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Past Self-Insurance Assessment Rates

Assessments Based on Claim Costs
Administrative Assessment (WAC 296-15-223 [www.leg.wa.gov])
Fiscal Year Base Adjusted
2012 0.0496 0.0511
2013 0.0499 0.0535
2014 0.0501 0.0465
2015 .0476 .0467
Second Injury Assessment (WAC 296-15-225 [www.leg.wa.gov])
Fiscal Year Base Adjusted
2012 0.0775 0.0777
2013 0.1180 0.1324
2014 0.0844 0.0819
2015 .1299 .0581
Insolvency Trust Assessment (WAC 296-15-227 [www.leg.wa.gov])
Quarterly Average
2011 0.0011
2012 0.0011
2013 0.0009
2014 0.0015
2015 0.0000

Assessments Based on Worker Hours
Supplemental Pension and Asbestos (WAC 296-15-229 [www.leg.wa.gov])
Can Withhold Half From Employees
Calendar Year Assessment
2011 0.1080
2012 0.0934
2013 0.0930
2014 0.0912
2015 0.0898
Overpayment Reimbursement
Can Withhold Entirely From Employees
Calendar Year Assessment
2011 0.0000
2012 0.0000
2013 0.0000
2014 0.0000
2015 0.0003

Key

  • Base applies to newly certified self-insured employers.
  • Adjusted applies to self-insured employers certified for more than 2 years whose rate is impacted by any previous over or under collection of that assessment.
  • Time periods:
    • Fiscal year: July 1 through June 30.
    • Calendar year: January 1 though December 31.
    • Quarterly: Assessed each quarter.

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