DC posts TN-4 form for amending trade-name registrations
Update your registered trade name and filing information with the TN-4 Trade Name Amendment form from the DC government. Available on DC.gov.
Sophie McAlister ·

The District of Columbia government has posted the TN-4 Trade Name Amendment form on DC.gov, providing a formal option for businesses to amend previously filed trade-name records. The page makes the form available to any business or individual who has registered a trade name in the District and needs to update registration details.
The online posting includes the amendment form and basic filing instructions on the official District website. The TN-4 page is positioned as the official resource for trade-name changes and is intended for owners who must correct, update, or otherwise alter the information associated with an existing trade-name registration.
What the form is for
The TN-4 Trade Name Amendment form is designed for use after an initial trade-name registration has been submitted. It is the document the District directs registrants to use when making formal changes to a previously recorded trade name. The District’s page hosts the form and guidance for completing it.
Who should use it
Owners of trade names, sole proprietors, and small businesses that operate under a name other than the legal owner’s name should consult the TN-4 page when they need to change registered details. The District presents the form as the official mechanism for keeping trade-name records current with local authorities.
The District’s posting sits on DC.gov, the municipal government website, and acts as the authoritative reference for this specific business filing task. The page consolidates the relevant document and basic instructions so that District-registered entities can access and submit the amendment according to local procedures.
Because trade-name registrations are public records, keeping them accurate can affect contracts, banking, and compliance with local rules for doing business in the District. The District’s TN-4 page aims to make that administrative step straightforward for local entrepreneurs and established businesses alike.
Look for updates on DC.gov if the District revises filing requirements, adds online filing options, or changes submission pathways for trade-name amendments. Businesses should consult the TN-4 page before making or relying on official changes to a recorded trade name.