Growth CircleGST calculator
Add GST to a price, or work backwards from a GST-inclusive amount.
Your estimate
Estimates only, based on the rules shown here as of 28 September 2026 for tax year 2026-27 (assessment year 2027-28). Rules change, so please verify current requirements or ask a professional before acting.
How it works
Adding GST: GST amount is the price multiplied by the rate. Removing GST: divide the GST-inclusive amount by (1 + rate) to get the price before GST. Within a state, GST splits equally into CGST and SGST. Between states it is charged as IGST.
Check the rate
GST rates depend on the item or service and are revised from time to time. Enter the rate that applies to you.
Questions
Which GST rate should I use?
Use the rate that applies to your goods or services under the current notifications. If unsure, ask a professional.
Does this handle cess or reverse charge?
No. It handles a single rate on one amount.
Want this checked properly?
A calculator gives an estimate. We can review your actual documents and give you a computation you can rely on.