VAT & Sales Tax Reverse Calculator

Extract net pretax price and exact VAT / sales tax amount from gross tax-inclusive retail figures.

  • 100% free
  • Private in browser
  • No signup
  • No watermarks
Net Pre-Tax Amount ($)
100
Extracted Tax Amount ($)
20

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About VAT & Sales Tax Reverse Calculator

Extract net pretax price and exact VAT / sales tax amount from gross tax-inclusive retail figures. Enter Gross Amount and VAT / Tax Rate and the tool works out Net Pre-Tax Amount and Extracted Tax Amount straight away. Everything runs in your browser, so your data never leaves your device.

How to use VAT & Sales Tax Reverse Calculator

  1. Enter the required input values.
  2. View the instantly calculated results in real time.

Key features

  • Fast client-side calculation
  • Real-time updates
  • Privacy-first design (no data leaves browser)

Frequently asked questions

Is this calculation private?
Yes, 100% of calculations run locally in your web browser. No information is stored or transmitted.
What does the VAT & Sales Tax Reverse Calculator give me?
It works out Net Pre-Tax Amount and Extracted Tax Amount, updating live as you change the inputs.
What do I need to enter?
Just Gross Amount and VAT / Tax Rate. Every field has a sensible default you can start from.
Is my data uploaded anywhere?
No. The calculation runs in your browser with JavaScript — nothing you type is sent to a server or stored.
Does it work on a phone?
Yes. The layout adapts to small screens and needs no app or signup.

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VAT & Sales Tax Reverse Calculator | TheToolss