GST Margin Calculator
Set a selling price from your cost and the profit margin you want, then see the GST and the final price your customer pays.
Result
- Selling price before GST
- ₹12,000.00
- GST @ 18%
- ₹2,160.00
- CGST @ 9%
- ₹1,080.00
- SGST @ 9%
- ₹1,080.00
- Your profit
- ₹2,000.00
- Total including GST
- ₹14,160.00
Formula: ₹10,000.00 × (100 + 20) ÷ 100 = ₹12,000.00, then GST 18% = ₹2,160.00, final price ₹14,160.00
GST rates in India
| 0.25% | Rough and semi-precious stones |
|---|---|
| 3% | Gold, silver and jewellery |
| 5% | Merit rate: essentials and many daily-use goods and services |
| 18% | Standard rate: most goods and services |
| 40% | Special rate: luxury and sin goods |
Rates as of FY 2026-27. Results are estimates; check the current CBIC notification for your HSN/SAC code before invoicing.
Frequently asked questions
How is the selling price calculated?
Selling price before GST = cost × (100 + margin %) ÷ 100. GST is then charged on that selling price, and the customer pays selling price + GST.
Is GST part of my profit?
No. The GST you collect is passed on to the government (after any input tax credit), so your profit is the selling price before GST minus your cost.
Raising GST invoices every month? CoTeamSpace Invoicing applies the right rate and CGST/SGST/IGST split on every invoice automatically.
See GST Invoicing