HSN code for water tank.
Water tank is classified under HSN code 392510 (RESERVOIRS, TANKS, VATS AND SIMILAR CONTAINERS, OF). The GST rate is 18%, effective 2025-09-22, per 9/2025-Central Tax (Rate).
GST rate for water tank
| gst | cgst + sgst | what it covers | entry |
|---|---|---|---|
| 18% | 9% + 9% | Builders’ ware of plastics, not elsewhere specified or included | Sch II S.No 1269/2025-Central Tax (Rate) |
source: 9/2025-Central Tax (Rate) · effective 2025-09-22 · rate inherited from heading 3925
Invoice examples at 18%
Intra-state sale of ₹10,000 at 18% GST
- Taxable value₹10,000
- CGST @ 9%₹900
- SGST @ 9%₹900
- Invoice total₹11,800
Inter-state sale of ₹1,00,000 at 18% GST
- Taxable value₹1,00,000
- IGST @ 18%₹18,000
- Invoice total₹1,18,000
More specific codes under 392510
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Full detail — official text, every sub-code and rate history — on the HSN 392510 code page → · chapter 39 — Plastics and articles thereof
compiled from official CBIC sources · not tax advice — verify with your tax advisor before filing