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Avalara Help Center

Does Avalara File Washington B & O Tax?


You need to know if Avalara files Washington B&OHoverTT.png tax returns.


Avalara Returns


  • Avalara populates the B&O tax based on information from the liability worksheet.
  • To add a Washington state B&O return, go to the Manage Filing Calendars page in the Admin Console.
    • The WA MultiPurpose Sales form is for non SST subscribers
    • The WA B&O Combined Excise form is for SST subscribers
  • At this time, Avalara does not support local B&O forms.
    • If these returns are required of your company to file, they would have to be handled with an alternative solution such as filing in-house.

Note: If you have specific B&O information you would like filed on your returns please email with the specific amounts and categories you would like them listed under.

Next steps

For more information, learn how to use the Returns filing calendar or our Returns - frequently asked questions.