GST NZ: Rates, Registration, Returns & What Businesses Need to Know

How Does GST Work in New Zealand?

GST NZ, or Goods and Services Tax, is a 15% tax applied to most goods and services supplied in New Zealand.

A business generally must register for GST if its taxable activity turnover was at least $60,000 in the last 12 months, is expected to reach $60,000 in the next 12 months, or if it adds GST to its prices.

Once registered, a business generally charges GST on taxable sales, claims eligible GST on business purchases and expenses, files GST returns and pays Inland Revenue the difference between GST collected and GST claimed.

What Is GST NZ?

GST NZ stands for Goods and Services Tax. It is a consumption tax added to the price of most goods and services supplied in New Zealand.

The standard GST rate is 15%.

GST can also apply to certain imports and some transactions involving overseas suppliers.

Although businesses collect GST from customers, GST is ultimately a tax on consumption. A GST-registered business generally collects GST on taxable supplies and accounts for it to Inland Revenue.

How Does GST Work?

The basic process is:

Business sells goods or services → charges GST → collects GST → claims eligible GST on purchases → files GST return → pays the difference or receives a refund.

For example, if a business collects $15,000 of GST from customers and has $9,000 of eligible GST on business purchases:

$15,000 − $9,000 = $6,000 GST payable

The actual calculation can be more complicated where adjustments, exempt supplies, zero-rated supplies or mixed private and business use are involved.

What Is the GST Rate in New Zealand?

The standard GST NZ rate is 15%.

For a GST-exclusive price of $1,000:

$1,000 × 15% = $150 GST

Total price:

$1,150 including GST

If a price already includes GST, the GST component is calculated differently.

For example:

$1,150 × 3 ÷ 23 = $150 GST

This distinction is important when preparing invoices, calculating profit margins and completing GST returns.

Who Needs to Register for GST in NZ?

Not every New Zealand business needs to register immediately.

You generally must register for GST if:

• you carry out a taxable activity and your turnover was at least $60,000 in the last 12 months
• you expect your taxable activity turnover to reach at least $60,000 in the next 12 months
• you carry out a taxable activity and add GST to your prices

The $60,000 threshold relates to taxable activity turnover rather than profit.

Businesses should monitor turnover regularly rather than waiting until the end of the financial year.

Can You Register for GST Below $60,000?

Yes.

A business below the $60,000 threshold can choose to register voluntarily.

Voluntary registration may be appropriate where:

• the business has significant GST-bearing expenses
• turnover is expected to grow
• customers are mainly GST-registered businesses
• the business wants to claim eligible GST on setup costs

However, registration also creates ongoing responsibilities.

Once registered, you generally need to:

• charge GST where applicable
• file GST returns
• pay GST owing
• keep appropriate records
• correctly account for sales and purchases

Before voluntarily registering, consider whether the administrative and cash-flow implications make sense for your business.

How Do You Register for GST?

GST registration can generally be completed through Inland Revenue.

When registering, you may need to choose:

• your GST accounting basis
• your filing frequency
• details of your taxable activity
• your expected turnover

The right setup depends on your business size, cash flow and reporting needs.

What Happens After You Register for GST?

1. Charge GST

You generally need to charge GST on taxable supplies made as part of your taxable activity.

2. Keep GST Records

You need suitable records supporting your GST calculations.

3. File GST Returns

You must file a GST return for each taxable period, including a nil return where applicable.

4. Pay GST

If GST collected exceeds eligible GST claimed, you generally pay the difference to Inland Revenue.

5. Claim Eligible GST

You can generally claim GST on business purchases and expenses relating to your taxable activity, subject to the applicable rules.

What Is Input GST and Output GST?

Output GST

Output GST is GST charged on taxable sales to customers.

For example:

Service price: $2,000
GST: $300
Total: $2,300

The $300 is output GST.

Input GST

Input GST is GST included in eligible business purchases and expenses.

For example:

Equipment purchased for:

$1,150 including $150 GST

The $150 may be claimable as input GST if the purchase qualifies.

Basic GST Calculation

A simplified formula is:

GST payable = Output GST − Eligible Input GST

How Do You Calculate GST?

GST-Exclusive Price

If the price is $2,000 excluding GST:

$2,000 × 15% = $300 GST

Total:

$2,300 including GST

GST-Inclusive Price

If the price is $2,300 including GST:

$2,300 × 3 ÷ 23 = $300 GST

The GST-exclusive amount is:

$2,000

What Is a GST Return?

A GST return tells Inland Revenue how much GST your business has collected and how much eligible GST it can claim for the relevant taxable period.

You generally need information about:

• sales and income
• business purchases and expenses
• zero-rated supplies
• GST adjustments
• other relevant GST information

GST returns can generally be filed through myIR or compatible accounting software.

When Are GST Returns Due in NZ?

For most taxable periods, GST returns and payments are due on the 28th of the month following the end of the taxable period.

There are two important exceptions:

• a taxable period ending 31 March generally has a due date of 7 May
• a taxable period ending 30 November generally has a due date of 15 January

Your GST payment is generally due on the same date as the return.

Businesses should monitor their filing dates carefully because late filing or late payment can lead to penalties and interest.

How Often Do Businesses File GST Returns?

Monthly Filing

Monthly filing is required for larger businesses above the relevant sales threshold, while smaller businesses may also choose monthly filing.

Two-Monthly Filing

Two-monthly filing is available to many businesses below the monthly filing threshold.

Six-Monthly Filing

Smaller businesses may be eligible for six-monthly filing if they meet the relevant turnover conditions.

The most suitable frequency depends on:

• business size
• cash flow
• accounting systems
• administration
• how quickly the business wants GST refunds processed

Which GST Accounting Basis Should You Use?

A business also needs to choose an accounting basis.

Common options include:

• payments basis
• invoice basis
• hybrid basis

Payments Basis

GST is generally accounted for when money is actually received or paid.

Invoice Basis

GST is generally accounted for when invoices are issued or received, subject to the applicable rules.

Hybrid Basis

The hybrid method combines aspects of the payments and invoice methods.

The right method depends on your circumstances, turnover and cash-flow needs.

What GST Can a Business Claim?

A GST-registered business can generally claim GST on eligible purchases and expenses that relate to its taxable activity.

Common examples may include:

• business equipment
• office supplies
• professional services
• business software
• stock
• certain vehicle expenses
• business operating costs

However, not every expense automatically creates a GST claim.

The GST treatment can depend on:

• whether the expense relates to taxable activity
• whether the purchase is partly private
• whether the supply is exempt
• whether adjustment rules apply
• whether appropriate records are available

Can You Claim GST on Personal Expenses?

Generally, GST should not simply be claimed on private spending.

Where an asset or expense has both business and private use, GST adjustments may be required.

This can be particularly relevant for:

• vehicles
• property
• equipment
• phones
• computers
• other mixed-use assets

Businesses should maintain records showing how the business-use percentage has been determined.

What Are Zero-Rated GST Supplies?

A zero-rated supply is taxable for GST purposes but GST is charged at 0%.

This is different from an exempt supply.

Zero-rated transactions remain within the GST system and may have specific rules around input GST.

Examples can include certain:

• exports
• land transactions
• international transactions
• other qualifying supplies

What Are GST-Exempt Supplies?

Some supplies are exempt from GST.

This means GST is not charged on the supply, and different rules can apply to related GST claims.

Examples can include certain:

• financial services
• residential rental accommodation
• other exempt transactions

Businesses should not confuse zero-rated supplies with exempt supplies because the GST treatment is different.

GST and Invoices: What Businesses Need to Know

GST-registered businesses need to maintain appropriate taxable supply information.

Good invoice and accounting records should make it clear:

• who supplied the goods or services
• what was supplied
• the amount paid
• the GST treatment
• the relevant transaction date

Accurate documentation makes GST return preparation easier and can help support claims if Inland Revenue reviews your records.

What Happens If You File Your GST Return Late?

Late GST filing or payment can create additional costs.

Possible consequences can include:

• late-filing penalties
• late-payment penalties
• interest
• additional compliance attention

Businesses generally still need to file GST returns for nil taxable periods.

If you cannot pay the amount due, address the issue early rather than simply ignoring it.

Common GST Mistakes NZ Businesses Make

1. Claiming Private Expenses

Treating personal spending as a business GST claim can create compliance problems.

2. Missing Sales

Relevant taxable sales need to be accurately reported.

3. Applying 15% GST to Every Transaction

Some supplies are zero-rated or exempt, so the standard rate does not apply universally.

4. Claiming GST Without Proper Records

Businesses should keep sufficient information to support GST claims.

5. Missing GST Adjustments

Mixed business/private-use assets can require adjustments.

6. Filing Late

Missing due dates can result in penalties and interest.

7. Forgetting Nil Returns

A GST return may still need to be filed even where there is no GST to pay.

GST NZ for Small Businesses

GST NZ can significantly affect small-business cash flow and administration.

Small businesses should monitor their taxable turnover regularly so they know when the $60,000 threshold may be approaching.

A useful monthly GST process is to review:

• total sales
• GST collected
• GST paid on eligible purchases
• upcoming GST liability
• outstanding invoices
• business expenses
• required GST adjustments

This can help prevent last-minute surprises when a return becomes due.

GST and Cash Flow: Why Businesses Should Plan Ahead

One of the biggest practical GST issues is cash flow.

GST collected from customers is not necessarily business profit.

For example, if a customer pays:

$11,500 including GST

The GST component is:

$1,500

That $1,500 should not simply be treated as money available for general operating expenses.

Setting aside GST funds can help reduce the risk of cash-flow pressure when payment becomes due.

What Happens If Your Business Stops Trading?

If a business stops carrying on its taxable activity, it may need to cancel its GST registration.

A final GST return may also be required.

Businesses should consider GST implications when:

• selling a business
• closing a business
• transferring assets
• stopping taxable activity
• changing business structure

Final adjustments may be needed for assets retained for private use or transferred elsewhere.

People Also Ask About GST NZ

What is GST NZ?

GST NZ is a 15% goods and services tax applied to most taxable goods and services supplied in New Zealand.

What is the GST rate in New Zealand?

The standard GST rate is 15%.

When do I need to register for GST?

You generally need to register if your taxable activity turnover was at least $60,000 in the last 12 months, is expected to reach $60,000 in the next 12 months, or if you add GST to your prices.

Can I register for GST voluntarily?

Yes. A business below the $60,000 threshold may choose to register voluntarily if it meets the relevant requirements.

How do I calculate GST?

For a GST-exclusive amount, multiply the price by 15%. For a GST-inclusive amount, the GST component can generally be calculated using 3/23 of the total amount.

How often do I file GST returns?

Depending on eligibility and turnover, businesses may file monthly, two-monthly or six-monthly.

When is a GST return due?

GST returns and payments are generally due on the 28th of the month following the taxable period, with specific exceptions for periods ending 31 March and 30 November.

Can I claim GST on business expenses?

Eligible GST on purchases and expenses relating to taxable business activity can generally be claimed, subject to the applicable rules.

Can I claim GST on personal expenses?

Generally, no. Mixed-use expenses may require an adjustment to reflect the business-use portion.

What is the difference between zero-rated and GST-exempt?

Zero-rated supplies are taxable supplies charged at 0% GST, while exempt supplies are treated differently and sit outside the normal GST charging mechanism.

Do I need to file a GST return if I have no GST to pay?

Yes. GST-registered businesses generally need to file a return for every taxable period, including nil returns.

GST NZ Checklist for Businesses

• Record all taxable sales
• Record eligible business purchases
• Check GST rates
• Review mixed private and business-use transactions
• Complete required adjustments
• Reconcile accounting records
• Check the GST calculation
• File the return by the due date
• Set aside funds for the GST payment

GST NZ: Key Takeaways

GST NZ is more than simply adding 15% to your invoices.

The key points are:

• The standard GST rate is 15%
• Registration is generally compulsory once taxable activity turnover reaches or is expected to reach $60,000
• Registered businesses generally charge GST on taxable supplies
• Eligible GST on business purchases may generally be claimed
• GST returns must be filed for each taxable period
• Filing frequency can vary depending on eligibility
• GST payments are generally due with the GST return
• Accurate records and cash-flow planning are essential

Get Professional GST Advice From DFK Orb360 O’Halloran

Whether you are registering for GST, preparing returns, reviewing your accounting systems or dealing with a complicated GST issue, professional advice can help you understand your obligations and make informed decisions.

Learn more about DFK Orb360 O’Halloran

Official GST Resources

• IRD – Goods and Services Tax
• IRD – Registering for GST
• IRD – Filing GST Returns
• IRD – GST Accounting Basis and Filing Frequency

GST Information Disclaimer

This article provides general information about GST NZ, GST registration, filing and business tax obligations. It is not personalised tax, accounting or financial advice.

GST rules, thresholds, filing requirements and Inland Revenue guidance can change. Always check current official information or seek professional advice based on your business circumstances.