GST Rate for HSN 6903
Specific items under 6903
| HSN Code | Description | GST Rate |
|---|---|---|
| 690310 | CONTAINING BY WEIGHT MORE THAN 50% OF FREE CARBON | 18% |
| 690320 | CONTAINING BY WEIGHT MORE THAN 50% OF ALUMINA (AL2O3) OR OF A MIXTURE OR COMPOUND OF ALUMINA AND OF SILICA (SIO2) : | 18% |
| 690390 | OTHER : | 18% |
| 69031000 | CONTAINING BY WEIGHT MORE THAN 50% OF FREE CARBON | 18% |
| 69031010 | OTHER REFRACTORY CERAMIC GOODS (FOR EXAMPLE, RETORTS, CRUCIBLES, MUFFLES, NOZZLES, PLUGS, SUPPORTS, CUPELS, TUBES, PIPES, SHEATHS AND RODS), OTHER THAN THOSE OF SILICEOUS FOSSIL MEALS OR OF SIMILAR SILICEOUS EARTHS - CONTAINING BY WEIGHT MORE THAN 50% OF GRAPHITE OR OTHER CARBON OR OF A MIXTURE OF THESE PRODUCTS : MAGNESIA CARBON BRICKS, SHAPES AND GRAPHETISED ALUMINA | 18% |
| 69031090 | OTHER REFRACTORY CERAMIC GOODS (FOR EXAMPLE, RETORTS, CRUCIBLES, MUFFLES, NOZZLES, PLUGS, SUPPORTS, CUPELS, TUBES, PIPES, SHEATHS AND RODS), OTHER THAN THOSE OF SILICEOUS FOSSIL MEALS OR OF SIMILAR SILICEOUS EARTHS - CONTAINING BY WEIGHT MORE THAN 50% OF GRAPHITE OR OTHER CARBON OR OF A MIXTURE OF THESE PRODUCTS :OTHER | 18% |
| 69032010 | SILICON CARBIDE CRUCIBLES | 18% |
| 69032090 | OTHER | 18% |
| 69039010 | ZIRCON OR ZIRCON-MULLITE REFRACTORIES | 18% |
| 69039020 | BASALT TILES | 18% |
| 69039030 | CERAMIC FIBRES | 18% |
| 69039040 | MONOLITHICS OR CASTABLES (FIRE-CLAY, BASIC, SILICA, HIGH ALUMINA, INSULATING) | 18% |
| 69039090 | OTHER | 18% |
Tax calculator for HSN 6903
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 69 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 6903
What is the GST rate for HSN 6903?▾
GST rate for HSN 6903 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 6903 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 6903
Use global search to compare descriptions and avoid wrong classification.
Check inclusions/exclusions and common confusions for Chapter 69.
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.