In July 2000, Congress passed P.L. 106-252, the Mobile Telecommunications Sourcing Act. The Mobile Telecommunications Sourcing Act provides that each state may provide vendors with an electronic database that assigns each address in the state to the appropriate taxing jurisdiction(s). Download DOR's file following the national-standard data format for matching street addresses with the proper taxing jurisdiction code.
Build your own location code system by downloading the address files to integrate into your own accounting system.
Download shapefiles representing the sales tax jurisdiction boundaries in Washington State
Download shapefiles representing the property tax district boundaries in Washington State.
Shape files for Stumpage Valuation Areas (SVAs) and Haul Zones (HZ).
Join the Sales Tax GIS Listserv E-mail Service to receive important sales tax rate information updates notified when the rates are available for downloading.
If you have any questions about how to use our GIS products/services, call the Telephone Information Center at 1-800-647-7706. Feel free to e-mail us with any comments or suggestions as well.