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Home / Find taxes & rates / Retail sales tax / Sales and use tax tools
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Sales and use tax tools

Washington has tools dedicated to helping businesses that sell and deliver goods.


Downloadable databases

Downloadable databases of addresses and tax jurisdictions that businesses can integrate into accounting systems or your own customized applications. The files are in comma-separated (.txt) format, in zip files. Available by:

  • County
  • State
  • ZIP + 4


Customer database conversion service

Send us your customer address database and we'll send you the location code and sales tax rate for each Washington address.


Excel workbook

A downloadable tax calculator workbook using Microsoft Excel that displays tax rates and location codes, calculates totals, and summarizes sales by city or county without an online connection. This Excel Workbook may be used to upload local sales tax data to e-file, or the local sales tax data may be printed and attached to your paper tax return.

Note: The workbook cannot used for sales or leases of motor vehicles or for lodging sales.


Washington Sales Tax Rate Lookup User Interface

The URL Interface provides a direct access to the Washington Department of Revenue’s address-based rate lookup technology platform. Using the URL interface we provide, you can access sales and use tax rate data using address or ZIP + 4 code information and tie the data into your shopping cart checkout process or accounting system in real time.


Washington Sales Tax Rate Library (Source Code)

Source code that provides a sales tax rate lookup using the Department of Revenue's address and rate download files.


Tax rate lookup tool

The tool has a tax calculator function that provides the tax amount, total and a confirmation code.

With the exception of the map and calculator features, this tool is also accessible by handheld devices such as PDAs, Blackberries and cell phones at taxrates.dor.wa.gov.

  • Street address
  • ZIP + 4
  • Map
  • Latitude/longitude

Tax rate lookup mobile app for iOS and Android


City and county tax rates

Sales and use tax rates and location codes available in a variety of online, downloadable formats.

  • Alphabetically
  • Cities grouped by county
  • Excel file format
  • QuickBooks file format (instructions)


Certified Service Providers (CSPs)

Businesses that help taxpayers comply with sales tax collection and remittance requirements in states that are members of the streamlined sales and use tax agreement.


Tools summary (pdf)

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Before I file

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File or amend my return

Report no business activity

Late filing

Reviews and appeals

Apply for a tax refund

Doing business

Business types

Register my business

My account

Audits

Find taxes & rates

Sales & use tax rates

Tax incentives

Business & occupation tax

Retail sales tax

Use tax

Property tax

Other taxes

Income tax

Education

Attend a workshop in your area

Watch an online workshop or tutorial

Invite a speaker to your group 

Request a visit from a tax consultant

Forms & publications

Forms by name

Forms by subject

Publications by name

Publications by subject

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  • Department of Revenue YouTube channel

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