GST Calculator (India)

How to calculate GST

1. Choose whether the amount is before GST or already includes it, and type it in rupees.
2. Pick the GST rate for the goods or service.
3. Choose a supply within one state to split the tax into CGST and SGST, or between states for IGST.

Frequently asked questions

What are the GST rates in India?

Since 22 September 2025 most goods and services are taxed at 5% or 18%, with 40% for a short list of luxury and sin goods. Some items are exempt, gold and silver are taxed at 3% and rough diamonds at 0.25%.

How do I remove GST from an inclusive price?

Divide by 1 plus the rate. At 18%, ₹1,180 ÷ 1.18 = ₹1,000, so the GST is ₹180.

What is the difference between CGST, SGST and IGST?

Within one state, half the GST goes to the central government (CGST) and half to the state (SGST). Between states the whole amount is IGST.