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The download data is a resource for you to integrate into your own customized applications and for your research purposes.  The files are in comma-separated (.txt) format, in zip files.

  The rates are updated quarterly.  You must update your rate information on the first day of the quarter to be considered properly using the technology.

Washington State Sales Tax Library

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Downloading Instructions

Address data by:

• County - Descriptions for address data fields
  • 2009
    • Quarter 4 (October 1 – December 31)
    • Quarter 3 (July 1 – Sept 30)
    • Quarter 2 (April 1 - June 30)
    • Quarter 1 (January 1 - March 31)
  • 2008
    • Quarter 4 (October 1 – December 31)
    • Quarter 3 (July 1 – Sept 30)
      
• WA State - Descriptions for address data fields
  • 2009
    • Quarter 4 (October 1 – December 31)
    • Quarter 3 (July 1 – Sept 30)
    • Quarter 2 (April 1 - June 30)
    • Quarter 1 (January 1 - March 31
  • 2008
    • Quarter 4 (October 1 – December 31)
    • Quarter 3 (July 1 – Sept 30)
• Location codes and rates tables - Descriptions for location codes and rate fields
  • 2009
    • Quarter 4 (October 1 – December 31)
    • Quarter 3 (July 1 – Sept 30)
    • Quarter 2 (April 1 - June 30)
    • Quarter 1 (January 1 - March 31)
  • 2008
    • Quarter 4 (October 1 – December 31)
    • Quarter 3 (July 1 – Sept 30)

ZIP + 4

These files are zipped. They will need to be unzipped to extract the data.

• 2009
  • Quarter 4 (Oct 1 - Dec 31)
    • Long - All 9 digit zip codes - Descriptions for ZIP +4 fields - Long
    • Short - All 5 digit zip codes with ZIP+4 high/low ranges - Descriptions for ZIP +4 fields - Short
  • Quarter 3 (Jul 1 - Sept 30)
    • Long - All 9 digit zip codes - Descriptions for ZIP +4 fields - Long
    • Short - All 5 digit zip codes with ZIP+4 high/low ranges - Descriptions for ZIP +4 fields - Short
  • Quarter 2 (Apr 1 - Jun 30)
    • Long - All 9 digit zip codes - Descriptions for ZIP +4 fields - Long
    • Short - All 5 digit zip codes with ZIP+4 high/low ranges - Descriptions for ZIP +4 fields - Short
  • Quarter 1 (Jan 1 - Mar 31)
    • Long - All 9 digit zip codes - Descriptions for ZIP +4 fields - Long
    • Short - All 5 digit zip codes with ZIP+4 high/low ranges - Descriptions for ZIP +4 fields - Short
• 2008
  • Quarter 4 (Oct 1 – Dec 31)
    • Long - All 9 digit zip codes - Descriptions for ZIP +4 fields - Long
    • Short - All 5 digit zip codes with ZIP+4 high/low ranges - Descriptions for ZIP +4 fields - Short
  • Quarter 3 (Jul 1 – Sept 30)
    • Long - All 9 digit zip codes - Descriptions for ZIP +4 fields - Long
    • Short - All 5 digit zip codes with ZIP+4 high/low ranges - Descriptions for ZIP +4 fields - Short
  • 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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