Counties and cities may use tax revenue for:

(1) Acquiring, rehabilitating, or constructing affordable housing, which may include new units within an existing structure or facilities providing supportive housing services under RCW 71.24.385 (behavioral health organizations);

(2) Operations and maintenance costs of new units of affordable or supportive housing;

(3) Providing rental assistance to tenants that are at or below 60 percent of the area median income of the county or city that is imposing the tax; or

(4) Administrative costs of the county or city associated with administering this section, which may not exceed 10 percent of the annual tax distributed to the jurisdiction under this section.