Busy all month and still unsure which jobs made money? A job profit calculator answers one question: after a project’s assigned costs, what’s left of the price? Trojan Digital Marketing, an Indianapolis marketing company, offers it free to service businesses. We ask for these job numbers before we suggest any ad budget. A material allowance without delivery, a labor figure without the hours required, or overhead entered twice can produce a precise looking answer to the wrong question.
Use the free job profit calculator to organize labor, materials, subcontractors and allocated overhead, and keep your internal cost sheet beside the customer estimate. Jeff Clerisier, our founder, can go over them with you; the first strategy call is free, and during business hours we aim to reply within five minutes. The following example is hypothetical, in US dollars, and excludes tax, financing and any costs not listed. It illustrates the arithmetic rather than a recommended price or typical contractor margin.
Build a cost record before choosing a margin
- Media
- Advertising spend.
- Landing page
- Work on the destination page.
- Measurement
- Tracking and review.
- Management
- Campaign planning and upkeep.
Start with the work package. Write what the team will supply, how many visits it requires, and which services another company will perform. Then give each cost a source: a supplier quote, a labor estimate based on similar work, a subcontractor proposal or a documented allocation rule. A dated source is more useful than a number remembered from an older project.
| Cost category | Hypothetical input | Amount |
|---|---|---|
| Labor | 40 hours at a loaded cost of $35 | $1,400 |
| Materials | Quoted supplies including planned delivery | $1,800 |
| Subcontractors | Approved specialist scope | $600 |
| Allocated overhead | Internal allocation for this job | $400 |
| Total assigned cost | Sum of the four categories | $4,200 |
Here, loaded labor means the hourly cost your business picks. The tool doesn’t decide which expenses belong in that rate, so write down what you included. We always ask whether payroll costs sit in labor and again in overhead, because that double count makes a job look worse than it is. If the source quote is incomplete, record the missing item before interpreting the result.
Calculate the result from the selling price
Assume the proposed selling price is $6,000. Subtracting the $4,200 assigned cost leaves $1,800. Dividing $1,800 by $6,000 gives a 30% margin on this worksheet. Dividing the same $1,800 by $4,200 gives about 42.86% markup. Both percentages describe the same project from different bases.
Use the label “estimated job profit after entered costs” when sharing the internal calculation. This result is not automatically the business’s net income. Unallocated expenses, taxes, interest, write offs and differences between expected and actual execution may change what the business ultimately retains. The calculator can only include the costs you supply.
The markup versus margin walkthrough explains the distinction with a price comparison. Check that difference before applying a familiar percentage to every estimate. A desired margin and an added markup of the same percentage produce different prices.
Work backward from a target carefully
To calculate a selling price for a target margin, divide the assigned cost by one minus the margin expressed as a decimal. At a hypothetical 30% target, $4,200 divided by 0.70 equals $6,000. The calculation answers what price fits those inputs. It does not establish whether customers will accept that price or whether the scope is competitive.
Test the quote against delivery capacity, customer expectations and the evidence behind your offer. If the market price and calculated price are far apart, investigate the work design. Can a visit be combined, a specification clarified or an optional addition separated? When an owner trims the cost input until the margin looks comfortable, we push back, because the job still costs what it costs.
Check the effect of one realistic change
Suppose the same project needs eight more labor hours at $35, adding $280. At the unchanged $6,000 selling price, assigned cost becomes $4,480 and the estimated remainder becomes $1,520. Margin falls to about 25.33%. This is a scenario, not a prediction that the work will overrun.
Changing one input at a time makes the source of movement visible. Test uncertain labor, a supplier revision and a delayed specialist separately before combining them. Save the assumptions in your project file. The estimated versus actual job cost review provides a repeatable way to learn from completed work.
Connect the calculation to the customer document
The customer needs a clear scope, price, assumptions and next decision. They usually do not need your internal overhead allocation or margin target. Use the estimate generator for that outward facing document, while keeping the detailed cost record available internally for review.
Carry the same project name and revision reference across both records. When the scope changes, revise the customer document and internal calculation together. When an invoice is due, use the invoice generator to describe the actual billing event rather than simply renaming the estimate.
Use job economics to guide marketing decisions
A campaign that fills the phone with low-margin jobs can look busy and still lose money. We compare project types before putting more ad money behind any of them. The lead cost calculator can explore acquisition spending using the contribution assumptions you choose, while keeping raw inquiries, qualified opportunities and customers separate.
For broader planning, the Small Business Administration’s cost guidance explains how fixed and variable costs enter a business review. Our worked example applies a narrower project worksheet. If the services you want to sell differ from the work your website attracts, explore home services marketing with the project evidence in hand.
Frequently asked questions
- Fit
- Explain the service scope.
- Trust
- Show supporting evidence.
- Next step
- Give a clear contact route.
Is the calculator result my actual profit?
It is a calculation from the inputs entered. Before the work is complete, the result is an estimate. Even after completion, it only reflects the costs included in the worksheet. Reconcile it with your business records before treating it as a financial result.
Should I put every business expense into each job?
No. Use a consistent allocation method for shared costs and avoid counting the same expense twice. Record that method with the worksheet. A qualified accounting professional can help determine how your operational review should relate to formal records.
What should I save with a calculation?
Save the scope revision, input sources, date, selling price and the assumptions behind labor and overhead. This gives a later review something concrete to compare. For more on pricing and follow-up, you can join our newsletter.
Questions, answered.
What should I save with a calculation?
Save the scope revision, input sources, date, selling price and the assumptions behind labor and overhead. This gives a later review something concrete to compare. For more on pricing and follow-up, you can join our newsletter.


