BIG INVOICE
The invoicing app built for the people who do the work. No fluff, no seat fees, no learning curve.
Why tradespeople use BIG INVOICE
Invoices
Invoice on the job site.
Tap, type, send. Professional PDF to your client in under a minute. No laptop required.
Estimates
Quote before you start.
Write an estimate, get approval, convert to invoice when the work is done. One app, start to finish.
Reports
Know what you're owed.
Every open invoice, every payment, every client — at a glance. No spreadsheets. No chasing.
Whether you're wiring a new build, troubleshooting a panel, or quoting a commercial fit-out, BIG INVOICE goes with you. Create a professional invoice in seconds — tap your client, add line items, send. Your customer gets a clean PDF immediately. You get paid faster.
Electrical work almost always starts with a quote. BIG INVOICE lets you write detailed estimates with your standard line items pre-saved — breaker panels, outlet installations, per-hour labor — then convert the estimate directly to an invoice when the job is done. No rekeying, no errors.
Your client list is right there in the app. Pull up any client's history, outstanding invoices, and contact details in seconds. When a repeat customer calls, you know exactly what you've done for them and what they've paid.
Electricians don't invoice from a desk. BIG INVOICE is a mobile-first iOS app designed for dirty hands, bright sun, and 5-year-old phones. Big tap targets, high contrast, and it works offline. Your business, in your pocket.


Download BIG INVOICE free. No trial. No credit card. No catch.
Download for iOS