Dump Truck Rental Break-Even Analysis: Month 6 Profit Threshold

Fixed costs $47.1K/mo Core overhead base

Contribution margin 90.5% After variable costs

Break-even revenue $52.0K/mo Monthly revenue target

Break-even timing Month 6 Model break point

Break-even calculator

Compare monthly revenue, variable expenses, and fixed costs to see where this dump truck rental business breaks even.

Lean Base Full

Monthly revenue Revenue is the top line that creates margin for overhead. $ Slow month Peak month Variable expenses These are direct costs that rise as rental volume grows. $ Low costs High costs

Money available to cover fixed costs $100,000 $250,000 revenue - $150,000 variable expenses

Margin ratio

40%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead margin must cover before profit starts. $ Lean overhead Heavy overhead

Break-even chart Revenue Total costs

Which expenses are fixed and which move with sales in a dump truck rental break-even model?

Cost classification

Break-even gets noisy when fixed overhead, transaction fees, and scale-up spending are blended together. Classify each line by behavior first, so contribution margin and Month 6 break-even can be tested cleanly.

Expense	Cost	Break-Even Treatment	Common Mistake
Office rent	Fixed	Include $3,500 per month in fixed overhead from Month 1 through Month 60.	Treating rent as order-linked because more jobs may require more space later.
Legal and compliance services	Fixed	Include $1,500 per month below contribution margin as recurring overhead.	Putting compliance inside variable margin and overstating per-order profitability.
Accounting and audit services	Fixed	Include $1,000 per month as fixed G&A for the operating break-even model.	Dropping it from break-even because it is not tied to dispatch activity.
Fixed payroll: CEO, CTO, and software engineer	Fixed	Use $460,000 per year, or about $38,333 per month, in first-year fixed payroll.	Using headcount as variable labor when these roles are planned as salaried FTEs.
Payment processing fees	Variable	Reduce contribution margin by 2.5% of revenue in the first year.	Modeling processing as a flat vendor bill instead of a sales-linked fee.
Server Hosting & CDN	Variable	Reduce contribution margin by 2.0% of revenue in the first year.	Assuming hosting is fully fixed when the model ties it to revenue volume.
Customer support per transaction	Variable	Reduce contribution margin by 3.0% of revenue in the first year.	Budgeting support only as salary and missing transaction-level support load.
Annual marketing budget	Semi-fixed	Spread first-year seller and buyer marketing of $130,000 into about $10,833 per month, then step it up by plan year.	Calling all marketing variable CAC and ignoring planned budget steps.

How does break-even change from a lean launch to base and full scale in dump truck rental?

Scenario table

Lean stays below break-even because the fixed base is too heavy for light bookings. Base is roughly Month 6 break-even, and full scale is much safer as seller and buyer acquisition cost falls and contribution margin widens.

Planning case only; direct fleet ownership economics, capex, and financing are outside this table.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean launch case	$850k	$808k	$47k	5.0%	-$5k	Still below break-even; volume needs to rise.
Year 1 base case	$1.25M	$1.19M	$47k	5.0%	$15k	Break-even lands around Month 6, with a thin cushion.
Year 5 scale case	$11.78M	$8.83M	$104k	25.0%	$2.84M	Clear cushion; lower acquisition cost makes scale safer.

What pushes the Month 6 break-even plan for dump truck rental off track?

Stress test

Here’s the quick math: the plan only works if monthly revenue stays near $640k. Softer bookings, higher payroll and compliance, or rising support and insurance costs can move break-even past Month 6 and put the $633k cash floor at risk.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$640k/month	$0 gap	Month 6 is the line; any slip burns cash.
Revenue shortfall	Booked revenue falls 10% from softer demand and weaker commission income.	$711k/month	$71k gap	Slower CAC payback and weak repeat orders show up fast.
Fixed-cost pressure	Payroll, office, legal, compliance, and marketing spend rise 8%.	$691k/month	$51k gap	Overhead growth eats the cushion before volume does.
Margin pressure	Payment processing, hosting, support, and insurance admin push variable costs up 5 points.	$677k/month	$37k gap	Support and insurance costs rising faster than revenue squeeze EBITDA.
Combined pressure	Bookings soften 10%, fixed spend rises 8%, and variable costs rise 5 points.	$732k/month	$92k gap	This can push break-even past Month 6 and tighten cash fast.

What should you verify before you lock in dump truck leases or yard space?

Founder checklist

Yes—before you commit, verify the buyer mix, average order value (AOV), repeat demand, fleet coverage, variable costs, and cash runway line up with the model. The $633K minimum cash need hits by Month 6, so the math has to work early.

1Buyer Mix50/30/20 mix

Verify construction, landscaping, and infrastructure demand shows up in this split before you scale spend, because the model only works if the right jobs fill the funnel.

2Order Value$2.5K/$1K/$3.5K

Check that quoted jobs clear these average order values, since a smaller ticket pushes break-even out fast.

3Repeat Demand1.50/1.20/0.80x

Make sure repeat orders hit these rates in the first operating year, or early demand will not support fixed costs.

4Fleet Coverage60/30/10 fleet

Keep small, medium, and large fleet coverage aligned with volume and dispatch staffing so orders do not stall while you wait on trucks.

5Variable Load9.5% rev

Hold payment processing, server, support, and insurance admin near these levels, because every extra point cuts contribution margin.

6Cash Runway$633K by M6

Keep at least the model's minimum cash through Month 6, and do not add truck leases or yard commitments unless you add them to the model.