US Ethical Fashion Box Break-Even: 540 Subscribers To Cover Overhead

Fixed costs $7.7K/mo Recurring overhead

Contribution margin 80% After variable spend

Break-even revenue $48.2K/mo Monthly target

Break-even timing Month 5 Model break point

Break-even calculator

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

Lean Base Full

Monthly revenue Revenue sets the margin pool that has to cover fixed overhead. $ Low sales High sales Variable expenses These are the direct costs that rise with each box shipped. $ Low direct cost High direct cost

Money available to cover fixed costs $66,400 $83,000 revenue - $16,600 variable expenses

Margin ratio

80%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead contribution margin has to cover. $ Low overhead High overhead

Break-even chart Revenue Total costs

Which subscription box expenses stay fixed, and which move with sales?

Cost classification

Your break-even works only if recurring overhead is split from per-box spend. In the first year, variable expenses start at 20% of revenue, while fixed overhead and stepped payroll set the monthly sales target.

Expense	Cost	Break-Even Treatment	Common Mistake
Wholesale Cost of Goods	Variable	Model at 10% of revenue in the first year, falling to 8% by the mature year.	Treating supplier buys as overhead.
Eco-Friendly Packaging	Variable	Model at 2% of revenue in the first year, improving to 1.5% by the mature year.	Ignoring packaging changes by volume.
Fulfillment and Shipping Costs	Variable	Model at 6% of revenue in the first year, falling to 5% by the mature year.	Leaving shipping outside margin.
Payment Processing Fees	Variable	Model at 2% of revenue in the first year, improving to 1.5% by the mature year.	Netting fees against sales.
Office Rent	Fixed	Use $2,500 monthly from Month 1 through Month 60.	Allocating rent per subscriber.
E-commerce Platform & Hosting	Fixed	Use $1,500 monthly from Month 1 through Month 60.	Assuming it falls when boxes drop.
Payroll	Semi-fixed	Use $18,333 monthly in the first year, then step up as headcount rises.	Hiring ahead of demand.
Annual Marketing Budget	Semi-variable	Use $12,500 monthly in the first year and check spend against CAC.	Letting acquisition spend run without CAC checks.

How does break-even shift from a lean subscriber mix to the base case and a full box lineup?

Scenario table

With a 20% variable expense rate and $38,533 in fixed monthly overhead, break-even depends on how much monthly revenue each subscriber mix brings in. The Year 1 mix shows a lean case still short, a base case at the edge, and a full case with real cushion.

Scenario figures are planning assumptions, not guarantees, and should be read as a break-even screen rather than a forecast promise.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean subscriber mix	$35,680	$7,136	$38,533	80.0%	-$9,989	Still short by $9,989, so fixed overhead is not fully covered.
Base subscriber mix	$48,168	$9,634	$38,533	80.0%	$1	Essentially break-even, with Month 5 timing confirming the turn.
Full subscriber mix	$71,360	$14,272	$38,533	80.0%	$18,555	Builds about $18,555 of cushion and covers overhead with room left.

What breaks this break-even plan if subscriber growth slows or costs jump?

Stress test

The base case sits near break-even at 540 subscribers and $48,168 revenue. Watch CAC above $75, paid conversion below 30%, shipping over 6% of revenue, and inventory buys before demand proof, because each one can turn a slim cushion into a gap.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$48,168	$0 cushion	Little room before Month 5.
Revenue shortfall	Revenue runs 10% below plan.	$48,168	$3,852 gap	Sales softness burns the cushion.
Fixed cost increase	Fixed monthly costs rise 10%.	$52,020	$3,852 gap	Overhead creep pushes break-even higher.
Margin pressure	Variable expenses rise from 20% to 25%.	$50,575	$2,407 gap	Shipping and fulfillment must stay under control.
Combined pressure	Revenue runs 10% below plan, fixed costs rise 10%, and variable expenses rise to 25%.	$56,515	$9,873 gap	That mix pushes the plan past break-even.

Is this subscription box ready to buy inventory, hire, and scale ads?

Founder checklist

Don’t commit to full inventory or scaled ads until the mix supports about $89.20 a month, the funnel can reach 540 paid subscribers, and Year 1 CAC stays near $75. Keep the $95K launch build separate, and treat the $817K Month 2 cash floor as non-negotiable.

1Demand proof540 paid

Verify the 30% trial-to-paid path can produce 540 paying subscribers before you buy full inventory, because that is the base break-even floor.

2Blend price$89.20/mo

Check that the 60% Essentials, 30% Elevated, and 10% Bespoke mix really lands at about $89.20 per month, or revenue per subscriber slips below plan fast.

3Margin mix80% CM

Keep wholesale, packaging, shipping, and processing near 20% of revenue so contribution margin stays around 80% before ads and payroll.

4Fixed load$26.0K/mo

Hold the monthly fixed load near $26.0K and keep the $95K launch build separate, because step-up hiring has to wait until subscriber volume can carry payroll.

5Acquisition gate$75 CAC

Do not scale ads unless Year 1 customer acquisition cost stays near $75 and shipping, packaging, returns, and supplier terms are locked.

6Cash floor$817K

Keep an $817K cash buffer in Month 2, since the model shows the business burning cash before break-even lands in Month 5.