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Australian GST Calculator (Add or Remove 10%)

Add 10% GST to a price or find the GST inside a GST-inclusive price (divide by 11).

Tool inputs stay in your browser · optional AI search sends your query

Good to know: GST in Australia is 10%. To add it, multiply by 1.1. To find the GST inside a price, divide the price by 11. Rates checked on 11 November 2026.

How to use it (step by step)

  1. 1Type the amount in Australian dollars.
  2. 2Choose whether the amount already includes GST or not.
  3. 3Read the GST amount and the price with and without GST.

Words to know

GST
Goods and Services Tax: a 10% tax added to most things sold in Australia.
GST-inclusive
The price already has the 10% inside it.
GST-exclusive
The price before the 10% is added.

Explore tools for Australia, the US & Europe →

Sources & methods

References checked November 11, 2026. Read each tool’s scope and assumptions before relying on its result.

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