Protein Bar Subscription Box Break-Even: About $366K/Month

Fixed costs $10.1K/mo Monthly base spend

Contribution margin 80.5% After variable costs

Break-even revenue $12.6K/mo Cover monthly base

Break-even timing Month 1 Launch month

Break-even calculator

Test whether monthly revenue covers variable costs and fixed overhead for a protein bar subscription box.

Lean Base Full

Monthly revenue This is the sales line that funds fixed costs after direct costs. $ Low sales Peak sales Variable expenses Use shipping, packaging, payment fees, and other costs that rise with each box. $ Low cost High cost

Money available to cover fixed costs $282,462 $339,498 revenue - $57,036 variable expenses

Margin ratio

83%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead the contribution margin must cover. $ Lean team Scaled team

Break-even chart Revenue Total costs

Which expenses stay fixed and which move with sales in a protein bar subscription box?

Cost classification

Break-even is only reliable if each expense follows the right sales behavior. Here, product, packaging, shipping, and payment fees move with revenue, while platform tools, rent, and core payroll set the monthly hurdle.

Expense	Cost	Break-Even Treatment	Common Mistake
Wholesale Cost of Protein Bars	Variable	Model at 8.0% of first-year revenue, falling to 6.0% by the mature year.	Treating product spend as fixed overhead instead of revenue-linked.
Packaging Materials	Variable	Model at 3.0% of first-year revenue, improving to 2.0% by the mature year.	Leaving packaging out of contribution margin.
Shipping and Fulfillment Costs	Variable	Model at 6.0% of first-year revenue, then reduce to 4.0% as scale improves.	Treating shipping like fixed overhead.
Payment Processing Fees	Variable	Model at 2.5% of first-year revenue, easing to 2.1% by the mature year.	Forgetting fees rise with every paid subscription.
Website Hosting & E-commerce Platform	Fixed	Include as $600 per month from Month 1 through Month 60.	Scaling this with revenue when the model gives a flat monthly amount.
Subscription Management Software	Fixed	Include as $350 per month across the full planning period.	Double-counting it inside payment processing or platform fees.
Office Rent	Fixed	Include as $1,200 per month from Month 1 through Month 60.	Reducing rent when sales dip, even though the lease base remains.
Curation & Operations Manager Payroll	Semi-fixed	Model as 0.5 full-time equivalent in the first year, then 1.0 from the second year onward.	Smoothing payroll as a percent of sales instead of stepping it with staffing.

How does break-even shift from a lean launch mix to a full Year 5 mix for this subscription box?

Scenario table

Here’s the quick math: lean breaks even at about $36.6k a month, base at $97.3k, and full at $158.8k. Margin improves, but payroll and marketing also rise, so the revenue hurdle moves up.

These are planning assumptions, not guarantees; actual break-even will move with churn, ad costs, shipping, and product mix.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean launch mix	$36,636	$7,144	$29,492	80.5%	$0	About 1,163 subscribers cover fixed costs.
Base Year 3 mix	$97,296	$16,346	$80,950	83.2%	$0	About 2,820 subscribers cover fixed costs.
Full Year 5 mix	$158,750	$22,383	$136,367	85.9%	$0	About 4,178 subscribers cover fixed costs.

What breaks the break-even plan for this subscription box?

Stress test

The plan is most exposed to a lower-priced mix and Year 1 marketing spend. Here’s the quick math: baseline break-even revenue is $36,636, and a shift toward the $25 Small Box pushes the subscriber target up fast.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$36,636	$0 gap	Baseline is already tight.
Revenue shortfall	The mix shifts to Small Box at $25 instead of the $31.50 Year 1 blended price.	$36,636	$0 gap	Same dollars need about 1,465 subscribers, not 1,163.
Fixed-cost pressure	Add the $200,000 annual marketing budget to Year 1 fixed costs.	$36,636	$20,704 gap	Marketing adds a big fixed-cost hurdle.
Margin pressure	Year 1 variable expenses stay at 19.5%, versus 14.1% by Year 5.	$36,636	$0 gap	Early shipping, bars, packaging, and fees carry the risk.
Combined pressure	Small Box mix, Year 1 variable costs, and full marketing all hit together.	$36,636	$20,704 gap	Low price, higher costs, and marketing leave little room for weak conversion.

Is this protein bar subscription box ready to cover its fixed costs before you buy inventory and turn on ads?

Founder checklist

Do not commit cash to inventory, packaging, and paid acquisition until the first box still clears the Year 1 cost stack. If the margin, cash, or staffing plan needs a stretch, the break-even case is too thin.

1Margin stack19.5% VC / 80.5% CM

Verify wholesale bars stay near 8.0% of sales, packaging near 3.0%, shipping near 6.0%, and processing near 2.5%, because that is what keeps contribution margin intact.

2Demand proof2.5% / 65%

Check that website traffic converts at 2.5% to new buyers and that 65.0% of those buyers become monthly subscribers, or paid growth will not hold.

3Fixed load$3.45K/mo

Keep fixed admin, rent, insurance, and retainers near the $3,450 monthly load so box revenue does not have to cover hidden overhead.

4Hiring rampMonth 13/25/37

Stage the marketing specialist, support rep, and warehouse assistant only when order volume can carry them, or payroll will outrun demand.

5Paid media$16.7K/mo

Treat the $16,667 monthly marketing plan as staged spend, and do not scale acquisition until contribution margin already covers fixed costs.

6Cash cushion$924K

Compare launch cash to the $924,000 minimum cash need in Month 1, because inventory, packaging, and ads can drain the runway before payback shows up.