🇳🇿 Built for New Zealand · 15% GST · NZD

Free Invoice App for
NZ Tradies & Mechanics

Spanner is a free invoice app for New Zealand tradies, mechanics, and small business owners. Create GST invoices in NZD with your NZBN, collect card payments via Stripe, and share via WhatsApp or PDF — all from your phone.

Free to download · Pro from NZ$12.99/mo · No credit card

Who is Spanner for?

Mechanics
Plumbers
Electricians
Builders
Roofers
Painters
Landscapers
Any Tradie

Built for NZ tradespeople

Spanner handles GST, NZD, NZBN, and the way NZ tradies actually work — invoice on the job, get paid by card, share via WhatsApp. No laptop, no spreadsheets.

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GST invoicing (15%)

NZ GST calculated automatically and shown clearly on every invoice. Toggle on or off per job.

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NZBN on every invoice

Enter your NZBN once — it appears automatically on every invoice you send.

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NZD invoicing

All amounts in New Zealand dollars. Professional invoices your customers expect.

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Card payments via Stripe

Every invoice gets a payment link. Customers pay in NZD from their phone — same day.

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WhatsApp & PDF sharing

Share invoices the way NZ tradies communicate — WhatsApp message with PDF attached.

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Mechanic-ready

Vehicle rego, make, model, year on every invoice. Full vehicle history per customer.

How to send a GST invoice in 3 steps

1

Create the invoice

Add customer, line items, toggle GST. Spanner calculates 15% and adds your NZBN automatically.

2

Share it

Send via WhatsApp, email, or PDF. Professional invoice with your business name, NZBN, and GST breakdown.

3

Get paid

Customer pays by card in NZD. Payment confirmed immediately — no more waiting for bank transfers.

What NZ tradies say

"GST done automatically, NZBN on the invoice, and customers can pay by card. All I needed as a tradie."

Hamish K. · Auckland, NZ

"Send the invoice before I even leave the driveway. Customers pay the same day. Best change I made to my business."

Craig W. · Wellington, NZ

"WhatsApp invoicing in New Zealand is a game changer. Customers actually read what I send them now."

Ben T. · Christchurch, NZ

FAQ — NZ tradies & mechanics

Does Spanner handle NZ GST (15%)?
Yes. Spanner calculates New Zealand's 15% GST automatically and displays it clearly on every invoice. Toggle on or off per job.
Can I add my NZBN to invoices?
Yes. Enter your NZBN once in settings and it appears on all invoices automatically.
Is Spanner free for NZ tradies?
Yes. Free to download — up to 5 invoices on the free plan, no time limit, no credit card required.
Can NZ customers pay invoices by card?
Yes. Spanner generates a Stripe payment link for every invoice. Customers pay in NZD from their phone, payment is instant.
Does Spanner work for mechanics in New Zealand?
Yes. Add vehicle rego, make, model, and year to every invoice. Vehicle history tracked automatically per customer.
Can I share invoices via WhatsApp?
Yes. Tap Share and send via WhatsApp, email, or download as PDF. Customer receives it instantly.

Start invoicing for free today

Free to download. Pro from NZ$12.99/mo. GST-ready. No credit card.