Cloth Diaper Subscription Break-Even Analysis: $728K Monthly Revenue

Break-Even Metric Cards

Fixed costs $11.4K/mo Before payroll

Contribution margin 71% After variable costs

Break-even revenue $72.8K/mo Year 1 base

Break-even timing Month 10 Model break-even

Break-Even Calculator

Break-even calculator

Test whether monthly revenue clears the variable costs of laundering, delivery, and software, plus the fixed cost base needed to run the service.

Lean Base Full

Monthly revenue Revenue sets the margin left to cover fixed costs each month. $ Lower sales Higher sales Variable expenses These are the direct costs that rise with each month of service. $ Lower costs Higher costs

Money available to cover fixed costs $82,900 $114,200 revenue - $31,300 variable expenses

Margin ratio

73%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead contribution margin must cover. $ Lower overhead Higher overhead

Break-even chart Revenue Total costs

Which expenses are fixed, and which move with sales in a cloth diaper subscription?

Cost classification

Break-even gets unreliable when route, laundry, and payment costs are treated like overhead. In the first operating year, variable fulfillment costs alone run 21.0% of revenue before software, ads, and card fees.

Expense	Cost	Break-Even Treatment	Common Mistake
Diaper Inventory & Replacement	Variable	Model at 8.0% of revenue in the first year, falling to 6.0% by the mature year.	Treating replenishment as one-time inventory only.
Laundering Supplies & Utilities	Variable	Model at 6.0% of revenue in the first year, falling to 4.0% as wash volume improves.	Burying water, detergent, and power use in rent.
Delivery Logistics	Variable	Model at 7.0% of revenue in the first year, falling to 5.0% with better route density.	Ignoring fuel and maintenance by route.
Subscription Management Software	Variable	Model at 1.5% of revenue in the first year, then down to 1.0% by the mature year.	Calling all software fixed.
Online Advertising Spend	Variable	Model at 5.0% of revenue in the first year, plus track CAC separately at $120 per customer.	Mixing CAC with margin without tracking payback.
Payment Processing Fees	Variable	Model at 2.0% of revenue in the first year, then 1.8% in the mature year.	Excluding card fees from contribution margin.
Facility Rent, Office Rent, Insurance, Admin Software, and Hosting	Fixed	Carry $11,350 per month before wages across the planning range.	Spreading fixed overhead across customers too early.
Payroll	Semi-fixed	Model $40,000 per month in the first year, then step up as drivers and laundry staff are added.	Hiring ahead of route density.

How does break-even shift from lean to full operations for a cloth diaper subscription?

Scenario table

Lean breaks even at the lowest revenue because payroll is lighter, while the full case gets a better margin but needs more sales to cover added staff. Route density helps, but labor still pushes the threshold up.

Planning assumptions only; real break-even will move with churn, delivery density, and hiring pace.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean Year 1 launch mix	$72,837	$21,487	$51,350	70.5%	$0	Lowest cash need; about 669 households cover fixed cost.
Base Year 3 operating mix	$110,992	$27,975	$83,017	74.8%	$0	Middle case; about 954 households keep the model at break-even.
Full Year 5 scaled mix	$172,688	$35,921	$136,767	79.2%	$0	Best margin, but the highest threshold at about 1,414 households.

What pushes this cloth diaper subscription below break-even?

Stress test

The model has no cushion at the base case, so any revenue slip hits break-even right away. Route gaps, failed payments, higher replacement rates, and overtime are the main break points.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$72,837	$0 gap	No cushion; any miss turns negative.
Revenue shortfall	Monthly revenue falls by $10,000.	$72,837	$10,000 gap	A 10k miss cuts about $7,050 of contribution.
Fixed-cost pressure	Monthly fixed overhead rises by $1,000.	$74,255	$1,418 gap	Extra overhead pushes break-even up fast.
Margin pressure	Variable expenses rise by 1 percentage point.	$73,886	$1,049 gap	Route waste, overtime, or replacements erode margin.
Combined pressure	Revenue falls $10,000 and overhead rises $1,000.	$75,324	$12,487 gap	Small misses stack and break the plan fast.

What should a cloth diaper subscription founder verify before locking in equipment, vehicles, and inventory?

Founder checklist

Do not commit to the laundry lease, vehicles, or a full build-out until route density, billing, and wash throughput all support Month 10 break-even. The model still needs a $113K cash floor in Month 16, so the launch has to be staged.

1CAC Payback$120 vs $109/mo

Compare Year 1 customer acquisition cost against $109 in monthly revenue per active household, and only scale paid ads once the website, billing, failed-payment, and support flow can turn that spend into retained households.

2Unit Margin71% CM

Year 1 mix leaves about 71% after 21% in COGS and 8.5% in variable costs, so watch wash runs, delivery miles, and refunds before they push break-even out.

3Route Density$100K fleet

Verify zip-by-zip order density can support the $100K vehicle fleet before you add routes, because thin routes burn fuel and driver time faster than they add revenue.

4Laundry Capacity$150K equip.

Test wash, dry, staffing, and turnaround flow before the $150K equipment buy and the $60K build-out, because laundry capacity sets how many families you can serve.

5Stock Policy$80K + $30K

Lock sanitation and replacement-stock rules before the $80K initial inventory and $30K backup buy, so you do not trap cash in diapers that need constant rotation.

6Cash Floor$113K floor

Keep the $113K minimum cash need in view; the model bottoms at Month 16, and fixed load runs about $51.4K a month before variable costs.