GST Calculator NZ
Add 15% GST to a net price or remove GST from an inclusive total. Free, no sign-up, runs entirely in your browser.
New Zealand GST is a flat 15% on most goods and services.
Figures rounded to 2 decimals (cents). Verify treatment of zero-rated and exempt supplies against current Inland Revenue guidance.
How to add or remove GST in New Zealand
New Zealand GST is a flat 15%. To add GST to a net price, multiply by 1.15: a NZ$100 job becomes NZ$115 including GST. To remove GST from a price that already includes it, divide by 1.15: NZ$115 ÷ 1.15 = NZ$100 net, with NZ$15 of GST.
A handy cross-check: the GST component of a GST-inclusive price is exactly 3/23 of the total (because 15/115 simplifies to 3/23). On NZ$230 inclusive, the GST is NZ$30.
Most goods and services are taxed at 15%. A small set of supplies is zero-rated, such as exported goods and services, and some are exempt, such as financial services, residential rent and donated goods sold by non-profits. Businesses must register for GST once taxable turnover reaches NZ$60,000 in any 12-month period.
Frequently asked questions
What is the GST rate in New Zealand?
A single flat rate of 15% applies to most goods and services. It has been 15% since 1 October 2010. Exports are generally zero-rated; financial services and residential rent are exempt.
How do I remove GST from an inclusive price?
Divide by 1.15: NZ$115 ÷ 1.15 = NZ$100 net and NZ$15 GST. The GST portion of an inclusive price is 3/23 of the total. Switch this calculator to "Remove GST" mode to do it in one step.
When do I need to register for GST?
When your taxable turnover is NZ$60,000 or more in any 12-month period, or when you expect to reach NZ$60,000 in the coming 12 months. Below that, registration is voluntary.
How do I add 15% GST to a price?
Multiply the net price by 1.15: NZ$100 becomes NZ$115. To get just the GST component, multiply the net price by 0.15.
Is this GST calculator free?
Yes. Free, no sign-up, and every calculation runs locally in your browser. Nothing you type is uploaded.