Requires the department of revenue to: (1) Make publicly available an online searchable database of all taxes and tax rates in the state for each taxing district; and

(2) Provide tax rate calculators on the searchable database to allow taxpayers to calculate their potential taxes.

Requires each taxing district to report its tax rates to the department of revenue to facilitate the department's efforts in creating and maintaining the searchable database of each tax rate for all taxing districts in the state.

Requires the database to be accessible by and from the state expenditure information web site created under RCW 44.48.150.