• Resources for electronic report users
• Retro forms and publications
• Retro premium calculator
• Retro program rules
• Dates and deadlines affecting Retro participants
• Retrospective rating mailing list
• Contact Retrospective Rating

Resources for electronic report users

• Data fields for the adjustment report, updated September 2014
• Data fields for the monthly report
• Data fields for the quarterly report
• How to download and import your Retro data files (for new users), updated March 2018

For use with downloadable data files:

• Column headers template for the adjustment report, last updated August 2018
• Column headers template for the monthly report, last updated May 2019
• Column headers master template for quarterly report and data files (includes data element definitions for factors & premium report), last updated May 2019

Retro forms and publications

Forms

• Individual Retrospective Rating Plan Agreement  (F250-003-000)
• Application for Group Retrospective Rating  (F250-004-000)
• Application for Group Membership and Authorization for Release of Insurance Data  (F250-016-000)
     Español (Spanish) (F250-016-999)
• Retrospective Rating Adjustment Protest  (F250-024-000)

Publications

• Is Retrospective Rating Right for You?  (F250-006-000)
    Español (Spanish)  (F250-006-999)
• Group vs. Individual Retrospective Rating Participation  (F225-016-000)
• Retrospective Rating Enrollment Decisions  (F225-017-000)
• Keys to Retro Success  (F225-018-000)
     Español (Spanish)  (F225-018-999)
• Evaluating Retro Groups  (F225-019-000)
     Español (Spanish)  (F225-019-999)
• Retrospective Rating Business & Industry Category Guide  (F250-025-000)
• Protesting Retro Adjustments  (F250-027-000)

Retro premium calculator

• Current Retro Premium Calculator, updated December 2020; applies to coverage periods beginning July 1, 2017, and later. This calculator assists in projecting future retro performance (though projections are not guaranteed). Please email us with any questions about the calculator.

• Retro Premium Calculator, updated July 2017. This premium calculator is meant to be used only for coverage periods from July 2014 through April 2017. Unlike the current premium calculator above, this calculator does not reflect subsequent changes to the Retro insurance tables and single loss limit program rules.
• Prior Retro Premium Calculator, updated November 2014. This premium calculator is meant to be used for coverage periods prior to July 2014 only. Unlike the updated Retro Premium Calculator (above), this calculator still uses the Performance Adjustment Factor (PAF) in the net insurance charge under premium-based plans.
  

Retro program rules

The rules governing Retrospective Rating can be found in the Washington Administrative Code (WAC):

• Chapter 296-17B: Retrospective rating for workers' compensation insurance.
• Section 296-17B-900: Retrospective rating plans standard premium size ranges.
• Section 296-17-901: Risk classification hazard grouping table.

Calendar of dates and deadlines affecting Retro participants

Significant dates and deadlines, as well as a schedule of report publications for 2021 can be found in our Retro 2021 dates and deadlines calendar. Last updated December 2020.

Retrospective rating mailing list

Sign up to receive our email bulletins. Subscribers to the L&I Retro News mailing list will typically receive 6–8 messages a month, with news and updates about issues affecting Retro participants.

Contact Retrospective Rating

You can reach Retro Program staff by email (Retro@Lni.wa.gov), or by calling 360-902-4851 (Fax: 360-902-4258).