Invoicing for electricians

Invoice Koi is an invoice app for electricians: your own rates in a price book, the service call and the testing as lines you tap.

Make an invoice free

The iPhone app is coming to the App Store.

An illustration of cable coiled beside a voltage tester, side cutters, three recessed lights and a breaker, with a koi swimming among them.

An electrical job is rarely one line. There is a rough-in weeks before the trim-out, a panel replacement that is its own conversation, testing at the end, and a service call that may or may not turn into work. By the time the paperwork is written the invoice is the last thing anybody wants to be building out of a notes app.

01On the document

What electricians
put on an invoice.

Save these items with your own rates. Tap to add them to an invoice, with the unit, price and totals filled in.

Line	Unit
Electrical labor	hrs
Service call and assessment	each
Panel replacement	each
Recessed light, LED dimmable	each
Outlet or switch, additional	each
Testing and certification	each
Materials and consumables	job

Set your own prices. The app's starter rates are placeholders. To bill one job today with nothing installed, the free electrician invoice template opens in your browser with these lines on it.

A job, grouped Subtotals per section

ROUGH-IN

Electrical labor$960

Wire and boxes$320

Subtotal$1,280

TRIM-OUT

Electrical labor$720

Recessed lights, 8 × LED dimmable$560

Outlets and faceplates$280

Subtotal$1,560

TEST AND CERTIFY

Testing and certification$180

Subtotal$180

Total$3,020

Grouped line items work on all nine templates.

A photograph of an electrician kneeling at an open breaker panel in a half-finished hallway, phone in one hand.

02Why electricians use it

Three things that
save the evening.

Your rates, not a guess at them

The price book holds your hourly rate, your service call, your recessed light price. One tap puts the item, the unit and the price on the line, and the totals resolve underneath.

Rough-in and trim-out on one invoice

Group the lines under headings with their own subtotals, so a customer reading the document can see what the rewire cost and what the lights cost without asking you to break it down.

Written in the attic, sent from the truck

Everything is on the phone. You can build the whole invoice standing in a mechanical room with no bars and it is there, complete, when you get back to the road.

03 · Questions

Asked by electricians.

Can I turn an electrical estimate into an invoice?

Yes. An accepted estimate converts to an invoice with the lines, the client, the tax and your terms carried across, so a job that was quoted in March bills in April without being retyped.

Does it work without an internet connection?

Yes. Create invoices, estimates and PDFs offline on your phone. AI, cloud backup and payment collection need an internet connection.

Do I need an account to use it?

No account is needed for core invoicing. Sign in for cloud backup, a second device or payment collection. Payments also need Stripe setup. Subscriptions use your App Store or Google Play account.

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