newzealand • NZD

NZ GST Calculator 2026

Free New Zealand GST calculator 2026. Instantly add or remove 15% Goods and Services Tax (GST) using official Inland Revenue rate. Useful for invoices, Xero, MYOB, business accounting and NZ small businesses.

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Amount & Operation

Amount (NZD)

Enter the price before GST (exclusive) to add GST, or the price including GST (inclusive) to remove GST.

Operation Type

Choose whether to calculate the price with GST from an exclusive amount, or extract the GST from an inclusive amount.

GST Rate (2026)

GST Rate (%)

Current GST rate in New Zealand is 15% (unchanged since 2010). The calculator uses this default, but you can adjust for historical calculations.

Financial Disclaimer: This calculates GST on the amount you enter at the rate you select. It is not tax advice and does not determine whether a supply is standard-rated, zero-rated or exempt, or whether you must register. Check your treatment with Inland Revenue or an accountant. Full disclaimer.

Sources & methodology

Formula:: Add GST to a GST-exclusive price
Reference:: Inland Revenue (IRD)

Calculation type: Rule-based calculation. Figures are taken from Inland Revenue (IRD) — see sources below.

Your entries stay on this device. This calculator runs entirely in your browser — the figures you type are not sent to us or to anyone else. The page itself uses cookies for analytics and advertising, described in the privacy policy.

Formula & methodology

Formula used

Add GST to a GST-exclusive price

Inclusive = exclusive × 1.15

At the standard 15% rate, multiplying by 1.15 gives the price a customer pays.

Remove GST from a GST-inclusive price

Exclusive = inclusive ÷ 1.15

Divide, never subtract 15%. Taking 15% off an inclusive price gives the wrong answer because the 15% was charged on the smaller exclusive figure.

The GST portion of an inclusive price

GST = inclusive × 3 ÷ 23

A shortcut equivalent to inclusive − (inclusive ÷ 1.15), useful when reading GST off a receipt.

Variable definitions

Symbol	Meaning	Unit
Exclusive	GST-exclusive amount. The price before GST is added.	NZD
Inclusive	GST-inclusive amount. The total a customer pays, GST included.	NZD
Rate	GST rate. 15% in New Zealand, unchanged since 1 October 2010. Adjustable here for historical calculations.	%

Step-by-step calculation

1. Identify which figure you have
Decide whether your amount already includes GST — mixing the two up is the most common error.
2. Multiply or divide by 1.15
Multiply to add GST to an exclusive amount; divide to strip GST from an inclusive one.
3. Isolate the GST portion
The difference between the two figures is the GST, which is what appears on a compliant invoice.

Limitations

Assumes a standard-rated supply. Zero-rated supplies such as exports, and exempt supplies such as most financial services and residential rent, are treated differently and are not modelled.
This calculates GST on a single amount. It does not net GST collected against GST paid across a period, which is what a GST return requires.
Registration obligations, filing frequency and the choice between payments, invoice and hybrid accounting bases are outside this calculation.
The rate is user-adjustable for historical work, so entering the wrong rate for a period gives a confidently wrong answer.
Special rules — second-hand goods input credits, imported services and the treatment of land — are not covered.

This page is educational. It applies a standard formula to the figures you enter and shows the arithmetic behind the result. It is an estimate, not an offer, a quotation or financial advice: real costs depend on the provider's pricing, fees and underwriting, and on circumstances this calculator does not collect.

Sources & references

GST rate and how GST works — Inland Revenue (IRD)
Registering for GST — Inland Revenue (IRD)

Help & FAQs

Frequently Asked Questions

Clear answers to common questions to help you use this calculator confidently.

What is the GST rate in New Zealand?

Tap to view the answer

New Zealand's GST rate is 15%, and it has been unchanged since 1 October 2010, when it rose from 12.5%. The calculator defaults to 15% but lets you change the rate if you are checking a historical invoice.

How do I remove GST from a GST-inclusive price?

Tap to view the answer

Divide by 1.15, not by 0.85 — this is the single most common GST mistake. A $115 inclusive price is $100 excluding GST ($115 ÷ 1.15), and the GST portion is $15. Subtracting 15% instead would wrongly give $97.75.

When do I have to register for GST in New Zealand?

Tap to view the answer

Registration is compulsory once your turnover exceeds $60,000 in any 12-month period, or if you expect to pass that threshold. You can register voluntarily below it, which lets you claim GST on business expenses but obliges you to charge GST and file returns. Check current rules with Inland Revenue.

Which supplies are zero-rated or exempt from GST?

Tap to view the answer

Zero-rated supplies — including exported goods and services, and most going-concern land transactions between registered parties — are taxable at 0%, so you still claim GST on related costs. Exempt supplies, such as most financial services and residential rent, carry no GST and do not allow input claims. This calculator assumes a standard-rated supply.

Does the calculator handle GST returns or filing?

Tap to view the answer

No. It works out GST on a single amount so you can price, quote or check an invoice. It does not track GST collected against GST paid across a period, and it does not file anything with Inland Revenue.

Need more help? Contact support or email globalcalqulate@gmail.com

We typically reply within 24–48 hours.

More New Zealand calculators

All New Zealand calculators

How to Use This Calculator

Enter the amount

Input the price you have – before GST (exclusive) or including GST (inclusive).

Select operation type

Choose 'Add GST' if your amount does not yet include tax. Choose 'Remove GST' if the amount already includes GST.

Verify GST rate

The default 15% is the current NZ rate (unchanged since 2010). You can adjust for historical calculations.

Get instant results

See the GST amount and the final price (inclusive or exclusive).

Copy or use for invoicing

Results are ready to be used on invoices, expense claims, or GST returns for IRD.

Understanding Your Results

GST Amount
The tax amount computed as amount × GST% (for add) or amount − (amount ÷ 1.15) (for remove).
Price Before GST (Exclusive)
The original price excluding tax. This is what businesses usually quote for B2B sales and Xero/MYOB entries.
Price Including GST (Inclusive)
The final price consumers pay in retail shops, restaurants, and most services.
GST Rate Applied
15% for 2026. This rate is set by Inland Revenue and applies to most goods and services sold in New Zealand.

Key Tips

✓
Always confirm the applicable GST rate – 15% is the standard rate in NZ.
✓
Use the 'Remove GST' function for retail prices – you'll get the tax-exclusive cost for business records.
✓
For GST‑registered businesses, keep a separate column for GST amounts on invoices.
✓
When exporting goods, remember they are zero‑rated (0% GST) – not exempt.
✓
If your business turnover is near NZ$60,000, monitor monthly to avoid late registration penalties.
✓
Use this calculator for budgeting – remember that GST applies to most consumer purchases except exempt items.
✓
GST-inclusive prices are what consumers see – 15% is already included.
✓
For Xero and MYOB users, this calculator helps verify your software's GST calculations.

New Zealand GST Guide (2026)

What is GST in New Zealand?

Goods and Services Tax (GST) is a value‑added tax levied on most supplies of goods and services in New Zealand. It is administered by Inland Revenue. The current rate is 15%.

GST rate history in New Zealand

GST was introduced at 10% in 1986. It increased to 12.5% in 1989, and to 15% in 2010. The 15% rate has been unchanged since then.

How to calculate GST

To add GST: GST Amount = Price × 15%. Final Price = Price × 1.15. To remove GST from an inclusive price: GST Amount = Price − (Price ÷ 1.15). Price before GST = Price ÷ 1.15.

GST registration threshold

You must register for GST if your business turnover exceeds NZ$60,000 in any 12‑month period, or if you expect it to exceed this threshold. Voluntary registration is allowed for businesses below this threshold.

GST returns and filing frequency

Registered businesses must file GST returns monthly, bi‑monthly, or six‑monthly depending on their turnover. IRD provides online filing through myIR. This calculator helps prepare your returns.

GST-exempt and zero-rated supplies

Exempt supplies include financial services, residential rent, and precious metals. Zero‑rated supplies (0%) include exports and international services. These do not attract GST but have different filing rules.

GST and Xero / MYOB

This calculator is designed to work alongside NZ accounting software like Xero and MYOB. It helps verify GST calculations for invoices, bills, and GST returns.

GST on imports and exports

Imported goods may be subject to GST at the border. Exported goods are generally zero‑rated (0%). Different rules apply for services and digital products.

Common GST mistakes

Common mistakes include: using the wrong rate, not charging GST on taxable supplies, incorrect GST calculations, and missing GST registration deadlines. This calculator helps avoid these errors.

GST and invoicing requirements

Tax invoices must include: GST registration number, date, description, amount before GST, GST rate, GST amount, and total payable. This calculator ensures correct GST amounts.

Disclaimer

This calculator provides general guidance. For official GST filing, refer to Inland Revenue regulations or consult a qualified tax accountant.

Formula & methodology

Formula used

Add GST to a GST-exclusive price

Inclusive = exclusive × 1.15

At the standard 15% rate, multiplying by 1.15 gives the price a customer pays.

Remove GST from a GST-inclusive price

Exclusive = inclusive ÷ 1.15

Divide, never subtract 15%. Taking 15% off an inclusive price gives the wrong answer because the 15% was charged on the smaller exclusive figure.

The GST portion of an inclusive price

GST = inclusive × 3 ÷ 23

A shortcut equivalent to inclusive − (inclusive ÷ 1.15), useful when reading GST off a receipt.

Variable definitions

Symbol	Meaning	Unit
Exclusive	GST-exclusive amount. The price before GST is added.	NZD
Inclusive	GST-inclusive amount. The total a customer pays, GST included.	NZD
Rate	GST rate. 15% in New Zealand, unchanged since 1 October 2010. Adjustable here for historical calculations.	%

Step-by-step calculation

1. Identify which figure you have
Decide whether your amount already includes GST — mixing the two up is the most common error.
2. Multiply or divide by 1.15
Multiply to add GST to an exclusive amount; divide to strip GST from an inclusive one.
3. Isolate the GST portion
The difference between the two figures is the GST, which is what appears on a compliant invoice.

Limitations

Assumes a standard-rated supply. Zero-rated supplies such as exports, and exempt supplies such as most financial services and residential rent, are treated differently and are not modelled.
This calculates GST on a single amount. It does not net GST collected against GST paid across a period, which is what a GST return requires.
Registration obligations, filing frequency and the choice between payments, invoice and hybrid accounting bases are outside this calculation.
The rate is user-adjustable for historical work, so entering the wrong rate for a period gives a confidently wrong answer.
Special rules — second-hand goods input credits, imported services and the treatment of land — are not covered.

New Zealand GST Guide (2026)

What is GST in New Zealand?

Goods and Services Tax (GST) is a value‑added tax levied on most supplies of goods and services in New Zealand. It is administered by Inland Revenue. The current rate is 15%.

GST rate history in New Zealand

GST was introduced at 10% in 1986. It increased to 12.5% in 1989, and to 15% in 2010. The 15% rate has been unchanged since then.

How to calculate GST

To add GST: GST Amount = Price × 15%. Final Price = Price × 1.15. To remove GST from an inclusive price: GST Amount = Price − (Price ÷ 1.15). Price before GST = Price ÷ 1.15.

GST registration threshold

GST returns and filing frequency

Registered businesses must file GST returns monthly, bi‑monthly, or six‑monthly depending on their turnover. IRD provides online filing through myIR. This calculator helps prepare your returns.

GST-exempt and zero-rated supplies

GST and Xero / MYOB

This calculator is designed to work alongside NZ accounting software like Xero and MYOB. It helps verify GST calculations for invoices, bills, and GST returns.

GST on imports and exports

Imported goods may be subject to GST at the border. Exported goods are generally zero‑rated (0%). Different rules apply for services and digital products.

Common GST mistakes

Common mistakes include: using the wrong rate, not charging GST on taxable supplies, incorrect GST calculations, and missing GST registration deadlines. This calculator helps avoid these errors.

GST and invoicing requirements

Tax invoices must include: GST registration number, date, description, amount before GST, GST rate, GST amount, and total payable. This calculator ensures correct GST amounts.

Disclaimer

This calculator provides general guidance. For official GST filing, refer to Inland Revenue regulations or consult a qualified tax accountant.

Calculator inputs

Amount & Operation

GST Rate (2026)

Your results

Sources & methodology

Formula & methodology

Formula used

Add GST to a GST-exclusive price

Remove GST from a GST-inclusive price

The GST portion of an inclusive price

Variable definitions

Step-by-step calculation

Limitations

Sources & references

What is the GST rate in New Zealand?

How do I remove GST from a GST-inclusive price?

When do I have to register for GST in New Zealand?

Which supplies are zero-rated or exempt from GST?

Does the calculator handle GST returns or filing?

Related calculators

More New Zealand calculators

Calculator inputs

Amount & Operation

GST Rate (2026)

Your results

Sources & methodology

How to Use This Calculator

Example: removing GST from a $1,150 invoice

Understanding Your Results

Key Tips

New Zealand GST Guide (2026)

What is GST in New Zealand?

GST rate history in New Zealand

How to calculate GST

GST registration threshold

GST returns and filing frequency

GST-exempt and zero-rated supplies

GST and Xero / MYOB

GST on imports and exports

Common GST mistakes

GST and invoicing requirements

Disclaimer

Formula & methodology

Formula used

Add GST to a GST-exclusive price

Remove GST from a GST-inclusive price

The GST portion of an inclusive price

Variable definitions

Step-by-step calculation

Limitations

Sources & references

How to Use This Calculator

Example: removing GST from a $1,150 invoice

Understanding Your Results

Key Tips

New Zealand GST Guide (2026)

What is GST in New Zealand?

GST rate history in New Zealand

How to calculate GST

GST registration threshold

GST returns and filing frequency

GST-exempt and zero-rated supplies

GST and Xero / MYOB

GST on imports and exports

Common GST mistakes

GST and invoicing requirements

Disclaimer