The download data is a resource for you to integrate into your own customized applications. The files are in comma-separated (.txt) format, in zip files.
The rates are updated quarterly. Please check our website 30 days prior to the first day of the quarter, to download the latest sales tax rates.
Washington State Sales Tax Library
Download data
Downloading Instructions
Address data by:
County - Descriptions for address data fields
WA State - Descriptions for address data fields
Location codes and rates tables - Descriptions for location codes and rate fields
ZIP + 4
These files are
zipped. They will need to be
unzipped to extract the data.
2012
- Quarter 1 (Jan 1 - Mar 31)
2011
- Quarter 4 (Oct 1 - Dec 31)
- Quarter 3 (July 1 - Sept 30)
- Quarter 2 (Apr 1 - Jun 30)
- Quarter 1 (Jan 1 - Mar 31)
2010
- Quarter 4 (Oct 1 - Dec 31)
- Quarter 3 (July 1 - Sept 30)
- Quarter 2 (Apr 1 - Jun 30)
- Quarter 1 (Jan 1 - Mar 31)
2009
- Quarter 4 (Oct 1 - Dec 31)
- Quarter 3 (Jul 1 - Sept 30)
- Quarter 2 (Apr 1 - Jun 30)
- Quarter 1 (Jan 1 - Mar 31)
2008
- Quarter 4 (Oct 1 – Dec 31)
- Quarter 3 (Jul 1 – Sept 30)
- Quarter 2 (April 1 – June 30)
A few Washington zip codes start with zero. These are valid zip codes for federal tribal areas. If the files are opened using Microsoft Excel, the leading zeros may not be displayed.
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