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GST Calculator (AU)

Add or remove GST from any amount in seconds. Calculate the GST component, ex-GST price, and inc-GST price at the current 10% rate. Free Australian GST calculator.

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GST-Inclusive Total
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How it works

GST is a flat 10% on most goods and services. To add GST: multiply by 1.1. To remove GST: divide by 1.1. To find the GST component in an inclusive price: divide by 11. Some items (basic food, medical, education) are GST-free.

This calculator provides estimates only and does not constitute financial advice. Verify results with a qualified professional.