GST Calculator
How much GST is in this price?
Since 22 September 2025 most goods and services are taxed at 5% or 18%, with 40% on a short list of luxury and sin goods. Choose whether your amount is before GST or already includes it, pick the rate, and see the tax and the total. Within one state the tax is split equally into CGST and SGST; between states it is charged as IGST.
GST amount
₹1,800
Indicative only. Your lender’s figures may differ. Nothing you enter here is sent anywhere or stored.
How It's Calculated
GST = price before GST × rate ÷ 100
To take GST out of a price that already includes it, the price before GST is the inclusive price ÷ (1 + rate ÷ 100); the difference is the GST.
Within one state the GST is split equally into CGST and SGST. Between states the whole amount is IGST. The total is the same either way.
Worked Example
If you enter
- Amount₹10,000
- GST rate18% (standard rate)
- My amount isBefore GST (add GST)
You get
- GST amount₹1,800
- Price before GST₹10,000
- Price including GST₹11,800
- CGST and SGST, each₹900
These are the calculator's starting values. Change them above to see your own.
Common Questions
What are the GST rates now?
Since 22 September 2025: 5% for essentials and many everyday goods and services, 18% as the standard rate, and 40% for luxury and sin goods such as pan masala and large cars. The old 12% and 28% slabs were removed. Gold and jewellery are 3%. Some items are exempt. The rate for a specific item is on the invoice or the CBIC rate list.
How do I remove GST from a price that already includes it?
Divide the price by 1 plus the rate. For ₹1,180 at 18%: 1,180 ÷ 1.18 = ₹1,000 before GST, so the GST is ₹180. Choose "Including GST" above and the calculator does this for you.
What is the difference between CGST, SGST and IGST?
They are how one GST is shared between governments. When buyer and seller are in the same state, half goes to the centre (CGST) and half to the state (SGST). Between states, the whole amount is IGST. The total you pay is the same.
Guides in Plain Words
Short reads that explain how it works before you decide.
