Arc Flash Hazard Analysis Break Even: About $66K Monthly Revenue

Fixed costs $49.0K Monthly base cost

Contribution margin 79.5% After variable costs

Break-even revenue $61.6K Monthly sales target

Break-even timing Month 3 Model break-even

Break-even calculator

Test monthly revenue, direct costs, and fixed costs to see where arc flash hazard analysis work breaks even.

Lean Base Full

Monthly revenue Revenue is the top line that covers direct costs and overhead. $ Low sales High sales Variable expenses Use the costs that rise with each project, like travel, supplies, commissions, and liability insurance. $ Lean cost Heavy cost

Money available to cover fixed costs $446,954 $549,083 revenue - $102,129 variable expenses

Margin ratio

81%

Covers fixed costs

Yes

Fixed monthly costs These are monthly costs that stay in place, even when project volume moves. $ Low overhead High overhead

Break-even chart Revenue Total costs

Which arc flash expenses are fixed, and which move with sales?

Cost classification

Break-even is only reliable if project-driven spending moves with revenue and monthly overhead stays fixed. Labels, travel, commissions, and project insurance reduce each job’s margin; rent, software, insurance, and admin set the monthly hurdle.

Expense	Cost	Break-Even Treatment	Common Mistake
Office rent and utilities	Fixed	Carry at $4,500/month from Month 1 through Month 60.	Spreading rent across projects and hiding the monthly hurdle.
Power systems software licenses	Fixed	Carry at $2,200/month as core overhead for analysis work.	Treating required software as optional job spending.
Professional errors and omissions insurance	Fixed	Carry at $1,800/month because it does not rise per project in the model.	Mixing firm-level coverage with project-specific insurance.
Base salaried payroll	Fixed	Use about $37.7k/month in the first year: $452.5k annual salaries divided by 12.	Treating salaried engineers as variable with each new job.
Label stock and printing supplies	Variable	Deduct 4.5% of revenue in the first year, falling to 3.5% by Year 5.	Treating labels as overhead instead of project-driven spending.
Field data collection travel	Variable	Deduct 8.0% of revenue in the first year, falling to 6.0% by Year 5.	Ignoring travel drag when jobs are outside the local route.
Field labor overtime	Semi-variable	Model base labor in payroll, then add overtime when distant sites stretch field hours.	Burying overtime inside fixed payroll and overstating margins.
Senior engineer capacity additions	Semi-fixed	Add in steps when workload needs another full-time engineer, not one dollar at a time.	Assuming capacity grows smoothly with revenue.

How does break-even shift from a lean launch month to a full utilization month?

Scenario table

Lean months sit close to break-even because fixed engineering payroll and software stay in place even when project volume drops. Base Year 1 run-rate covers those costs well, and full utilization widens the cushion as billings rise faster than overhead.

Planning case only: these figures are model-based assumptions, not guaranteed results.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean launch month	$61.6k	$12.6k	$49.0k	79.5%	$0.0k	At this load, project billings only cover overhead.
Base Year 1 run-rate	$202.5k	$41.5k	$49.0k	79.5%	$112.0k	Strong coverage; the month clears break-even with room to spare.
Full utilization month	$835.2k	$139.5k	$121.3k	83.3%	$574.4k	Cash cushion is wide, but direct labor and scheduling strain rise.

What breaks the break-even plan when demand slows or costs rise?

Stress test

Base case has a wide cushion, but slower demand and higher travel, software, or insurance costs can shrink it fast. The combined downside still clears break-even, yet the plan gets much less forgiving before utilization settles.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$663k	$1,767k cushion	Strong launch cushion, so ramp speed matters more than break-even.
Revenue shortfall	Revenue drops 25% from the current plan.	$663k	$856k cushion	Still above break-even, but the cushion gets cut fast.
Fixed-cost pressure	Fixed costs rise 15% to about $606k.	$762k	$1,668k cushion	Higher overhead pushes the sales bar up and narrows room for error.
Margin pressure	Variable expenses rise from 20.5% to 28.0%.	$732k	$1,698k cushion	Travel, subcontractors, software, and insurance can eat the margin edge.
Combined pressure	Revenue drops 25%, fixed costs rise 15%, and variable expenses rise to 28.0%.	$842k	$677k cushion	The model still clears break-even, but the cushion gets thin before utilization stabilizes.

What should the founder verify before locking the lease and buying field equipment for this arc flash analysis business?

Founder checklist

Test signed demand, pricing, staffing, and cash before you commit. The model reaches break-even by Month 3, but only if the first projects, field flow, and fixed-cost load match the Year 1 assumptions.

1Pipeline proofNear-signed

Verify signed or near-signed facility assessments before taking on lease and equipment costs, because the break-even path depends on real jobs landing early.

2Year 1 pricing$185/$225/$200

Confirm the Year 1 hourly rates for risk assessment, training, and consulting so quotes match the plan and don't erode margin.

3Contribution mix79.5% pre-wage

Check that Year 1 variable costs stay near 20.5% of revenue, so the work still leaves enough contribution before salaries and overhead.

4Fixed base$11.25K/mo

Confirm the monthly fixed stack for rent, software, insurance, IT, admin, and vehicle costs before you add the $139K launch equipment bill.

5Field capacity80/16/10 hrs

Lock engineer, technician, field access, and shutdown windows around the 80-hour assessment, 16-hour training, and 10-hour consulting workloads so delivery does not slip.

6Cash buffer$744K min.

Keep the Month 2 minimum cash need covered, because the model shows a $744K low point before the business is safely past launch pressure.