If your employees are being paid more than they are owed, then you are losing money; if they are not being paid enough, then they are not receiving what they deserve.
You may be asking, "why should I outsource my payroll?"
One of the most important reasons, as stated above, is to have assured accuracy. The laws governing payroll and its execution do change and it is hard to find time to continually research the subject. The laws for filing taxes for payroll are even more fluid and changing, necessitating even more research. There is also a financial advantage to outsourcing your payroll. Hiring a permanent staff member to do your accounting will cost significantly more than hiring Global Accounting Services Inc. to perform the task for you.