Cash flow is the difference between a growing business and one that's always scrambling. And the biggest driver of bad cash flow for service businesses is slow payment collection.
Here's how to fix it.
Collect Payment Before You Leave the Job
This is the single biggest change most service businesses can make. Get paid on-site, every time, before you pack the truck.
Customers expect it. Modern payment processors make it easy. There's no good reason to leave without payment.
"But what if they don't have their card?" Be ready for this. Offer payment via text link — you send them a payment link via SMS and they pay on their phone while you're wrapping up. You walk out the door paid.
What to do with the 2% who push back: Some customers will say "just send me an invoice." Have a firm but friendly response: "Our policy is to collect payment at the time of service — it's how we keep prices lower for everyone. I can take card, check, or send you a quick payment link right now."
Use Clear Payment Terms on Every Estimate
Before the job starts, the customer should know exactly when and how payment is due.
Common terms for service businesses: - Residential service calls: Payment due upon completion (collect on-site) - Larger projects: 50% deposit upfront, 50% upon completion - Commercial accounts: Net 15 or Net 30 with a signed credit application
Include your payment terms on every estimate and every invoice. "Payment due upon completion" printed clearly on the invoice is your first line of defense if there's ever a dispute.
Require Deposits on Larger Jobs
For jobs over $1,000-2,000, always collect a deposit before you start work. This is standard practice and customers expect it.
A 30-50% deposit covers your material costs, so you're never financing a customer's project out of your own pocket. And a customer who pays a deposit has skin in the game — they're less likely to back out or dispute the final invoice.
Make deposits easy with digital signature + payment on the estimate itself. Customer approves the estimate, pays the deposit, and you have your commitment.
Send Invoices Immediately After the Job
Every hour you wait to send the invoice is an hour the customer has moved on with their life. Send the invoice the moment the job is complete — ideally from your phone in the customer's driveway.
Digital invoices with a "Pay Now" button are dramatically faster to collect than paper invoices. The customer sees it on their phone within minutes and can pay with a click.
Follow Up on Unpaid Invoices Systematically
For the invoices that do slip through without payment, you need a process:
- **Day 1:** Invoice sent automatically
- **Day 3 (if unpaid):** Reminder text or email, friendly tone
- **Day 7 (if unpaid):** Second reminder, slightly more firm
- **Day 14 (if unpaid):** Phone call from you personally
- **Day 30 (if unpaid):** Final notice with mention of late fees or collections
Don't let invoices sit. A customer who hasn't paid after 30 days is much harder to collect from than one who hasn't paid after 7.
Add a Late Fee Policy
Put a late fee in your payment terms — typically 1.5% per month on unpaid balances after 30 days. Print it on every invoice.
Most customers will never owe late fees. But the policy gives you leverage with the ones who do, and signals that you run a real business with real terms.
The Real Solution: Eliminate the Problem Before It Starts
All of this is easier when you collect on-site. The best way to reduce slow-pay is to not create accounts receivable in the first place.
Software that lets your technicians take card payments from their phone, send payment links via text, and email invoices immediately after completion — that's how you get paid every time, every job.