Collecting from commercial and property management clients

Why commercial accounts pay differently

Homeowners usually pay when the tech finishes. Commercial clients, property management companies, HOAs and facilities teams pay through a process: a work order, a purchase order, an approval, an accounts payable run and sometimes an owner's sign-off. Each step is a place where your invoice can stall. When it stalls, nobody on the client side is being dishonest; the invoice simply does not match what their system expects, so it sits.

Commercial work is still worth having. It is steadier than retail demand, it fills weekday schedules and a good property manager sends repeat work across many units. But it ties up cash. In the 2025 Small Business Credit Survey, 50% of small employer firms reported uneven cash flow, which includes collecting on receivables, and among firms with financial challenges 24% had themselves made a late payment or not paid^[1]. Some of your commercial clients are under the same pressure.

The market is large and busy. The US rental vacancy rate was 7.6% in the third quarter of 2026^[2], and every turnover brings make-ready cleaning, repairs and system checks on a deadline. General maintenance and repair workers, the in-house role that often writes up the work order you receive, held about 1.6 million jobs in 2025^[3]. Commercial cleaning crews often work evenings, nights or weekends^[4], when the people who approve invoices are not at their desks, so confirm approver details during the day and never rely on a note left on site.

Outside credit does not fill the gap easily for small firms. Among applicants for loans, lines of credit or cash advances, only 37% of firms with revenue under $100,000 were fully approved, against 76% of firms with revenue over $10 million^[1]. Money already owed to you is the cheapest financing you have.

Set the terms before the first job

Most collection problems are solved at onboarding. Before you do work for a new commercial account, collect and agree the following, and keep it on file:

• A signed service agreement or credit application with payment terms, late fee terms and who signs for work.
• The billing contact, the approver and the AP contact, with email addresses, and whether invoices must go through a portal.
• Purchase order rules: whether every job needs a PO number, and the not-to-exceed amount a tech can approve on site without a call.
• Invoice requirements: property or unit address, work order number, photos, signed ticket, lien waiver or W-9.
• Billing frequency: per job, weekly batch or monthly statement. Match whatever their AP team processes fastest.
• The legal owner of the property, which you need for lien notices and which is often different from the management company.

Reading the AR aging every week

The AR aging report sorts open invoices by how long they have been outstanding. Run it every Monday, sorted by customer, and act by bucket.

Track days sales outstanding (DSO) once a month: accounts receivable at month end ÷ revenue for the month × days in the month. Track it separately for commercial and residential accounts, because a healthy residential DSO will hide a slow commercial book.

A reminder cadence with scripts

1. 01

   Day 0: send a complete invoice

   Send it the day the job is finished, with the PO number, work order number, address, photos and signed ticket attached, to the billing contact and any portal required.

2. 02

   Day 3: confirm receipt

   Script: 'Hi Dana, I'm confirming you received invoice 4417 for the rooftop unit repair at 210 Oak, PO 88213. Is there anything else your AP team needs to process it?'

3. 03

   Due date plus 3 days: first reminder

   Script: 'Invoice 4417 for $1,860, PO 88213, was due on the 15th. I've attached it again. Could you let me know when it is scheduled for payment?' Example amounts.

4. 04

   Plus 15 days: phone call

   Call AP directly and ask three questions: Is the invoice in your system? Is it approved? What is the payment date? Write down the answer and the name of the person.

5. 05

   Plus 30 days: escalate

   Email the approver and account owner with a statement of all open invoices. Script: 'We value the work at your properties. Three invoices totaling $6,240 are now more than 30 days past due. Can we agree a payment date this week?' Example amounts.

6. 06

   Plus 45 to 60 days: final notice

   State the next step in writing: late fees under the agreement, a hold on non-emergency work and, where it applies, a notice of intent to lien. Then do what you said.

Keep the tone polite and factual all the way through. Name the invoice, the amount and the date every time. Vague messages such as 'just checking in on our account' are easy to ignore; specific ones get forwarded to whoever can fix the problem.

Late fees and stopping work

Late fees only work if they are in a signed agreement or on accepted terms before the work is done. Check your state's rules on maximum interest and late charges with your attorney, put the fee in writing and apply it consistently. A fee you never charge teaches clients that your due date is a suggestion.

A hold on new non-emergency work is often more effective than the fee. Property managers need reliable vendors, and a polite notice that scheduling is paused until the account is current usually gets the invoice approved. Keep emergency calls that affect safety or tenants' habitability separate from that decision, and document why.

Lien rights: know them before you need them

Every state gives contractors some form of mechanic's lien right against the property when they improve it and are not paid, but the rules differ a great deal. Some states require a preliminary notice within a short window after you first furnish labor or materials; others require notice to the owner before the lien is filed; all set a deadline after the last day of work, after which the right is gone.

• Find out, with your attorney or a lien service, which notices your state requires for the kinds of work you do, including repair and service work, which may be treated differently from construction.
• Record the legal property owner for every commercial account at onboarding.
• Calendar the deadlines for any large job automatically, from the first day of work.
• Send required preliminary notices routinely, so they are a normal business step rather than a threat.
• Exchange conditional and unconditional lien waivers correctly when you are paid.

This is not legal advice; deadlines and forms vary by state and by project type, so check before relying on them.

Example: cleaning up a property management account

Example (fictional): an HVAC company services 14 buildings for a regional property manager. At the October review the account shows $38,400 outstanding, of which $21,000 is more than 60 days past due. The office manager calls AP and learns that 11 invoices are missing PO numbers and four went to a staff member who left in the summer.

Example fix: she reissues the 11 invoices with PO numbers from the property manager's work order portal, updates the billing contact and sends a statement of account. Within three weeks, $29,000 is paid. The company then changes its process: dispatch will not book work for this client without a work order number, and invoices go through the client's portal the same day.

Example result: by January, the account's average days to pay falls from 71 to 38. Nobody had to threaten anyone; the invoices simply started matching what the client's system expected.

Make collections someone's job

In small companies, collections slip because everyone assumes someone else is doing it. Name one person who owns the AR aging, give them an hour every Monday, and measure them on DSO and on the over-60 bucket, not just on total collections.

Tie the work to your 13-week cash flow forecast, so collection dates feed straight into it, and to your bookkeeping routine, so payments are applied promptly and statements are accurate. Review slow accounts when you read your financial statements each month, because a rising receivables balance on the balance sheet is often the first sign of trouble. Slow payers also raise your effective break-even point, because you are carrying their costs as well as your own. For seasonal businesses, planning for this matters even more; see our guide to seasonal cash flow.