GST Calculator
Add or remove 10% GST from any amount instantly — useful for invoicing, budgeting, and checking receipts.
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Total (including GST)
$0.00
Amount (excluding GST)$0.00
GST (10%)$0.00
Do you need to register for GST?
Standard business threshold$75,000 turnover/year
Non-profit organisations$150,000 turnover/year
Taxi / rideshare driversNo threshold — register from day one
Registration deadlineWithin 21 days of crossing the threshold
This is an estimated one. Consult a tax professional for your specific situation.