Experience Period

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Experience Period

The Experience Period is "the oldest three of the four fiscal years preceding the effective date of premium rates" as specified in WAC 296-17-850 (2) (www.leg.wa.gov). As an example, for Rating Year 2007 the Experience Period runs from July 1, 2002 through June 30, 2005.

The Experience Modification Factor is calculated using the firm's Expected Losses during the Experience Period and the firm's Actual Losses during the Experience Period.

A claim will affect a firms experience rating and premium rates for three years.

A claim will affect your experience rating and premium rates for three years
A claim will affect your experience rating and premium rates for three years
A claim with a date of injury between	Will affect your premiums for calendar years
July 1, 2004 and June 30, 2005	2007, 2008, 2009
July 1, 2005 and June 30, 2006	2008, 2009, 2010
July 1, 2006 and June 30, 2007	2009, 2010, 2011