GST Inclusive Calculator
Extract the taxable value and GST from a price that already includes GST, such as an MRP or a quote “inclusive of all taxes”.
What is the GST Inclusive Calculator?
A GST-inclusive price contains the tax. You often need the pre-tax value for invoices, input tax credit or accounting.
How does it work?
The taxable value is the inclusive price divided by (1 + rate). GST is the difference between the inclusive price and the taxable value.
Formula
Taxable value = Price × 100 ÷ (100 + Rate)
GST = Price − Taxable value
Example
An inclusive price of ₹11,800 at 18% contains ₹10,000 of value and ₹1,800 GST. Note that GST is not 18% of ₹11,800.
Frequently asked questions
Why can’t I just take 18% of the inclusive price?
Because the tax was calculated on the pre-tax value. 18% of ₹11,800 is ₹2,124, which overstates the GST by ₹324.
What are the current GST rates?
Since 22 September 2025, most goods and services fall under 5% or 18%, with 40% for luxury and sin goods. Special rates of 0.25% and 3% apply to precious stones and metals. The 12% and 28% slabs remain selectable for older invoices.
When is IGST charged instead of CGST + SGST?
IGST applies when the supplier and the place of supply are in different states (and on imports). For supplies within the same state, the rate is split equally into CGST and SGST (or UTGST in union territories).
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