GST Calculator

Add or remove GST at any rate, with the CGST + SGST split for same-state sales and IGST for inter-state.

Same-state sales split tax 50/50 into CGST & SGST; inter-state sales attract full IGST.
Total (with GST)
₹0
GST amount₹0
Base (taxable value)₹0
CGST (½)₹0
SGST (½)₹0

How to use the GST calculator

  1. Enter the amount and pick the GST rate.
  2. Choose inclusive or exclusive.
  3. Pick same-state or inter-state to see CGST/SGST or IGST.

About this tool

Works both ways: add GST to a base price, or extract GST from an inclusive price. Shows the split your invoice needs.

Built and reviewed by Savitar Finance (savitarfinance@gmail.com). Rules and rates last checked October 2026. How we calculate · Report a problem

Questions people ask

What is the difference between CGST/SGST and IGST?

Within a state, GST is split equally into CGST and SGST. Between states, the full GST is charged as IGST.

How do I remove GST from an inclusive price?

GST = price − price ÷ (1 + rate/100). The rest is the taxable value.