GST Rate for HSN 2931
Specific items under 2931
| HSN Code | Description | GST Rate |
|---|---|---|
| 293100 | Other organo-inorganic compounds | 18% |
| 293110 | TETRAMETHYL LEAD AND TETRAETHYL LEAD: | 18% |
| 293120 | Tributyltin compounds | 18% |
| 293141 | DIMETHYL METHYLPHOSPHONATE | 18% |
| 293142 | DIMETHYL PROPYLPHOSPHONATE | 18% |
| 293143 | DIETHYL ETHYLPHOSPHONATE | 18% |
| 293144 | METHYLPHOSPHONIC ACID | 18% |
| 293145 | SALT OF METHYLPHOSPHONIC ACID AND (AMINOIMINOMETHYL) UREA (1 : 1) | 18% |
| 293146 | 2,4,6-TRIPROPYL-1,3,5,2,4,6-TRIOXATRIPHOSPHINANE 2,4,6-TRIOXIDE | 18% |
| 293147 | (5-ETHYL-2-METHYL-2-OXIDO-1,3,2-DIOXAPHOSPHINAN-5-YL) METHYL METHYL METHYLPHOSPHONATE | 18% |
| 293148 | 3,9-DIMETHYL-2,4,8,10-TETRAOXA-3,9- DIPHOSPHASPIRO [5.5] UNDECANE 3,9-DIOXIDE | 18% |
| 293149 | OTHER | 18% |
| 293151 | METHYLPHOSPHONIC DICHLORIDE | 18% |
| 293152 | PROPYLPHOSPHONIC DICHLORIDE | 18% |
| 293153 | O-(3-CHLOROPROPYL) O-[4-NITRO-3-(TRIFLUOROMETHYL) PHENYL] METHYLPHOSPHONOTHIONATE | 18% |
| 293154 | TRICHLORFON (ISO) | 18% |
| 293159 | OTHER | 18% |
| 293190 | OTHER: | 18% |
| 29310010 | OTHER ORGANO-INORGANIC COMPOUNDS - OTHER ORGANO-INORGANIC COMPOUNDS : ORGANO-MERCURY COMPOUNDS | 18% |
| 29310041 | PHOSPHONIC ACID,METHYL - | 18% |
| 29310042 | PHOSPHONIC ACID,ETHYL | 18% |
| 29310043 | PHOSPHONIC ACID,PROPYL | 18% |
| 29310044 | PHOSPHINIC ACID,METHYL- | 18% |
| 29310051 | PHOSPONIC ACIDE,[METHYL-(5-ETHYL-2-METHYL 2-OXIDO- 1,3,2-DIOXAPHOSPHORINAN-5-YL) METHYL]ESTER | 18% |
| 29310052 | PHOSPHONIC ACIDE,[METHYL-BIS (5-ETHYL-2-METHYL 2-OXIDO- 1,3,2-DIOXAPHOSPHORINAN-5-YL) METHYL] ESTER | 18% |
| 29310053 | PHOSPHONIC ACID,METHYL,DIMETHYL ESTER | 18% |
| 29310054 | PHOSPHONIC ACID PROPYL DIMETHYL ESTER | 18% |
| 29310055 | PHOSPHONIC ACID ETHYL-DIETHYL ESTER | 18% |
| 29310056 | PHOSPHONOCHLORIDIC ACID METHYL-,METHYL ESTER | 18% |
| 29310057 | PHOSPHONOUS ACID- METHYL DIETHYL ESTER | 18% |
| 29310061 | 1 PROPANAMINIUM N,N,N TRIMETHYL 3-[1-OXO-9-OCTADECENYL AMINO] -(Z)-METHYL METHYL PHOSPHONATE | 18% |
| 29310062 | O,O-DIMETHYL METHYL PHOSPHONATE | 18% |
| 29310071 | PHOSPHONOTHIOIC DICHLORIDE,ETHYL- | 18% |
| 29310072 | PHOSPHONIC DICHLORIDE,METHYL | 18% |
| 29310073 | PHOSPHONOUS DICHLORIDE,METHYL- | 18% |
| 29311010 | TETRAMETHYL LEAD | 18% |
| 29311020 | OTHER ORGANO-INORGANIC COMPOUNDS-TETRAMETHYL LEAD AND TETRAETHYL LEAD---TETRAETHYL LEAD | 18% |
| 29311090 | TETRAETHYL LEAD | 18% |
| 29312000 | TRIBUTYLTIN COMPOUNDS | 18% |
| 29313100 | Dimethyl methylphosphonate | 18% |
| 29313200 | Dimethyl propylphosphonate | 18% |
| 29313300 | Diethyl ethylphosphonate | 18% |
| 29313400 | Sodium 3-(trihydroxysilyl)propyl methylphosphonate | 18% |
| 29313500 | 2, 4, 6-Tripropyl-1, 3, 5, 2, 4, 6-trioxatriphosphinane 2, 4, 6-trioxide | 18% |
| 29313600 | (5-Ethyl-2-methyl-2-oxido-1, 3, 2-dioxaphosphinan-5-yl)methyl methylphosphonate | 18% |
| 29313700 | Bis[(5-ethyl-2-methyl-2-oxido-1, 3, 2-dioxaphosphinan-5-yl) methyl] methylphosphonate | 18% |
| 29313800 | Salt of methylphosphonic acid and (aminoiminomethyl)urea (1 1) | 18% |
| 29313900 | Other | 18% |
| 29314100 | DIMETHYL METHYLPHOSPHONATE | 18% |
| 29314200 | DIMETHYL PROPYLPHOSPHONATE | 18% |
| 29314300 | DIETHYL ETHYLPHOSPHONATE | 18% |
| 29314400 | METHYLPHOSPHONIC ACID | 18% |
| 29314500 | SALT OF METHYLPHOSPHONIC ACID AND (AMINOIMINOMETHYL) UREA (1 : 1) | 18% |
| 29314600 | 2,4,6-TRIPROPYL-1,3,5,2,4,6-TRIOXATRIPHOSPHINANE 2,4,6-TRIOXIDE | 18% |
| 29314700 | (5-ETHYL-2-METHYL-2-OXIDO-1,3,2-DIOXAPHOSPHINAN-5-YL) METHYL METHYL METHYLPHOSPHONATE | 18% |
| 29314800 | 3,9-DIMETHYL-2,4,8,10-TETRAOXA-3,9- DIPHOSPHASPIRO [5.5] UNDECANE 3,9-DIOXIDE | 18% |
| 29314910 | SODIUM 3-(TRIHYDROXYSILYL) PROPYL METHYLPHOSPHONATE | 18% |
| 29314920 | BIS[(5-ETHYL-2-METHYL-2-OXIDO-1,3,2-DIOXAPHOSPHINAN-5-YL)METHYL] METHYLPHOSPHONATE | 18% |
| 29314930 | GLYPHOSATE (ISO) | 18% |
| 29314990 | OTHER | 18% |
| 29315100 | METHYLPHOSPHONIC DICHLORIDE | 18% |
| 29315200 | PROPYLPHOSPHONIC DICHLORIDE | 18% |
| 29315300 | O-(3-CHLOROPROPYL) O-[4-NITRO-3-(TRIFLUOROMETHYL) PHENYL] METHYLPHOSPHONOTHIONATE | 18% |
| 29315400 | TRICHLORFON (ISO) | 18% |
| 29315900 | OTHER | 18% |
| 29319010 | OTHER ORGANO-INORGANIC COMPOUNDS -OTHER---ORGANO ARSENIC COMPOUNDS | 18% |
| 29319011 | METHYLARSONIC ACID AND ITS SALT | 18% |
| 29319012 | CACODYLIC ACID AND ITS SALT | 18% |
| 29319013 | P-AMINOPHENYLARSONIC ACID AND ITS SALT | 18% |
| 29319014 | AMINO-HYDROXYPHENYLARSONIC ACIDS, THEIR FORMYL AND ACETYL DERIVATIVES AND THEIR SALTS | 18% |
| 29319015 | ARSENOBENZENE AND ITS DERIVATIVES | 18% |
| 29319019 | OTHER | 18% |
| 29319020 | ORGANO-SILICON COMPOUNDS | 18% |
| 29319030 | O-IODOSOBENZOIC ACID | 18% |
| 29319090 | OTHER | 18% |
Tax calculator for HSN 2931
Enter a taxable value to calculate GST. You can use this for a quick invoice estimate.
Invoice example (₹1,000 taxable value)
Compliance pointers (ITC / RCM / classification)
Input Tax Credit depends on usage conditions, restrictions, and supplier eligibility. Treat this as a quick hint — verify for edge cases.
Reverse Charge is notification-based and can depend on supplier status and transaction type. If you see a warning, double-check notifications and your invoice terms.
- •Compare adjacent headings within Chapter 29 before finalizing.
- •Use chapter notes to avoid common confusions (materials vs finished goods, kits, etc.).
- •For services (99), place-of-supply can change whether IGST/CGST+SGST applies.
FAQs for HSN 2931
What is the GST rate for HSN 2931?▾
GST rate for HSN 2931 is 18%. Always verify the latest CBIC/GST notifications for changes.
Is HSN mandatory on invoices?▾
HSN is generally required on B2B invoices; the number of digits depends on turnover and the nature of supply. Exports/imports typically use more detailed codes.
How do I use this code on an invoice?▾
Add HSN 2931 in the line item and apply GST @ 18%. For intra-state supplies: 9% CGST + 9% SGST. For inter-state supplies: 18% IGST.
Does ITC apply for this HSN?▾
ITC depends on conditions and restrictions under GST law, plus the nature of usage and supplier eligibility. Use the ITC badge as a hint and verify with your CA for edge cases.
Can Reverse Charge (RCM) apply here?▾
RCM is notification-based and depends on the supply category, supplier status, and transaction type. If you see an RCM note, treat it as a “verify” signal.
What if I pick the wrong HSN?▾
Wrong classification can cause rate mismatch, notices, interest/penalty exposure, and reconciliation issues. Compare nearby headings and chapter notes before finalizing.
Sources & accuracy
General GST guidance, return filing references, and updates.
Rates, exemptions, and clarifications may change via notifications/circulars.
Use chapter notes/headings to avoid misclassification.
How we update pages + what “Last reviewed” means. Last reviewed: 22 Jan 2026.
Next steps after choosing HSN 2931
Use global search to compare descriptions and avoid wrong classification.
Check inclusions/exclusions and common confusions for Chapter 29.
Decide whether IGST or CGST+SGST applies based on POS rules.
Related tools & next actions
Common next actions: verify POS (tax type), check RCM risk, or compare similar HSN codes.