text: is it necessary to register urls with the board of equalization if a fictitious business name is being used? a business is required by law to register with the board of equalization its dba (doing business as) name. if a business merchant desires to make its presence in the world wide web, is it required to register url addresses with the county assesor's office and board of equalization? no, the url is just an address, like your street address but then on the internet.  if you use the url as a name in your marketing to refer to your business (not just to point to your website), then you need to register the url.  why don't you ask them, then you'll know for sure.