What’s the difference between the EM and the TM?
EM stands for experience modifier and is the term usually used in the insurance industry. TM stands for total modified and was the term used by the Ohio BWC before it began to more closely mimic the insurance industry. The EM is a whole number, and employers with a good claims experience have an EM of 100 or less. The TM is a percentage where a negative number means that your company has a good claims experience. An EM of 75 is the same as a TM of –25. Group rating quotes use the TM because it’s easier to understand that projected savings of -75 are better than projected savings of -57. You might not recognize that an EM of 34 is better than an EM of 65.
