Tax & salary
GST Calculator
Add GST to a base price, or work out the base price and tax hidden inside a GST-inclusive amount.
Amount & rate
Breakup
Total (with GST)
₹0
Base amount₹0
GST amount₹0
CGST₹0
SGST₹0
How GST is calculated
GST is a percentage tax added on top of the base price of goods or services. For intra-state supply, the rate is split evenly into CGST and SGST; for inter-state supply it applies as a single IGST at the same total rate.
Adding GST: GST amount = Base × (rate ÷ 100); Total = Base + GST amount
Removing GST: Base = Total ÷ (1 + rate ÷ 100); GST amount = Total − Base
Removing GST: Base = Total ÷ (1 + rate ÷ 100); GST amount = Total − Base
Frequently asked
What are the GST slabs in India?
The commonly used slabs are 5%, 12%, 18% and 28%, alongside a 0% rate for exempt goods and a few special rates for specific categories.
What's the difference between adding and removing GST?
Adding starts from a base price and computes the tax and total. Removing starts from a GST-inclusive total and works backward to the base price.
Related calculators
Figures are estimates for planning purposes only and do not constitute tax advice.