Overtime pay is a significant cost for many companies, so it is not unusual for some to avoid paying. They could be salaried workers, but you may pay a pro-rated rate if your salary is less than $684 weekly.nEmployers can also base overtime on pay periods instead of weeks. Employees are often paid bi-weekly or monthly; the missing overtime can be a loophole or an honest mistake. Misclassifying an employee can also cause problems; doing so saves companies from paying employment taxes and benefits.