Why my invoice shows CGST and SGST, or IGST

Last updated: 2 Nov 2026

When you and the buyer are in the same state, the GST is split into CGST and SGST. When the states are different, IGST is used.

Steps

1. Open the invoice form.
2. Check Your state and Buyer state.
3. Same state: you see CGST and SGST.
4. Different states: you see IGST.
5. If a state was wrong on a created invoice, cancel it and create a new one.

Common mistakes

• Leaving the state empty. You will see "Select the state for both you and the buyer - GST depends on it."
• Choosing your own state for an outside buyer.

Useful links

• New invoice