Request that the payroll company refund unpaid tax money within three business days of notification that you are terminating their service. Most payroll companies issue employee reports once a quarter. If you decide to leave in the middle of a quarter, this can be problematic. Unfortunately, some companies that use payroll services find themselves in a nightmare of inaccessible account managers and inaccuracies in their accounts. One way to elude this problem, is to ask around before you decide on a payroll service.
Most people are familiar with the major services or know someone who is.
Some services won't return calls for days. You can gauge the level of responsiveness even during the interview process when you may find that your calls go unanswered. If you can't get information from a payroll service when you're interested in giving them business, it will probably take them longer to return a telephone call when you have a question. You may discover that the employee who handles your account one month is gone the next month. Frequent changes can be frustrating, especially if you have customized needs.