Invoice immediately
Every day between completed work and invoice sent is cash the business is financing.
Track by customer and work type
Commercial projects, residential service, insurance work, and maintenance may each require different expectations.
Change orders are cash too
Late or informal change-order billing often becomes margin donated to the customer.
Field note
Slow invoices are owner-funded loans
When invoices go out late or collections drift, the business is financing customers while still paying payroll, vendors, insurance, fuel, and taxes.
DSO is useful because it converts a vague cash feeling into a number the owner can manage every week.
The next move is diagnosis
Before choosing a fix, the owner needs to know whether the issue is margin, timing, team, reporting, tax coordination, value risk, or owner dependence.