Add or remove, it's just 15%
GST in New Zealand is a flat 15%. To add it, multiply a GST-exclusive price by 1.15. To remove it from a tax-inclusive price, divide by 1.15 — the difference is the GST baked in. The calculator handles both and shows all three figures.
Common questions
New Zealand GST is a flat 15% on most goods and services.
Divide the GST-inclusive price by 1.15 to get the GST-exclusive amount. The difference is the GST. The calculator does this for you.
Businesses must register once turnover passes $60,000 a year. Below that, registration is optional.