Mobile Mechanic Break-Even Analysis: About $327K Monthly

Fixed costs $4.0K/mo Base monthly overhead

Contribution margin 71.5% After variable costs

Break-even revenue $5.6K/mo Monthly target

Break-even timing Month 19 Model crossover

Break-even calculator

Test whether monthly revenue covers direct costs and fixed overhead, and see how close the business is to break-even.

Lean Base Full

Monthly revenue Revenue sets the margin left after direct costs. $ Low run rate Strong month Variable expenses These are the direct costs that rise with each job, like parts, fuel, and card fees. $ Light costs Heavy costs

Money available to cover fixed costs $59,500 $85,000 revenue - $25,500 variable expenses

Margin ratio

70%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly cost base revenue has to cover before profit starts. $ Lean overhead Scaled overhead

Break-even chart Revenue Total costs

Which mobile mechanic expenses are fixed and which move with sales?

Cost classification

Break-even is only useful if each expense sits in the right bucket. Parts, fuel, and fees move with jobs, while rent, insurance, software, wages, and marketing set the monthly hurdle.

Expense	Cost	Break-Even Treatment	Common Mistake
Auto Parts & Supplies	Variable	Model at 18.0% of revenue in the first year, falling to 15.0% by the mature year.	Ignoring parts margin and overstating contribution per job.
Specialized Consumables	Variable	Model at 3.0% of revenue in the first year, falling to 2.0% by the mature year.	Bundling small shop supplies into fixed overhead.
Fuel & Vehicle Operating Costs	Variable	Model at 5.0% of revenue in the first year, improving to 4.0% by the mature year.	Treating van payments like fuel instead of separating usage from ownership.
Payment Processing Fees	Variable	Model at 2.5% of revenue in the first year, falling to 2.0% by the mature year.	Leaving card fees out of contribution margin.
Vehicle Fleet Insurance	Fixed	Hold at $1,500 per month from Month 1 through Month 60.	Spreading insurance per job and hiding the monthly break-even hurdle.
Office/Storage Rent	Fixed	Hold at $1,000 per month across the current planning range.	Assuming rent rises with each repair order.
Wages	Semi-fixed	Use staffing steps: first-year wages are $222,500 annually, or about $18,542 per month.	Forgetting owner pay and understating the real labor base.
Marketing Budget	Semi-fixed	Use the first-year budget of $10,000, or about $833 per month, then step up by year.	Treating planned spend as perfectly variable with bookings.

How does break-even move from lean to full booking levels for a mobile mechanic?

Scenario table

Break-even shifts with booking volume because fixed costs stay at about $234K a month while variable costs run at 28.5% of revenue. At higher load, the same cost base spreads across more billed work, so the cushion grows fast.

Planning view only: these scenarios are working assumptions, not guarantees, because travel time and parts availability can change real capacity.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean dispatch load	$245K	$70K	$234K	71.5%	-$58K	Still below break-even; the gap stays material.
Base break-even load	$327K	$93K	$234K	71.5%	$0K	Near break-even; any slowdown pushes losses back in.
Full booking load	$409K	$116K	$234K	71.5%	$58K	Above break-even; the cushion can absorb some slippage.

What breaks the break-even plan for a mobile mechanic?

Stress test

The plan sits close enough to break-even that a small revenue miss or cost jump can push it under. Here’s the quick math: a 10% revenue shortfall, a $2K monthly fixed-cost increase, or higher variable expense can erase the cushion fast.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$327K	$0 cushion	Any miss below plan turns into loss.
Revenue shortfall	Revenue lands 10% below break-even.	$294K	$33K gap	A small top-line miss wipes out the cushion.
Fixed-cost pressure	Fixed costs rise by $2K per month.	$355K	$28K gap	Insurance or overhead hikes push break-even up.
Margin pressure	Variable expenses rise from 28.5% to 33.5%.	$352K	$25K gap	Fuel, parts, or fees cut contribution fast.
Combined pressure	Revenue falls to $294K while variable expenses hit 33.5% and fixed costs reach $254K.	$352K	$58K gap	Long routes and low repair mix can break the model.

Will this mobile mechanic setup clear break-even before you buy the vans and hire the next tech?

Founder checklist

Don’t buy the vans or add techs until booked work, pricing, CAC, and cash all match the model. The go/no-go line here is whether Year 1 demand can support the $4.0K monthly fixed base and still survive the $453K cash trough in Month 19.

1Demand Proof$327K/mo

Confirm the mix can reach about $327K a month in Year 1 using $88 diagnostics, $150 routine maintenance, $360 repairs, and $760 fleet tickets before you buy vans or tools.

2Fixed Load$4.0K/mo

Verify the business can carry the $4.0K monthly fixed base, with $1,500 of that tied to vehicle insurance, before you lock in the overhead.

3Contribution Margin71.5% CM

Keep contribution margin, the cash left after direct variable costs, at 71.5% after parts, consumables, fuel, and payment fees, because that is what funds payroll and overhead.

4Tech Ramp3.5 FTE

Keep the current 3.5 FTE team inside a tight service radius so same-day routing works and drive time does not swallow booked hours.

5CAC Target$100 CAC

Prove customer acquisition cost stays near $100 before you raise ad spend, because the first-year marketing budget is only $10K and cheaper years come later.

6Cash Cushion$453K

Hold at least the $453K cash buffer through Month 19, because breakeven lands there and Year 1 EBITDA is still -$176K.