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GST Calculator

Add or remove GST from any amount, with the CGST/SGST split shown.

Calculating CGST, SGST and IGST on an invoice
Taxable value
Total

How GST is calculated

GST is charged on the taxable value of a supply. When your price already includes tax, divide by 1 + rate/100 to get back to the taxable value.

The split depends on where the goods go. Sell within your own state and the tax is halved into CGST and SGST. Sell to another state and the whole amount is charged as IGST.

Tired of calculating by hand?

Make GST invoices free