GST Calculator NZ
Add 15% GST to a price, or find the GST inside a GST-inclusive amount. Results update as you type and are rounded to the cent.
- Excluding GST
- $100.00
- GST (15%)
- $15.00
- Including GST
- $115.00
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How it works
- Adding GST: multiply the GST-exclusive amount by 1.15. The GST is the amount multiplied by 0.15.
- Removing GST: divide the GST-inclusive amount by 1.15. The GST is the inclusive amount multiplied by 3 and divided by 23.
These are estimates for planning and comparing quotes, not a substitute for a professional's measurements.
Common questions
What is the GST rate in New Zealand?
15%. It has been 15% since 1 October 2010 and applies to most goods and services sold in New Zealand.
How do I work out the GST in a GST-inclusive price?
Multiply the price by 3, then divide by 23. For example, $115 including GST contains $15 of GST, so the price excluding GST is $100.
When does a business have to register for GST?
When its turnover is more than $60,000, or is expected to be, over 12 months. Businesses below that can choose to register. Check Inland Revenue's guidance for your situation.
Is anything GST-exempt?
Some supplies are, including residential rent and most financial services. Exports are usually zero-rated. Ask an accountant if you are not sure how GST applies to your business.