Remove GST Calculator

Calculate the GST-exclusive amount from a GST-inclusive price. Extract the 10% GST component instantly for Australia transactions.

Select Country

Calculation Mode

Add GST

Calculate total with GST added

Remove GST

Extract GST from total price

Reverse GST

Find pre-tax amount

GST Only

Calculate GST amount only

Enter Amount (AU$)

AU$

Australia GST Rate: 10% (current rate for 2026)

Quick examples:

How to Remove GST

Removing GST from a total is straightforward:

Formula: GST-Exclusive Amount = Total ÷ (1 + 0.1) = Total ÷ 1.1

Add GST to base amounts for invoicing and pricing

Find the original amount before GST was applied

Calculate GST for multiple amounts at once

Calculate your Business Activity Statement amounts

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