IN-PERSON SERVICES FOR THE OFFICE OF THE TEXAS SECRETARY OF STATE HAVE MOVED TO 400 W. 15TH STREET. PARKING DETAILS AND MORE INFORMATION
Apostille/Authentication services now available by appointment on Tuesdays, Wednesdays and Thursdays. Walk-in service available Mondays and Fridays. More Information
Election Notice:  Early voting for the March 3, 2026 Primary Election runs from Tuesday, February 17, 2026 – Friday, February 27, 2026  |  Last day to apply for ballot by mail (received, not postmarked) is Friday, February 20, 2026  |  ID requirements for voting in person  |  ID requirements for voting by mail  |  Visit VoteTexas.gov for more election information

Form 503 — Instructions for Assumed Name Certificate

Form 503 (PDF)  Instructions (PDF)


The attached form is drafted to meet minimal statutory filing requirements pursuant to the relevant code provisions. This form and the information provided are not substitutes for the advice and services of an attorney and tax specialist.

Commentary

A domestic or foreign corporation, limited liability company, limited partnership, limited liability partnership, or other foreign filing entity that regularly conducts business or renders a professional service in this state under a name other than its legal name (the name stated in its certificate of formation or comparable document) must file an assumed name certificate with the secretary of state. (Texas Business & Commerce Code [TBCC] § 71.103).

Effect of Filing: The effect of filing is to give notice to the public that the entity is conducting business under that name. The filing of an assumed name shall not constitute actual use of the assumed name for determining priority of name; nor does the filing of assumed name give the registrant any right to use the name when contrary to the common law or statutory right of unfair competition, unfair trade practices, common law copyright or similar law (TBCC § 71.157). Since the filing is a notice filing, the secretary of state does not have the authority to review the name of the certificate to determine if the filing conflicts with another name on file with this office.

Changes to Information: There is no procedure for an amendment to or correction of an assumed name certificate. If there is a material change in the information on the certificate, a new certificate should be filed (TBCC § 71.152). The new certificate should be filed within 60 days after the occurrence of the events which necessitate the filing. An event that causes the information contained in a certificate to become materially misleading includes a change in the name or form of business of the assumed name registrant.

Duration: The assumed name certificate shall be effective for a term not to exceed ten years from the date the certificate is filed and may be renewed by filing a new certificate within six months of the expiration of the original certificate (TBCC § 71.151). A registrant may abandon the assumed name certificate before the expiration of the period of duration by filing an abandonment of the certificate (Form 504 (PDF)).

Noncompliance: The TBCC in sections 71.201 through 71.203 provides both civil and criminal penalties for failure to file the assumed name certificate.

Legislative Change: HB 3609, effective September 1, 2019, was enacted by the 86th Legislature and amended chapter 71 of the Business & Commerce Code to eliminate the county-level filing requirement for a corporation, limited liability company, limited partnership, limited liability partnership, or other foreign filing entity that conducts business under an assumed name. 

Instructions for Form

Revised 08/19