What is a DBA?
DBA stands for "doing business as" and is used by both individuals and existing companies when they want to do business under a name different from their personal name or already existing business name. DBA's are also sometimes called a "fictitious name" or "fictitious name certificate".
For example, if your name is Jane Doe and you wanted to start a small tutoring company and didn't want to form a business entity other than a sole proprietorship, you could get a DBA so you could transact under the name Jane's Tutoring.
What is important to remember is that having a DBA is not the same thing as having a limited liability company or corporation. A DBA also does not, by itself, give you any personal liability protection.