9/2025-CT(R), entry 217 |
| Nil | Nil | 2835 | No GST on dicalcium phosphate (DCP) of animal feed grade that meets IS 5470:2002. 10/2025-CT(R), entry 112 |
| 5% | 5% | 2845 | If you sell heavy water and other nuclear fuels, GST is 5%. 9/2025-CT(R), entry 218 |
2 more entries, and the rate on any past date, in the free app.
GST rate on Inorganic chemicals since 1 July 2017
The rate in force in each period, for old invoices, amended returns and audits. Each change came with a CBIC notification; the rate on any exact date is in the app. For an invoice dated around a change: GST rate on a past date.
| From | To | GST |
|---|---|---|
| 1 July 2017 | 21 September 2025 | Nil, 5%, 12% or 18% |
| 22 September 2025 | today | Nil, 5% or 18% |
28 Inorganic chemicals, organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes
Headings in Chapter 28
| Code | Description (as in the tariff) |
|---|---|
2801 | Fluorine, chlorine, bromine and iodine |
2802 | Sulphur, sublimed or precipitated; colloidal sulphur |
2803 | Carbon (carbon blacks and other forms of carbon not elsewhere specified or included) |
2804 | Hydrogen, rare gases and other non-metals |
2805 | Alkali or alkaline-earth metals, rare-earth metals,scandium and yttrium, whether or not intermixed or interalloyed, mercury |
2806 | Hhydrogen chloride (hydrochloric acid), chlorosulphuric acid |
2807 | Sulphuric acid; oleum |
2808 | Nitric acid; sulphonitric acids |
2809 | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined |
2810 | Oxides of boron, boric acids |
2811 | Other inorganic acids and other inorganic oxygen compounds of non-metals |
2812 | Halides and halide oxides of non-metals |
2813 | Sulphides of non-metals; commercial phosphorus trisulphide |
2814 | Ammonia, anhydrous or in aqueous solution |
2815 | Sodium hydroxide (caustic soda), potassium hydroxide (caustic potash), peroxides of sodium or potassium |
2816 | Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium |
2817 | Zinc oxide; zinc peroxide |
2818 | Artificial corundum, whether or not chemically defined; aluminium oxide; aluminium hydroxide |
2819 | Chromium oxides and hydroxides |
2820 | Manganese oxides |
2821 | IRON OXIDES AND HYDROXIDES; EARTH COLOURS CONTAINING 70% OR MORE BY WEIGHT OF COMBINED IRON EVALUATED AS Fe2O3 |
2822 | Cobalt oxides and hydroxides; commercial cobalt oxides |
2823 | Titanium oxides |
2824 | Lead oxides; red lead and orange lead |
2825 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides |
2826 | Fluorides, fluorosilicates, fluoroaluminates and other complex fluorine salts |
2827 | Chlorides, chloride oxides and chloride hydroxides, bromides and bromide oxides, iodides and iodide oxides |
2828 | Hypochlorites ; commercial calcium hypochlorites; chlorites; hypobromites |
2829 | Chlorates and perchlorates, bromates and perbromates, iodates and periodates |
2830 | Sulphides; polysulphides, whether or not chemically defined |
2831 | Dithionites and sulphoxylates |
2832 | Sulphites; thiosulphates |
2833 | Sulphates; alums; peroxosulphates (persulphates) |
2834 | Nitrites; nitrates |
2835 | Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates, polyphosphates whether or not chemically defined |
2836 | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate |
2837 | Cyanides, cyanide oxides and complex cyanides |
2838 | Fulminates, cyanates and thiocyanates - fulminates, cyanates and thiocyanates : fulminates |
2839 | Silicates, commercial alkali metal silicates |
2840 | Borates, peroxoborates (perborates) |
See all codes on the Chapter 28 page.
Which code goes on your GST invoice?
With aggregate turnover up to ₹5 crore in the previous year, a tax invoice shows at least 4 digits of the HSN code for supplies to registered buyers (B2B; optional on B2C invoices); above ₹5 crore, at least 6 digits on every tax invoice (Notification 78/2020-Central Tax, 15 October 2020). The HSN summary in Table 12 of GSTR-1, with separate B2B and B2C tabs, follows the same rule, and services use the SAC code the same way.
Questions
What is the HSN code for Inorganic chemicals?
Inorganic chemicals is classified under HSN Chapter 28 (Inorganic chemicals, organic or inorganic compounds of precious metals, of…). GST as on 1 November 2026: Nil, 5% or 18%. On B2B invoices, write at least 4 digits of the code (6 digits on every invoice if last year's turnover was above ₹5 crore).
What is the GST rate on Inorganic chemicals?
As on 1 November 2026, GST on Inorganic chemicals is Nil, 5% or 18%, depending on the exact code and how it is sold or supplied (CBIC notification 9/2025-CT(R), 10/2025-CT(R)). Reference only; check the notification.
Did the GST rate on Inorganic chemicals change in 2025?
Yes. From 22 September 2025 (GST 2.0): 12% → 5% (Micronutrients, which are covered…); 12% → 5% (28044010); 18% → 5% (2807); 18% → 5% (2808). Source: CBIC Notification 9/2025-CT(R).
What was the GST rate on Inorganic chemicals in July 2017?
On 1 July 2017: Nil, 5%, 12% or 18%.
← HSN and SAC codes for common items · Search any code on the HSN code finder.
Other common items
- Medical oxygen
2804 - Sulphuric, nitric and hydrochloric acid
2806 - Caustic soda and soda ash
2815 - Synthetic dyes (reactive dyes, disperse dyes, vat dyes)
3204 - Surfactants (LABSA, non-ionic surfactants)
3402 - Speciality chemical preparations (not elsewhere specified)
3824 - Steel drums and barrels
7310 - Chemical job work
9988 - Paneer (Cottage cheese)
0406 - Milk (Doodh)
0401 - Curd (Dahi)
0403 - Ghee (Clarified butter)
0405
Codes and descriptions from the BooksOn HSN dataset (version 9, 2026-11-01), compiled from the Customs Tariff and CBIC notifications. Reference only; see Sources & disclaimer.