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GST Calculator
Add or remove GST from any amount at standard tax slabs — free, instant, entirely in your browser.
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Adding vs removing GST
'Add GST' treats your entered amount as the pre-tax base and adds tax on top. 'Remove GST' treats your entered amount as the tax-inclusive total and works backward to find the base price — these use different formulas, not simple subtraction in reverse.
Frequently asked questions
'Add GST' treats your entered amount as the pre-tax base and adds tax on top. 'Remove GST' treats your entered amount as the tax-inclusive total and works backward to find the base price.