Building Maintenance Invoice Template - New Zealand

In New Zealand, you must charge GST on all building maintenance services if you're registered with the IRD—which is compulsory once turnover exceeds $60,000 annually. Standard-rated maintenance work including HVAC repairs, plumbing, electrical inspections, painting, and landscaping all incur 15% GST. The only exception is if you've specifically opted to claim GST exemption for certain services, which is rare in maintenance. Always include the GST amount separately on your invoice and verify your client's GST registration status. Many small contractors incorrectly assume exempt work exists in maintenance—it typically doesn't.

A valid NZ maintenance invoice requires your business name and IRD number, client details, invoice number, date issued, clear service descriptions with dates performed, quantity and rates for each item, the total GST amount calculated separately, and total amount due. If itemizing across multiple trades (electrical, plumbing, HVAC, landscaping), each should be clearly listed with its own line. Include payment terms and accepted payment methods. The invoice must be issued before or reasonably soon after service delivery. Missing details like descriptions of work performed or your IRD number creates compliance issues during audits.

Absolutely—property maintenance typically involves multiple specialist trades working on the same property simultaneously or over time. Invoicing them together on one document is standard practice, provided each service is clearly itemized with its description, date, and rate. This helps property managers consolidate billing and simplifies their accounting. Ensure each trade is distinct in the line description—'HVAC maintenance,' 'Emergency plumbing repair,' 'Electrical safety inspection'—so both you and the client understand what's being charged. This clarity prevents confusion during expense categorization and strengthens your documentation for tax purposes.

Emergency repairs can be invoiced identically to scheduled maintenance, but clearly differentiate them by noting 'Emergency call-out' or marking the service time specifically. Many contractors apply a higher rate for out-of-hours emergency work (evenings, weekends, public holidays), which should be stated separately on the invoice. Some charge a call-out fee plus hourly rates for emergency response, while others use fixed rates for common emergencies like blocked drains. Document the time the call was received and completed. This clarity protects you contractually and manages client expectations regarding premium pricing for urgent service delivery.

Create separate line items for each visit or service period on a single invoice, particularly if work spans days or weeks. For example, itemize 'Day 1: HVAC inspection and parts replacement' separately from 'Day 2: Follow-up filter installation.' This transparency helps clients understand what they're paying for and prevents disputes over labor costs. Alternatively, request progress invoices—issuing partial invoices at project milestones rather than waiting until completion. Document visit dates, hours worked, and materials used per visit. For ongoing contracts, many property managers prefer monthly summary invoices grouping all visits, which streamlines their accounting process significantly.

Standard payment terms for NZ building maintenance range from immediate payment for emergency repairs to 7, 14, or 30 days depending on your agreement. Large property management companies often negotiate 30-day terms, while smaller maintenance jobs may require payment on completion or within 7 days. Specify terms clearly on every invoice: 'Payment due within 7 days' or 'Due on receipt.' For ongoing contracts, align terms with the property manager's payment schedule. Late payment penalties can be included but must comply with the Late Payment of Commercial Debts (Interest) Act 1974. Clarify expectations upfront to reduce payment disputes and cash flow delays.

Common errors include forgetting to include your IRD number (a compliance issue), miscalculating or omitting GST entirely, and using vague service descriptions like 'repairs' instead of 'Emergency blocked drain clearance—2 hours labor.' Missing invoice dates, numbers, or payment methods create processing delays. Some contractors invoice before work completion, leading to disputes about scope changes. Not specifying quantities—especially for material-heavy jobs like landscaping hours or paint coverage—causes confusion over pricing. Finally, failing to keep copies for your records risks tax audit complications. Always double-check GST calculations and verify all required details before issuing.

The IRD requires you to retain all invoices and supporting records for a minimum of seven years from the invoice date. This applies to both issued invoices for services you've provided and received invoices for materials or subcontractor work. Organized records protect you during tax audits and help track maintenance history for properties. Maintain both digital and physical copies in case of system failure. If invoicing includes materials (HVAC parts, paint supplies, landscaping plants), keep receipts for those items alongside the invoice. This documentation also assists clients with their own tax filings and property maintenance records, strengthening your professional relationship.