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GST calculator

Quickly see how much GST is in an amount, or add GST to a price that excludes it.

We’ll show both the GST-exclusive and GST-inclusive calculations for the amount you enter.

Amount includes GST

Remove GST from your entered total.

Amount including GST
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GST portion (3/23)
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Amount excluding GST
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Amount excludes GST

Add GST to your entered price.

Amount excluding GST
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GST at 15%
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Amount including GST
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GST calculations are based on New Zealand’s standard 15% GST rate.