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Electrician Invoice Template NZFree, GST-Compliant & Ready to Use

A free electrical invoice template for NZ sole traders and small electrical businesses. Covers labour, call-out fees, materials markup, and GST — with a place for your EWRB registration number so every invoice looks professional. Or skip the template and use Invio to invoice straight from your phone on site.

No credit card • GST calculated automatically • Send from your phone

NZ Requirements

What Goes on an Electrician Invoice in NZ

A GST-registered sparky's invoice needs more than just a total. Here's what IRD requires and what your customer needs to see.

Your business details

  • Business name (or your name if sole trader)

  • GST number — same as your IRD number

  • EWRB registration number

  • Phone number and email

  • Physical or postal address

Invoice identifiers

  • Invoice number (sequential, for your records)

  • Invoice date

  • Payment due date

  • Bank account for payment

Job and line items

  • Description of work done — be specific, e.g. "Switchboard upgrade — Hager 18-way consumer unit"

  • Labour hours × hourly rate

  • Call-out fee (if applicable)

  • Materials at cost + markup, listed separately

  • After-hours or weekend surcharge (if applicable)

  • CoC number reference where prescribed work was completed

GST breakdown

  • Subtotal (ex GST)

  • GST amount at 15%

  • Total amount payable (inc GST)

  • Customer name and address (required for invoices over $1,000)

Not GST-registered yet?

If your electrical business earns under $60,000/year you do not have to register for GST. Leave out the GST number and GST lines — just show your total. Once you cross the threshold, registration is compulsory within 21 days. Check the full NZ invoice requirements guide if you are unsure.

Sample Invoice

What an Electrical Invoice Looks Like

A realistic example for an EV charger installation and switchboard upgrade job in Wellington.

INV-0083.pdf

Crestline Electrical Ltd

8 Rongotai Road
Kilbirnie, Wellington 6022
GST Number: 118-742-931
EWRB Reg: EW-045821
021 834 652

Tax Invoice

Invoice No.

INV-0083

Issue Date

27 May 2026

Due Date

10 Jun 2026

Billed To

James & Lucy Harrington

14 Mahoe Street
Karori, Wellington 6012

Job Reference

EV charger install + switchboard upgrade — CoC No. CE-2026-07341

Call-out fee

Standard weekday call-out

Rate

$80.00

Qty

1

Amount

$80.00

Labour — switchboard upgrade

Remove old board, install Hager 18-way consumer unit

Rate

$125.00

Qty

4.0

Amount

$500.00

Labour — EV charger installation

Run dedicated 32A circuit, mount Type 2 charger

Rate

$125.00

Qty

3.5

Amount

$437.50

Hager 18-way consumer unit

Materials at cost + 25% margin

Rate

$620.00

Qty

1

Amount

$620.00

Cable, conduit & fittings

6mm² twin & earth, conduit, cable clips, connectors

Rate

$310.00

Qty

1

Amount

$310.00

Certificate of Compliance fee

CoC issued for prescribed electrical work

Rate

$55.00

Qty

1

Amount

$55.00

Payment Details

Please pay to:
Crestline Electrical Ltd
02-0741-0298340-00
Reference: INV-0083

Subtotal

$2,002.50

GST (15%)

$300.38

Total Due

$2,302.88

Want this pre-filled with your business name, EWRB number, rates, and GST number?

Step-by-Step

How to Fill Out an Electrician Invoice

Follow these steps after every job to get paid faster and stay on the right side of IRD.

1

Fill in your business details

Add your trading name, GST number, EWRB registration number, address, phone, and email at the top. If you trade as Crestline Electrical Ltd, use that — not your personal name. Your EWRB number confirms to the customer that the work was carried out by a licensed person.

2

Set the invoice number and dates

Use a sequential number — INV-0083 after INV-0082. The invoice date is today. Set a due date (14 days is standard; 7 days is reasonable for smaller residential call-outs). Consistent numbering helps if you ever need to prove payment history to IRD or a disputes tribunal.

3

Add the customer details

For invoices over $1,000 you must include the customer's name and address. Do this on every job — it looks professional and removes any ambiguity about who the invoice is for if a dispute arises later.

4

List every line item separately

Don't lump everything into one number. Split call-out fee, labour hours × rate, each material or fitting, any CoC fee, and any after-hours surcharge. Example: "Labour — EV charger install: 3.5 hrs × $125 = $437.50". Detailed descriptions get paid faster and reduce back-and-forth with the customer.

5

Reference the CoC if you issued one

For prescribed electrical work, you must issue a Certificate of Compliance. Reference the CoC number in the job description or notes — for example, "CoC No. CE-2026-07341 issued". If you charge a separate CoC fee, add it as its own line item. This keeps the paperwork consistent and is useful if the customer ever sells the property.

6

Calculate GST and show it clearly

Multiply your subtotal by 0.15 to get the GST amount. Show subtotal, GST, and total as three separate lines — never just a single total. Use the free Invio GST calculator at /gst-calculator-nz if you want a quick check before sending.

7

Add your bank account details and send

Include your bank account number and ask the customer to use your invoice number as the payment reference. Then send it the same day. "Pay to: Crestline Electrical Ltd 02-0741-0298340-00, Ref: INV-0083" is all you need. If you use Invio, hit send from your phone before you pull out of the driveway.

Watch Out For

Common Electrician Invoice Mistakes

These mistakes slow payment, create disputes, or put you offside with IRD. Easy to fix once you know them.

Missing EWRB registration number

e.g. Invoice with no licence reference

Add your EWRB number to the invoice header. Commercial clients often require it before approving payment, and it confirms your legal right to do the work.

No CoC reference on prescribed work

e.g. "EV charger installed — $1,200" with no CoC mention

If you issued a Certificate of Compliance, reference it on the invoice. Add "CoC No. CE-2026-07341 issued" in the job description or notes. Customers may need this for their records or insurance.

Wrong or missing GST

e.g. "Total: $2,302" with no GST line

Show subtotal, 15% GST, and GST-inclusive total as three separate lines. Commercial customers need this to claim GST back from IRD.

Materials and labour lumped together

e.g. "Switchboard upgrade — materials and labour: $1,800"

List parts separately from labour. Many customers — especially commercial ones — will not approve payment until the invoice is properly itemised. It also protects you if there's a warranty question later.

No bank details on the invoice

e.g. Invoice sent with no payment instructions

Always include your bank account number and ask for the invoice number as the payment reference. No bank details means slow or lost payments.

Sending days after the job

e.g. Invoice sent a week after the switchboard work

Send it the same day. Every day you wait, the chance of a prompt payment drops. If an invoice is already late, see our guide on chasing overdue invoices at /chase-overdue-invoices-nz.

Line Item Guide

Electrician-Specific Line Items

These are the line items most NZ sparkies use. Rates vary — Wellington and Auckland tend to run higher than regional centres.

Standard labour rate

$95 – $150/hr

Ex GST. Auckland and Wellington run higher; regional NZ lower.

After-hours / weekend labour

1.5× – 2× standard

State clearly in your quote. A $120/hr sparky charges $180–$240/hr after-hours.

Call-out fee

$60 – $120 flat

Charged per visit to cover travel and mobilisation. Some sparkies waive it for regulars.

Materials markup

Cost + 20 – 30%

Covers handling, warranty, and supplier runs. List parts at your sell price — you don't need to show your cost.

Certificate of Compliance fee

$45 – $80 flat

For prescribed electrical work. Some sparkies include it in labour; others list it separately.

Disposal / waste fee

$30 – $60 flat

For removing old switchboards, cables, or fittings that need safe disposal.

GST

15% on all items

Applied to the subtotal if you are GST-registered. Use the free /gst-calculator-nz to check.

GST example: Sparky A bills $120/hr labour + $80 call-out + materials at cost +25%. For a 2-hour job with $240 in materials: ($240 + $80 + $300) = $620 subtotal. GST: $93.00. Total: $713.00. Use the GST calculator to check your numbers before sending.

Invio vs Templates

Why Invio Beats Word and Excel for Sparkies

Templates are a fine starting point. But most electricians move to proper software once they're running 10+ jobs a month.

Invoice from your van on site

Fill in labour hours, materials, and call-out fee before you drive off. No paperwork to chase at the end of the week, and the customer gets the invoice while the job is still fresh.

GST calculated automatically

Invio does the 15% for you on every line item and shows subtotal, GST, and total correctly — no spreadsheet formula to accidentally break.

Saved clients and rates

Store your repeat customers and standard labour rate. Next job for the Harringtons? Two taps and the invoice is half-filled already.

Payment reminders built in

Invio Pro sends automatic follow-ups when invoices go overdue — so you are not the one making awkward calls. Fewer late payments, less chasing.

IRD-compliant every time

Every Invio invoice has the right fields: GST number, date, breakdown, customer address when required. You can't accidentally send a non-compliant invoice.

PDF ready to email or print

Send the invoice by email directly from Invio, or download a clean PDF if the customer prefers paper. It's not a Word doc that looks different on every printer.

Ready to invoice your next electrical job properly?

Start with the free NZ invoice template, or sign up to Invio and send your first electrical invoice in under two minutes — GST calculated, EWRB number saved, and the PDF ready to email before you leave the site.

FAQ

Electrician Invoice FAQs

Common questions from NZ sparkies about invoicing, GST, EWRB, and getting paid.

Do I need to add GST to my electrician invoice?
If your electrical business has annual turnover over $60,000, you must be GST-registered and charge 15% GST on all work. Show it clearly: subtotal, GST amount, and GST-inclusive total as three separate lines. If you are under the threshold and not registered, leave out the GST lines entirely — you cannot charge GST you are not registered for.
What's the minimum information an electrician invoice needs in NZ?
For invoices over $200, your invoice needs your business name, GST number (if registered), invoice date, description of work done, and the GST treatment or amount. For invoices over $1,000, you also need the customer name and address. See the full breakdown at invio.co.nz/tax-invoice-requirements-nz.
Should I include my EWRB number on the invoice?
Yes — adding your EWRB registration number is good practice on every electrical invoice. It confirms to the customer (and any subsequent inspector) that the work was done by a licensed person. It is not a strict IRD requirement, but many commercial clients expect to see it, and it protects you professionally.
How do I charge for after-hours electrical work?
Most NZ sparkies charge 1.5× their standard rate for evenings and weekends — for example, $180/hr after-hours vs $120/hr standard. Some add a fixed after-hours surcharge instead. Either way, be clear in your quote and match the invoice exactly to what was agreed. Invio lets you add a separate after-hours line item so it's never hidden inside the standard labour total.
Can I send an electrical invoice from my phone on site?
Yes. Invio is built mobile-first — fill in your line items, add the call-out fee and materials, and send the invoice by email before you drive off. No paperwork to chase at the end of the week, and the customer gets it while the job is still fresh.
How do I reference a Certificate of Compliance on the invoice?
If you issue a CoC for prescribed electrical work, add a line to the invoice description or notes section: for example, "Certificate of Compliance issued — CoC No. CE-2026-04871". If you charge a separate CoC fee, add it as its own line item (e.g. "CoC issue fee — $45 + GST"). This keeps the paper trail clear for the customer and for any future inspection.
What is the difference between residential and commercial electrical invoicing?
For residential work the main rules are IRD compliance (GST, correct fields) and EWRB registration. For commercial jobs, the Construction Contracts Act 2002 also applies — it gives you a formal payment claim process and stronger rights if the customer does not pay. A standard Invio invoice meets the requirements for both, but larger commercial contracts may need a formal payment schedule under the Act.
How quickly should I send the invoice after the job?
Send it the same day wherever possible — ideally before you leave the site. Customers remember the job clearly and are far more likely to pay promptly. Waiting a few days means the urgency fades, and disputing individual line items becomes harder to resolve. If you already have an overdue invoice, see our guide at /chase-overdue-invoices-nz.
Get Started

Invoice Every Electrical Job Correctly, From Your Phone

Invio is free for sole traders. Set up your electrical rates and EWRB number once, send GST-compliant invoices from site, and let Invio Pro handle overdue reminders so you get paid without the chase.

Free to start • GST calculated automatically • No credit card required