2020 rates for workers' compensation

2020 base rates by business type and classification code

2020 base rates by risk classification (PDF)
2020 base rates by risk classification (Excel)

2020 hourly rates by classification code and fund

2020 hourly rates by classification code and fund (PDF)
2020 hourly rates by classification code and fund (Excel)

2020 experience rating parameters

2020 WAC 296-17-880 Table 2 Primary and Excess Credibility Values (Excel)
2020 WAC 296-17-885 Table 3 Expected Loss Rates and Primary Ratio by Risk Classification and Fiscal Year Expected Loss Rates in Dollars per Worker Hour (Excel)
2020 WAC 296-17-890 Table 4 Maximum Experience Modifications for Firms with no Compensable Accidents (Excel)

2019 rates for workers' compensation

2019 composite* hourly base rates by risk classification

2019 hourly base rates by risk classification and fund

2019 experience rating parameters

2018 rates for workers' compensation

2018 composite* hourly base rates by risk classification

2018 hourly base rates by risk classification and fund

2018 experience rating parameters

Rate change history

*The composite rate is the sum of the individual base rates assuming an experience factor of 1.0

Questions?

Contact your account manager with questions. Your account manager's phone number is on your quarterly report. You can also call 360-902-4817 for general information or to be directed to your account manager.