If you want your company to do business with a secondardy name, you have to register that name with the state government. This secondard name is known as a DBA—an abbreviation for "doing business as." A DBA is also known as a "fictitious business name," "trade name," or "assumed name."
Once your DBA registration is complete, your company can start using the assumed name to open bank accounts, write checks, and enter contracts. Sole proprietorships commonly use DBAs because a sole proprietorship's offical, legal name is simply the name of the owner. So, instead of doing business as John Doe, a plumber could do business as Quick Plumbing Company.
All types of businesses can use a DBA, not just sole proprietorships. LLCs, corporations, and partnerships can all file to get a DBA. A company can have more than one trade name.
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