How do I calculate GST on an amount?

For an amount before GST, multiply the amount by the GST rate divided by 100. Add that tax to the original amount.

How do I remove GST from a total price?

Divide the GST-inclusive amount by 1 + rate/100 to obtain taxable value. GST is the difference between the total and that taxable value.

What is the difference between CGST, SGST and IGST?

CGST and SGST are the central and state components typically used for intra-state supplies. IGST is typically used for inter-state supplies. The applicable treatment depends on GST place-of-supply rules.

Does this tool choose the GST rate for my restaurant?

No. Enter the applicable rate yourself after checking the current official rules and your business circumstances.

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GST Amount Calculator

Calculate tax from a rate and tax-inclusive or tax-exclusive amount you enter.

Your result

Your calculated result

Taxable amount: ₹ —
Total GST: ₹ —
CGST: ₹ —
SGST: ₹ —
Final amount: ₹ —

Enter your values and select calculate gst to see the result. No account is required.

What this tool calculates

This GST calculator separates a tax-inclusive total into taxable value and GST, or adds GST to a tax-exclusive amount. You supply the rate. The same-state option splits the computed tax into CGST and SGST; the different-state option displays IGST. Selecting an option here does not determine the legal place of supply.

How to use gst amount calculator

Check whether the amount already includes GST. Use the same currency and basis throughout.
Enter the applicable rate from your records or the official GST source, then select the supply-location treatment.
Calculate and review taxable value, total tax and final amount. Tax components are rounded to paise and their sum matches total GST.

How the calculation works

Exclusive: GST = amount × rate ÷ 100. Inclusive: taxable value = gross ÷ (1 + rate ÷ 100), and GST = gross − taxable value.

Worked example

₹1,000 before GST at an entered 5% rate gives ₹50 GST and ₹1,050 total.

Understanding the result

Adding 5% to a tax-exclusive price differs from extracting 5% from a tax-inclusive price. Do not subtract 5% of the gross total to remove 5% GST. The tool does not classify supplies, determine registration requirements, calculate input tax credit or select an applicable rate.