New Zealand GST: the complete guide for 2026

New Zealand has one of the simplest GST systems in the world: a single rate, a clean rolling threshold, three filing frequencies, one deadline (with two well-known exceptions). The simplicity is real, but the day-to-day still throws plenty of edge cases at a bookkeeper: the new taxable-supply-information rules, the zero-rated versus exempt distinction, the two-NZ$1,000 cross-border regime, and the merchant-fee carve-out from financial services. This guide covers the rate, the registration threshold, the filing cycles, the invoice rules, the cross-border patterns, and the specific edge cases ExpenseFlow handles at capture so they never reach the return. Every figure, deadline, and regulation is referenced to an official Inland Revenue or New Zealand Government source; full URLs appear in the Sources section.

What GST is and how it works in New Zealand

GST is a broad-based tax charged at 15% on most goods and services sold or consumed in New Zealand, including imports ^[1] . Businesses collect GST from customers, pay GST to suppliers, and remit the net to Inland Revenue. The system is designed so the final consumer carries the tax.

There are three categories of sale plus an “out of scope” residual ^{[2] [3] [4]} :

Zero-rated and exempt both show NZ$0 of GST to the customer, but from the supplier’s side they are opposites: a zero-rated supplier still recovers the GST it paid on its inputs; an exempt supplier cannot. A grocer making zero-rated exports recovers input tax on packaging and freight; a residential landlord making exempt rentals cannot recover GST on repairs, agent fees, or body-corporate fees. The most common miscoding we see at capture is around bank fees: most account-keeping fees, interest, loan fees, and insurance premiums are exempt, while merchant service fees and payment-processor charges are taxable.

The NZ$60,000 registration threshold

You must register for GST if you carry on a taxable activity and either your turnover was at least NZ$60,000 in the last 12 months, or you expect it to be at least NZ$60,000 in the next 12 months ^[5] . A taxable activity is one carried on continuously or regularly that involves supplying goods or services for consideration; hobbies, private recreation, and employment are excluded.

You must also register, regardless of turnover, if you have already started adding GST to your prices ^[5] . Until your registration is active, you cannot legally charge GST. The correct approach if you have crossed the threshold while waiting for confirmation is to raise prices to cover the GST during the gap and reissue taxable supply information once your effective date is set.

Voluntary registration is available below the threshold. It suits a business whose customers are themselves GST-registered and whose inputs carry GST worth claiming. If your customers are end consumers, voluntary registration raises your effective price by 15% and is rarely worth it.

A non-resident business supplying remote services or listed services to New Zealand consumers must register on the same NZ$60,000 threshold (last 12 months or expected next 12 months) ^[6] .

Filing frequency and the 28th-of-the-month deadline

Three filing frequencies are available. Your choice is constrained by turnover ^[7] :

The 28th of the month rule is the same across all three ^[8] . A taxable period ending 30 June is due 28 July. The two exceptions are mechanical:

• The taxable period ending 31 March is due 7 May (aligned with the income-tax cycle).
• The taxable period ending 30 November is due 15 January (accommodating the Christmas and New Year break).

Both apply to monthly, two-monthly, and six-monthly filers whose periods end on those dates. The IRD is explicit that no extension of time is available beyond these structural exceptions.

Most New Zealand practices put clients on two-monthly by default and lift the busier ones to monthly. Six-monthly is unusual: the workload doubles at filing time and cash positions swing between returns.

Taxable supply information: the three thresholds

In April 2023 New Zealand replaced the old “tax invoice” framework with taxable supply information ^[9] . The terminology changed but the underlying records did not: documents compliant with the old rules still comply under the new rules, and you can keep marking them “Tax Invoice”. The reforms are designed to enable eInvoicing through PEPPOL.

The required information depends on the value of the supply ^[10] :

Under NZ$200. Seller’s name or trade name, date of supply, a description, and the total payable. A till receipt is sufficient.

More than NZ$200 and up to NZ$1,000. The four fields above plus the seller’s GST registration number and a clear indication of the GST amount (either a separate GST line or a “total includes GST” statement).

Over NZ$1,000. Everything above, plus the buyer’s name and address.

Quantity is not a required field on New Zealand taxable supply information ^[10] , which differs from UK and Australia. Suppliers must provide taxable supply information within 28 days of a request for supplies over NZ$200 ^[10] . Documents marked “Tax Invoice” but showing no GST number are internally inconsistent and surface a review prompt at capture.

Edge cases ExpenseFlow handles at capture

Most New Zealand GST errors are small and repetitive: the wrong code, a missing GST number, a foreign rate that crept through unchecked, a financial-services line that got the standard rate by accident. They scale badly across hundreds of receipts a quarter, and the cost of catching them at the return is much higher than catching them when the document is first scanned.

Alongside these deterministic rules, every captured document passes through an AI review that reads an IRD-derived knowledge base. The review handles the judgment-heavy cases: a foreign supplier coded as if it were domestic (and the reverse); a fixed-asset purchase posted to an expense code; a stale invoice outside the claim window; a document addressed to a different legal entity than the practice’s client; zero-rated versus exempt classifications on borderline supplies; and place-of-supply calls on services consumed partly in and partly outside New Zealand. Each finding carries an explanation and, where applicable, a suggested replacement tax code drawn from the practice’s platform chart. A separate platform check at sync time flags revenue accounts on bills, income accounts on expenses, and bank or cash accounts on invoices so a misclick in the chart of accounts does not land an entry in the wrong ledger.

The combined effect is that the bill or expense arriving in Xero or QuickBooks Online is already coded, already rate-checked, and already screened against the New Zealand-specific edge cases.

Records, retention, and the audit trail

You must keep most GST records for at least 7 years ^[13] , longer than the five-year period in Australia. Records must be in English or Māori unless Inland Revenue has given written authority to keep them in another language. The IRD accepts digital images of paper records provided they are legible and the audit trail is intact. ExpenseFlow stores every captured receipt at original resolution alongside the extracted data, so the audit trail from source document to GST return line is preserved without paper. Customs entries, original IRD correspondence, and statements from financial institutions for material loans are still worth keeping in their original form.

Cross-border: imports, exports, and remote services

Three distinct patterns apply to cross-border GST. Imported goods valued at NZ$1,000 or less per item fall under the low-value imported goods rules, in effect since 1 December 2019 ^[12] . The overseas supplier or marketplace registers for New Zealand GST and charges 15% at the point of sale. A GST-registered New Zealand buyer should provide their GST number at checkout so the supplier knows not to charge GST under the low-value regime; otherwise the GST charged is not recoverable as input tax.

Imported goods valued over NZ$1,000 per item have GST and customs duty charged at the border by the New Zealand Customs Service ^[12] . The Customs entry is the document on which input tax on the import is claimed; the supplier invoice is recorded as the cost of goods only.

Imported services from a non-resident supplier either land with NZ GST already charged (if the supplier is registered under the remote-services rules) or trigger the imported-services reverse charge for a GST-registered New Zealand buyer. Under the reverse charge, the buyer reports both an output tax entry and a matching input tax entry on the same return; the net effect is typically zero, but the reporting is mandatory.

Exports are zero-rated ^[4] , which means GST applies at 0% and the supplier still recovers input tax on related expenses. For the New Zealand buyer, what matters is that the imported-goods and imported-services rules above govern incoming supplies.

GST and your accounting software

The GST return lives or dies on the integration between your receipt-capture tool and your accounting platform. The data that matters is the tax code, the GST amount, the net and gross amounts, the supplier GST registration number, and the invoice date.

Xero is the dominant accounting platform for New Zealand SMBs and practices; see the Xero integration page. The sync is two-way and continuous, with full preservation of tax rates, tracking categories, supplier contacts, attachments, and the bank-transaction matching layer. Xero files New Zealand GST returns directly to IRD via the gateway services. QuickBooks Online is also widely used, particularly among practices serving cross-Tasman clients; see the QuickBooks Online integration page. The sync semantics are equivalent. MYOB is on the integrations waitlist; see the MYOB roadmap page. Until the native integration ships, MYOB practices can forward receipts to ExpenseFlow’s inbound email address and the extraction pipeline runs as normal, with manual export at the end of each period.

ExpenseFlow does not file the return itself; the responsibility for filing rests with the practice and the platform that holds the IRD gateway credentials.

Common GST mistakes bookkeepers catch

Five mistakes account for most pre-filing corrections we see at capture.

Bank fees coded at 15% instead of exempt. Default templates apply the standard rate to anything from a bank vendor. The financial-services rule routes the line to the exempt code, while the merchant-fee carve-out keeps EFTPOS and payment-processor charges at 15%.

Missing GST number on invoices over NZ$200. The supplier forgot to include it; the input tax claim does not meet the taxable-supply-information requirement. The threshold check surfaces the gap before the bill is posted.

Foreign rates that crept through. A SaaS subscription priced at 10% (AU GST) or 20% (UK VAT) on a New Zealand workspace. The rate-validity check catches anything outside 0% and 15%; the cross-border rule set surfaces the place-of-supply question.

Zero-rated coded as exempt, or the reverse. A grocer coding export sales as exempt loses the right to recover input tax; a residential landlord coding exempt rentals as zero-rated wrongly claims it. Both surface in the AI review with the relevant IRD category named.

Buyer name missing on invoices over NZ$1,000. Common with retail-style receipts where the customer field is left blank by default. The over-NZ$1,000 check flags the missing field before the claim goes through.

Where to go next

This guide is the foundation. The practical, country-specific compliance work happens on the New Zealand landing page, which covers ExpenseFlow’s New Zealand product surface end to end. The Xero integration page and the QuickBooks Online integration page cover the sync semantics for the two platforms we support natively.

Pricing for New Zealand practices is at /pricing/bookkeepers and /pricing/business-owners, both billed in USD with GST-inclusive receipts available where required.

If you are evaluating expense-capture tools for a New Zealand practice, join the founding-customer waitlist with the platform you are on flagged. The waitlist signal is also how we prioritise the MYOB integration on the roadmap.