Extract GST from a total price
Work backward from a GST-inclusive price to find the original base price and the tax amount.
Calculated in your browser. Nothing you enter is sent to a server.
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GST-inclusive amount
GST rate
Supply type
Base price
₹10,000
GST amount₹1,800
CGST₹900
SGST₹900
Calculated in your browser. Nothing is sent anywhere.
01
Enter the GST-inclusive amount
The total price you actually paid or charged.
02
Pick the GST rate
A standard slab or a custom rate.
03
Read the base price
The original price before tax, plus the tax amount.
Frequently asked
When would I need this instead of the GST Calculator?
When you only know the final, tax-inclusive price (for example from a receipt) and need to work out what portion was the base price versus tax.
How is the base price calculated?
Base price = total ÷ (1 + rate/100). It's the inverse of adding GST on top of a base price.