GST / VAT Calculator
Add tax or extract tax instantly. Runs in your browser. No upload. No data stored.
Tax Amount: 0.00
Total (After Tax): 0.00
Net (Before Tax): 0.00
Tip: Use “Add Tax” when amount is without tax. Use “Extract Tax” when amount already includes tax.
How does GST/VAT calculation work?
If your amount is tax-exclusive, tax is calculated as Tax = Amount × (Rate/100), and total becomes Total = Amount + Tax.
How to extract tax from a tax-inclusive amount?
If your amount already includes tax, net is calculated as Net = Total / (1 + Rate/100). Then Tax = Total − Net.
Is this tool safe?
Yes. This calculator runs fully in your browser and does not upload or store your values.
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