When operating a sole proprietorship under a different name, what document must be filed?

When a sole proprietor conducts business under a name that differs from their legal name, it is essential to file a fictitious name certificate, often referred to as a "doing business as" (DBA) registration. This document serves to inform the public of the true identity behind the business name being used.

Filing this certificate is crucial for legal purposes, allowing the owner to open bank accounts, enter contracts, and operate under the assumed name. It also provides transparency and prevents confusion in the marketplace by clearly identifying the business owner.

The other options, such as a business license, partnership agreement, and corporate charter, serve different purposes. A business license may be required for operating legally in certain jurisdictions but does not specifically address the use of a fictitious name. A partnership agreement is applicable only in partnerships and does not pertain to sole proprietorships. A corporate charter is necessary for forming a corporation, not for a sole proprietorship operating under an assumed name.