Labor Invoice Template - New Zealand

A labor invoice specifically bills for work performed, time spent, or skilled services—common for construction, plumbing, electrical, and maintenance work in NZ. Use this template when your primary deliverable is labor hours or task completion rather than goods. It differs from product invoices because it emphasizes time, hourly rates, or service descriptions rather than item quantities. The NZ labor invoice template is designed to clearly communicate what work was done, how long it took, and the associated costs, making it ideal for tradespeople, contractors, and service providers billing on an hourly or per-task basis.

GST-registered businesses must include GST on all labor invoices. Add the 15% GST to the subtotal and clearly display it as a separate line item before the final total. Only include GST if you're registered with the IRD; if not, state "Not GST registered" on your invoice. The template automatically formats NZ Dollar currency ($) and provides space for GST calculations. Ensure your IRD number appears on the invoice if you're registered, and keep records of all invoices and GST paid for your obligations to the IRD.

NZ invoices must include your business name and address, client name and address, invoice number and date, a detailed description of work performed, hourly rate or fixed amount, GST (if applicable), total amount due, and payment due date. Your IRD number should be included if you're GST-registered. Itemizing labor by task (e.g., "Electrical installation—8 hours at $85/hr") helps clients understand the breakdown and prevents disputes. Retain a copy for your records; the IRD expects these for up to seven years to support your income and tax returns.

Hourly rates work best for unpredictable jobs where scope might change, such as plumbing repairs or fault-finding. Fixed pricing suits well-defined tasks like installing flooring or repainting a room. Many NZ tradespeople use both: hourly for diagnostics, fixed for defined work. The labor invoice template accommodates both by letting you specify quantity (hours) and rate per hour, or enter a lump-sum amount. Choose based on job certainty and client expectations; clearly state your rate structure upfront to avoid confusion or payment disputes.

Yes, you can adapt this template for retainer arrangements by invoicing monthly for retained hours or a flat retainer fee. If you maintain ongoing maintenance contracts (e.g., weekly HVAC checks), create separate invoices for each billing period, describing the services rendered. Some contractors invoice for unused retainer hours as credits on the next invoice. The NZ labor invoice template is flexible enough to handle regular invoicing schedules; just ensure each invoice clearly states the period covered and itemizes work performed so clients understand what they're paying for.

Specify a payment due date (typically 7–30 days from invoice date; many NZ contractors use "due on receipt" or "net 14 days"). Include your preferred payment methods—bank transfer is standard in NZ, so provide your account details. Some contractors accept cash for smaller jobs or credit card payments with a surcharge. Clearly state late payment terms if applicable to protect cash flow. The template provides space for these details; professional payment instructions reduce disputes and speed up settlement, which is essential for small trades businesses managing multiple clients.

The IRD requires you to retain invoices and supporting documents for at least seven years, even if your client has paid. Labor invoices are evidence of income and are essential during tax audits, so store digital copies securely and maintain backup records. If you're GST-registered, invoices support both your GST returns and annual tax filings. Organized record-keeping also helps you track income across clients, identify trends, and simplify end-of-year accounting. Use invoice numbers consistently (the template includes this field) to create a clear audit trail for the IRD.

Issuing labor invoices is typically associated with contractor or self-employed status, but classification depends on multiple factors: how you control your work, whether you provide equipment, if you work for one client or many, and your contractual arrangements. Regular invoicing strengthens a contractor position for tax purposes. However, the IRD uses a "90-day rule" and other tests to determine employment status, regardless of invoicing method. Consult with an accountant or tax advisor to confirm your classification, as it affects tax filings, ACC levies, and business deductions.