Invoice Requirements in New Zealand: Legal Rules for 2026

New Zealand GST is administered by Inland Revenue (IRD). Tax invoices enable registered buyers to claim input tax and support GST returns. Informal receipts often fail enterprise AP and IRD reviews. Cross-border remote services and marketplace rules add nuance for 2026 operators. This article is general guidance, not legal advice—confirm zero-rated exports, financial services, land transactions, and reverse charge-style rules with IRD or your adviser. Australian GST teams often compare NZ templates side by side—keep terminology distinct so cross-Tasman AP does not mis-post credits.

Required fields

Tax invoices generally show seller name and GST number, buyer name (and GST number for taxable supplies above NZD 1,000 including GST), date of issue, description of goods or services, taxable amount, GST charged, and total payable. Buyer address expectations depend on value—check current IRD guidance for simplified tax invoices and low-value rules. Credit notes must reference the original tax invoice and adjust GST transparently.

Tax rules (VAT/GST/sales tax rates)

The standard GST rate is 15%. Zero-rated exports and certain supplies carry 0% with evidence requirements. Exempt supplies (parts of financial services, residential rent, etc.) sit outside the credit chain—do not label them like standard taxable lines. Mixed supplies need clear allocation for both IRD and customer reconciliation. GST groups and agency arrangements must show which member issues the tax invoice so input credits attach to the correct registration—ambiguous letterheads frustrate refunds during group restructures. Imported services and certain remote digital supplies can shift liability under specific rules; do not assume domestic supply footers when reverse charge or marketplace mechanics apply.

Language requirements

English is the default for B2B and IRD correspondence. Bilingual documents are acceptable if GST figures remain unambiguous.

Digital invoicing rules

IRD expects readable electronic records supporting GST returns. Email PDFs are common; avoid overwriting files after issuance. Accounting exports should tie each tax invoice number to GST return boxes without ad hoc spreadsheets—breaks in that chain are common audit findings. Large buyers may require Peppol or portal UBL—align contractually required fields with your ERP output. IRD audits favour immutable PDF hashes or WORM storage when disputing issuance dates.

Penalties

IRD may charge use-of-money interest, shortfall penalties, and late filing penalties when GST returns diverge from invoice evidence. Customers may delay payment when GST numbers or tax invoice wording is defective. Credit notes without original invoice references are a frequent GST return reconciliation pain point—automate linking in your AR tool.

If you sell across the Tasman, run separate QA on NZ and Australian templates so GST labels, registration fields, and evidence wording never bleed across footers. Quarterly spot-check five random invoices against IRD guidance PDFs—small wording drift is how audits start.

Document who may approve credit notes and how those numbers feed the next GST return so AR and tax never maintain parallel unofficial sequences. For subscription businesses, align invoice dates to service periods described in contracts—IRD reviewers compare narratives to performance evidence. If you issue invoices in foreign currency, file the exchange-rate methodology your policy promises so IRD can trace GST calculations without ad hoc spreadsheets.

Template link

Use our New Zealand invoice template for GST-ready totals. Read the invoice tax compliance guide and tax rate lookup tool. Official references include Inland Revenue and GST (goods and services tax). Join InvoiceQuickly early access to keep Australasian invoicing consistent.