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CGST / SGST / IGST Calculator

Pick the seller's and buyer's states and see exactly which GST applies and how much.

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How to use the CGST / SGST / IGST Calculator

  1. 1Choose seller and buyer states (or the place of supply).
  2. 2Enter the amount and GST rate.
  3. 3See CGST + SGST or IGST.

How the place of supply decides the tax

If the supplier's state and the place of supply are the same, it's an intra-state supply: CGST + SGST (or UTGST in Union Territories) in equal halves. If they're different, it's inter-state: IGST at the full rate.

Why it matters

Charging the wrong type of GST means the buyer can't take credit and you may have to pay the right tax again and claim a refund of the wrong one.

Frequently asked questions

What is UTGST?

Union Territory GST replaces SGST in UTs without a legislature (like Chandigarh and Ladakh). It works the same way.

Is an export IGST?

Exports are inter-state supplies — zero-rated with IGST (or without payment under LUT).

What about online sales to other states?

Place of supply is generally the delivery address, so a sale to another state is IGST.