Australia & NZ GST Calculator makes Australian and New Zealand Goods and Services Tax calculations easy to do.

Just enter one of three values and the other two will automatically calculate as you type in the number.

Select your preferred input by tapping on the relevant row and then enter the value using the keypad, the results will automatically be calculated for you.

+ Adding GST: If you know the price before adding GST, and you need to know how much GST will be added, and what the final price will be.

+ Removing GST: If you have a price that already includes GST, and you need to know the GST component and the amounts left after GST is removed.

+ GST Only: If you only know the GST amount, and you need to find out what the original price of the item is, both excluding and including GST.

** Australian & NZ GST Calculations **
Switch between Australian and NZ GST rates using the buttons.

** Automatic Calculations **
Results are calculated and displayed as you type.

** Easy Reset **
Tap 'Clear' on the keypad to reset the calculation.

** Universal App **
Australia & NZ GST Calculator automatically works on your iPhone, iPod touch and iPad without having to buy another app.


Feedback is always welcome:

To check what goods and services incur Australian GST, visit

What's New

Version 3.51

Updated interface with easier to use keypad

Note: Australia & NZ GST Calculator will never interrupt your work to ask you to review this app. However if you are feeling generous and have a moment to spare, please take a minute to review the app, it really helps us.


Callum Mcleod
1.8 MB
Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2014 Almost Antarctic


  • Family Sharing

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

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