A/B Testing Software Break-Even Analysis: About $62k MRR

Fixed costs $50.0K/mo Base overhead

Contribution margin 81% After variable costs

Break-even revenue $61.7K/mo Monthly target

Break-even timing Month 5 Model ramp point

Break-even calculator

Use this to test how monthly revenue, direct costs, and overhead set break-even for an A/B testing software business.

Lean Base Full

Monthly revenue Revenue is the top line that funds margin for overhead. $ Lower sales Higher sales Variable expenses These are direct costs that rise with revenue, like hosting, support, fees, and commissions. $ Lower costs Higher costs

Money available to cover fixed costs $830,517 $1,004,250 revenue - $173,733 variable expenses

Margin ratio

83%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead base that contribution margin must cover. $ Lean base Heavy base

Break-even chart Revenue Total costs

Which expenses are fixed, variable, semi-variable, or semi-fixed for an A/B testing software business?

Cost classification

This model reaches break-even in Month 5, but only if fixed, variable, semi-variable, and semi-fixed expenses are split cleanly. Misclassifying hosting, payroll, or marketing can make required revenue look lower than it is.

Expense	Cost	Break-Even Treatment	Common Mistake
Office Rent and Utilities	Fixed	Include $4,500 per month in fixed overhead before calculating break-even revenue.	Spreading rent across users and making it look volume-driven.
Cybersecurity Insurance	Fixed	Include $800 per month as a recurring baseline operating expense.	Dropping it from break-even because it is not tied to each sale.
Legal and Audit Retainer	Fixed	Include $2,000 per month in the fixed expense base.	Treating the retainer like a one-time compliance item.
Payroll	Semi-fixed	Use about $30,000 per month in the first year, then step it up as planned roles are added.	Modeling payroll as a smooth percentage of revenue.
Planned Marketing	Semi-fixed	Use the $10,000 monthly first-year plan as a committed spend, not as a pure sales commission.	Cutting marketing to zero in low-revenue months while still assuming customer growth.
Payment Processing Fees	Variable	Apply 3.0% of revenue in the first year, with later rates based on the forecast.	Putting processing fees in overhead instead of reducing contribution margin.
Referral and Affiliate Commissions	Variable	Apply 5.0% of revenue in the first year, rising with the forecasted commission rate.	Holding commissions flat while paid customer volume grows.
Cloud Hosting and Data Processing	Semi-variable	Use 8.0% of revenue in the first year, then lower the rate as scale improves.	Treating usage-heavy hosting like pure overhead.

How does break-even change from a lean launch case to a full-scale case for this A/B testing software?

Scenario table

Lean sits near break-even, the Year 1 base case has a modest cushion, and the Year 5 full case has a much wider one. Higher revenue and a better mix carry the shift; fixed costs still rise, so timing matters.

Planning assumptions only; actual results will move with traffic, conversion, and cost mix.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean launch case	$49.4k	$9.4k	$40.0k	81.0%	$0	At roughly break-even, so any drop hurts fast.
Base first-year case	$94.5k	$18.0k	$54.6k	81.0%	$21.9k	Above break-even with a workable first-year cushion.
Full scale case	$1.93M	$324.3k	$110.1k	83.2%	$1.50M	Strong cushion, but scaling costs can rise quickly.

What breaks the break-even plan for this A/B testing software tool?

Stress test

The plan is profitable at Year 1 scale, but the cushion is not huge. A small conversion miss, a 2-point margin squeeze, or hiring the sales and service team early can push break-even above plan revenue.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$810,000	$324,000 cushion	81% contribution still covers fixed costs.
Revenue shortfall	Trial-to-paid conversion falls from 12.0% to 10.0% in Year 1.	$810,000	$135,000 cushion	A smaller close rate cuts the cushion fast.
Fixed-cost pressure	Bring the Customer Success Lead and Enterprise Sales Representative into Year 1.	$1,008,000	$126,000 cushion	Early hiring eats most of the slack.
Margin pressure	Cloud hosting rises to 9.0% and customer support tools rise to 4.0% of revenue.	$830,000	$304,000 cushion	A 2-point margin hit lifts break-even fast.
Combined pressure	Trial-to-paid drops to 10.0%, cloud hosting rises to 9.0%, support tools rise to 4.0%, and both hires move into Year 1.	$1,033,000	$88,000 gap	Lower conversion and higher cost can flip profit into a gap.

Is this A/B testing software ready to scale before Month 5 break-even is proven?

Founder checklist

If paid traffic can hit a 3.5% visitor-to-trial rate, CAC stays near $150, and trial-to-paid holds at 12.0%, the Month 5 break-even path is credible. Keep marketing near $10K a month and do not add headcount until those numbers hold.

1Trial flow3.5% / $150

Test whether paid traffic turns into trials at 3.5% while CAC stays near $150, or the ad budget will not support scale.

2Paid close12.0%

Confirm trial users convert to paid at 12.0% across the $99, $249, and $899 tiers, because break-even depends on closing trials, not just getting signups.

3Unit margin81%

Hold contribution margin near 81% after 8% hosting, 3% support tools, 3% payment fees, and 5% referral commissions, or the Month 5 path slips.

4Base burn$40K/mo

Verify the core run rate is about $40K a month from $10K of fixed overhead plus $30K of Year 1 payroll, so growth does not outrun the base load.

5Hiring gateMonth 13 / 25

Hold customer success until Month 13 and enterprise sales until Month 25, because pulling them forward adds fixed burn before the model is ready.

6Cash floor$814K

Keep at least $814K of cash through Month 2, since that is the model's minimum cash point and the plan cannot absorb slippage before revenue builds.