GST components
- CGST
- ₹90.00
- SGST
- ₹90.00
- IGST
- ₹0.00
Tax tool
GST Calculator
Calculate GST-inclusive or GST-exclusive invoice values, with CGST/SGST and IGST component breakdowns.
Inclusive mode
Back out tax from a final price.
Exclusive mode
Add GST to taxable value.
Tax split
Show CGST/SGST or IGST components.
Taxable value
₹1,000.00
Total GST
₹180.00
Invoice amount
₹1,180.00
Calculation basis
- Entered amount
- ₹1,000
- Price mode
- GST exclusive
- Tax mode
- CGST + SGST
- GST rate
- 18%
GST breakdown
| Line item | Amount |
|---|---|
| Taxable value | ₹1,000.00 |
| CGST | ₹90.00 |
| SGST | ₹90.00 |
| IGST | ₹0.00 |
| Total GST | ₹180.00 |
| Invoice amount | ₹1,180.00 |
This calculator is for education and invoice-checking support only. GST applicability, place of supply, exemptions, and compliance treatment can vary.
Methodology
For exclusive GST, the calculator treats the entered amount as taxable value and adds GST at the selected rate. For inclusive GST, it divides the final amount by one plus the GST rate to find taxable value, then calculates the embedded tax.
In CGST/SGST mode, total GST is split equally and reconciled to the rounded total tax. In IGST mode, the full GST amount is shown as IGST.
FAQs
What is exclusive GST?
Exclusive GST means the entered amount is the taxable value before tax. GST is added on top to get the final invoice amount.
What is inclusive GST?
Inclusive GST means the entered amount already includes tax. The calculator backs out taxable value and GST from the final price.
When should I use CGST/SGST or IGST?
Use CGST/SGST for intra-state supplies and IGST for inter-state supplies. Confirm the applicable treatment with your tax advisor.
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