Most listings for a portable toilet business for sale lead with the unit count and the trucks. Those are the part you can see. What you are actually buying is the book: the sites that pay every cycle, how close together they are, and whether they stay after the owner who answers their calls leaves. Check the book first, then the equipment, then the paperwork, and plan the first 90 days before you sign.
What you are actually buying
A portable toilet company is a set of recurring service contracts with the equipment to fulfil them. Units and trucks can be bought new by anyone. The customers on weekly service, the density of the route that serves them, the disposal arrangement and the permits are the parts that take years to build, and they are what the price should rest on. Keep that order in mind when a listing leads with "300 units and two trucks".
1. Verify the customer book
Ask for the customer list by site: units at each site, the rate, the billing cycle, and the date service started. Then check it against money, not against the seller's summary.
- Match invoices to deposits. A year of invoices next to a year of bank deposits. Revenue that was invoiced and never collected is not revenue you are buying.
- Units on rent against units billed. The two numbers should be equal. If more units are on sites than on invoices, the seller has been servicing units for free, and you inherit the habit or the awkward phone call.
- Concentration. Work out how much of the revenue comes from the largest few customers. A book that rests on one builder is worth less than the same revenue spread over fifty sites.
- Contract terms. Read any written contracts for assignment clauses. City, county and school accounts in particular may need consent or a new bid when the owner changes.
- Receivables. The aging report shows who pays late and who has not paid at all. Old balances are a negotiation point, not an asset.
2. Count the units yourself
The unit count in the listing is the number the seller believes. Count the yard, then visit a sample of sites and count what is on them. Look at condition as well as quantity: sun-faded shells, cracked floors and broken hinges mean units to replace in your first year, and the price should know that. Ask whether every unit has a number, and whether the records say which unit is where. If they do not, plan to number and pin the fleet in your first month; tracking units explains how.
3. Inspect the trucks and tanks
Ask for titles, maintenance records and the last year of pre-trip inspections. Have a mechanic look at the waste tank, the pump and the hoses as well as the chassis, because the tank and pump are what keep a service truck working. Check the weight rating against the licenses your drivers hold, and check that any lettering the permit requires is on the truck. The DVIR post covers what a vacuum truck's inspection should include.
4. Read the permits and the disposal deal
Waste hauler and septage permits are often issued to a company and its vehicles, and many do not transfer to a new owner. Ask the issuing agency what a change of ownership requires, and how long it takes, before you set a closing date. The licensing post explains how the rules differ by state.
The disposal agreement matters as much as the permit. Find out where the waste goes, whose name the agreement is in, the rate, the hours, and how far the site is from the route. A business whose nearest disposal site is an hour away has that hour in every service day, and the price should reflect it.
5. Map the route density
Put every site on a map. Clustered sites mean many stops per truck per day; scattered sites mean the same revenue costs more to serve. Look for the outlying sites priced like the ones in town, and ask how many service days the current routes take. A book that fits in four tight days is worth more than one that needs five spread across the county. The margins post explains why stops per truck move margin more than anything else.
6. Check who the customers are loyal to
In a small portable toilet company the owner often drives a route, answers the phone and knows every superintendent by name. Customers may be loyal to that person rather than to the company. Ask how long the owner will stay through the handover, and agree it in writing. If a long-serving driver comes with the business, keeping that driver through the first year protects the book.
7. Look at how the business bills
Ask what the business bills from. A spreadsheet or a paper ledger is common, and it is where unbilled units and missed cycles hide. Note whether it bills monthly or every 28 days, whether the first invoice for a new unit is prorated, and how customers pay. None of these should stop a purchase, but each one is something you will change in your first months, and some are revenue the seller was leaving on the table. The billing cycle post covers the cycle question.
8. Get the deal structure right
Whether you buy the assets or the company itself changes what liabilities come with it, how the purchase is taxed, and whether contracts and permits move with the business. That is a question for an attorney and an accountant, and it is worth paying for their answer before you sign, not after.
The first 90 days after closing
- Tell every customer, with the seller. A joint letter or call says the service, the driver and the schedule stay the same. Customers leave when they hear about a sale from someone else.
- Move the book into one system. Every customer, site, unit count and rate, from the seller's records into the software you will run on, then compare the first cycle's invoices with the seller's last cycle.
- Number and pin the units. While you visit every site in the first cycle, record which unit is where.
- Audit the first two cycles. Units on sites against units billed, every cycle, until the two numbers stay equal.
- Leave prices alone for a cycle or two. Fix billing gaps first. Re-price outlying sites at renewal, once customers know you.
Buying a portable toilet business can be the fastest way into the industry, as long as the book behind the price is real. Most of the checking is the same work you will do in your first months anyway; doing it before you sign is what lets it change the price.
