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Estimates and invoices for electricians, even when the wiring surprises you.
You often quote an electrical job before you can see everything that is behind the wall or inside the panel. Here is how to write the price so a surprise does not turn into an argument.
By Abrar · Updated · 8 min read
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The short answer
An electrical job is quoted before you know everything. So write the price with its assumptions, such as "the panel has room", and price a panel upgrade as a separate change. Put the permit and the inspection on the estimate. Get a yes before any extra work. InvoiceWren holds the estimate, the signed changes, the deposit and the payments on one job.
How an electrical job runs on paper
The work is different every day, but the paper follows the same path. The risky steps are the ones where you promise a price while part of the job is still hidden.
- 1
The call
A dead outlet, a breaker that keeps tripping, a panel upgrade, a new light, an EV charger or wiring for a remodel. Write down the address, what the customer sees, how old the house is and whether it is urgent. A burning smell or sparks means come now.
- 2
The visit
Look at the panel, the circuit and the new load. Write down the panel size, the free breaker spaces, what you found and a photo or two. For an EV charger, the home may not have the capacity: the U.S. Department of Energy says some homes might have insufficient electric capacity for Level 2 equipment [1].
- 3
The estimate
A flat price for a clear job, such as one charger or one fixture. A range, or time and materials, for troubleshooting. Write the circuits and breakers you add, the length of the wire run, the devices, the permit fee, and what is not included, such as a drywall patch, paint or trenching.
- 4
The permit
The Department of Energy says appropriate permits may be required from the local building and permitting authorities [1]. Ask your local office what it needs for the job, and put the fee on the estimate.
- 5
The yes, and the deposit
For a panel or a remodel, get a signed estimate. Ask for a deposit only for materials you must buy first. In California the down payment on a home improvement contract is capped at $1,000 or 10 percent of the price, whichever is less [2].
- 6
The work, and what you find
Opening a wall can show old wiring or an overloaded panel. Stop, take a photo, price the extra and get a yes before you start it. In California a change must be a written change order, signed by both sides before the change [2].
- 7
The inspection
The inspector checks permitted work. Write down the permit number, the date and the result. If the work fails, you fix it and book it again. Say in the estimate who pays for a second visit.
- 8
The final invoice and the payment
It lists the first scope, each approved extra, parts and labor, the permit fee, tax if it applies, the deposit paid and the balance. Then record how and when you were paid, and give a receipt.
Where electrical paperwork goes wrong
Most of these start with a price given before the panel was open.
A price given before you know the panel
A charger "install" turns into a sub-panel, or a service upgrade, because the house does not have the capacity [1]. You lose money, or the customer feels tricked.
What to do: Write the quote with its assumptions: "Assumes the panel has room and the wire run is under 40 feet." Say that a service upgrade, if needed, is priced separately.
Old wiring behind the wall
A remodel opens up wiring that is old or unsafe. The scope and the price both change in the middle of the job. In California, any change in price or scope has to be a written change order signed before the change [2].
What to do: One line for each extra, a photo of what you found, and a yes before you start. Do not fold it into the first price.
A permit or an inspection nobody priced
The permit fee is left off the estimate, or the inspection is two weeks away and the customer holds back the last payment until it passes.
What to do: Put the permit fee and the inspection as lines on the estimate. In the terms, say the final payment is due after the inspection passes.
Deposits out of step with the work
In California, the down payment on a home improvement contract cannot be more than $1,000 or 10 percent of the contract price, whichever is less, and payments cannot be more than the value of the work done [2]. Other states have their own rules.
What to do: Stage the payments: materials bought, rough-in done, final. Check your state's home improvement law before you ask for half up front.
Sales tax on the wrong part
In Texas, labor to repair residential property is not taxable, but the whole charge for repairing nonresidential property is [3]. In New York, repair and installation work is taxable and a capital improvement is not [4].
What to do: Show labor and materials as separate lines, and learn your state's rule. Ask an accountant when a job sits between the two.
Work outside what your license allows
Most states require electricians to be licensed [5]. In Texas, anyone who performs or offers to perform non-exempt electrical work must be licensed [6]. In California a license is needed when a project is valued at $1,000 or more in labor and materials, needs a building permit, or uses employee labor [7].
What to do: Check your state board before you quote a job that is new to you. Print your license number on the estimate and the invoice.
What InvoiceWren does for an electrician
Your phone covers the paper while your hands are in the panel.
Estimates with the assumptions written in
Add your lines, a note such as "assumes the panel has room", and the permit fee. Your customer reads it on their phone and signs it there.
Saved items for the lines you type every week
Save the trip charge, a 20-amp circuit, a GFCI outlet and the permit pass-through. Next time it takes a tap per line.
Photos on the line they belong to
Add up to 3 photos to a line. The photo of the full panel sits beside the line that says a service upgrade is a separate price.
Change orders approved before you start
Found old wiring? Send a change order. Your customer approves it on their phone. A change that is still waiting is never counted as approved.
One job for the deposit, the changes and the balance
Send a deposit invoice from the approved estimate. The final invoice shows the estimate, each approved change and each payment, line by line.
Paid by Zelle, bank transfer or your own link
Your customer pays you directly and we take no fee. They tap "I've paid", you confirm it in your own account, and the receipt goes out.
Estimates and approval · Change orders · Deposits, progress and final invoices · Getting paid and receipts
Need a document right now? Make a free estimate or a free invoice with no sign-up, then bring the job into InvoiceWren when you are ready.
Rules to check, by state
Electrical work is licensed by the state, permitted by your city or county and taxed by the state. These are examples from official pages we read on Nov 13 2026. They are not every rule. Check yours.
- Most states require electricians to be licensed [5].
- Texas: anyone who performs, or offers to perform, non-exempt electrical work must be licensed [6].
- California: a written contract is required for home improvement projects over $500. The down payment is capped at $1,000 or 10 percent of the price, whichever is less. A change needs a written, signed change order before the change [2].
- California: a license is needed when a project is valued at $1,000 or more in labor and materials, needs a building permit, or uses employee labor [7].
- EV chargers: a qualified electrician can add circuits for the capacity a Level 2 charger needs, and local permits may be required [1].
- Texas: labor to repair residential real property is not taxable. The whole charge to repair nonresidential real property is taxable [3]. That publication is dated Mar 2007, so confirm it with the Comptroller.
- New York: repair, maintenance and installation work is taxable. Capital improvement work is not [4].
This is general information, not legal or tax advice.
Checklist
Questions
Do I need a license to do electrical work?
In most states, yes. The Bureau of Labor Statistics says most states require electricians to be licensed [5]. Texas, for example, requires a license for anyone who performs or offers to perform non-exempt electrical work [6]. Check your state board.
Do EV charger installs need a permit?
The Department of Energy says appropriate permits may be required from the local building and permitting authorities [1]. Ask the building department in the city where you work, and add the fee to the estimate.
How do I quote an EV charger when I have not seen the panel?
Quote it with written assumptions, such as "assumes the panel has room". Say that a service upgrade, if the home needs one, is a separate price. The Department of Energy notes that some homes might not have enough capacity for Level 2 equipment [1].
How big a deposit can I ask for?
It depends on the state. In California the down payment on a home improvement contract cannot be more than $1,000 or 10 percent of the price, whichever is less [2]. Check the home improvement law where you work.
Do I need a signed change order for extra work?
California's home improvement contract rules require a written change order signed before the change [2]. In other states it is still the safest way to avoid a dispute. In InvoiceWren you send the change order, and your customer approves it on their phone.
Do I charge sales tax on labor?
It depends on the state and on the building. In Texas, residential repair labor is not taxable and nonresidential repair is [3]. In New York, repair and installation work is taxable and a capital improvement is not [4]. Ask your state tax office or an accountant.
Can I charge a trip fee and take it off the job?
Yes, many electricians do. Write it on the estimate, for example "trip charge $90, credited if you approve the work", so the customer knows before they say yes.
What if the inspector fails the work?
You fix it and book the inspection again. Decide before you start who pays for a second visit, and write it in the estimate.
At what size of job does California need a license?
The state licensing board says a license is needed when the project is valued at $1,000 or more in combined labor and materials, or when it needs a building permit or uses employee labor [7].
Send your next estimate from the job.
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Sources
- U.S. Department of Energy, Alternative Fuels Data Center: Charging Electric Vehicles at Home. Checked .
- California Contractors State License Board: What is a Contract?. Checked .
- Texas Comptroller: Real Property Repair and Remodeling (publication 94-116). Checked .
- New York State Tax Department: Contractors, Repair, Maintenance, and Installation Services to Real Property. Checked .
- U.S. Bureau of Labor Statistics, Occupational Outlook Handbook: Electricians. Checked .
- Texas Department of Licensing and Regulation: Electricians. Checked .
- California Contractors State License Board: What is illegal contractor activity?. Checked .
Prices and features change. We check these pages before each update. If something here is out of date, tell us at hello@invoicewren.com and we will fix it.