Broken Link Checker Break-Even Analysis: $54k MRR Target

Fixed costs $4.8K/mo Core overhead base

Contribution margin 80% After variable costs

Break-even revenue $6.0K/mo Revenue cover point

Break-even timing Month 6 Forecast break point

Break-even calculator

Use this calculator to test monthly revenue, variable expenses, and fixed costs against break-even.

Lean Base Full

Monthly revenue Revenue sets the pool that covers direct costs and overhead. $ Lower sales Higher sales Variable expenses These rise with usage, like cloud crawling, support, fees, and commissions. $ Lower costs Higher costs

Money available to cover fixed costs $60,000 $75,000 revenue - $15,000 variable expenses

Margin ratio

80%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly cost base that margin has to cover. $ Lower overhead Higher overhead

Break-even chart Revenue Total costs

Which expenses stay fixed and which move with sales for this website scanning tool?

Cost classification

Break-even is modeled at Month 6, but it only holds if revenue-linked fees stay variable and committed payroll and tools stay fixed or semi-fixed. Misclassifying crawl usage or card fees as fixed will overstate margin as customers scale.

Expense	Cost	Break-Even Treatment	Common Mistake
Cloud Infrastructure and Crawling Bandwidth	Variable	Treat as revenue-linked delivery spend: 8.0% of revenue in the first year, falling to 6.0% by Year 5 as scale improves.	Putting usage-based crawl spend into fixed overhead.
Customer Support Outsourcing	Variable	Model as support load tied to paying customers: 4.0% of revenue in the first year, dropping to 2.0% by Year 5.	Assuming support stays flat while customer count rises.
Payment Processing Fees	Variable	Apply to collected subscription revenue: 3.0% in the first year and 2.8% by Year 5.	Treating card fees as fixed software overhead.
Affiliate and Partner Commissions	Variable	Charge against revenue from partner-led sales: 5.0% in the first year, rising to 8.0% by Year 5.	Forgetting that partner mix can lower contribution margin.
Cloud Security and Monitoring Tools	Fixed	Include as $1,200 per month from Month 1 through Month 60 within the normal planning range.	Scaling it with revenue when the contract is monthly.
Professional Services Legal and Accounting	Fixed	Include as $2,000 per month from Month 1 through Month 60 for recurring compliance and advisory work.	Dropping it after launch even though it recurs monthly.
Payroll Roles	Semi-fixed	Model headcount in steps: recurring salaries move from $345,000 in the first year to $840,000 by Year 5 as engineering, marketing, and customer success expand.	Spreading payroll as a constant percent of revenue.
Annual Marketing Budget	Semi-fixed	Budget rises in planned steps from $120,000 in the first year to $450,000 by Year 5, while CAC improves from $45 to $35.	Treating the full budget as purely variable acquisition spend.

How does break-even shift from lean to base to full growth?

Scenario table

Break-even moves with plan mix, crawl load, and fixed spend. Lean only covers overhead, base adds a real cushion, and full growth works if revenue rises faster than support and infrastructure.

Planning assumptions only; actual break-even can move with traffic, mix, and spend.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean launch control	$54.4k	$10.9k	$43.6k	80%	$0	It sits at break-even, so small misses turn it negative.
Base funded ramp	$75.1k	$15.0k	$43.6k	80%	$16.5k	It clears break-even by about $16.5k a month.
Full growth scale-up	$163.3k	$32.7k	$54.0k	80%	$76.6k	It stays well above break-even if support and crawl spend keep pace.

What breaks the break-even plan if monthly recurring revenue slows or costs rise?

Stress test

Year 1 average MRR of $75,083 sits above the $54,438 break-even line by about $20,645, or about $16,517 a month after variable costs and fixed spend. The plan gets fragile fast if MRR slips or fixed spend rises.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$54,438	$20,645 cushion	Positive headroom, but not wide.
Revenue shortfall	Year 1 average MRR falls 27.5% to the break-even line.	$54,438	$0 gap	Any deeper slowdown pushes it below break-even.
Fixed cost	Fixed spend rises by $10,000 per month.	$66,938	$8,145 cushion	Break-even moves up fast, but Year 1 still covers it.
Margin pressure	Contribution margin falls 1 point, from 80% to 79%.	$55,127	$19,956 cushion	Small crawl-cost creep raises the hurdle.
Combined pressure	Year 1 average MRR falls 27.5% and fixed spend adds $10,000 per month.	$66,938	$12,500 gap	Lower revenue no longer covers the higher fixed load.

What should you verify before you hire, scale ads, and add server capacity for this broken link checker tool?

Founder checklist

Check the $61 blended price, 5.0% trial rate, and $45 CAC before you scale. If the $815K cash floor, 20.0% variable cost load, or Month 6 break-even path slips, hold the line.

1Blended Price$61/mo

Verify the 60% Starter, 30% Pro, and 10% Agency mix still averages $61 per paid user, because that price drives Year 1 revenue.

2Trial Funnel5.0% / 12.0%

Confirm 5.0% of visitors start a trial and 12.0% of trials convert, or the paid base will miss the Month 6 break-even path.

3CAC Cap$45 CAC

Keep customer acquisition near $45 per user before you lift the $120,000 Year 1 marketing cap, because paid growth gets expensive fast.

4Contribution80.0%

Hold variable costs at 20.0% of revenue or less so contribution stays near 80.0% and can cover the fixed burn.

5Fixed Load$33.6K/mo

Check that core payroll plus fixed overhead stay near $33.6K per month, because that is the load the revenue plan has to carry.

6Cash Floor$815K

Keep at least $815,000 of cash in Month 2, and do not add the Customer Success Lead in Month 13 until billing, uptime alerts, onboarding, failed-payment, and cancellation tracking all work.