Paper Bag Manufacturing Break-Even Analysis: $33K Monthly Sales

Fixed costs $25.8K/mo Non-labor base

Contribution margin 77% After unit costs

Break-even revenue $33.3K/mo Monthly target

Break-even timing Month 1 Launch month

Break-even calculator

Test whether monthly revenue covers direct costs first, then see how much fixed overhead the business can carry.

Lean Base Full

Monthly revenue Revenue is the cash pool that has to cover direct costs and fixed overhead. $ Lower sales Higher sales Variable expenses These are the direct paper, labor, and production costs that rise with output. $ Lower direct cost Higher direct cost

Money available to cover fixed costs $29,312 $37,917 revenue - $8,604 variable expenses

Margin ratio

77%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead break-even has to absorb. $ Lower overhead Higher overhead

Break-even chart Revenue Total costs

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

Cost classification

Break-even only works if unit-driven spend stays separate from monthly overhead. Misclassify labor, utilities, packaging, or waste, and Month 1 break-even can look stronger than the factory can actually support.

Expense	Cost	Break-Even Treatment	Common Mistake
Kraft Paper	Variable	Apply the $0.025 per-unit input to each Kraft Grocery Bag produced.	Using one paper rate for specialty, greaseproof, and heavy bags.
Direct Labor per bag	Variable	Include SKU-level labor, from $0.008 per Greaseproof Food Bag to $0.040 per Heavy Duty Tote.	Treating all labor as variable and double-counting salaried operators.
Outbound Packaging	Variable	Add per-unit packaging where modeled, including $0.002 per Kraft Grocery Bag.	Excluding packaging from contribution margin.
Factory Utilities	Semi-variable	Keep the base plant load in overhead, then scale usage with production volume.	Modeling utilities as fully fixed while machine hours rise.
Waste Disposal	Semi-variable	Scale disposal with output and mix, including specialty and heavy waste rates.	Ignoring higher waste from custom and heavy-duty runs.
Factory Rent	Fixed	Use $12,000 per month from Month 1 through Month 60.	Spreading rent per bag and hiding the monthly cash burden.
Equipment Maintenance Contracts	Fixed	Use $2,500 per month as recurring overhead.	Mixing fixed contracts with per-run die-cutting maintenance.
Machine Operators	Semi-fixed	Add payroll in steps as staffing rises from 4.0 FTE in the first year to 15.0 FTE in the fifth year.	Treating operator payroll like per-bag direct labor.

How does break-even shift from a lean paper bag line to a full-scale plant?

Scenario table

Lean covers overhead with a small cushion, but Year 3 payroll pushes the model below break-even. Full scale turns profitable again, so the main risk is hiring before orders are locked.

Planning figures only; actual results can move with mix, pricing, and timing.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean first-year line	$37.9k	$8.6k	$25.8k	77.3%	$3.5k	Overhead is covered, but the cushion is thin.
Base Year 3 line	$119.3k	$25.7k	$119.0k	78.5%	-$25.4k	Payroll outruns gross margin, so break-even slips.
Full-scale Year 5 line	$288.3k	$58.6k	$163.4k	79.7%	$66.3k	Scale restores profit if orders stay on plan.

What breaks the break-even plan for paper bag manufacturing?

Stress test

The current plan clears break-even, but the cushion is not wide. Higher fixed overhead hurts fastest, and margin pressure from paper, labor, or utilities can shrink the buffer fast.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$33,400	$4,500 cushion	Current run rate clears break-even, but not by much.
Revenue shortfall	First-year monthly revenue falls 10% to about $34,100.	$33,400	$700 cushion	Sales softness nearly wipes out the buffer.
Fixed-cost pressure	Fixed overhead rises 10% to $28,380 a month.	$36,700	$1,200 cushion	Fixed overhead is the fastest path to a tighter break-even.
Margin pressure	Contribution margin falls from 77.3% to 72.3%.	$35,700	$2,200 cushion	Paper, labor, or utility inflation pushes the floor up fast.
Combined pressure	Overhead rises 10% and margin falls to 72.3%.	$39,300	$1,400 gap	Combined pressure pushes the plan past the current revenue run rate.

Is the paper bag plant ready to clear break-even before you sign the lease and order inventory?

Founder checklist

Don’t sign the lease or place bulk inventory orders until the sales pipeline can clear $33.4K a month in overhead and, ideally, $99.4K once payroll is in. The first-year mix averages about $37.9K a month, so the payroll gap is the real risk.

1Sales pipeline$99.4K/mo

Confirm booked orders and serious quotes can clear the $33.4K overhead bar now and the $99.4K payroll bar before you sign the lease, hire, or buy inventory.

2Fixed load$25.8K/mo

Check that rent, utilities, insurance, accounting, software, marketing, and maintenance really stay near $25.8K a month, because that base cost hits before volume does.

3Margin mix74-82% CM

Verify the mix still leaves about 74% to 82% after materials, direct labor, and product-level factory costs, since a bigger share of totes or gift bags changes the math fast.

4Line capacity5 SKUs

Test the machine setup on kraft, gift, wine, greaseproof, and heavy-duty bags before you hire to scale, or custom work will stall production.

5Cash reserve$1.2M

Keep the $1.2M minimum cash need front and center, because capex starts in Month 1 and raw material inventory does not land until Months 5 to 6.

6Supplier launch5 inputs

Line up paper, handles, ink, adhesive, and packaging with confirmed lead times and minimum orders, then test the printing workflow before promising custom jobs.