Have you seen an increase in your workers’ compensation premiums? One reason for these increases may be your experience modification rate or x-mod. Experience rating is a process that modifies the published rates by taking into account the actual reported losses and payrolls of an individual business. Only companies of a certain size qualify for experience rating, and the guidelines are different in every state. Here are some common questions you can ask surrounding x-mods that can help you better use them to your benefit.