Premiums changing for new enrollees in plan, but staying the same for existing enrollees
Does anyone have a suggestion on how to implement a change in premiums for new enrollees only, while keeping the premiums the same for current enrollees? We have a legal plan with 5 different plan options and premiums. Effective 01/01/14, the premium will change for all 5 options for new enrollees only. Those currently enrolled will keep the existing premiums. Is the best approach to create an employee group for the existing enrollees and tie the current options rates to that group, then create new options rate for the rest of the population? Any thougts?