What is DSO (days sales outstanding) in construction?
Days sales outstanding (DSO) is the average number of days it takes to get paid after you invoice. In U.S. construction it commonly runs 60 to 90 days, roughly double the level analysts consider healthy. A lower DSO means cash arrives sooner, which is often the difference between making payroll comfortably and scrambling.
How to read your DSO
Compare your DSO to your payment terms. If you bill Net 30 but your DSO is 75, customers are paying 45 days late on average. Tracking DSO by customer reveals who is reliably slow, which is exactly who you should chase first and price carefully when you bid.
How to bring it down
Invoice the day work is billable, send reminders before and after the due date, escalate the slow payers sooner, and make it easy to pay. Small, consistent collection habits can move DSO by days, and on a real receivables balance that is meaningful cash.