Automotive Invoice Template - New Zealand

Yes, GST must be displayed as a separate line item on your invoice. Show the subtotal before GST (15%), the GST amount, and the final total. This transparency is required by the IRD and helps customers understand their bill breakdown. Many automotive businesses list labor and parts subtotals separately first, then add GST to the combined amount. If a customer is GST-exempt, you must still show GST calculated, but note they're exempt. This clarity prevents payment disputes and demonstrates professionalism.

Your invoice must include: your business name and IRD number, customer name and address, invoice number and date, itemized service descriptions, quantities, rates, and the GST calculation shown separately. For automotive work, clearly describe what was done—don't just write "repairs." Include parts replaced, labor hours if applicable, and any diagnostic work. Payment terms and your contact details should also appear. Including a reference number from the vehicle (registration or VIN) helps customers track their service history.

Diagnostic fees can be listed as a separate line item, but most New Zealand mechanics make them creditable against repair costs if the customer proceeds with work. Clearly state on the invoice whether the diagnostic charge is refundable or will be deducted from repairs. This transparency manages customer expectations and reduces disputes. If no work is performed, the diagnostic fee remains payable. Separate itemization helps customers see exactly what they're paying for and builds trust—they appreciate understanding where their money goes.

Yes, separating parts and labor creates transparency and is best practice in New Zealand automotive services. List each part with its cost, then itemize labor separately—either as hourly rates or flat labor charges for specific tasks. This breakdown helps customers understand value and reduces perception of overcharging. It also simplifies warranty discussions; if a part fails, the cost is clearly identified. Some businesses add parts markup differently from labor, which becomes obvious when separated. This detail shows professionalism and supports customer confidence in your pricing.

Create a separate line item on your invoice labeled "Labor only—customer-supplied parts" with the labor charge. Don't add a markup for parts, but you may charge a small handling or installation fee if applicable. Document which parts were supplied by the customer and state that your warranty covers labor only, not the supplied parts. This protects you legally and manages expectations. Keep notes of the parts' condition when received in case disputes arise later. Clear invoicing prevents misunderstandings about warranty coverage and payment responsibility.

Yes, including warranty details on invoices is standard practice and protects both you and the customer. Specify what's covered: parts warranty (often supplied by manufacturers), labor warranty (your guarantee on work quality), and any exclusions. Note the warranty period—typically 12 months for parts, 90 days for labor in New Zealand automotive services. State that warranty doesn't cover wear and tear, misuse, or accidents. This clarity prevents future disputes and demonstrates that you stand behind your work. Customers appreciate transparent terms and feel more confident paying.

Use sequential invoice numbers that don't reset annually—this helps with IRD compliance and makes record retrieval easier. Many New Zealand automotive businesses use formats like "20250616-001" (date-sequence) or simply "001, 002, 003." Keep invoices in order and store copies for at least seven years for tax compliance. Digital records with timestamps are increasingly accepted. If you void an invoice, mark it clearly rather than deleting it. Proper numbering and retention protect you during audits and help settle customer payment disputes by providing clear documentation of work performed and dates.

Most New Zealand automotive businesses expect payment on completion of work (immediate payment or "due on receipt"). For fleet customers or ongoing business relationships, you might offer net 7, net 14, or net 30 terms. State terms clearly on the invoice—"Payment due upon completion" or "Due within 7 days." Consider requiring deposits for major repairs to cover parts costs upfront. Include your payment methods: cash, card, bank transfer, or EFTPOS. Clear payment terms reduce disputes and help with cash flow management, especially important for shops with high parts costs.