GST/VAT Calculator
Add or remove GST/VAT from any amount. Support for custom tax rates with instant results.
Documentation
GST and VAT are consumption taxes applied to goods and services. They are calculated as a percentage of the selling price.
Invoicing, price comparison, tax filing, business accounting, and shopping calculations.
- 1) Choose Add Tax or Remove Tax mode.
- 2) Enter the amount and tax rate.
- 3) View the tax and total instantly.
FAQs
GST and VAT are consumption taxes applied to goods and services, calculated as a percentage of the price.
Multiply base price by (1 + tax rate/100). Example: $100 + 18% = $118.
Divide total price by (1 + tax rate/100). Example: $118 ÷ 1.18 = $100.
No. All calculations happen locally in your browser. Your data is never uploaded or stored.
Yes. Completely free with no signup or limits.
Last updated: 2026-08-04
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