New Zealand GST compliance

What is a GST return in New Zealand?

A GST return is the regular return GST registered businesses file with Inland Revenue so they can report GST on taxable supplies for a taxable period, pay net GST, or receive a refund when credits exceed GST charged (Inland Revenue, Filing and paying GST, and refunds, last updated 13 May 2024).

Inland Revenue explains that when you register for GST you need to choose an accounting basis and a filing frequency, that you need to file regular GST returns, and that how often you file depends on your sales (Inland Revenue, Which GST accounting basis and filing frequency should I use?, last updated 31 Mar 2025).

Prep GST returns with clean invoices.
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Your taxable supply information, bank feeds, and point of sale exports are the evidence behind the boxes you complete. This page summarises public IRD guidance for New Zealand businesses. It is not tax or legal advice. Confirm your dates and obligations in myIR or with a New Zealand tax adviser.

Quick reference

GST returns, accounting basis, and filing frequency

Use these definitions with your bookkeeper or accountant so invoices, ledgers, and myIR line up before you lodge.

What is a GST return in plain English?

A GST return is how you tell Inland Revenue your GST position for a taxable period after you are registered for GST. The filing and paying hub states that once you are registered you will need to file regular GST returns and pay GST on your taxable activities (Inland Revenue, Filing and paying GST, and refunds, last updated 13 May 2024).

  • Covers a defined taxable period set by your filing frequency
  • Ties to the accounting basis you elected at registration
  • Uses evidence such as taxable supply information and ledgers
  • Must align with changes IRD approves for alternative period end dates

Example

You file online in myIR for a two-monthly period, declare total sales and purchases, show GST collected and GST on expenses you can claim, then pay the net amount or receive a refund when your credits are larger.

What is payments basis versus invoice basis?

Your accounting basis decides when sales and purchases enter the return. Inland Revenue explains that on the payments basis you include amounts you have been paid by customers and amounts you have paid to suppliers if you hold taxable supply information when your total sales are $2 million or less in the last twelve months and likely to stay there, while on the invoice basis you include amounts you have notified customers to pay by invoice even if you have not been paid yet, and amounts you have paid to or been invoiced by suppliers if you hold taxable supply information, even if you have not paid in full (Inland Revenue, Which GST accounting basis and filing frequency should I use?, last updated 31 Mar 2025).

  • Hybrid basis combines invoice rules for sales and payments rules for expenses
  • Invoice basis is available to anyone but needs tighter working capital discipline
  • Payments basis eligibility depends on IRD sales thresholds
  • Matches how you must treat supplier documents under taxable supply information rules

Example

On invoice basis you bring large December invoices into the period you issued them, even if the customer pays in January, which changes cash planning compared with payments basis.

How often do you file a GST return?

Inland Revenue states you need to file regular GST returns and that how often you file depends on your sales (Inland Revenue, Which GST accounting basis and filing frequency should I use?, last updated 31 Mar 2025). It sets out that you must file monthly if your sales are over $24 million in any twelve-month period for the entity or GST group, anyone with sales under $24 million may file two-monthly, and anyone with sales under $500,000 may file six-monthly, noting six-monthly filing means only two returns a year but a large amount of trading to account for at once (Inland Revenue, Which GST accounting basis and filing frequency should I use?, last updated 31 Mar 2025).

  • GST groups test turnover at group level for the $24 million and $500,000 gates
  • Non-resident suppliers of certain remote or listed supplies may need quarterly filing instead (Inland Revenue, Changing your GST filing frequency, last updated 31 Mar 2025)
  • You can change frequency in myIR when eligibility shifts
  • You should align filing frequency with your income tax balance date, commonly 31 March (Inland Revenue, Changing your GST filing frequency, last updated 31 Mar 2025)

Example

A growing exporter crosses $24 million rolling sales and must move to monthly filing for the whole GST group, which changes how quickly finance closes each cycle.

Side-by-side

GST return (NZ) vs Australian BAS vs income tax return

Your GST return covers GST for each taxable period with Inland Revenue. An Australian BAS bundles GST and other labels for the ATO. Your income tax return is the separate annual story for income tax.

Primary role

NZ GST returnReport GST collected and claimable GST on expenses for the taxable period, then pay net GST or receive a refund
Australian BASReport GST, PAYG withholding, PAYG instalments, and other labels the ATO attaches to your registration
Income tax returnCalculate income tax for the year, claim deductions, and square up provisional tax where relevant

Agency

NZ GST returnInland Revenue (New Zealand)
Australian BASAustralian Taxation Office
Income tax returnInland Revenue for most domestic entities

Typical rhythm

NZ GST returnMonthly, two-monthly, or six-monthly, depending on eligibility rules
Australian BASMonthly, quarterly, or annual GST reporting patterns set by the ATO
Income tax returnAnnual for many taxpayers, with extensions or agents where allowed

Link to invoices

NZ GST returnStrong: taxable supply information and ledgers should explain each box
Australian BASStrong: Australian tax invoices and payroll drive BAS labels
Income tax returnUses annual profit and loss, not every GST period detail

Practical guidance

When a GST return matters to your business

You work with GST returns whenever you are GST registered and IRD expects a lodgment for the period. Your filing frequency and accounting basis decide how often and how you measure sales and purchases.

GST registered operators

Inland Revenue reminds readers that once registered for GST you need to file regular returns and pay GST on taxable activities (Inland Revenue, Filing and paying GST, and refunds, last updated 13 May 2024).

  • You pass the GST registration turnover threshold or register voluntarily
  • You issue tax invoices or other taxable supply information that supports output tax
  • You claim GST on business purchases that meet documentation rules
  • You adjust prior periods when you discover invoice or coding errors

Diarise the due dates IRD shows in myIR so public holidays do not surprise you.

Choosing or changing filing frequency

Inland Revenue explains you can change filing frequency in myIR when eligibility changes, and you must align frequency with your income tax balance date (Inland Revenue, Changing your GST filing frequency, last updated 31 Mar 2025).

  • Sales cross $24 million and monthly filing becomes mandatory
  • Sales fall and six-monthly filing becomes available again
  • Six-monthly filing feels too heavy so you move to two-monthly
  • A GST group reorganises and turnover tests must be rerun

Model cash flow before picking six-monthly filing because one return covers half a year of activity.

Evidence you can defend

Taxable supply information rules still govern what you must hold when you claim GST, even though the return is the snapshot you lodge (Inland Revenue, Taxable supply information for GST, last updated 27 Nov 2024).

  • Buyers request extra identifiers for higher value supplies
  • You rely on eInvoicing or Peppol metadata instead of only PDFs
  • You reconcile foreign currency sales back to New Zealand dollars consistently
  • You store supply correction information when totals move after the first bill

Run a pre-lodge checklist that ties each return box to a folder or ledger report.

What sets them apart

GST returns compared with nearby ideas

Think of the GST return as the IRD period summary. Tax invoices and bank feeds are the detail. Payment terms such as net thirty change cash timing, not your obligation to lodge on time.

GST return versus each tax invoice

Invoices and credit related documents prove line items. The return aggregates those figures for the taxable period, so rounding and coding drift shows up quickly if you skip reconciliation.

GST return versus Australian BAS culture

Australia’s BAS page bundles GST with PAYG withholding and other labels. New Zealand separates GST returns from PAYE obligations, so importing Australian wording into Kiwi templates can confuse staff.

GST return versus taxable supply information labels

Documents can still say tax invoice when they meet the rules, but IRD now expects enough fields overall to support GST claims, not only a magic title (Inland Revenue, Taxable supply information for GST, last updated 27 Nov 2024).

GST return timing versus customer payment terms

Net thirty sets when your buyer should pay you. Your GST return is still due on the IRD date, so you plan cash to cover any net GST even if big invoices are still outstanding.

Workflow

How to move from records to a lodged GST return

Close the period in your books, reconcile taxable supply information, complete the return in myIR or through your agent, pay on time or manage a refund, then file evidence for the next review.

  1. 1

    Finish bank and sales reconciliation

    Match every business transaction for the taxable period, including part-month subscriptions and part-period contractor bills. Fix coding errors before you lock the file.

    Tip: Flag invoices that cross period boundaries when you use invoice basis.

  2. 2

    Reconcile GST outputs and credits

    Compare output tax on sales with issued taxable supply information. Match input tax with supplier documents you are allowed to claim under IRD rules.

    Tip: Split mixed supplies before you roll totals into myIR.

  3. 3

    Confirm filing frequency and period dates

    Check myIR for the exact taxable period end date, especially if IRD approved alternative cycle dates for four-weekly accounting (Inland Revenue, Which GST accounting basis and filing frequency should I use?, last updated 31 Mar 2025).

    Tip: Update calendars when you change frequency mid-year.

  4. 4

    Complete the GST return

    Transfer totals from your ledger or tax agent workbook into the IRD return for the period, double counting adjustments or corrections from supply correction information.

    Tip: Keep a working paper that maps each myIR field to a report name.

  5. 5

    Pay net GST or bank a refund

    If you owe GST, pay using IRD approved channels before the due date. If IRD owes you, monitor myIR for processing and bank the refund through your normal controls.

    Tip: Large refunds sometimes trigger questions, so keep source documents tidy.

  6. 6

    Archive and plan the next period

    Store the lodged return, payment confirmations, and reconciliation files. Set the next review date before the following due date, especially if customers default to net thirty or longer.

    Tip: Note lessons learned in a short finance retro while memory is fresh.

Pitfalls

Mistakes that throw out a GST return

Typical issues are mixing accounting bases, missing filing frequency changes, and lodging without reconciling invoices first.

Using cash in the bank as GST on invoice basis

Problem

You recognise income only when paid but you elected invoice basis.

Fix

Rebuild the period using invoice dates before you lodge, or discuss changing basis with IRD if eligible.

Ignoring the $24 million monthly filing rule

Problem

Sales spike for one twelve-month window but you stay on two-monthly filing.

Fix

Monitor rolling turnover and update frequency when tests change (Inland Revenue, Changing your GST filing frequency, last updated 31 Mar 2025).

Claiming GST without usable records

Problem

Missing taxable supply information for large purchases.

Fix

Request compliant documents from suppliers before you claim, or adjust the return.

Forgetting GST groups use combined turnover

Problem

Each subsidiary looks small alone but the group crosses $24 million.

Fix

Consolidate sales tests the way IRD describes for GST groups (Inland Revenue, Changing your GST filing frequency, last updated 31 Mar 2025).

Copying Australian BAS labels into Kiwi workflows

Problem

Teams import PAYG wording that does not apply to GST returns here.

Fix

Train staff with New Zealand glossary pages and IRD material instead.

Checklists

Checklists before you lodge

Run these lists so your return matches myIR, your bank, and your invoice archive.

Source records

  • Taxable supply information for the period is complete and stored
  • Supply correction information is filed for any amended amounts
  • Foreign currency amounts use a consistent exchange method
  • Private use adjustments are documented where required

Return mechanics

  • Accounting basis in myIR still matches how you prepared figures
  • Filing frequency matches current turnover eligibility
  • Each box ties to a ledger report or agent worksheet
  • GST group totals include every member required

Payment and follow up

  • Due date is in the calendar with banking cut-offs considered
  • Payment references match IRD instructions
  • Refund expectations are communicated to cash flow forecasts
  • Next period close meeting is scheduled before the rush returns

Sources

What Inland Revenue says about GST returns

These points quote or closely paraphrase IRD web guidance from 2024 and 2025. Always read the live pages before you rely on them.

  • Inland Revenue states that once you are registered for GST you will need to file regular GST returns and pay GST on your taxable activities.

    Inland Revenue, Filing and paying GST, and refunds (2024). View source

  • Inland Revenue explains that you need to file regular GST returns, that how often you file depends on your sales, that you must file monthly if sales exceed $24 million in any twelve-month period, that businesses under that level may file two-monthly, and that businesses under $500,000 may file six-monthly, while noting six-monthly filing means large volumes of trading to account for at once.

    Inland Revenue, Which GST accounting basis and filing frequency should I use? (2025). View source

  • Inland Revenue explains you can change filing frequency in myIR when you remain eligible, giving the example that six-monthly filing can feel like a big job so you might switch to two-monthly filing.

    Inland Revenue, Changing your GST filing frequency (2025). View source

Related document types

GST groups, non-residents, and four-weekly cycles

Complex structures and offshore sellers need extra checks before they assume default two-monthly filing.

GST groups

Turnover tests for monthly, two-monthly, and six-monthly filing apply to the GST group as a whole, so monitor consolidated sales when subsidiaries trade heavily (Inland Revenue, Changing your GST filing frequency, last updated 31 Mar 2025).

Non-resident quarterly filing

Inland Revenue notes non-resident businesses that only supply remote services, low value imported goods, or listed services must file quarterly (Inland Revenue, Changing your GST filing frequency, last updated 31 Mar 2025).

Four-weekly accounting approvals

IRD may approve alternative taxable period end dates when strong commercial reasons exist, including aligning monthly or two-monthly filing with four-weekly payroll cycles (Inland Revenue, Which GST accounting basis and filing frequency should I use?, last updated 31 Mar 2025).

Frequently asked questions

Practical questions New Zealand operators ask about GST returns.

What is a GST return in New Zealand?

It is the regular return you file with Inland Revenue for each taxable period to report GST on your taxable supplies, pay net GST, or receive a refund when credits exceed GST charged.

How often do I file a GST return?

It depends on your sales. IRD sets monthly filing when sales exceed $24 million in any twelve-month period, allows two-monthly filing when sales are under that level, and six-monthly filing when sales are under $500,000, subject to GST group rules and special cases such as non-resident quarterly filing (Inland Revenue, Which GST accounting basis and filing frequency should I use?, and Changing your GST filing frequency, last updated 31 Mar 2025).

What is the difference between payments basis and invoice basis?

Payments basis generally tracks money received and paid within thresholds IRD lists, while invoice basis includes amounts you have invoiced even if customers have not paid yet, and supplier invoices you hold even if you have not paid in full (Inland Revenue, Which GST accounting basis and filing frequency should I use?, last updated 31 Mar 2025).

Is a New Zealand GST return the same as an Australian BAS?

No. A BAS reports Australian GST plus other obligations such as PAYG withholding to the ATO, while a New Zealand GST return focuses on GST for Inland Revenue. Compare Invoice Mama’s BAS glossary entry when you train Tasman teams.

Do I still need taxable supply information if I file on time?

Yes. Filing the return does not replace the need to hold correct records that support the figures you declare (Inland Revenue, Taxable supply information for GST, last updated 27 Nov 2024).

Where do I file my GST return?

Most businesses lodge through myIR or a registered tax agent. Confirm the channel IRD lists for your entity.

What happens if I miss a due date?

Late filing and late payment can attract IRD penalties and interest. If you are behind, use IRD guidance on penalties and debt or speak with a tax agent early.

Does net thirty on my invoice change my GST due date?

No. Customer payment terms change when they should pay you, not the IRD due date for your GST return.

Can I change filing frequency after registration?

Yes. IRD explains you can change filing frequency in myIR when you remain eligible, for example moving from six-monthly to two-monthly filing if six-monthly cycles feel too heavy (Inland Revenue, Changing your GST filing frequency, last updated 31 Mar 2025).

Keep learning

Related glossary entries

Pair GST returns with identifier and record rules, then read Australian entries when you mirror workflows across the Tasman.

What is GST in New Zealand?

Fifteen percent GST basics before you drill into returns and filing cycles.

Read glossary entry

What is taxable supply information?

IRD record rules that sit underneath the figures in each GST return.

Read glossary entry

What is an NZBN?

Show the identifier buyers expect while you keep IRD numbers accurate.

Read glossary entry

What is a BAS?

See how Australian activity statements differ from IRD GST returns.

Read glossary entry

What is an ABN?

Contrast Australian business identifiers when you invoice Australian parents or subsidiaries.

Read glossary entry

Net thirty payment terms

Set customer due dates that still leave cash for GST payments.

Read glossary entry

IRD-ready invoices

Keep sales, GST, and payment evidence lined up before you file

Invoice Mama helps you issue clear tax invoices and track receivables so the figures you carry into your GST return match what buyers saw on paper or through eInvoicing.

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