How to File a DBA in Washington (3 Simple Steps)

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How To Use This Guide

Use our free guide below to file for a DBA in Washington:

Use A Professional Service

A professional service will handle filing your DBA on your behalf, allowing you to focus on the other needs of your new business.

4.4 out of 5 stars LegalZoom ($99 + state fee) for the most popular DBA filing service available.

4.6 out of 5 starsCorpNet ($108 + state fee) for a more personalized DBA filing service.

Step 1) Secure Your Brand Name

WebsiteWashington doesn't require you to file docs if you found a sole proprietorship under your own legal name. But, if you want to form under a different name you'll need to pay the $5 and register it through the Washington State Business Licensing Service.

Before you do that, conduct thorough searches with the Washington Secretary of State and the U.S. Patent & Trademark Office to ensure your brand name isn't already taken or too similar to another.

Now would be the perfect time to make sure there’s a web domain available for your DBA.

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Step 2) Complete The Application

Register an LLCOkay, first print out a copy of the Business License Application. Keep in mind there's a $19 filing fee for this form. It's a substantial document so you may need some assistance to ensure it's filled out and signed properly. Can you apply online? Yes, but it's good to have hard copies of these sorts of things as well.

If you want to investigate the online application process, head to the Washington State Dept of Revenue's My DOR section and create an account.

Step 3) Submit The Business License Application Form

Mail in the FormWhen you’ve completed the form, you can then have it notarized, sealed and stamped by a recognized authority.

Also, don't forget that the form requires you to already have an Employer Identification Number (EIN). If you don't have one yet, head on over to and begin the application process.

Need Help Filing Your DBA?

If you'd like help filing a DBA in Washington, feel free to read our reviews of the two most popular services.

  • LegalZoom DBA Filing Review: Pricing starts at $99 + state fee. Best if you're looking for the most popular DBA filing service available.