Wanting a quick and easy way to calculate various Australian tax liabilities? Tried to do it online but there is too many places to go or you couldn't get internet service to use them? Tried other tax apps from the app store and they only do part of the job, or even worse give the wrong result? my Tax is the app for you!

my Tax has been developed by an Australian Chartered Accountant for your Australian iPhone and iPad. my Tax can be used to calculate:
- Annual personal tax liability (including HELP, tax withheld, medicare levy and low income rebate)
- Period PAYG Withholding (weekly, fortnightly, monthly and quarterly) including HELP, leave loading and tax free threshhold
- The benefit of salary sacrificing a vehicle using the statutory method or logbook method
- The benefit of salary sacrificing superannuation
- Goods and Services Tax (GST) based on an entered GST exclusive or inclusive amount and allowing for any GST free amounts
- Fringe Benefits Tax (FBT) payable based on entered Type 1 and Type 2 total benefit amounts
- Loan calculator to work out the amount of a loan repayment, the remaining number of payments or the amount you can borrow based on other information entered.
- Key tax rates summary for quick access to tax rates you need on the go
- my Pay calculator to work out what you will get paid.
- Capital Gains Tax (CGT) calculator for individuals to work out the extra tax you will pay if you sell your shares, investment property or other capital asset for a profit.

Other features include
- Status bar updates in iPhone as you type to give you the result
- Ability to generate PDF reports
- Print reports directly from your device to supported printers
- Built in calculator with quick tax calculator functions
- customisable tabs to put your four most used calculators on the main screen

As an accountant I am using the app in my daily work whilst on the phone and out visiting clients.

You too can use it whether your an individual looking to work out your tax or the benefits of salary sacrifice, a bookkeeper working out GST for data entry through to an accountant dealing with clients.


Extreme care has been taken to ensure the calculator gives accurate results. However, calculations should be considered indicative only and professional advice sought specific to your circumstances.

What’s New

Version 10.0

Updated for 2017 tax rates

Ratings and Reviews

4.0 out of 5
8 Ratings

8 Ratings

garuda3 ,

Works fine

Works fine

Developer Response ,

Thanks for letting us know, this was fixed in the 9.0.1 update

Philbury ,

Works with no fuss

Easy to use and accurate. Has the right options to get an accurate answer without fuss or bother. Thoroughly recommended.

James Young ,

Useful, but a bit too simple

This app basically reproduces the ATO's own simple income tax calculator adding in useful info (such as HECS/HELP rates) to help out. Since it is an app primarily for income tax calculations (as far as I can tell), I think the first thing that needs improving is the option for more complex calculations. This should include calculating deductions and depreciation of key assets and working out whether the full Medicare Levy Surcharge is needed.

The other aspect of this app that needs improvement is the user interface. The 'rates' section, for instance has the scroll index writing so small on an iPhone that you can't easily jump straight to where you want to, while having to hold down what just looks like a background graphic to print reports or email them seems rather counter-intuitive - almost as if it's some sort of 'easter egg' option, rather than a major part of the application.

If you need a portable, internet-free calculator for income tax then perhaps the $8 is worth it. For now though, you can get equal or better results online through the ATO's own calculators, unfortunately.


A Squared Enterprises Pty Ltd
9.3 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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