Add GST to a base price or work it backwards from a GST-inclusive amount — for every slab.
Total (incl. GST)
| Base price (taxable value) | |
| CGST (%) | |
| SGST (%) | |
| Total GST | |
| Invoice total |
Adding GST: GST = base × rate ÷ 100; total = base + GST. Removing GST (reverse) from an inclusive price: base = inclusive × 100 ÷ (100 + rate). For intra-state supply the tax splits equally into CGST + SGST; for inter-state supply the full rate is charged as IGST. Filed late? Check your penalty with the GST Late Fee Calculator.
Since GST 2.0 (22 September 2025) the main rates are 5% (merit) and 18% (standard), plus a 40% rate for sin and luxury goods such as aerated drinks, pan masala, large cars and premium motorcycles. Some items are at 0%, 0.25% or 3% (gold, silver, jewellery). The old 12% and 28% slabs survive only for a handful of specified items (tobacco stays at 28% + compensation cess until the 40% rate is notified for it). This tool also supports a custom rate.
IGST applies to inter-state supplies and imports. Intra-state (within the same state) supplies attract CGST + SGST in equal halves.
Yes — GST is levied on the transaction value after any discount shown on the invoice, subject to GST valuation rules.
KyaTax handles GST registration, GSTR-1 & GSTR-3B — quick and affordable.
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