Sole Trader Invoice Template - New Zealand

Not automatically. You must register for GST only if your annual turnover exceeds $60,000. Once registered, you must charge GST (currently 15%) on all taxable supplies. If your turnover is below $60,000, you can still register voluntarily—many sole traders do to recover input GST costs. However, if you're not registered, you cannot charge GST on your invoices, and you must clearly state this on each one. Check with the IRD if your turnover is close to the threshold.

Your NZ invoice must include your full name (or trading name if registered), business address, IRN (Inland Revenue Number) if GST-registered, invoice number, date issued, client's name and address, item descriptions, quantities, unit prices, GST (if applicable), total amount due, and due date. Payment terms and banking details should also be included to avoid payment delays. Missing key elements may cause the IRD to reject your invoices during an audit, potentially delaying tax refunds or GST claims.

Use consecutive, sequential numbering—starting at 001 and incrementing by one for each invoice. Never skip numbers or reuse numbers, as this raises red flags with the IRD during business audits. The format you choose (such as 20250616-001 or INV-001) matters less than consistency and sequentiality. If you issue credit notes or refunds, number them sequentially in a separate series to maintain a clear audit trail for your sole trader records.

The IRD requires you to retain all business records, including invoices, for at least seven years. This applies whether invoices are printed or digital. The seven-year period starts from the end of the tax year in which the invoice was issued. Keeping records for this duration protects you during audits and disputes, and helps you verify business income and expenses accurately. Consider storing digital copies in the cloud as a backup to physical records.

Digital invoices are fully acceptable and legally valid in New Zealand, provided they meet the same requirements as printed invoices. Email, PDF, or online portal delivery is fine. Your digital invoice must still include all mandatory information and be easily retrievable for IRD audits. Ensure the format is stable (PDF is ideal) to prevent accidental changes. Many sole traders find digital invoicing faster, more professional, and easier to track than printing, plus it supports record retention and reduces clutter.

Yes, including your bank account details (account number and sort code, or the bank name and account holder) accelerates payment and reduces client confusion. This is especially helpful for sole traders who rely on timely payments to manage cash flow. If you're GST-registered, also include your IRN. Never include credit card numbers or personal details. Make sure the account is in your legal name or registered trading name to match your business records for the IRD.

As a sole trader, you invoice in your own name and your income is taxed as personal income; your business and personal finances aren't legally separate. Companies invoice with a company name and company number, with separate tax obligations. Sole traders are simpler and cheaper to set up but have personal liability for business debts. Invoice requirements are similar, but sole traders use their IRN if GST-registered, while companies use their NZBN. The choice affects tax efficiency and legal protection.

If your client is outside New Zealand, the transaction is typically zero-rated for GST purposes if the service is exported. Include 'GST on international services: 0%' or 'Zero-rated for GST' on the invoice to clarify this. Specify the currency you're invoicing in (NZD, USD, EUR, etc.) and the exchange rate used. Keep clear records of the client's overseas address and export documentation. An accountant familiar with cross-border invoicing can ensure you meet IRD requirements for overseas income reporting.