Sustainable Paper Break-Even Analysis: $109K Monthly Revenue

Fixed costs $39.5K/mo Monthly overhead

Contribution margin 86.6% After variable costs

Break-even revenue $45.6K/mo Sales to cover overhead

Break-even timing Month 1 Launch month

Break-even calculator

Use this calculator to test monthly revenue, variable expenses, and fixed costs against break-even for a sustainable paper business.

Lean Base Full

Monthly revenue Revenue is the pool that pays direct costs and fixed overhead. $ Low sales High sales Variable expenses These rise with output and sales: mill costs, logistics, and commissions. $ Low direct High direct

Money available to cover fixed costs $1,109,343 $1,222,000 revenue - $112,657 variable expenses

Margin ratio

91%

Covers fixed costs

Yes

Fixed monthly costs These are monthly overhead items that must be covered each month. $ Low overhead High overhead

Break-even chart Revenue Total costs

Which paper manufacturing expenses are fixed and which move with sales?

Cost classification

Break-even is reliable only when fixed overhead is split from spend that rises with units or revenue. Misclassifying direct materials, commissions, or step-up staffing can make Month 1 break-even look safer than it is.

Expense	Cost	Break-Even Treatment	Common Mistake
Factory Rent & Utilities	Fixed	Include $25,000 per month in fixed overhead for the planning range.	Spreading rent across units and hiding the true monthly hurdle.
Administrative Office Rent	Fixed	Add $5,000 per month to fixed overhead before calculating required contribution.	Treating office rent as tied to order volume.
Recycled Fiber	Variable	Apply the per-unit input amount by product, such as $1.00 for office copy paper and $4.00 for kraft packaging rolls.	Using one blended material rate across all paper products.
Packaging Materials	Variable	Model as per-unit COGS, from $0.05 for eco notebooks to $1.00 for kraft packaging rolls.	Leaving packaging in overhead instead of unit economics.
Sales Commissions	Variable	Deduct 2.5% of first-year revenue when calculating contribution margin.	Putting commissions in payroll and overstating gross contribution.
Energy for Production	Semi-variable	Track the usage-linked portion at 1.0% of revenue and review it as production volume scales.	Combining plant energy with fixed factory rent and utilities.
Production Staff	Semi-fixed	Step staffing from 4 FTE in the first year to 12 FTE in the fifth year as capacity grows.	Treating all mill labor as fixed when direct mill labor is included per unit.

How does break-even shift from launch-scale to fuller-scale paper production?

Scenario table

Break-even improves as revenue scales faster than unit costs, but payroll and plant overhead still rise. The fuller-scale case has the widest cushion, even with heavier fixed commitments.

Planning assumptions only, so the figures show modeled break-even behavior and not a guarantee of future results.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Launch-scale paper mix	$587.5k	$945.3k	$94.1k	86.6%	$4.87m	About $109k monthly revenue covers fixed overhead.
Expanded paper mix	$898.9k	$1.39m	$114.5k	87.1%	$7.85m	About $131k monthly revenue still clears break-even.
Full-scale paper mix	$1.90m	$2.52m	$144.5k	89.0%	$18.21m	About $162k monthly revenue gives the strongest cushion.

What breaks the break-even plan for this paper business?

Stress test

At a $587,500 monthly revenue run rate, the base case still has a wide cushion. The plan gets tight if revenue slips, freight spikes, fiber shortages, or new headcount lands before volume catches up.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$108,600	$478,900 cushion	Healthy cushion if sales hold.
Revenue shortfall	Revenue is 10% below plan.	$108,600	$420,100 cushion	A 10% miss still clears break-even.
Fixed-cost pressure	Add the Year 2 marketing manager and logistics coordinator.	$122,600	$464,900 cushion	Extra payroll trims cushion but not safety.
Margin pressure	Logistics and sales commissions rise by 5.5 percentage points of revenue.	$116,000	$471,500 cushion	Margin stays strong, but pricing discipline matters.
Combined pressure	Revenue is 10% below plan, fixed costs rise, and margin drops.	$131,000	$397,800 cushion	Late payments or freight spikes can squeeze cash.

Is this sustainable paper launch ready to clear break-even before you buy the mill upgrade and hire up?

Founder checklist

Don’t commit to the big spend until signed demand clears about $109K a month and the first-year unit plan still fits the cost model. With an 86.6% contribution margin, small misses in pricing, collections, or throughput can erase the cushion fast.

1Signed demand$109K/mo

Verify signed orders or committed volume can reach about $109K a month before you lock the launch spend.

2Fixed load$94.1K/mo

Check that rent, software, insurance, and Year 1 salaries stay near $94.1K a month, or break-even moves out.

3Margin gate86.6% CM

Hold the contribution margin near 86.6% and only keep the $3K marketing retainer if channel costs still support it.

4Capex gate$850K

Lock recycled fiber and paper stock pricing before you commit the $500K mill upgrade and $350K recycling machinery orders.

5Capacity ramp4 FTE

Test Year 1 output against 4 production FTE first, because hiring past that point only works if throughput already holds.

6Cash reserve$1.166M

Keep at least $1.166M of Month 1 cash ready so capex, ramp-up, and slow collections do not stall the launch.