Add or change trade names

To register a trade name or make changes to an existing trade name, you must:

• submit a new Master Business Application.
• AND
• pay the appropriate fees. In addition to the $15 Master Business Application process fee, there is a $5 fee for each name registered.

How to file a Master Business Application

There are three ways to file the Master Business Application:

• Online: File online using a MasterCard, Visa, or American Express credit or debit card (gift cards cannot be used). Filing online isn’t recommended for some businesses. See the list of businesses that shouldn’t file a Master Business Application online for details.
• By mail: Complete the paper Master Business Application and mail it to:
  
  Master License Service
  Department of Licensing
  PO Box 9034
  Olympia, WA 98507-9034
• In person: File in person at a business licensing office.

For more information about filing your application, see File a Master Business Application.