Our free Service Invoice Template - New Zealand is specifically designed for New Zealand businesses providing professional services. This comprehensive template includes GST compliance, NZ dollar formatting, and local business requirements. Perfect for consultants, contractors, and service providers across New Zealand, this template streamlines your billing process while ensuring professional presentation. Features customizable fields for service descriptions, hourly rates, and client details, making it ideal for businesses of all sizes operating in the New Zealand market.
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Frequently Asked Questions
If your business is GST registered, you must show GST separately as a line item with the GST amount and rate (currently 15%). Your invoice should clearly state your GST registration number, the total before GST, the GST charge, and the total including GST. If you're not GST registered, you cannot charge or show GST. For overseas clients, GST reverse charge rules may apply if they're registered outside New Zealand. Always verify registration status before invoicing, as omitting GST information can create compliance issues.
Invoice timing depends on your agreement with the client, but best practice is to invoice promptly after service delivery. For ongoing work, invoice weekly, fortnightly, or monthly as agreed. For fixed-project services, invoice upon completion unless a milestone arrangement exists. Pre-invoicing (requesting deposits or retainers) is acceptable if both parties agree upfront. Never invoice before starting work without a signed engagement letter confirming this arrangement. Prompt invoicing improves cash flow and demonstrates professionalism while memories of the work are fresh.
Service descriptions should be specific enough that the client immediately understands what you charged for and can verify the work matches. Instead of "Consulting," write "Business strategy session—4 hours, 23 June" or "Website audit and recommendations report." Detail prevents misunderstandings and protects you in disputes. Include dates, hours, or scope markers. Vague descriptions can trigger payment delays or rejection. For retainer work, briefly describe the period and key deliverables. The invoice should stand alone as a clear record of work completed.
Common NZ service invoices use Net 7, Net 14, or Net 30 payment terms depending on client relationship and industry. Consultancy and professional services typically use Net 30. Fast-paying clients or one-off projects may warrant Net 7 or payment on invoice. Specify the due date clearly (e.g., "Due 30 days from invoice date: 20 July 2025"). Include bank details and payment reference. Negotiate terms upfront to manage cash flow. Late payment interest (agreed in writing) can be applied under NZ law if specified in your payment terms.
Retainer invoices clearly state the retainer period (e.g., "Monthly retainer for June 2025") with a fixed amount or itemized services included. List any additional services beyond the retainer separately with their charges. If hours are bundled, note the total hours available and mark used versus carried-forward hours. Issue retainer invoices on the same date each month for predictability. Detail what's included versus excluded to prevent scope creep disputes. This clarity protects both parties and makes billing easier as the relationship continues.
Yes, you can invoice for completed milestones or partial work if agreed in your contract with the client. Break the project into phases and invoice as each phase completes. Clearly label the invoice with the phase or milestone (e.g., "Phase 1: Discovery and Requirements"). This approach improves cash flow and prevents disputes about what constitutes "completion." Ensure the contract specifies milestone definitions and payment triggers. Never invoice for partial work without written agreement, as clients may refuse payment for incomplete deliverables.
Address disputes immediately by requesting clarification on what aspect they're questioning. Provide detailed invoices with dates, descriptions, and evidence of work (notes, deliverables, communications). If the service was performed as agreed, politely stand firm with documentation. Offer to discuss the work in detail or provide additional information. For honest disagreements, consider a partial credit if your error is clear. Document all dispute communications. If unresolved, include a note on future invoices that disputes must be raised within 7 days, and maintain records for potential debt recovery.
The IRD requires you to retain all business records, including invoices and supporting documentation, for at least 7 years. This includes copies of invoices you've issued and received, along with proof of payment or non-payment. Keep electronic or paper records organized by date and client. For service businesses, retain notes or evidence supporting the work described (emails, meeting notes, deliverables). Proper record-keeping protects you during tax audits and disputes, and demonstrates compliance if the IRD investigates your business practices.