How invoicing works
No double handling. The job details you already put on the certificate carry straight onto the invoice.
Create from the job
Tap Create invoice on an issued certificate and the client, site and reference fill in for you. Or start a fresh invoice for any saved customer.
Add lines and review
Pick labour, materials and vehicle costs from your Rates & costs list. GST is worked out on each line. Check everything on the review screen, then issue.
Send, get paid, export
Share a secure link, email it or download the PDF. Mark it paid with the date, then export a CSV for Xero when you do your books.
Everything you need to invoice a job
Built for sparkies running their own jobs, and for electrical companies with a team on the tools.
GST tax invoices
Titled “Tax invoice” when you’re GST-registered, with GST at 15% on each line and totals worked out for you.
Automatic numbering
Invoice numbers follow YYYYMM-NNNN automatically, and you can edit a number if you need to.
Saved customers
Keep your clients on file so their details drop onto the next invoice in a tap.
Rates & costs price list
Your Manager sets labour charge rates, material costs and vehicle operating costs once. Everyone picks from the same list.
Share by secure link
Clients see the invoice and your bank details without making an account. Links last 90 days. Email draft and PDF download too.
Paid and unpaid at a glance
Mark an invoice as paid with the date it came in. Filter by Paid or Unpaid to see who still owes you.
Locked once issued
Issued invoices can’t be quietly changed. To fix a mistake, void it and re-issue, so your records stay straight.
Export to Xero (CSV)
Select invoices and download a CSV in Xero’s sales invoice import format, ready to import into your Xero organisation.
Works on your phone
Invoicing runs in the WireWrite web app in any phone, tablet or desktop browser. Nothing extra to install.
Export invoices to Xero as a CSV
Already doing your books in Xero? Send your WireWrite invoices across in a few clicks, without retyping a thing.
- In WireWrite, filter to Not yet exported and select the invoices you want.
- Download the CSV (it’s laid out in Xero’s sales invoice import format), then confirm Mark as exported so they don’t go in twice.
- In Xero, go to Business > Invoices > Import, upload the file and choose Tax exclusive.
Good to know: this is a CSV export you import yourself, not a live connection. WireWrite doesn’t sync with Xero or log in to your Xero account.
Why “Tax exclusive”?
WireWrite line amounts are exclusive of GST, with GST at 15% added on each line. Choosing Tax exclusive when you import tells Xero to read the amounts the same way, so the totals in Xero match the invoices your clients received.
- Pick exactly which invoices to export
- “Not yet exported” filter stops duplicates
- Your Xero login stays with you
Xero is a trademark of Xero Limited. WireWrite and Phase Logic Ltd are not affiliated with, or endorsed by, Xero.
NZ tax invoice essentials, handled
WireWrite is set up around New Zealand GST so the basics are there every time.
- “Tax invoice” title when your company is GST-registered.
- GST at 15% calculated on each line, with the GST total and the total including GST shown.
- Invoices over $1,000 including GST prompt for a buyer identifier — an address, phone number, email, NZBN or website — in line with New Zealand’s taxable supply information rules.
- A review step before you issue, so you can check the client, lines and totals.
This is general information about how WireWrite works, not tax advice. You’re responsible for your own GST obligations — if you’re unsure, check with your accountant or Inland Revenue.
Teams and approvals
You decide who can bill your clients. Managers and Admins can issue invoices. For each Employee, a Manager picks one of three settings:
- Off — the default. No invoicing.
- Drafts for approval — they write the invoice on site; it waits under Awaiting approval for a Manager or Admin to issue.
- Can issue — for trusted staff who send their own invoices.
Rates & costs are set by the Manager, so your pricing stays consistent across the team.
Payment claims
Doing commercial or construction work? Create a payment claim under the Construction Contracts Act 2002 straight from an issued invoice, as a PDF.
A payment claim must be served with Form 1. WireWrite links you to the official form, but doesn’t reproduce it — include it when you serve the claim.
General information only, not legal advice. Check your contract and the Act for what applies to your job.
Financials pricing
Financials adds Invoices, Rates & costs and Payment claims to your WireWrite plan. One price for the whole company, whatever the size of your team.
- Per company, not per seat
- Free during your 30-day trial
- Add-on to a WireWrite plan with at least one seat
- Seats are $5/seat/month + GST
See billing details for how seats work.
Frequently asked questions
Does WireWrite connect directly to Xero?
No. WireWrite exports a CSV file in Xero's sales invoice import format. You import it yourself in Xero under Business > Invoices > Import, choosing Tax exclusive. It is not a live connection or sync, and WireWrite is not affiliated with or endorsed by Xero.
Will invoices end up in Xero twice?
Not if you use the Not yet exported filter. After you download the CSV, mark those invoices as exported and they drop out of that filter, so the next export only picks up new invoices.
Can I invoice from my phone on site?
Yes. Invoicing works in the WireWrite web app in any modern browser on your phone, tablet or computer. Invoicing is not in the iPhone, iPad or Android apps yet, so open WireWrite in your phone's browser to invoice on site.
Are WireWrite invoices GST tax invoices?
If your company is GST-registered, invoices are titled Tax invoice and GST at 15% is worked out on each line. For invoices over $1,000 including GST, WireWrite asks for a buyer identifier such as an address, phone, email, NZBN or website. You are still responsible for your own GST obligations, so check with your accountant or Inland Revenue if you are unsure.
Can I change an invoice after it is issued?
Issued invoices are locked so your records stay accurate. To correct one, void it and issue a new invoice. Drafts can be edited freely until you issue them.
Can my electricians create invoices?
Managers and Admins can always issue invoices. A Manager sets each Employee to Off, which is the default, Drafts for approval, or Can issue. Drafts for approval wait under Awaiting approval until a Manager or Admin reviews and issues them.
How much does Financials cost?
Financials is an add-on to a WireWrite plan with at least one seat. It is $10 a month plus GST per company, not per seat. It is free during your 30-day trial, and free for all subscribers until the end of 5 November 2026. Seats are $5 per seat per month plus GST.
Do my clients need a WireWrite account to see an invoice?
No. Share a secure link and your client can view the invoice and your bank details without an account. The link lasts 90 days. You can also email it or download a PDF.
Finish the job, send the invoice
Certificates and invoices in one place, built for New Zealand electricians. Try every feature free for 30 days.
No credit card required · Financials free for all subscribers until the end of 5 November 2026