Job Costing Done Right

Most contractors know their overall margin but have no idea which jobs earned it. Accurate job costing changes that. It turns every completed job into a lesson about pricing, productivity, and where your money really goes.

Capture Every Direct Cost

A job's true cost is more than materials and the hours on the invoice. To cost a job honestly, you have to capture everything that job consumed:

• Direct labor, including payroll taxes and burden — not just wages.
• Materials and equipment, tied to the specific job.
• Subcontractor costs.
• Drive time, fuel, and equipment usage.

Understand Labor Burden

The number that trips up most contractors is the true cost of an hour of labor. A technician paid $30 an hour costs far more once you add payroll taxes, insurance, benefits, and non-billable time. Costing jobs at the raw wage instead of the fully burdened rate makes every job look more profitable than it is.

Compare Estimated to Actual

Job costing earns its keep when you close the loop. Put the estimated cost next to the actual cost on every job and patterns emerge fast: a job type you consistently underbid, a crew that runs over, a material you keep underestimating. Those patterns are where margin is won back.

Feed the Lessons Back Into Pricing

The whole point is better decisions. When job costing shows a category of work consistently misses its target, you have two clear choices: raise the price or fix the execution. Either way, you're acting on facts instead of hoping the averages work out.

Make It a Routine, Not a Project

Job costing only works when it's consistent. Cost every job the same way, review the results on a schedule, and the practice compounds. Over a year, those small corrections add up to a meaningfully more profitable business.