Free Tool

New Zealand GST Calculator

Add or remove 15% GST at New Zealand's standard rate, with the net, GST and gross in NZD instantly.

This free New Zealand GST calculator adds or removes GST at New Zealand's standard rate of 15%. Enter an amount in NZD, choose Add or Remove, and it shows the net amount, the GST and the gross total instantly. No sign-up, and nothing leaves your browser.

Net (excl. GST)1,000.00 NZD
GST (15%)150.00 NZD
Gross (incl. GST)1,150.00 NZD

Adding 15% GST (New Zealand) to your net amount.

How to add 15% GST

Multiply the net amount by 0.15 to get the GST, then add it on. For example, 1,000.00 NZD net + 150.00 NZD GST = 1,150.00 NZD gross.

How to remove GST from a price

Divide the GST-inclusive amount by 1.15. For example, 1,000.00 NZD including GST ÷ 1.15 = 869.57 NZD net, so the GST is 130.43 NZD. Subtracting 15% of the gross instead would give 850.00 NZD, which understates the net amount. It's the most common GST mistake.

15% GST on common amounts

Net (NZD)GST (15%)Gross
100.00 NZD15.00 NZD115.00 NZD
500.00 NZD75.00 NZD575.00 NZD
1,000.00 NZD150.00 NZD1,150.00 NZD
5,000.00 NZD750.00 NZD5,750.00 NZD
10,000.00 NZD1,500.00 NZD11,500.00 NZD

About GST in New Zealand

GST (goods and services tax) is a consumption tax charged on most goods and services. It works the same way as VAT: businesses charge it on their sales and generally claim credits for the GST they pay on purchases.

The standard rate in New Zealand is 15%, charged in NZD. Reduced or zero rates may apply to some goods and services. Use the calculator's custom rate for those, and confirm current rates with the tax authority before you file.

Frequently asked questions

What is the GST rate in New Zealand?

The standard GST rate in New Zealand is 15%. Some goods and services may be taxed at a reduced or zero rate, so check the rate that applies to what you sell.

How do I add 15% GST to a price?

Multiply the net price by 0.15 to get the GST, then add it on. For example, 1,000.00 NZD net plus 150.00 NZD GST is 1,150.00 NZD gross.

How do I remove GST from a price in New Zealand?

Divide the GST-inclusive price by 1.15. For example, 1,000.00 NZD including GST is 869.57 NZD net and 130.43 NZD GST. Don't just subtract 15% of the gross; that gives 850.00 NZD, which is wrong.

Is this New Zealand GST calculator free?

Yes. It's completely free, needs no sign-up, and runs entirely in your browser.

Asia-Pacific: other VAT & GST calculators

Need GST handled inside your own system?

We build billing, POS, invoicing and accounting apps with GST, e-invoicing and tax reporting built in, as web or mobile apps, for businesses worldwide. Tell us what you need and get a free quote.