New Zealand GST calculator (15%)
Add GST at the standard 15% rate to a net price, or work out the GST already included in a GST-inclusive total — in NZD. The calculator below is free, needs no sign-up, and runs entirely in your browser.
Rates are pre-filled for convenience but always editable. Verify the current rate with your country's tax authority. Calculator results are estimates only, not professional advice.
How New Zealand GST is calculated
Adding GST: multiply the net price by 1.15. A NZD 100 item becomes NZD 115.00 once 15% GST is added.
Removing GST: divide the GST-inclusive total by 1.15. From NZD 115.00 inclusive, the net is NZD 100 and the GST portion is NZD 15.00.
The standard rate is 15%, but reduced or zero rates can apply to particular goods and services. For anything you file or charge, confirm the current rate and rules with the relevant New Zealand tax authority.
New Zealand GST FAQ
- What is the GST rate in New Zealand?
- The standard GST rate in New Zealand is 15%. Reduced or zero rates may apply to specific goods and services.
- How do I add GST to a price in New Zealand?
- Multiply the net amount by 1.15. For example, NZD 100 plus 15% GST is NZD 115.00.
- How do I work out the GST included in a price?
- Divide the GST-inclusive total by 1.15 to get the net amount; the difference is the GST. For NZD 115.00 inclusive, the net is NZD 100 and the GST is NZD 15.00.
- Is the New Zealand GST calculator free?
- Yes. The New Zealand GST calculator is free and runs entirely in your browser — no sign-up, nothing uploaded.