GST Calculator

Add or remove GST (5%, 12%, 18%, 28%) from any amount — see GST amount and total instantly.

Amount: GST rate:

Custom rate (%):

—GST amount

—Net amount

—Total amount

How to use

Enter the amount, pick a GST rate (or type a custom one), choose Add or Remove GST, and click Calculate.

What GST rates are supported?

Preset buttons for 5%, 12%, 18% and 28%, plus a custom rate field.

Add vs remove GST?

'Add GST' computes tax on a tax-exclusive price. 'Remove GST' extracts the tax from a tax-inclusive price.

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