GST Calculator
Work out GST-inclusive and GST-exclusive prices at any rate.
Frequently Asked Questions
How is GST calculated on an invoice?
For a GST-exclusive price, multiply by the GST rate to get the tax and add it on. For a GST-inclusive price, divide by (1 + rate) to find the base, and the remainder is the GST component.
What are the common GST slabs?
India uses slabs of 5, 12, 18 and 28 percent depending on the product or service category. Other GST countries differ: Australia charges 10 percent and Singapore 9 percent.
How do I split GST into CGST and SGST?
For intra-state sales in India, GST is split equally: half is CGST and half is SGST. An 18 percent charge becomes 9 percent CGST plus 9 percent SGST on the invoice.
Is the GST Calculator free, and is my data private?
Yes. It is completely free and every calculation runs locally in your browser, so the numbers and dates you enter are never uploaded, stored, or shared with anyone.
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