The Arizona Secretary of State supplemented its old fashioned hard copy trade name application pdf form and with an online electronic trade name application.  The fee remains $10.  The Arizona Secretary of State says the following about Arizona trade names:

“Filing a trade name registers a business name for public record. A trade name is similar to a ‘doing business as’ (‘DBA’) name, and is not legally required but is an acceptable business practice. A trade name does not grant exclusive rights to a business name, nor is a trade name similar to a corporation or limited liability company (‘LLC’).”

If your Arizona business is using a DBA that is different from the legal name under which the entity was formed, the business should register the DBA, aka trade name, with the Arizona Secretary of State.