"Most plans have a set period (such as March 31 of the following year, for a calendar year plan) to submit expenses for the prior year. If any money is left over after that period, the employer has four options.... [T]he employer should make sure that its plan document permits any or all of these options ... Employers using a third-party administrator (TPA) to administer the health FSA should also make sure the option they choose can be handled by the TPA."  MORE >>