Self-Employed Invoice Template - New Zealand

You must include GST only if you're registered with the IRD. GST registration becomes mandatory once your annual turnover exceeds $60,000 (or $24,000 if you provide services). If you're under the threshold, you may still register voluntarily. When registered, GST is calculated as 15% of your service fees and must appear as a separate line item on invoices. Unregistered self-employed workers should note their non-GST-registered status clearly to avoid client confusion.

An IRD-compliant invoice requires your business name, address, ABN or identification number, invoice number, date issued, client name and address, itemized service descriptions with rates, GST amount (if registered), total amount due, and payment terms. The IRD also requires your invoice number to be sequential, unique, and never reused. Including a purchase order reference or client invoice number helps with record-keeping. This information supports both your tax records and client payment processing.

Use sequential, non-repeating invoice numbers that make it easy to track all invoices issued. Many self-employed professionals start with a simple format like 001, 002, 003 or include the date (e.g., 20250620-001). Never skip numbers, as gaps raise IRD questions during audits. Keep a master record of all invoice numbers issued, along with dates and amounts. This system demonstrates good financial management to the IRD and helps you spot missing invoices quickly.

Issue an invoice only after work is completed or delivered. Use quotes or estimates before confirming pricing with the client. Once the client accepts and you've provided the service, send an invoice requesting payment. Some self-employed professionals issue invoices for deposits before starting work, clearly marked as "Invoice - Deposit." Never use quotes for payment collection. This distinction keeps your records clear and prevents disputes about what services were actually invoiced.

Common NZ payment terms for self-employed work range from immediate payment (due on receipt) to Net 30 days. Net 14 or Net 21 are popular for regular clients. Payment by bank transfer dominates in New Zealand, so always include your bank details (account holder name, bank name, account number). Some contractors require deposits for larger projects before commencing work. Clearly state your preferred payment method and any early payment discounts or late payment penalties on the invoice itself.

Self-employed invoices are primary evidence of income earned and support your annual income tax return filed with the IRD. Each invoice documents the service provided, amount charged, and GST collected (if registered). Keep all invoices for at least seven years for IRD audit purposes. Your invoices also support claiming business expenses—the paper trail between income invoices and expense receipts demonstrates genuine business operations. Well-organized invoices significantly reduce tax return preparation time and IRD inquiry risk.

Core invoice requirements are the same across industries, but certain sectors have additional considerations. Tradespeople and contractors often itemize labor and materials separately. Consultants and designers may bill by project or hourly rate. Creative professionals sometimes include usage rights or licensing terms on invoices. Medical and legal professionals have confidentiality requirements affecting how they describe services. Regardless of industry, all NZ self-employed invoices must meet the same IRD compliance standards for GST, numbering, and documentation.

Avoid missing or inconsistent invoice numbers, which trigger IRD questions. Don't round GST amounts—calculate precisely at 15%. Never use informal descriptions like "misc work" instead of specific service details. Forgetting to include your address, phone, or email makes it hard for clients to reach you with questions. Don't mix GST amounts if some services are GST-exempt. Failing to state payment terms clearly leads to payment delays. Finally, avoid using old invoice templates that reference outdated tax rates or formats, which can appear unprofessional and create compliance issues.