Adam Uzialko This article is sponsored by Intuit. Every small business owner knows the feeling: a client's invoice is 30, 60, sometimes 90 days past due, and the money you were counting on to cover payroll or restock inventory is still nowhere in sight. It's easy to write this off as a routine annoyance of running a business, but late payments carry real, compounding costs that touch nearly every part of a company's operations.