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New Zealand Reverse GST Calculator.
Pre-loaded with the standard GST rate of 15% and default currency symbol NZ$.
$
+0.00%
5.0%
%
Pre-Tax Base Price
$ 0.00
Tax / VAT Extracted
$ 0.00
Calculated backwards in real-time
Understanding GST in New Zealand.
The standard Goods and Services Tax (GST) rate in New Zealand is 15%. This calculator isolates the net value and GST amount from any gross purchase total using standard international calculation guidelines.
How to Back Out VAT/GST in New Zealand
To calculate the pre-tax net cost (base amount) from a gross total that includes a standard 15% GST, apply the reverse VAT calculation formula:
Net Price = Gross Amount / (1 + (15 / 100))
Which simplifies to dividing the total by 1.15.
For example: If you paid a total of NZ$120.00 inclusive of 15% VAT:
- Divide the gross amount:
NZ$120.00 / 1.15 = NZ$104.35(Net Price). - Subtract the net amount from total paid to extract the tax portion:
NZ$120.00 - NZ$104.35 = NZ$15.65(Extracted tax).