Washington Revised Code Title 82. Excise Taxes § 82.04.250. Tax on retailers

(1) Upon every person engaging within this state in the business of making sales at retail, except persons taxable as retailers under other provisions of this chapter, as to such persons, the amount of tax with respect to such business is equal to the gross proceeds of sales of the business, multiplied by the rate of 0.471 percent.

(2) Upon every person engaging within this state in the business of making sales at retail that are exempt from the tax imposed under chapter 82.08 RCW by reason of RCW 82.08.0261, 82.08.0262, or 82.08.0263, except persons taxable under RCW 82.04.260(11) or subsection (3) of this section, as to such persons, the amount of tax with respect to such business is equal to the gross proceeds of sales of the business, multiplied by the rate of 0.484 percent.