Red Wiggler Worm Farm Break-Even: About $30K Monthly Sales

Fixed costs $24.1K/mo Recurring base

Contribution margin 80% After variable costs

Break-even revenue $30.1K/mo Monthly target

Break-even timing Month 26 Early Year 3

Break-even calculator

Test how monthly sales, direct costs, and overhead affect break-even for a red wiggler worm farm.

Lean Base Full

Monthly revenue Revenue is the cash coming in each month before direct costs. $ Low sales High sales Variable expenses These are direct costs that rise when you sell more worms. $ Low direct cost High direct cost

Money available to cover fixed costs $2,700 $3,375 revenue - $675 variable expenses

Margin ratio

80%

Covers fixed costs

$21,417 short

Fixed monthly costs This is the monthly overhead the business must cover either way. $ Light overhead Heavy overhead

Break-even chart Revenue Total costs

Which worm farm expenses are fixed, and which move with sales?

Cost classification

Break-even gets shaky when setup spend, payroll, and order-linked costs are mixed together. Keep monthly overhead separate from costs that rise with sales so Month 26 break-even is easier to trust.

Expense	Cost	Break-Even Treatment	Common Mistake
Climate Controlled Facility Rent	Fixed	Use $4,500 as monthly overhead across the planning range.	Tying rent to pounds sold.
Utilities	Semi-variable	Use the $1,200 baseline, then add usage as production load rises.	Treating all water and power as per-order.
Insurance	Fixed	Use $350 per month as recurring coverage.	Excluding stock risk from coverage.
Digital Marketing and SEO	Semi-fixed	Use $1,500 as planned monthly spend until a new scale step is approved.	Treating ads as unlimited variable spend.
Packaging and Breathable Containers	Variable	Model as 6.5% of first-year revenue, falling to 4.5% in the mature year.	Putting boxes and containers in overhead.
Bedding and Feedstock Processing	Variable	Model as 4.0% of first-year revenue, falling to 2.5% in the mature year.	Ignoring spoilage and prep labor.
Shipping and Logistics	Variable	Model live delivery at 7.0% of first-year revenue, falling to 6.0% in the mature year.	Netting shipping against sales without tracking margin.
Farm Operations Manager	Fixed	Include the $65,000 annual salary in operating break-even payroll.	Leaving payroll out of break-even.

How does break-even shift from a lean worm farm to a staffed full-scale setup?

Scenario table

The lean setup breaks even around $103K a month because fixed costs stay near $82K and variable costs take only 20%. The base and full cases need much more revenue, but the full model’s higher margin helps offset the bigger payroll.

Planning case only; these break-even figures are modeled assumptions, not a promise of actual results. Startup capex sits outside this operating view.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean owner-run setup	$103K	$20.6K	$82K	80%	$0	Best for testing demand with low overhead.
Base staffed commercial setup	$301K	$60.2K	$241K	80%	$0	Break-even moves up fast once payroll starts.
Full mature production setup	$501K	$77.7K	$424K	84.5%	$0	Higher margin helps, but scale still needs steady sales.

What breaks the break-even plan for this worm farm?

Stress test

This farm has a thin cushion. A 20% sales drop creates about a $48K monthly loss, and a move from 20% to 25% variable costs lifts break-even by about $20K; add $15K more fixed cost and the gap reaches roughly $100K.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change in fixed costs, 20% variable expenses, and 80% contribution margin.	$301K	$0 cushion	Any miss moves the farm below break-even.
Revenue shortfall	Sales drop 20% below the current break-even level.	$301K	$60K gap	That turns into about a $48K monthly operating loss.
Fixed-cost pressure	Monthly fixed costs rise by $15K.	$320K	$19K gap	Extra overhead pushes the break-even target higher.
Margin pressure	Variable expenses rise from 20% to 25% of sales.	$321K	$20K gap	Lower contribution margin raises the break-even bar fast.
Combined pressure	Sales drop 20%, variable expenses rise to 25%, and fixed costs add $15K.	$341K	$100K gap	That creates about a $75K monthly operating loss.

Is the worm farm ready to lock the lease, hire, and scale live delivery?

Founder checklist

If monthly demand is still below the $301K break-even target, don’t lock the lease or add the full team yet. This model doesn’t reach breakeven until Month 26, so you need proof on feedstock, live-delivery packaging, and cash runway before the fixed-cost load starts.

1Demand Target$301K/mo

Verify paid demand can hit the modeled break-even target before you sign the lease or add full-time staff.

2Feedstock Supply4 cycles

Confirm feedstock supply and bedding moisture control can stay steady across four breeding cycles a year, because bins do not fix weak inputs.

3Brood Capacity50k head

Prove the 50,000 breeding-female capacity before large orders, since Year 1 assumes 12 juveniles per cycle and 12% juvenile loss.

4Margin Mix80% CM

Check that packaging, feedstock processing, shipping, and processing fees still leave about 80% contribution margin, or the fixed burn will eat the upside.

5Launch Pack40/20/30/10

Lock live-delivery packaging and the 40% composting worms, 20% bait cups, 30% castings, and 10% starter kits mix before paid ads.

6Cash RunwayMonth 26

Hold off on the temperature-controlled van and bigger hires until cash can carry the roughly $24.1K monthly fixed load to Month 26; the model’s floor is only $1K.