GST Calculator NZ

Use this free GST calculator to instantly add, remove or find GST on any price in New Zealand.

How to use this GST calculator

Select your mode at the top. Add GST if you have a price without GST and need the total. Remove GST if you have a GST-inclusive price and need the ex-GST amount. Find GST if you want to know the GST component inside a total. Enter your amount and results appear instantly. Hit Copy to grab any figure straight to your clipboard for invoices or quotes.

How do you calculate GST from a total NZ?

To find the GST component inside a GST-inclusive total, multiply the total by 3 then divide by 23. This is the IRD-prescribed method. For example $115 multiplied by 3 equals $345, divided by 23 equals $15 GST. The ex-GST price is $115 minus $15 equals $100. Our Find GST mode does this automatically.

How do I calculate the GST from an amount?

If you have a price excluding GST, multiply it by 0.15 to get the GST amount. Then add the GST to your original price to get the GST-inclusive total. So $100 multiplied by 0.15 equals $15 GST, and $100 plus $15 equals $115 including GST. Use our Add GST mode to do this instantly.

Is GST in NZ 15%?

Yes. New Zealand GST has been 15% since 1 October 2010, when it was raised from 12.5% by the National government. The 15% rate applies to most goods and services. Some supplies are zero-rated at 0% — mainly exports and the sale of a going concern. Residential rent and most financial services are exempt from GST entirely.

How do I take GST off a price?

Divide the GST-inclusive price by 1.15. This gives you the price before GST. For example $230 divided by 1.15 equals $200 excluding GST. The GST component is $30. Use our Remove GST mode to calculate this instantly for any amount.

When do I need to register for GST in NZ?

GST registration is compulsory when your business turnover exceeds $60,000 in any rolling 12-month period. Turnover means total sales, not profit. You have 21 days from crossing the threshold to register with IRD. You can register voluntarily below $60,000 if it makes sense for your business — particularly useful if most of your customers are GST-registered businesses who can claim back the GST anyway.

How often do I file a GST return?

Most NZ businesses file two-monthly. IRD defaults new registrations to two-monthly. Six-monthly filing is available if your turnover is under $500,000, but is not recommended — waiting six months means a larger lump sum payment and it's easy to spend the money before the bill arrives. Monthly filing is compulsory if your turnover exceeds $24 million.

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Frequently asked questions

What is the GST rate in New Zealand?

15% since 1 October 2010. It was previously 12.5%.

How do I add GST to a price in NZ?

Multiply by 1.15. So $200 plus GST equals $230.

How do I remove GST from a price in NZ?

Divide by 1.15. So $230 divided by 1.15 equals $200 excluding GST.

What is zero-rated GST in NZ?

Some supplies are charged at 0% GST rather than 15%. These include exports, international transport, and the sale of a going concern. Zero-rated is different from exempt — zero-rated businesses can still claim back GST on their expenses.

What is exempt from GST in NZ?

Residential rent, most financial services, and some donated goods sold by non-profits are exempt from GST. Exempt suppliers cannot register for GST or claim GST on their expenses.