Wash. Rev. Code § 84.68.010
Injunctions and restraining orders shall not be issued or granted to restrain the collection of any tax or any part thereof, or the sale of any property for the nonpayment of any tax or part thereof, except in the following cases:
[ 2000 c 103 s 30; 1972 ex.s. c 84 s 3; 1961 c 15 s 84.68.010. Prior: 1931 c 62 s 1; RRS s 11315-1.]