Everything You Need to Know About GST in NZ

Goods and Services Tax, commonly known as GST, is an important part of running many businesses in New Zealand.

Whether you are a sole trader, contractor, small business owner or established company, understanding GST registration, GST returns, GST filing and record keeping can help you meet your tax obligations and avoid unnecessary compliance problems.

For businesses that are GST registered, GST needs to be considered throughout the year rather than only when a return is due.

This guide explains how GST works in New Zealand, when you need to register, how often you may need to file, what a GST return involves and when professional GST services in New Zealand can help.

What Is GST in New Zealand?

GST stands for Goods and Services Tax.

It is a consumption tax that applies to most goods and services supplied in New Zealand. The standard GST rate is 15%.

GST is generally collected by GST-registered businesses from their customers and then accounted for to Inland Revenue.

For example, if a taxable product or service costs:

$1,000 + GST

The GST component at 15% is:

$150

The customer pays:

$1,150

The business then accounts for the relevant GST through its GST return.

However, GST treatment can vary depending on the transaction, so businesses should not assume every sale or expense is treated identically.

Learn more about GST from IRD .

Who Needs to Register for GST?

One of the most common GST questions from New Zealand business owners is:

“Do I need to register for GST?”

You generally need to register if:

• You carry out a taxable activity and your taxable turnover was at least $60,000 in the last 12 months.
• You expect your taxable turnover to be at least $60,000 in the next 12 months.
• You carry out a taxable activity and add GST to the prices of the goods or services you sell.

You do not automatically have to register for GST simply because you start a business.

Businesses below the compulsory threshold may also be able to register voluntarily, depending on their circumstances.

Why GST Registration Matters

Registering for GST creates additional responsibilities.

Once registered, you generally need to:

• Charge GST where applicable.
• File GST returns.
• Pay GST owing.
• Maintain GST records.
• Correct errors when necessary.
• Account for GST according to your chosen accounting basis.

View IRD’s GST registration requirements .

What Is Taxable Turnover for GST?

Taxable turnover is an important concept when determining whether GST registration is required.

Your turnover is not simply the amount sitting in your bank account.

It relates to the value of your taxable activity and can include relevant sales and supplies made in the course of your business.

Because the GST registration threshold is based on taxable turnover, businesses approaching the $60,000 threshold should monitor their revenue regularly rather than waiting until the end of the financial year.

If you are unsure whether your turnover requires GST registration, getting professional GST services in New Zealand can help you assess your position.

What Happens After GST Registration?

Once your business is registered for GST, GST becomes an ongoing part of your accounting process.

You generally need to:

Charge GST

Charge GST on taxable supplies where required.

Track GST

Record GST collected from customers and GST paid on eligible business purchases.

File GST Returns

Submit your GST return for each taxable period.

Pay GST

Pay any GST owing by the relevant due date.

Maintain Records

Keep appropriate supporting records for your GST transactions.

Read IRD’s guidance for GST-registered businesses .

How Often Do You Need to File GST?

Your GST filing frequency determines how often you need to prepare and submit GST returns.

Current IRD guidance provides three main filing frequencies for most businesses:

Check IRD’s current GST filing frequency requirements .

Monthly GST Filing

Monthly filing may suit businesses that have frequent GST refunds or significant transaction activity.

Businesses with sales above $24 million in a 12-month period generally must file monthly.

Two-Monthly GST Filing

Two-monthly filing is available to businesses with sales under the relevant $24 million threshold and can provide a balance between frequent compliance and administrative workload.

Six-Monthly GST Filing

Businesses with sales under $500,000 in a 12-month period may be eligible for six-monthly filing.

While this means fewer returns, leaving six months of transactions to reconcile can create a larger administrative task.

Which GST Filing Frequency Is Best?

There isn’t one GST filing frequency that is right for every business.

You should consider:

• Business turnover.
• Number of transactions.
• Cash flow.
• GST refunds.
• Administrative capacity.
• Accounting systems.
• Business growth.
• How frequently you want to review financial performance.

For some businesses, more frequent GST filing can make it easier to monitor cash flow and tax obligations.

For others, less frequent filing may reduce administration.

Review IRD’s guidance on GST accounting and filing frequency .

What Are GST Returns?

A GST return reports the GST activity of your business for a particular taxable period.

Before filing a GST return, you generally need information about:

• Total sales and income.
• Total purchases and expenses.
• GST collected.
• GST paid.
• Relevant adjustments.
• Other information required for the return.

IRD’s filing guidance explains that businesses need their total sales and income, total purchases and expenses, and relevant adjustments before completing a GST return.

Read IRD’s GST return filing guidance .

The return determines whether:

GST collected > GST paid

You generally have GST to pay.

Or:

GST paid > GST collected

You may be entitled to a GST refund.

When Are GST Returns Due?

The standard GST return and payment deadline is generally:

28th of the month following the end of the taxable period.

There are two important exceptions:

• A taxable period ending 31 March → generally due 7 May.
• A taxable period ending 30 November → generally due 15 January.

The GST payment is generally due on the same day as the GST return.

Check current GST filing deadlines with IRD .

Example

If your GST taxable period ends on 31 July, the GST return and payment are generally due on:

28 August

If your taxable period ends on 31 May, the return is generally due:

28 June

Always check the specific deadline applicable to your business.

Do You Have to File a GST Return If There Was No GST Activity?

Yes.

IRD states that you must file a GST return for every taxable period, even if it is a nil return.

This means you shouldn’t assume that no sales or purchases means there is no filing requirement.

If your business has repeatedly been filing nil returns, it may also be worth reviewing whether GST registration is still appropriate for your circumstances.

Read IRD’s guidance on filing GST returns .

What Is a GST Accounting Basis?

When you register for GST, you need to choose an accounting basis.

The main options are:

Payments Basis

Under the payments basis, you generally account for GST based on amounts you have received and paid, subject to the relevant rules.

Businesses with total sales of $2 million or less in the relevant periods may be eligible for this method.

Invoice Basis

Under the invoice basis, GST is generally accounted for when invoices are issued or received rather than waiting for payment.

This method can result in GST being accounted for before a customer has actually paid an invoice.

Hybrid Basis

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

IRD notes that the hybrid method is not commonly used by small businesses because of potential cash-flow consequences.

Choosing the appropriate accounting basis can have an impact on cash flow and GST reporting, so businesses should understand the implications before selecting one.

Read IRD’s GST accounting basis guidance .

GST Records: What Should You Keep?

Accurate records are a critical part of GST compliance.

Your records may include:

• Sales invoices.
• Purchase invoices.
• Receipts.
• Bank statements.
• Accounting records.
• GST calculations.
• Credit notes.
• Debit notes.
• Taxable supply information.
• Adjustment records.

A good accounting system should make it possible to trace the GST figure in your return back to the underlying transactions.

This is particularly important if your business is reviewed by Inland Revenue.

Read IRD’s record-keeping guidance .

Common GST Compliance Mistakes

GST errors can happen even when a business owner is trying to stay compliant.

1. Missing the GST Registration Threshold

Businesses approaching $60,000 in taxable turnover should monitor their position carefully.

2. Filing GST Returns Late

GST returns need to be filed by the applicable deadline, including nil returns.

3. Paying GST Late

The payment deadline generally matches the GST return deadline, and late payment can result in penalties and interest.

Read IRD’s GST payment guidance .

4. Incorrect GST Coding

Transactions can be incorrectly coded as GST-inclusive, GST-exclusive or exempt.

5. Claiming GST Incorrectly

Not every expense necessarily has the same GST treatment.

6. Poor Record Keeping

Missing invoices and receipts can make it difficult to support your GST calculations.

7. Ignoring Unusual Transactions

Large asset purchases, private-use assets, adjustments and unusual transactions may require additional consideration.

How Can GST Services in New Zealand Help Your Business?

Professional GST services in New Zealand can help businesses manage the administrative and compliance aspects of GST.

Depending on your needs, this can include:

• GST registration support.
• GST accounting.
• GST return preparation.
• GST filing.
• GST reconciliation.
• GST payment planning.
• GST error correction.
• Record-keeping processes.
• Tax compliance reviews.
• Ongoing accounting support.

For a business owner, the value is not simply having someone submit a GST return.

A good GST process should help you understand how the GST figure was calculated and what it means for your business cash flow.

When Should You Get Professional GST Support?

You may want professional GST support if:

• Your business is approaching the $60,000 registration threshold.
• You are unsure whether you need to register.
• Your GST returns are becoming difficult to prepare.
• Your transaction volume is increasing.
• You have complex business expenses.
• You have received an IRD query.
• You have made a GST error.
• You have overdue GST returns.
• You are unsure which accounting basis to use.
• Your business is experiencing rapid growth.
• You don’t have enough time to manage GST yourself.

Professional support can be particularly useful when GST becomes difficult to manage alongside day-to-day business operations.

Choosing GST Services in New Zealand

Choosing the right GST services in New Zealand can make a significant difference to how efficiently your business manages its tax obligations. GST is an ongoing responsibility, so businesses should consider whether they need one-off GST advice or ongoing support with registration, GST returns, reconciliation and filing.

Professional GST services in New Zealand can be particularly useful when your business is growing, your transaction volume is increasing or your GST obligations are becoming more complex.

When comparing GST services in New Zealand, consider whether the provider can assist with GST registration, GST accounting, GST filing, record keeping and broader tax compliance.

What Should GST Services Include?

Depending on your business requirements, GST services in New Zealand may include:

• GST registration and deregistration advice
• GST return preparation
• GST filing and payment support
• GST reconciliation
• GST error identification and correction
• GST accounting advice
• Record-keeping support
• Ongoing GST compliance reviews

The right GST services in New Zealand should also help you understand your GST position rather than simply submitting a return on your behalf.

Why Businesses Use GST Services in New Zealand

Managing GST internally can become difficult as a business grows. More customers, suppliers, invoices and transactions can increase the amount of work involved in preparing accurate GST returns.

Using professional GST services in New Zealand can help business owners spend less time on tax administration and more time running their businesses.

Professional GST services in New Zealand can also provide another level of review before a GST return is filed. This can help identify unusual transactions, missing records or potential GST errors before submission.

GST Services for Small Businesses

Small businesses may not need a full-time accounting team, but they still need to manage their GST obligations correctly. Outsourcing GST services in New Zealand can provide access to accounting expertise without requiring an in-house tax specialist.

For sole traders, contractors and growing businesses, GST services in New Zealand can include practical assistance with registration, GST returns, filing deadlines and ongoing compliance.

GST Services for Growing Businesses

As turnover increases, GST administration can become more complex. A growing business may have more transactions, employees, suppliers and business assets to account for.

At this stage, professional GST services in New Zealand can help establish consistent accounting and compliance processes that can grow alongside the business.

GST Compliance for DFK Orb360 Clients

DFK Orb360 O’Halloran supports New Zealand businesses with accounting, tax and business advisory requirements.

Our GST-related support can help businesses with:

• GST registration.
• GST return preparation.
• GST filing.
• GST reconciliation.
• Tax compliance.
• Accounting and reporting.
• Cloud accounting.
• Business advisory.

The objective is to help business owners maintain accurate financial records and stay organised with their ongoing tax obligations.

For businesses that need broader support, our accounting and reporting services can complement GST compliance and financial management.

GST and Cash Flow: Why Planning Matters

GST collected from customers is not necessarily business income that can be freely spent.

When a customer pays an invoice containing GST, part of that payment represents GST that may need to be accounted for to Inland Revenue.

For example, if you collect $11,500 including GST at the 15% rate, the GST component is $1,500.

Planning for GST payments can therefore help prevent cash-flow pressure when your return becomes due.

A regular accounting process can help you estimate upcoming GST obligations and keep appropriate funds available.

GST for New Businesses

If you’re starting a business, GST is something you should consider early.

Before registering, consider:

• Expected turnover.
• Type of business activity.
• Customer base.
• Pricing.
• Business expenses.
• Cash flow.
• GST filing frequency.
• Accounting basis.

You don’t necessarily need to register simply because you have started a business. The compulsory registration rules are based on taxable activity and turnover thresholds, as well as whether you add GST to your prices.

Check IRD’s GST registration guidance .

Getting advice before registering can help you understand what GST registration will mean for your business.

GST for Contractors and Self-Employed People

Contractors and self-employed people should also consider GST when monitoring their business income.

If your taxable turnover approaches or exceeds the GST registration threshold, you may need to register.

This is particularly important for contractors whose income can fluctuate significantly throughout the year.

Rather than waiting until you unexpectedly cross the threshold, monitor your turnover regularly.

GST Filing Checklist for New Zealand Businesses

Before submitting your GST return, check:

A simple checklist can reduce the risk of overlooking something important.

What Happens If You File or Pay GST Late?

Late GST filing or payment can result in penalties and interest.

If you realise that your GST return is overdue, don’t simply ignore it.

Review:

1. Which return is overdue?
2. What amount is outstanding?
3. Has the return been filed?
4. Is payment required?
5. Are penalties or interest applicable?
6. Do you need professional assistance?

IRD states that GST returns cannot be extended and should be filed on time.

Read IRD’s GST filing guidance .

Addressing an overdue obligation promptly is generally better than allowing it to remain unresolved.