Why contractor cash flow problems are structural, not just bad luck
Most contractor cash flow problems aren't caused by customers who won't pay — they're caused by systems that make it too easy to delay. Invoices that go out 2 weeks after job completion. Follow-up that happens when someone has time. Checks that have to be mailed. Every friction point in the billing process is a day added to your DSO.
The contractors with the best cash flow have systematized the simple stuff: invoices go out the same day as job completion, payment links are included, and follow-up happens automatically on a set schedule. The customer experience is seamless. The billing team (even if that's just you) doesn't have to think about it.
The 5 fastest changes to improve contractor cash flow
In order of ROI: (1) Add a payment link to every invoice — customers who can pay with a click pay 3x faster. (2) Send invoices the same day as job completion while the customer is still happy about the work. (3) Start automated SMS reminders — first reminder on the due date, follow-up at +7 days. (4) Add a voice follow-up for invoices past 14 days. (5) Require a deposit on larger jobs to reduce the float you're carrying.
Items 1-4 can be set up with Surety in an afternoon. Item 5 is a business policy change that pays for itself within the first month.
The deposit conversation: collecting money upfront without losing the job
Requiring a deposit (typically 30-50% for jobs over $2,000) is one of the most effective cash flow tools available to contractors. It filters out customers who will never pay, reduces the amount at risk for jobs that do go sideways, and commits the customer psychologically to the transaction.
The framing matters. 'We require a deposit to secure your spot and order materials' is professional and logical. Most customers accept it without complaint. Customers who refuse a reasonable deposit request sometimes have payment intentions you don't want to discover after the work is done.
Measuring cash flow improvement
Track two metrics: DSO (days sales outstanding — average days from invoice to payment) and AR aging (percentage of receivables over 30, 60, and 90 days). Most contractors starting from scratch on AR automation see DSO improvement of 15-25 days within the first 60 days. AR aging over 60 days typically drops by 40-60% within the first quarter.
Surety's attribution dashboard shows you the specific contribution of automated follow-up to these numbers — called vs. uncalled payment velocity, so you know exactly what the automation caused.