RCW 82.02.260: Seller obligation to collect sales taxes.

A seller that is obligated to collect the taxes imposed under chapter 82.08 RCW must also collect all other applicable taxes and fees in effect as of January 1, 2020, or enacted after December 31, 2018. For purposes of this section, "taxes and fees" means any monetary exaction, regardless of its label, imposed on a buyer and that the seller is required to collect and pay over to the department.