Which document must corporations submit when using an assumed name?

The correct document that corporations must submit when using an assumed name is the assumed name certificate from the county clerk and Secretary of State. This certificate is necessary because it legally registers the assumed name, making it official and allowing the corporation to operate under that name. The process involves filing with the appropriate county authority to ensure that there are no issues or conflicts with naming conventions and to provide transparency for consumers and other businesses.

This requirement helps maintain clarity in business operations; it allows the public to know who they are engaging with, as the assumed name may not reflect the corporation's legal name. Additionally, obtaining the assumed name certificate is a vital step in compliance with state laws governing business operations and enhances accountability.

Other documents such as a certificate of authority, business partnership agreement, or shareholder registry do not serve the same purpose in registering an assumed name. They are relevant for different legal or operational contexts within corporate governance but do not specifically pertain to the use of an assumed name in the manner required by Texas law.