GST Calculator New Zealand (15%)
Add or remove GST from any NZD amount. The rate is editable, and the formulas below show the arithmetic so you can check any invoice by hand.
- Free
- No sign-up
- Nothing uploaded
- Updated for 2026
- Last reviewed October 2026
- Reviewed by the Owoode team
- NZ$ NZD
- GST 15%
- IRD number
- A4
- English
Standard rate in New Zealand is 15%.
Total with GST
$1,150.00
- Net amount$1,000.0087%
- GST$150.0013%
- Net amount
- $1,000.00
- GST at 15%
- $150.00
- Gross amount
- $1,150.00
Reduced rates, zero rates and exemptions
GST is charged at the standard 15% rate on most supplies. Some supplies are zero-rated, which means GST is charged at 0% but the seller can still claim GST on its costs. The examples given by Inland Revenue are exported goods, sales of a going concern, and certain sales of land where set criteria are met. Zero-rated sales are included in total sales and shown separately in Box 6 of the GST return.
Exempt supplies are different: no GST is charged, they are left out of the GST return, and GST on costs linked to them cannot be claimed. Examples are financial services such as loan interest and bank fees, and donated goods and services sold by not-for-profit organisations.
How to calculate GST in New Zealand
Add: tax = net × 0.15; gross = net × 1.15.
Remove: net = gross ÷ 1.15; tax = gross − net.
Standard rate in New Zealand is 15%.