What is a RAF or MURF?
Initial rates from a carrier are based on average age, average sex, SIC codes and zip codes. The rates are considered “base rates”. After the employees have submitted health questionnaires the insurance carrier will add a factor to the rate called a RAF (Rate Adjustment Factor) or MURF (Medical Underwriting Factor). This RAF or MURF could increase or decrease the base rates depending on the overall health of the group.