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Most electricians are excellent at the trade and running their books on gut feel.
That works fine until a job that looked profitable on paper ends up barely breaking even, and nobody can explain where the money went.
The fix is basic bookkeeping for electricians and isn’t complicated software or a finance degree.
It’s three habits: tracking job costs before and after every project, applying consistent material markups, and setting up team pay in a way that doesn’t create a tax surprise in April.
Get those three things right, and the profitability picture becomes a lot clearer.
Job costing means assigning every dollar of labor and materials to a specific project so you can compare what you estimated against what you actually spent.
For electrical contractors, this is the single most important financial habit because the gap between estimate and reality is where margin disappears.
Most electrical jobs have three cost buckets: direct materials (wire, panels, conduit, fixtures), direct labor (hours worked by your crew on that specific job), and subcontracted work if you bring in a specialty trade.
Overhead, like your truck payment and insurance, gets allocated separately. When those categories stay separate in your books, you can pull a report after each job and see exactly where you came in versus where you bid.
The industry benchmark most electrical contractors aim for is a gross margin of 35% to 45% on residential service work and 20% to 30% on commercial construction bids, where competition is tighter.
If your actual margin is consistently below those ranges and you can’t point to a specific cost category that’s running high, your books probably aren’t capturing the full picture.
Labor hours not tracked to the job, materials billed to the general account, and cash purchases that never make it into the system are the usual culprits.
Most electrical contractors mark up materials between 20% and 35% depending on job type, material cost, and local competition, though some specialty or service-call work justifies markups closer to 50%.
The right number for your business depends on what your overhead actually costs to carry per job, not on what someone at a trade association dinner said they charge.
The common mistake is marking up materials by a fixed percentage without accounting for carrying cost.
If you’re buying materials on net-30 terms from the supply house and waiting 60 days to collect from a general contractor, you’re financing that material purchase out of pocket for a month.
That cost belongs in the markup calculation.
Let’s look at an example. An electrician buys $8,000 in wire and panel equipment for a commercial tenant improvement job. At a 25% markup, the client gets billed $10,000 for materials, leaving $2,000 to cover the supply house account, the time spent ordering and picking up materials, and any waste or damage.
If the job ran two weeks over because the GC pushed the schedule, that $2,000 covers less than it looked like upfront. Tracking the actual cost-to-markup ratio on finished jobs is the only way to know whether your markup is doing its job.
How you classify and pay your crew is one of the biggest variables in what your tax bill looks like at year-end, and it’s also one of the areas the IRS watches closely in the trades.
The core question is whether the people working on your jobs are employees or independent contractors, and the answer affects both what you withhold and what you owe.
Employees require you to withhold federal and state income tax, Social Security, and Medicare from every paycheck and to match the employer portion of Social Security and Medicare, which runs 7.65% of gross wages.
You also owe federal unemployment tax (FUTA) on the first $7,000 of each employee’s wages each year, currently at 6% before any state credit. These payroll taxes add roughly 10% to 15% on top of the base wage depending on benefits and state rules.
Independent contractors handle their own taxes, which looks cheaper upfront but creates risk if the classification is wrong. The IRS uses a behavioral control, financial control, and relationship test to determine worker status. An electrician who works exclusively for your company, uses your tools, and follows your schedule on every job is almost certainly an employee regardless of what the contract says.
Misclassification penalties can include back payroll taxes, interest, and penalties going back three years.
If you’re running crew and unsure how to structure the books around payroll, Fort Worth small business accounting support can help you set up the right framework before a payroll audit makes the decision for you.
The most reliable system is one that captures costs at the point they happen, not at the end of the month when you’re trying to reconstruct what went where.
That means a job number on every purchase order, every time card, and every subcontractor invoice before it hits the books.
QuickBooks is the most common tool in the trades, and it handles job costing reasonably well if the setup is done right. The key is creating a job or project record for each contract before the first material order goes out, then tagging every transaction to that record as it happens.
Materials purchased on the company card, hours logged by each crew member, rental equipment, permits and inspection fees- all of it needs a job tag or it ends up in overhead where it distorts your margin calculations.
Field service apps like Jobber, ServiceTitan, or Housecall Pro layer on top of the accounting system and make it easier for crew members to log time and attach receipts from the job site.
The data flows back into QuickBooks so the books stay current without manual entry. The upfront cost of setting up that integration usually pays for itself within the first quarter of catching previously unallocated job costs.
Overhead includes everything your business spends that isn’t directly tied to a specific job: truck payments, insurance, your phone bill, the office rent if you have one, software subscriptions, and your own time when you’re not on a job site.
If overhead costs get lumped in with job costs, every project looks less profitable than it actually is, and your pricing decisions are based on bad data.
The standard approach is to calculate a burden rate, which is the total overhead cost per labor hour. Take your total monthly overhead, divide it by the total billable labor hours in the same period, and that gives you a dollar-per-hour overhead cost. When you’re estimating a job, you add that burden to the direct labor rate to get your true cost per hour.
Let’s look at an example. If your monthly overhead is $12,000 and your crew logs 400 billable hours per month, your overhead burden is $30 per labor hour. A job that takes 40 hours of crew time carries $1,200 in overhead costs before materials. If you’re estimating labor-only at $65 per hour and ignoring overhead, you’re underpricing the real cost of the work by a significant margin.
The IRS requires you to keep business records that support every deduction you claim, and for most electrical contractors that means holding on to records for at least three years from the date you file the return, though six years is safer if income was substantially underreported.
The deduction categories that matter most for electricians: vehicle expenses (mileage logs or actual cost records for every business vehicle), tools and equipment (receipts and depreciation schedules for anything over $2,500), materials not billed to a job (shop stock, safety gear, consumables), licensing and continuing education fees, and home office if you run the business administration from your house.
For tools and equipment, Section 179 and bonus depreciation rules let you deduct the full cost in the year of purchase rather than depreciating over several years, which can meaningfully reduce taxable income in a strong year.
The records that get electricians into trouble are vehicle logs and the personal vs. business line on supplies. Fuel and maintenance on a truck used for both personal and work trips needs a mileage log that shows business use percentage.
Without it, the IRS can disallow the entire vehicle deduction. A receipt in a shoebox doesn’t document business purpose. The log does.
Electricians with project-based revenue have uneven income throughout the year, which makes quarterly estimated taxes harder to get right than they are for a business with steady monthly sales.
A $200,000 commercial rewire that closes in October means your Q3 and Q4 income looks very different from Q1 and Q2, but the IRS still expects you to pay as you earn.
The safe harbor rule for estimated taxes lets you avoid underpayment penalties by paying at least 100% of last year’s total tax bill in four equal installments (110% of last year’s tax if your adjusted gross income was over $150,000). For 2026, the quarterly due dates are April 15, June 16, September 15, and January 15, 2027.
If you had a stronger year than expected, the safe harbor keeps you penalty-free even if you end up owing more at filing.
The practical move is setting aside 25% to 30% of every payment you receive into a dedicated tax account. Project-based income means large deposits followed by quiet months, and the tax on that large deposit is due whether or not another big job comes in before September.
Trades owners who treat tax savings as a fixed percentage of every deposit stop getting caught short.
When your job costing is accurate, your bids stop being educated guesses and start reflecting what your business actually costs to run. You can pull the last five similar projects, see exactly where the estimates were tight and where they ran over, and adjust your next bid accordingly.
That kind of historical data also matters when you’re applying for a line of credit, bidding on a larger commercial contract that requires financial statements, or deciding whether to add a truck and hire another journeyman.
Lenders want to see that revenue is real and margins are consistent. A profit-and-loss statement built on clean, job-coded books tells that story cleanly. One that mixes personal and business expenses, misses half the material costs, and can’t break out job-level profitability does not.
If you’re running electrical work in DFW and the books are a mess from a busy season, our Fort Worth bookkeeping team can get them current and set up a system that keeps them that way going forward.
That includes getting job costing configured the right way in QuickBooks so the reports you pull actually reflect what’s happening on the jobs.
Ready to get your books working for you instead of against you?
Reach out to Adam Traywick and we’ll take it from there.
Until next time!
Adam Traywick, CPA is the President and founding CPA of Adam Traywick, LLC, a Adam Traywick CPA small-business accounting firm. He has over 20 years of experience helping small business owners across home-services trades, hair salons, real estate, and insurance agencies optimize taxes, run cleaner books, and avoid the surprises that come from once-a-year accountants.
