Reverse GST Calculator

Remove GST or VAT from a price that already includes it, to get the net price and the tax amount.

Quick answer: Reverse GST Calculator: Remove GST or VAT from a price that already includes it, to get the net price and the tax amount. Everything runs in your browser, so nothing you enter is uploaded or stored.

How to use Reverse GST Calculator

  1. Enter your values in the fields.
  2. The results update instantly as you type.
  3. Note or copy the numbers you need.

Features

Frequently asked questions

How do I remove GST?

Net price = gross price / (1 + rate / 100). The tax is gross minus net.

Why not subtract the percentage?

Because the tax was added on the net price, not on the gross.

Is the Reverse GST Calculator free?

Yes. It is free, needs no signup and works on any device.

More free tools