In computing tax, insurers as defined by RCW 48.01.050, may deduct from the measure of tax amounts paid out for claims incurred before July 1, 1990, for covered health services under medical and dental coverage purchased under chapter 41.05 RCW.
RCW 82.04.4331
Implementation-Effective dates-1988 c 107: See RCW 41.05.901.