Biometric Access Control Break Even: $197K Monthly Revenue

Fixed costs $42.5K/mo Core overhead

Contribution margin 73% After variable costs

Break-even revenue $58.5K/mo Monthly target

Break-even timing Month 1 Launch month

Break-even calculator

Test monthly revenue, variable expenses, and fixed costs against monthly break-even for a retinal scan security business.

Lean Base Full

Monthly revenue Revenue is the pool that covers direct cost and overhead. $ Low sales High sales Variable expenses These are direct costs that rise as more systems ship and install. $ Light cost Heavy cost

Money available to cover fixed costs $713,441 $829,583 revenue - $116,142 variable expenses

Margin ratio

86%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead break-even has to cover. $ Thin overhead Thick overhead

Break-even chart Revenue Total costs

Which expenses are fixed and which move with sales in a retinal scan security business?

Cost classification

Break-even only works if each expense follows the right sales driver. Treat payroll, support, or rework as fully fixed, and Month 1 break-even can look safer than it really is.

Expense	Cost	Break-Even Treatment	Common Mistake
Secure R&D facility rent	Fixed	Model at $15,000 per month across the planning range.	Spreading rent per unit and hiding the monthly cash floor.
Cybersecurity audits	Fixed	Model at $4,500 per month from Month 1 through Month 60.	Linking audit spend to unit sales instead of security requirements.
Software licensing	Fixed	Model at $5,000 per month unless licenses are renegotiated.	Dropping it below break-even because it is not a factory input.
Marketing and trade shows	Semi-fixed	Start with the $12,000 monthly plan, then step it up only when the sales motion expands.	Treating all marketing as a direct percent of revenue.
Payroll	Semi-fixed	Model in staffing steps: first year FTE starts at 8 and rises by the mature year.	Calling payroll fully fixed when support, sales, and engineering headcount scale.
Unit components	Variable	Apply per unit: $370 for the lowest-cost device up to $1,800 for the highest-cost device.	Using one blended part cost before the product mix is stable.
Warranty, support allocation, hosting, testing, and royalties	Variable	Model at 7% of revenue: 1.5% warranty, 2.0% support, 1.0% hosting, 1.5% testing, and 1.0% royalties.	Treating support and rework as fixed when they rise with installed units.
Sales commissions, logistics, and shipping	Variable	Use 7% of first-year revenue, then 5.5% by the mature year based on the provided rates.	Leaving commissions below gross margin and overstating contribution.

How does break-even change from a lean pilot to base run-rate to full deployment for this retinal scan security business?

Scenario table

Lean gets you to the line with almost no cushion. Base uses the first-year run-rate and throws off a strong profit buffer, while full adds payroll and support load but still stays well above break-even.

Planning cases only; actual results will move with mix, pricing, and support load.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean pilot rollout	$197K	$54K	$143K	73%	$0	At break-even, so one weak month can turn red.
Base first-year run-rate	$830K	$227K	$144K	73%	$444K	Healthy cushion; normal sales more than cover overhead.
Full-scale deployment	$6.16M	$1.08M	$274K	83%	$4.81M	Scale adds load, but the margin still leaves room.

What can push break-even later for this biometric security business?

Stress test

The base plan clears break-even, but it gets tight if enterprise sales slow, overhead climbs, or rework and discounting trim margin. A $25K monthly cost bump or a 5-point margin drop pushes the break-even bar higher fast.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$197K	$633K cushion	Base revenue leaves a wide cushion.
Revenue shortfall	Monthly revenue falls by the $633K cushion to the break-even floor.	$197K	$0 cushion	The cushion disappears at the floor.
Fixed-cost rise	Monthly overhead rises by $25K.	$231K	$599K cushion	Extra overhead reduces room fast.
Margin pressure	Contribution margin falls from 72.7% to 67.7%.	$212K	$618K cushion	Rework or discounting lifts the floor.
Combined pressure	Monthly revenue drops to the $197K floor, overhead adds $25K, and margin slips 5 points.	$248K	$51K gap	A soft month now misses break-even.

Can you prove break-even before you commit to inventory and hiring for a retinal scan security rollout?

Founder checklist

Do not lock inventory, hiring, or rollout spend until the pipeline, install pace, and cash floor all work together. The model clears break-even only if monthly revenue stays above about $197K and you keep the Year 1 payroll and inventory plan tight.

1Pipeline Proof$197K/mo

Confirm signed or late-stage orders clear $197K a month before you buy stock or add headcount.

2Fixed Load$143.3K/mo

Add the $42.5K monthly overhead and the Year 1 payroll base of about $100.8K a month, including cyber audit and compliance work, and check that pipeline still covers it.

3Margin Check72.7% CM

Here’s the quick math: the Year 1 mix leaves about 72.7% contribution after unit build costs, revenue-tied COGS, commissions, and shipping, so price cuts or rework can move break-even fast.

4Install Rate37/mo

Verify the install crew can hit at least 37 units a month and hold service quality, and don't add beyond the Year 1 payroll base until backlog is real.

5Cash Floor$1.071M floor

Keep the $450K inventory buy staged so total capex of about $1.42M does not break the $1.071M minimum cash floor.

6Launch SplitPaid installs

Separate demos from paid installs so you can tell if the funnel is producing billable work, not just meetings, before you scale the launch.