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🧾 GST Calculator

How to use: Enter an amount, pick a GST rate and choose whether to add GST or remove it from a GST-inclusive price. Results update as you type.

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About the GST Calculator

Work out GST in seconds. Enter an amount, pick a rate and choose whether to add GST to a price or remove it from a GST-inclusive price. The calculator shows the net amount, CGST and SGST for sales within a state, and IGST for sales between states.

From 22 September 2025, most goods and services in India fall under the 5% and 18% GST slabs, with a 40% rate for selected luxury and sin goods. Special rates such as 3% still apply to some items, so a custom rate is available too.

How to use the GST Calculator

  1. Enter the amount in rupees.
  2. Pick a GST rate, or choose Custom and type any rate.
  3. Choose Add GST, or Remove GST if the price already includes tax.
  4. Read the CGST + SGST and IGST breakup, which updates as you type.

Features

  • Add or remove GST
  • CGST, SGST and IGST breakup
  • 5%, 18%, 40% and custom rates
  • Instant results, free

Frequently asked questions

How do I calculate GST on an amount?

Multiply the amount by the GST rate and divide by 100. For ₹1,000 at 18%, GST is ₹180 and the total is ₹1,180.

How do I remove GST from an inclusive price?

Divide the price by 1 plus the rate. For ₹1,180 at 18%, the net price is 1,180 ÷ 1.18 = ₹1,000 and the GST is ₹180.

When do CGST and SGST apply instead of IGST?

CGST and SGST (half the rate each) apply when the seller and the place of supply are in the same state. IGST applies to supplies between states.

What are the current GST slabs?

Since 22 September 2025 the main slabs are 5% and 18%, with 40% for selected luxury and sin goods, plus special rates for a few items. Check the official notification for your product's HSN or SAC code.

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