The taxes imposed by this chapter do not apply to amounts received by the Washington health benefit exchange established under chapter 43.71 RCW.
RCW 82.04.323
Retroactive application- 2013 2nd sp.s. c 6 § 8: "Section 8 of this act applies both prospectively and retroactively." [ 2013 2nd sp.s. c 6 § 10.]