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About the GST Calculator
Add GST to a price or take it out of a GST-inclusive amount. The calculator shows the net price, the GST amount, the CGST and SGST halves for intra-state sales, and the gross total.
How to use it
- Enter the amount and pick whether it is before GST (add) or includes GST (remove).
- Choose a common GST rate or type your own.
- Read the net amount, total GST, the CGST/SGST split and the gross amount.
Frequently asked questions
Which GST rate applies to my product?
The rate depends on the item or service and the law in force on the invoice date. Check the current GST rate schedule or ask your accountant; the calculator only does the arithmetic.
What is the difference between CGST/SGST and IGST?
Within one state the tax is split equally into CGST and SGST. For sales between states a single IGST of the full rate applies.
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Results are estimates for general information. For financial, tax, medical or legal decisions, check with a qualified professional.