Contractor finance
Job Costing Calculator
Add the direct and allocated costs on a job so pricing decisions start from the real number.
Inputs
Total job cost = Labor + Materials + Subcontractors + Overhead
Use this cost before deciding markup, margin, or final sale price.
This number is not your quote amount. It is the cost base the quote needs to cover.
Results
The output shows the full cost and where the money is concentrated.
Total job cost
$15,000.00
Cost breakdown
Labor
Crew wages, burden, and job-specific labor cost.
$6,800.00
45.3%
Materials
Purchased items consumed by the work.
$4,100.00
27.3%
Subcontractors
Trade partners and outside specialty work.
$2,800.00
18.7%
Overhead
Allocated share of office, vehicles, supervision, and similar business cost.
$1,300.00
8.7%
Practical use
If a bathroom remodel carries $15,000.00in cost, the sale price must exceed that amount before the job produces any gross profit at all.
Why job costing matters
Contractors usually lose margin in one of four places: labor runs long, material pricing shifts, subcontractor cost changes, or overhead is left out. Job costing puts those numbers in one total before the quote goes out and before the profit report is trusted.
How to use this number
Before the quote
Build the cost first. Then apply the markup or margin needed for the job type, risk, and contract terms.
During the job
Update the categories as actual cost arrives. Small overruns are easier to correct when they are visible early.
After closeout
Compare estimated cost to actual cost. That record is what improves the next quote.
Contractor example
A contractor prices a small tenant improvement using labor and materials only. The job looks acceptable until the electrician invoice arrives and vehicle, supervision, and office overhead are added back in. The quote was not too low because the market was weak. It was too low because the full job cost was not measured.
Related resources
Cost clarity comes before profit protection.