Free Invoice App for
Canadian Contractors & Mechanics
Spanner is a free invoice app for Canadian contractors, mechanics, and tradespeople. Create GST/HST invoices in CAD, collect card payments via Stripe, and share by email or PDF — all from your phone in under a minute.
Free to download · Pro from CA$12.99/mo · No credit card
Who is Spanner for?
Built for Canadian tradespeople
Spanner handles GST, HST, PST, Canadian dollars, and the way Canadian contractors actually work — invoice on the job, get paid by card, no paperwork back at the office.
GST/HST invoicing
Correct tax rate per province — set once, Spanner calculates automatically on every invoice.
CAD invoicing
All amounts in Canadian dollars. Professional invoices your customers expect.
Card payments via Stripe
Every invoice gets a payment link. Customers pay in CAD from their phone — instantly.
Email & PDF sharing
Send the invoice the moment the job is done. Professional PDF, no desktop needed.
Mechanic-ready
Vehicle make, model, year, and registration on every invoice. Built for Canadian auto repair.
Online bookings
Let customers book directly via your unique booking link. Accept or decline in-app.
Tax rates by province — handled automatically
How to send a GST/HST invoice in 3 steps
Create the invoice
Add customer, line items, set your province. Spanner applies the correct GST, HST, or PST rate automatically.
Share it
Send by email or download as PDF. Professional invoice with your business name and correct tax breakdown in CAD.
Get paid
Customer pays by card in CAD via Stripe. Payment confirmed immediately.
What Canadian tradespeople say
"HST calculated automatically depending on my province. Saves me looking it up every single job."
Tyler M. · Ontario, CA
"Customers pay by card before they leave. Best upgrade to my contracting business this year."
Patrick R. · British Columbia, CA
"Clean CAD invoices in seconds. I was using spreadsheets before — this is a completely different world."
Kevin S. · Alberta, CA