How to use this nz gst calculator
- Enter the amount in NZ$.
- Choose whether the amount is inclusive or exclusive of GST.
- Select the GST rate, then click Calculate.
- Review the receipt-style breakdown on the right, then use Clear to reset.
What is GST for New Zealand?
New Zealand applies 15% GST on most goods and services. Zero-rated exports and exempt residential rent follow Inland Revenue rules.
Forward and reverse formulas
When you know the price excluding tax:
When you know the tax-inclusive price, work backward:
Example at 15%
If the price excluding GST is NZ$1,000, tax is NZ$150.00 and the price including tax is NZ$1,150.00.
New Zealand tax reference
Confirm current New Zealand rates, exemptions, and filing rules with the Inland Revenue New Zealand before lodging returns. This calculator uses headline standard rates for estimation only.
GST vs sales tax vs VAT
Goods and services tax (GST) and value-added tax (VAT) are multi-stage consumption taxes with input-tax credits for registered businesses. Sales tax (common in the United States) is typically charged once at retail. This calculator focuses on single-rate GST/VAT math — verify exemptions and filing rules with your local revenue authority.
More GST calculators
Explore country-specific and rate-specific GST tools, or read the full GST calculator guide for formulas and jurisdiction notes.
- By country
- By rate ($)
Also see our Sales Tax Calculator for U.S. state and local rates.