GST Calculation Formulas:
The standard New Zealand GST rate is 15%, applied to most goods and services.
The New Zealand GST Calculator allows you to quickly add or remove 15% Goods and Services Tax (GST) from any price. Whether you are a business owner, freelancer, online seller, or consumer, this tool makes it easy to calculate GST-inclusive and GST-exclusive prices in seconds.
In New Zealand, the standard GST rate is 15%, applied nationwide to most goods and services. This calculator is suitable for every region in New Zealand, as GST is uniform across the country.
With this calculator you can:
Add 15% GST to a price
Remove GST from a GST-inclusive price
Calculate the exact GST amount
Convert between GST-exclusive and GST-inclusive prices
Enter the price without GST, or
Enter the price including GST.
The calculator will automatically show:
the GST amount, and
the total price including GST.
You only need to fill in one field, and the calculator computes the other values automatically.
GST (Goods and Services Tax) is a value-added tax introduced in New Zealand in 1986. Key facts about GST:
Standard rate is 15%
Applies to most goods and services sold in the country
Businesses registered for GST must collect GST on sales
Businesses can claim GST credits on business-related purchases
Most retail prices shown to consumers already include GST, but this tool helps you calculate it for invoices, quotes, or accounting purposes.
Add GST
Price with GST = Price without GST × 1.15
GST Amount
GST = Price without GST × 0.15
Remove GST
Price without GST = Price with GST ÷ 1.15
This calculator performs these calculations automatically.
A GST calculator is useful for:
Preparing business invoices
Pricing products or services
Checking tax amounts on receipts
Calculating GST for online stores
Accounting and bookkeeping purposes
It is widely used by businesses, freelancers, online sellers, and consumers throughout New Zealand.
What is the GST rate in New Zealand?
The standard GST rate is 15%.
Do all regions in New Zealand have the same GST rate?
Yes, GST is applied nationwide at 15%.
How do I remove GST from a price?
Divide the GST-inclusive price by 1.15 to get the GST-exclusive amount.
How do I add GST to a price?
Multiply the price by 1.15 to include GST.
Are most prices shown to consumers GST-inclusive?
Yes. Most retail and service prices already include GST.