GST calculator

Calculator icon

This calculator explains:

  • How to calculate GST (goods and services tax) in Australia
  • The amount of GST you will pay or should charge customers
  • The price excluding GST and the total cost including GST

Estimated time: 10 sec

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About this calculator - assumptions & further information

If you are registered for GST, or required to be, the goods and services you sell in Australia are generally taxable unless they are GST-free or input-taxed.

This calculator can help when you're making taxable sales only (that is, a sale that has GST in the price).

A taxable sale must be:

  • for payment of some kind
  • made in the course of operating your business
  • connected with Australia.

The Australian Taxation Office website explains in more detail how the goods and services tax (GST) works.


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Last updated: 06 Mar 2017