Vitamin Subscription Box Break-Even: $47K Monthly Revenue Target

Fixed costs $6.8K Monthly base

Contribution margin 81% After variable costs

Break-even revenue $8.4K Monthly target

Break-even timing Month 6 Model ramp point

Break-even calculator

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

Lean Base Full

Monthly revenue Revenue is the top line that pays direct costs and overhead. $ Lower sales Higher sales Variable expenses These direct costs rise as more boxes ship. $ Lower costs Higher costs

Money available to cover fixed costs $88,200 $107,000 revenue - $18,800 variable expenses

Margin ratio

82%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly base contribution margin has to cover. $ Lean overhead Higher overhead

Break-even chart Revenue Total costs

Which expenses stay fixed and which move with subscription sales?

Cost classification

Break-even only works when product costs hit contribution margin and overhead stays below the line. Misclassifying shipping, ingredients, payroll, or marketing can make Month 6 break-even look safer than it is.

Expense	Cost	Break-Even Treatment	Common Mistake
Supplement Ingredients	Variable	Deduct from revenue before contribution margin; Year 1 rate is 8.0% of revenue.	Treating ingredients as overhead and overstating unit margin.
Packaging and Box Materials	Variable	Deduct per subscription shipment; Year 1 rate is 4.0% of revenue.	Ignoring box materials when pricing each plan.
Fulfillment Labor and Warehousing	Variable	Charge against sales volume; Year 1 rate is 3.0% of revenue.	Putting warehouse handling fully in fixed payroll.
Shipping Carrier Fees	Variable	Deduct as orders ship; Year 1 rate is 4.0% of revenue.	Using gross subscription revenue before delivery expense.
Technology Platform Hosting	Fixed	Include as monthly overhead at $2,500 from Month 1 through Month 60.	Spreading hosting per box and hiding the cash floor.
Office Rent	Fixed	Include as monthly overhead at $1,500 from Month 1 through Month 60.	Leaving rent out because sales start online.
Annual Marketing Budget	Semi-fixed	Plan as a capacity spend; Year 1 budget is $150,000, or $12,500/month on average.	Modeling CAC without the budget cap that funds it.
Salaried Team	Semi-fixed	Use step-based payroll; Year 1 staffing equals about $18,958/month from listed salaries and FTEs.	Treating hires as variable when they arrive in fixed steps.

How does break-even shift across lean, base, and full box mixes?

Scenario table

Here’s the quick math: the lean mix has the lowest price and the thinnest margin, so it takes the most boxes to cover overhead. The full mix lowers box-count pressure, but only if premium sales hold the higher fixed base.

Planning assumptions only, not a guarantee of future results.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean Year 1 mix	$47.2k	$9.0k	$38.3k	81.0%	$0	Needs about 1,086 boxes a month to cover overhead.
Base Year 3 mix	$85.5k	$13.7k	$71.8k	84.0%	$0	Needs about 1,744 boxes a month; fixed spend is the main drag.
Full Year 5 mix	$94.6k	$12.8k	$81.8k	86.5%	$0	Needs about 1,689 boxes a month, with more room from Premium sales.

What breaks the break-even plan for a vitamin subscription box?

Stress test

The plan is tight at Year 1 break-even, so a small miss in subscriber growth, CAC, or shipping and supplier costs can move it back into loss. The biggest pressure comes from lower conversion and cost creep at the same time.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change; base case holds.	$472k	$0 cushion	Break-even is reached, but there is no room for miss.
Revenue shortfall	Revenue lands 10% below the base case.	$472k	$38k gap	A small subscriber miss quickly eats the monthly cushion.
Fixed-cost pressure	Fixed costs rise 10% to $421k.	$519k	$47k gap	Overhead creep pushes break-even out faster than sales.
Margin pressure	Variable expense ratio rises from 19.0% to 24.0% of revenue.	$503k	$31k gap	Supplier and shipping inflation cut contribution fast.
Combined pressure	Revenue falls 10%, fixed costs rise 10%, and variable expense ratio rises to 24.0%.	$570k	$98k gap	Higher churn, CAC above $60, and shipping or supplier inflation stack up.

What should a vitamin subscription founder verify before funding the first big launch?

Founder checklist

Before you commit to inventory, equipment, and hires, test whether the model can absorb a $60 CAC, a roughly $25.8K monthly fixed load, and still reach break-even by Month 6. If any one of those slips, the cash trough gets wider and growth gets expensive fast.

1Demand proof2.0%

Verify traffic can convert at the 2.0% visitor-to-new-subscriber rate, because weak conversion will burn the first-year marketing budget before scale shows up.

2CAC payback$60 CAC

Check that a $60 acquisition cost can be recovered from the $43.50 blended monthly box price, or paid media will outrun first-month revenue.

3Margin check81% CM

Confirm the box mix really keeps about 81% contribution margin after ingredients, packaging, fulfillment, and shipping, because small cost drift moves break-even fast.

4Cash load$761K / $25.8K

Keep enough cash for the Month 6 trough and the roughly $25.8K monthly fixed load, because the model needs runway before it reaches break-even.

5Launch stock$15K buy

Verify supplier minimum order quantities, shelf life, and packaging before the $15K launch inventory buy, because the first box has to ship cleanly and stay sellable.

6Hire rampMonth 13

Delay the Month 13 support and warehouse hires until retention is steady, because fixed payroll rises before demand is fully proven.