Free GST Calculator

Add or remove GST in seconds and see the CGST + SGST split. Built by the team behind Invodo.

Enter an amount, pick a GST rate, and choose whether the amount is exclusive or inclusive of GST. This calculator runs entirely in your browser.

Amount is
Base amount
CGST
SGST
Total GST
Total amount

Frequently asked questions

For intra-state sales, GST is split equally into CGST and SGST. For example, 18% GST is 9% CGST + 9% SGST. For inter-state sales it is charged as a single IGST.
The standard GST slabs are 0%, 5%, 12%, 18%, and 28%. 18% is the most common rate for many goods and services.

Create GST invoices automatically

Stop calculating by hand — Invodo applies the right GST on every invoice. Start free.