How the calculation works
Adding GST: total = amount × (1 + rate). Removing GST: price before GST = amount ÷ (1 + rate). CGST and SGST are each half of the GST.
Frequently asked questions
Which GST rate applies?
It depends on the goods or service. Check the official rate list.
What about IGST?
For inter-state sales the whole GST amount is IGST, which equals the CGST plus SGST shown here.