WiFi Network Setup Service Break-Even Analysis: $286K/Month

Fixed costs $4.5K/mo Base overhead

Contribution margin 73% After variable costs

Break-even revenue $27.2K/mo Run-rate target

Break-even timing Month 9 Model crossing

Break-even calculator

Use this calculator to test whether monthly revenue covers variable expenses and fixed monthly costs for a WiFi network setup service.

Lean Base Full

Monthly revenue Revenue is the cash that has to cover direct costs and overhead. $ Low sales High sales Variable expenses These are the direct costs that move with each job, like hardware, subcontractors, fuel, and processing fees. $ Low direct costs High direct costs

Money available to cover fixed costs $38,428 $51,583 revenue - $13,155 variable expenses

Margin ratio

74%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly cost base the business has to cover before profit starts. $ Low overhead High overhead

Break-even chart Revenue Total costs

Which wireless network setup expenses are fixed and which move with sales?

Cost classification

Break-even gets reliable when salaried capacity, fixed overhead, and job-linked costs are kept separate. Here’s the quick math: misclassifying technician payroll as purely variable can make Month 9 break-even look safer than it is.

Expense	Cost	Break-Even Treatment	Common Mistake
Lead Network Engineer and Field Technician salaries	Semi-fixed	Model as capacity added in staffing steps: $95K plus $65K in the first year, or about $13.3K per month before payroll taxes or benefits.	Treating every technician hour as variable when salaried labor is paid before jobs arrive.
Fixed operating overhead	Fixed	Use $4,450 per month for warehouse rent, scheduling software, insurance, utilities, diagnostic licenses, and administrative support during the current planning range.	Spreading fixed overhead across each job and assuming it disappears when bookings slow.
Hardware Procurement Costs	Variable	Apply 15% of first-year revenue. On $301K of revenue, that is about $45.2K for the year, or $3.8K per month on average.	Using one flat dollar amount even though hardware rises with installed jobs.
Subcontractor Labor Fees	Variable	Apply 5% of first-year revenue. On $301K of revenue, that is about $15.1K for the year, tied to overflow or specialist work.	Counting subcontractors as fixed payroll when they should scale with job volume.
Fuel and Vehicle Maintenance	Variable	Apply 4% of revenue because truck rolls, mileage, and service calls rise with booked work.	Leaving travel out of contribution margin and overstating profit per install.
Payment Processing Fees	Variable	Apply 3% of revenue because card and online payment fees move directly with collected sales.	Ignoring small transaction fees that cut margin on every paid invoice.
Online marketing spend and customer acquisition	Semi-variable	Model the $12K first-year budget as planned spend, then test volume using the $150 customer acquisition cost, meaning the budget funds about 80 acquired customers.	Treating all marketing as fixed even when spend per new customer changes with lead quality.

How does break-even shift from a lean launch to full scale for a WiFi network setup service?

Scenario table

Lean stays tight because fixed payroll eats most of the margin. As SMB retainers and on-demand support grow, the higher contribution margin gives the model more room to cover overhead and turn profit.

Planning cases only; these figures are assumptions, not guarantees.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean launch case	$25.1K	$6.8K	$209K	73%	-$59K	Below break-even; cash burn stays high.
Base scale case	$73.8K	$17.7K	$394K	76%	$112K	First clear cushion; hiring needs tight utilization.
Full scale case	$123.8K	$26.0K	$550K	79%	$343K	Strong cushion; keep technicians busy.

What pushes this WiFi setup service past break-even?

Stress test

The base plan only has a small cushion. A $251K revenue slip, a $1K overhead bump, or even a small fee increase can wipe out break-even before cash turns positive.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$286K	$15K cushion	Small cushion, so booking slip matters.
Revenue shortfall	Year 1 revenue slips to $251K.	$286K	$35K gap	Fewer bookings push the plan below break-even.
Fixed-cost pressure	Monthly overhead rises by $1K.	$300K	$1K cushion	Extra overhead almost erases the cushion.
Margin pressure	Variable costs rise by 1 point.	$286.4K	$14.6K cushion	Small fee drift still leaves a thin cushion.
Combined pressure	Revenue slips to $251K, overhead rises $1K, and variable costs rise 1 point.	$300.4K	$49.4K gap	Revenue, overhead, and fee pressure push it underwater.

What should you verify before signing the warehouse lease and buying the first van?

Founder checklist

Don’t lock in the warehouse lease, van, or first hires until the Year 1 mix supports a $627.50 weighted ticket and a Month 9 break-even path. If CAC drifts above $150 or utilization slips, the $699K cash floor and 52-month payback move the wrong way.

1Ticket Mix$628

At 60% residential, 15% SMB retainers, and 25% on-demand support, the weighted ticket is $627.50, so verify that pricing shows up in real quotes before you commit.

2Fixed Stack$19.9K/mo

The warehouse, SaaS, insurance, utilities, diagnostics, admin support, and base payroll add to about $19.9K a month, so only sign the $2,500 rent if booked work can carry the full fixed stack.

3Margin Check73% CM

Hardware at 15%, subcontractor labor at 5%, fuel at 4%, and payment fees at 3% leave about 73% contribution before fixed costs, so hold pricing and vendor terms steady.

4Calendar Fit6/4/2 hrs

Residential installs at 6 hours, SMB retainers at 4 hours, and on-demand support at 2 hours need to fit the calendar, and the 1-to-4 field technician ramp only works if booked hours grow with it.

5Cash Cushion$699K

Keep at least the $699K minimum cash through Month 29, because the model does not reach payback until Month 52.

6CAC Gate$150 CAC

Prove CAC stays near $150 before lifting the $12,000 first-year marketing budget, or you will buy growth faster than the margin can absorb it.