GST calculator for CGST, SGST, and IGST estimates
Estimate the tax component and total invoice value from a taxable amount and GST rate. Use it for planning, then confirm the correct tax treatment for your transaction with a CA.
Calculate your GST
Enter the net taxable amount and the applicable GST rate. Toggle inter-state for IGST.
- Taxable amount
- ₹10,000
- CGST
- ₹900
- SGST
- ₹900
- Total invoice value
- ₹11,800
Planning estimate only. Tax treatment, rates, place of supply, and invoice obligations depend on your transaction; confirm specifics with a CA.
How the calculation works
Intra-state: CGST = SGST = Taxable × Rate ÷ 2
Inter-state: IGST = Taxable × Rate
Total = Taxable + TaxCGST (Central GST) and SGST (State GST) are each half of the total tax for intra-state supplies. IGST (Integrated GST) applies to inter-state supplies and equals the full tax amount. This is a planning estimate only — actual tax liability depends on your registration, compositing, place of supply, and applicable exemptions.
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