✓ Calculate GST included in your final bill instantly
Enter your final GST-inclusive invoice amount and instantly find the original taxable amount and GST included in the total.
Already have the final amount including GST? Enter it below to calculate the taxable amount and GST.
When an invoice total already includes GST, you cannot calculate the GST simply by taking a percentage of the final amount. The GST-inclusive amount contains both the original taxable value and the GST.
To find the taxable amount, divide the final amount by 1 + GST rate. You can then subtract the taxable amount from the final invoice amount to find the GST included in the bill.
Suppose you received a GST-inclusive invoice for ₹118 and the applicable GST rate is 18%.
| Final Invoice Amount | ₹118.00 |
|---|---|
| GST Rate | 18% |
| Taxable Amount | ₹100.00 |
| GST Included | ₹18.00 |
| CGST | ₹9.00 |
| SGST | ₹9.00 |
If the final GST-inclusive bill amount is ₹1,000 and the GST rate is 18%, the original taxable value is approximately ₹847.46 and the GST included is approximately ₹152.54.
| Final Amount | ₹1,000.00 |
|---|---|
| Taxable Amount | ₹847.46 |
| GST Included | ₹152.54 |
| CGST @ 9% | ₹76.27 |
| SGST @ 9% | ₹76.27 |
The following examples show how much GST is included in different GST-inclusive invoice totals.
| Final Amount | 5% GST | 12% GST | 18% GST | 28% GST |
|---|---|---|---|---|
| ₹100 | ₹4.76 | ₹10.71 | ₹15.25 | ₹21.88 |
| ₹500 | ₹23.81 | ₹53.57 | ₹76.27 | ₹109.38 |
| ₹1,000 | ₹47.62 | ₹107.14 | ₹152.54 | ₹218.75 |
| ₹5,000 | ₹238.10 | ₹535.71 | ₹762.71 | ₹1,093.75 |
For an eligible intra-state transaction, GST may be divided equally between CGST and SGST. For example, an 18% GST rate can consist of 9% CGST and 9% SGST.
Total GST rate is 18%.
Half of the 18% GST.
The other half of the 18% GST.
| Calculation Type | Example |
|---|---|
| GST Added | ₹100 + 18% GST = ₹118 |
| GST Included | ₹118 already contains ₹18 GST and ₹100 taxable value |
This distinction is important when checking an existing invoice, bill, receipt or GST-inclusive selling price.
Find the taxable value and GST included in an invoice when you only know the final amount.
Quickly determine how much GST is included in a GST-inclusive purchase price.
Separate the taxable amount and GST before recording an eligible transaction.
Work backwards from a GST-inclusive selling price to find its pre-GST value.
Calculate GST, create professional invoices and download your invoice as a PDF with InvoiceSetu.
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