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2018 Experience Modification Estimator Available on

The WCIRB has launched the 2018 Experience Modification Estimator (Estimator) for insurers, agents and brokers to help policyholders understand how their payroll and claim experience will be used in the computation of their 2018 experience modification. By entering payroll, classification and claims information into the Estimator, users can obtain an estimated experience modification using proposed 2018 Experience Rating Plan values including expected loss rates, D-ratios and primary thresholds that vary by employer size. The Estimator is Excel-based making it easy for users to view and simply copy and paste data. The detailed estimated experience modification results can be printed or saved and are available at no cost.

To use the WCIRB Experience Modification Estimator, go to the Learning Center of or click on the link below:

The 2018 Estimator will be updated with the final approved experience rating values when the Insurance Commissioner issues a decision on the 2018 Regulatory Filing, and will be available in the Learning Center of 

The Estimator is for informational purposes only and results are merely approximations based on the information entered and not published experience modifications. For more information and helpful tips on how to use the Estimator, go to the WCIRB Experience Modification Estimators page.

Related Information

January 1, 2018 Regulatory Filing

July 6, 2017