Locksmith Service Break-Even Analysis: About $27k Monthly Revenue

Fixed costs $13.5K/mo Launch overhead base

Contribution margin 59% After variable costs

Break-even revenue $22.9K/mo Monthly target

Break-even timing Month 8 Model payback point

Break-even calculator

Test monthly revenue, variable expenses, and fixed costs against break-even for a locksmith service.

Lean Base Full

Monthly revenue Revenue is the cash that has to cover direct and fixed costs. $ Low sales High sales Variable expenses Direct costs like hardware, fuel, ads, and commissions move with sales. $ Low costs High costs

Money available to cover fixed costs $56,400 $89,500 revenue - $33,100 variable expenses

Margin ratio

63%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead the business must cover before profit. $ Light overhead Heavy overhead

Break-even chart Revenue Total costs

Which expenses are fixed and which move with sales for this mobile lock and key business?

Cost classification

Break-even is only useful if each expense behaves the right way in the model. Fixed payroll and shop costs set the monthly hurdle, while parts, fuel, marketing, and commissions rise with revenue.

Expense	Cost	Break-Even Treatment	Common Mistake
Office and Workshop Rent	Fixed	Include $3,500 per month in the fixed overhead hurdle.	Ignore shop space when mobile jobs drive revenue.
Business Insurance	Fixed	Include $1,200 per month before calculating break-even revenue.	Treat insurance as if it changes per job.
Owner / Master Locksmith payroll	Fixed	Include the $75,000 annual salary, or $6,250 per month.	Exclude owner pay, then overstate true profit.
Hardware and Lock Inventory	Variable	Model at 18% of first operating year revenue.	Price jobs without a parts load.
Vehicle Fuel and Maintenance	Variable	Model at 8% of first operating year revenue.	Miss the drag from long service routes.
Marketing and Lead Generation	Variable	Model at 12% of first operating year revenue, with $24,000 annual budget context.	Assume every lead is free.
Commission and Incentives	Variable	Model at 3% of first operating year revenue.	Exclude technician incentives from job economics.
Added technician roles	Semi-fixed	Raise the break-even line when staffing steps up in Month 7, Month 13, and Month 25.	Add headcount before job volume can cover it.

How does break-even shift from a lean mobile locksmith setup to a base first-year plan and then to a full coverage team?

Scenario table

Each step up adds payroll and raises fixed costs, so break-even climbs unless calls rise faster than overhead. The lean plan clears break-even near $229k a month; the expanded plan needs about $393k.

Planning assumptions only; real break-even will move with call mix, pricing, and labor use.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean mobile startup	$229k	$94k	$135k	59%	$0	Lean overhead helps, but cushion is thin.
Base first-year plan	$268k	$110k	$158k	59%	$0	Steady call flow is needed to avoid slipping below break-even.
Expanded coverage plan	$393k	$153k	$240k	61%	$0	More vans and labor only work if demand scales first.

What breaks the break-even plan for this locksmith service?

Stress test

Base break-even sits near $268k a month, with $158k fixed overhead and a 59% contribution margin. A 10% revenue dip, a 5-point margin squeeze, or 10% higher fixed costs can push the floor higher fast.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change; fixed overhead stays at $158k a month.	$268k/month	$0 gap	No cushion if monthly demand slips.
Revenue shortfall	Monthly revenue falls 10% to about $241k.	$268k/month	$16k gap	Weak lead flow or missed calls turns cash negative.
Fixed-cost increase	Fixed overhead rises 10% to about $174k a month.	$294k/month	$16k gap	Higher rent, payroll, or insurance pushes the floor up.
Margin pressure	Variable expenses rise 5 points, cutting margin to 54%.	$292k/month	$13k gap	Fuel, parts, or ad spend squeeze each job.
Combined pressure	Revenue falls 10%, fixed overhead rises 10%, and margin falls to 54%.	$322k/month	$44k gap	Fewer emergency calls and weak ad conversion can break the model.

What should you verify before you lock in the lease, van fleet, and first hires for a locksmith service?

Founder checklist

Don’t harden the lease, van fleet, or hires until demand, margin, and cash all clear the model. For this locksmith plan, the real test is whether break-even still lands by Month 8 while the $230k startup build stays separate from operating payback.

1Demand proof238 jobs/mo

Verify you can reach about $268k in monthly revenue at a $112 average ticket before you sign a lease or buy the second van.

2Fixed loadMonth 8

Verify the plan still breaks even by Month 8 after the $230k startup spending and fixed overhead harden; if it misses, the lease is too early.

3Margin mix59% CM

Verify pricing and service mix keep contribution margin, what’s left after direct job costs and variable selling costs, near 59% so extra jobs actually help.

4Route density8% fuel

Verify service areas are tight enough to keep fuel and maintenance near the 8% Year 1 assumption, and keep inventory controls tight before installation and smart lock work.

5Senior hireMonth 7

Treat the Month 7 senior technician hire as a break-even step-up only if booked work can absorb it, and test after-hours response before you promise 24/7 coverage.

6Cash cushion$708K

Verify you have about $708k in cash reserve, because Year 1 EBITDA is about -$2k and owner draws should stay outside break-even math.