HOW GST WORKS
Adding GST
When GST is added to a base price, the GST amount is calculated as a percentage of that original amount.
GST = Base Amount × GST Rate ÷ 100
Final Amount = Base Amount + GST
FINANCE
GST Calculator
Add or remove GST instantly and see the base amount, GST, CGST, SGST and final amount.
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ENTER DETAILS
Calculate GST instantly.
Enter an amount, choose the GST rate and decide whether GST should be added or removed.
Calculation
₹
GST rate
Selected rate
18% GST
For a standard intra-state split, the GST amount is shown equally as CGST and SGST.
FINAL AMOUNT
₹11,800.00
GST of 18% has been added to the original amount.
Base amount₹10,000.00
GST₹1,800.00
Final amount₹11,800.00
CGST
₹900.00
9%
SGST
₹900.00
9%
QUICK EXAMPLES
See how GST changes the price.
REMOVING GST
Finding the price before GST
If the amount already includes GST, you cannot simply subtract the GST percentage from it. The original taxable amount must be calculated first.
Original = Inclusive Amount ÷ (1 + Rate ÷ 100)
This calculator is provided for general informational purposes. Actual GST treatment can depend on the nature of the transaction, applicable tax rules, place of supply, exemptions and other factors. For tax compliance decisions, consult a qualified professional.
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FAQ
GST calculator questions
How do I add GST to a price?
Enter the original price, select the GST rate and choose Add GST. The calculator immediately shows the GST amount and final price.
How do I remove GST from an inclusive price?
Enter the amount that already includes GST and choose Remove GST. The calculator derives the original taxable amount and GST component.
What are CGST and SGST?
For an applicable intra-state transaction, GST can be split between CGST and SGST. This calculator displays an equal split of the GST component.
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