A business plan for a portable toilet company is shorter than the templates suggest. Most of it is one model: how many units you will have on rent, what each one earns per billing cycle, how many stops a truck can do in a day, and what each stop costs. Get that model right and the rest of the plan is description. This post goes through each section and how to build its numbers from quotes in your own area, because rates and costs vary too much by region for anyone else's figures to be useful.
1. The summary
One paragraph, written last: who you will serve, where, with how many units and trucks, and when the business covers its costs. A lender reads this first and often only this, so it carries the break-even month from section 8.
2. The market and your customers
Name the customers you will actually call. Construction is the steady weekly book: look at the building permits issued in your county and the builders and contractors behind them. Events are higher rates on weekends: list the fairs, festivals, races and venues within your service area and when they run. Municipal accounts are parks, ballfields and public works, often on a contract with a renewal date. Then list the companies already serving the area and what they are known for. You are looking for the gap: an underserved county, slow service, or no one who takes events seriously.
3. Service area and disposal
Draw the area you will serve and mark where the waste goes. The disposal site's location, hours and rate shape every route, so the plan should name the site and show you have, or can get, an agreement. A service area whose far edge is an hour from the disposal site needs pricing that says so. The startup checklist explains why the disposal agreement comes before the truck.
4. Equipment
List the truck, the units by type (standard, ADA, hand-wash stations, any deluxe or flushing units for events), the yard and the trailer if you will deliver with one. Put a real quote next to each line, new or used, from dealers in your region. Include the consumables: chemical, paper, hand sanitizer and the like, priced per service.
5. Pricing and billing
State the rate for a standard unit with weekly service and how you got to it: from the cost of the stop up, then checked against what the market charges. The pricing post walks through it. State the billing cycle too, because it changes the revenue line: a 28-day cycle bills thirteen times a year and a monthly one twelve, and the cycle post explains the difference. Event pricing, delivery fees and extra services each get their own line.
6. The revenue model
The core line is units on rent, multiplied by the rate per cycle, multiplied by the cycles in a year. Build it month by month, because units on rent grow as you sign contracts and often dip in winter. A worked example, with made-up numbers only to show the arithmetic: 50 units on rent at a rate of R per 28-day cycle bring in 50 × R per cycle, and 650 × R over thirteen cycles. Replace the 50 with your month-by-month estimate and R with your rate. Add events and other services below it as separate lines.
Be honest about utilization. Units in the yard earn nothing, and a fleet is never fully out. Plan for some units always being cleaned, repaired or waiting for the next job.
7. Costs
Split costs into two groups. Per truck and per month: the truck payment, insurance, the driver's wages, the yard, permits, software and phones. These do not change with how busy the truck is. Per stop: fuel for the drive, disposal for the gallons pumped, chemical and consumables. These grow with every unit on rent. The split matters because once a truck's fixed costs are covered, each extra stop on its route is mostly margin, which is the point the margins post makes.
8. Break-even
Break-even is the number of units on rent at which revenue covers the fixed costs plus the per-stop costs. Work it out by dividing the monthly fixed costs by what one unit leaves over each month after its own per-stop costs. That number of units, and the month your revenue model reaches it, is the most important line in the plan. If the month is further out than your working money lasts, change the plan: fewer units bought up front, a used truck, or a contract signed before launch.
9. Cash flow for the first months
Revenue in the model is not cash in the bank. Invoices are paid on terms, often 15 or 30 days after they are sent, and the first cycle's invoices go out weeks after the units land. The plan should show when cash actually arrives, and carry enough working money to pay the driver, the fuel and the disposal site until it does. Billing in advance for some customers and offering a lower price for cash or ACH both shorten the gap.
10. Milestones
Close with what triggers the next step: the unit count where the first truck's route is full and a second truck is needed, the point where an office person beats the owner doing the billing at night, and when you move from a spreadsheet to software. Writing these down now is what keeps growth from arriving as a crisis.
