The Ontario Electrician Invoice Template (Free, CRA-Compliant, 2026)
A free, CRA-compliant invoice template built specifically for Ontario electricians. Includes HST handling, ESA job number fields, and the exact line items the CRA wants to see.
If you run an electrical contracting business in Ontario, your invoices do three jobs at once: they get you paid, they satisfy the CRA, and they give your customer the paperwork they need to claim an input tax credit (or a home renovation tax credit). A sticky note with "service call — $450" doesn't do any of that.
This post walks through what an Ontario electrician invoice actually needs, a template you can copy, and the small details that keep you out of trouble with the CRA and the ESA.
The minimum fields an Ontario electrician invoice must include
The CRA's rules for invoices that qualify a customer to claim HST input tax credits are specific. For invoices over $30, you need:
- Your business or trade name exactly as registered
- Your business address
- Your HST registration number (the 9-digit BN + "RT0001")
- Invoice date
- A description of the work (not just "electrical")
- The total amount
- The HST rate (13% in Ontario) and either the HST amount or a "price includes HST" statement
For invoices over $150, add:
- Customer's name or business name
- Payment terms (Net 15, Net 30, due on receipt, etc.)
Miss the HST number and your customer cannot claim the input tax credit, and you will get the call — usually two months later when their bookkeeper is finalising the quarter.
Ontario-specific fields worth adding
These are not required by the CRA, but they are expected in Ontario's electrical trade and they reduce payment disputes:
- ECRA/ESA Licence number — every electrical contractor in Ontario is required to have one. Print it on the invoice. Commercial customers and property managers frequently refuse to pay without it.
- ESA Notification (Permit) number — if the job required a permit, put the notification number on the invoice so the customer can tie it to the inspection.
- Job site address — separate from the billing address. Important when you're billing a property manager for work at a different building.
- Labour hours × rate shown as a line item — keeps disputes short when a homeowner asks "why did this take 4 hours?"
- Materials itemised separately from labour — some commercial customers require this for their own accounting.
- Warranty statement — a one-liner like "Workmanship warranted for 12 months" sets expectations and is worth its weight in reduced callbacks.
The template
Here is a minimum viable invoice structure you can replicate in any tool (Word, Google Docs, or JustFacture):
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[Your Business Name] INVOICE #1042
[Street address, City, ON, Postal Code] Date: 2026-04-21
Phone: (xxx) xxx-xxxx Due: 2026-05-05
Email: you@business.ca Terms: Net 14
HST #: 123456789 RT0001
ECRA/ESA #: 7012345
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BILL TO: JOB SITE:
[Customer name] [Site address]
[Billing address] ESA Notification #: N-2026-xxxx
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DESCRIPTION QTY RATE AMOUNT
Service call — diagnose tripping
breaker on kitchen circuit 1 $125.00 $125.00
Labour — replace 20A breaker and
re-terminate neutral bar 2.0 $115.00 $230.00
Materials — 20A Siemens breaker,
wire nuts, labelling 1 $48.00 $48.00
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Subtotal $403.00
HST (13%) $52.39
TOTAL DUE $455.39
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Payment: e-Transfer to you@business.ca
Workmanship warranted for 12 months.
That is the entire legal minimum, dressed up enough that no commercial customer will push back.
How HST actually works for Ontario electricians
Ontario is a harmonised province — one combined rate of 13% HST, administered by the CRA. You do not deal with a separate provincial tax the way BC or Saskatchewan contractors do.
A few specifics for electrical work:
- Residential service calls, installs, and repairs — 13% HST applies in full. There is no residential exemption for electrical labour.
- New home construction — the general contractor usually handles the HST rebate paperwork on the whole build, but you still charge HST on your subcontracted work to them.
- Out-of-province customers — if you travel to Quebec for a job, you charge Quebec's tax. If a customer in Manitoba hires you but the work is done at their Ontario cottage, you charge Ontario HST. Place-of-supply, not place-of-business.
- Below the $30,000 small supplier threshold — you do not have to register for or charge HST. But voluntarily registering early is usually worth it: you get to claim input tax credits on your van, tools, and materials, which typically more than offsets the admin.
The CRA small supplier rules govern when you have to register. Once you cross $30,000 in rolling four-quarter revenue, you have 30 days to register.
The seven most common mistakes
After looking at a lot of Ontario electrician invoices, these are the recurring ones:
- No HST number on the invoice. The customer cannot claim their input tax credit. You will get the call.
- HST charged but no registration number exists yet. This is worse — technically illegal. If you are charging HST you need to be registered and remitting.
- ECRA/ESA number missing. Property managers and commercial customers will hold the invoice in AP until you resend with it.
- "Electrical work" as the only description. The CRA wants a meaningful description. A one-line scope is fine; "electrical" is not.
- Rounding the HST on the total instead of calculating 13% of the subtotal. Pennies, but some customers' accounting systems reject invoices where 13% × subtotal ≠ HST line.
- Missing the invoice number or reusing numbers across years. Every invoice needs a unique sequential number for your own audit trail.
- No payment terms. "Net 30" or "Due on receipt" should be on every invoice. Without it, you have no leg to stand on at day 45.
Getting paid faster
A few things that consistently move invoices from "sitting in AP" to "paid this week":
- Send the invoice the same day the job ends. Every day you wait, the urgency drops.
- Include e-Transfer instructions. For residential, this is the default. Include the exact email address to send to.
- Offer a 1.5%/month interest line below the total. You rarely need to charge it, but it signals that overdue invoices will not be ignored.
- Follow up at day 15, day 30, day 45. A polite one-liner at each. Most late payers are not malicious; they have just lost the invoice in their inbox.
- For commercial, get a PO number on the invoice. Large customers will not pay without it, and you want that known before the work happens.
The template as a lead magnet
You can build this in Word and spend 20 minutes per invoice reformatting it, or use software that fills all these fields automatically, calculates the 13% HST, assigns sequential invoice numbers, and emails the PDF from your own domain.
If you are still invoicing by hand, that is probably the single biggest time leak in your week. The average electrician we talk to spends 3–5 hours a week on paperwork. At a $115/hr billable rate that is $345–$575 a week of lost time.
Download / use the template
There are two ways to use this:
- Copy the structure above into a Word or Google Docs template. Free, takes 15 minutes to set up, you maintain it forever.
- Try JustFacture free for 30 days — the Ontario HST, ECRA/ESA fields, job site vs billing address split, sequential numbering, and e-Transfer instructions are all built in. You fill in the job description and it generates the CRA-compliant PDF.
Either way, a proper invoice is the difference between getting paid in 7 days and chasing money at day 45. If the thing you are doing now is a sticky note or a text message, almost any structured template is an upgrade.
Not tax or legal advice. Verify current HST rates and CRA requirements at canada.ca and ECRA/ESA licensing at esasafe.com before relying on this for filings.