Finance basics for a field service owner: three numbers and seven reports
Updated 16 October 2026
Finance in a field service company covers more than recording transactions. It shows what each job earned, when cash will come in and go out, how much of each technician's paid time turns into billed work, what parts and materials cost against each job, and what each truck, crew and service line contributes. Three numbers frame it. Revenue tells the owner how much work was sold. Gross profit tells the owner whether that work was priced to cover its own costs. Cash tells the owner whether the company can pay its bills and fund the next step.
Revenue, gross profit and cash
Revenue is the total billed to customers. Gross profit is revenue less the direct cost of the jobs: technician wages and payroll costs, parts, materials and subcontractors. Gross margin is gross profit divided by revenue. Cash is what sits in the bank after customers have paid and bills have gone out. The three move apart. A month of large installs can lift revenue while gross margin falls, and a month with a high gross margin can still drain cash if customers pay late.
An electrical contractor bills $1,200,000 in a year. Direct job costs are $780,000, so gross profit is $420,000 and gross margin is 35%. Over the same year, invoices owed to the company rise by $90,000 and the owner buys a $60,000 truck for cash. The company shows a profit and ends the year with less cash than it started with. The figures are an illustration.
Seven reports and when to read them
| Report | Contents | Read |
|---|---|---|
| Profit and loss | Revenue, gross margin, overhead and profit. | Monthly |
| Job cost report | Gross profit by job, project, crew or service line. | Weekly or monthly |
| Cash forecast | The cash needed for payroll, materials, taxes and debt in the weeks ahead. | Weekly |
| Receivables aging | Which customers owe money and for how many days. | Weekly |
| Technician productivity | Billable hours, the share of paid hours billed, callbacks and revenue per technician. | Weekly |
| Fleet cost | Fuel, repairs, maintenance and insurance for each truck. | Monthly |
| Service line profit and loss | Results for heating and cooling, plumbing, electrical, roofing, maintenance, installation or any other line. | Monthly |
Benjamin Franklin Plumbing reports 86 franchisees holding 373 territories in 2025. The Benjamin Franklin average is $656,635 a territory and $2,847,962 a franchisee, 4.34 times apart. The top quarter of Benjamin Franklin owners draws $746,408 from each territory and the bottom quarter $171,002. A Benjamin Franklin owner with more than one territory reads a profit and loss for each territory, because one combined statement hides which territory produces the $746,408 and which produces the $171,002.
Six common mistakes
- Tracking revenue and leaving gross profit by job untracked.
- Setting prices from a competitor's price list instead of the company's own labor, material and overhead cost.
- Leaving callbacks, warranty work and unbilled drive time out of the job cost.
- Adding trucks or technicians before the current ones are fully booked and the cash forecast can carry them.
- Letting receivables age while payroll and supplier bills fall due on time.
- Reading one combined profit and loss in place of results by service line, crew, technician or location.
Mr. Handyman's average job sells for $742. The Mr. Handyman license fee, national marketing fee and required local marketing take 17.4% of gross sales, which the Mr. Handyman page puts at $126 of every $742 job. That $126 leaves before a technician is paid or a part is bought. A Mr. Handyman owner who prices from a competitor's rate without that line in the cost underprices every job by the same amount.
Four habits to start with
First, read the core numbers every week: sales, gross margin, cash and open receivables. Second, cost every job, so each one shows its own labor, parts and margin. Third, read the receivables aging weekly and call on anything past due. Fourth, keep a rolling 13-week cash forecast and update it each Monday. These four give an owner enough to price, hire and add capacity from the books.
Precision Garage Door Service's average business completes about 4,730 jobs a year. The Precision Garage Door first quartile averages $1,531 a job and the fourth quartile $902, a gap of $629. Across 4,730 jobs, that gap is worth $2,975,170 a year. A Precision Garage Door owner who costs every job sees which job types sit near $1,531 and which near $902.
What this means for an owner
Revenue, gross profit and cash are three separate numbers, and a year can show a profit with less cash at the end. Seven reports cover the business, and four of them are read weekly. A franchised owner reads results for each territory or unit. The first habits are weekly numbers, job costing, receivables follow-up and a 13-week forecast.
Books that produce these reports
Averan keeps the books for field service companies, closes each month and produces the reports above from the closed figures. The bookkeeping service page explains the monthly work. Averan also reviews the reports with the owner each month.
Where to next
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What happens next
Reading about it and having it done are different things. Here is exactly what happens if you want the second one.
- The call takes thirty minutesYou describe the business and where the numbers are letting you down. We give you an expert view of your situation, and what we would start with. There is no pitch deck.
- We look at the fileYou give us read access to the books as they are. We come back with what is wrong, what it will take to fix, and whether the answer is bookkeeping, controller work, or something else.
- We send a written scope and a priceIt lists what we do each month, what you get, the date it lands and the fee. We agree it before anything starts, and it does not change unless you agree.
- We take over the books and close the first monthWe set up access and systems and enter the opening balances. The first close lands on the date in the scope, and every one after it does too.