Makes working with Australian GST (goods and services tax) really easy - even reverse GST calculations.

- Add GST, or reverse it from any amount
- Automatic calculations as you type
- Basic +/- calculations if you need the total GST across a few items
- Simple and easy to use design with Dark Mode support on iOS13

Just start typing to add GST to any amount, or tap “Including GST” to do a reverse GST calculation.
Tap C or AC to clear, just like on your calculator

Australian GST Calculator is useful for businesses, shoppers and travellers.


Feedback is always welcome:

What’s New

Version 4.1

Dark mode support on iOS 13

App Privacy

The developer, Almost Antarctic, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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