Connecticut Fictitious Name Registration & Renewal

Registration requirements for Connecticut business entities

Business entities that plan to use a name other than their legal business name may need to register an assumed name. Assumed name registration can take place at the state, local, or state and local levels of government. State specific registration information is available below.

Initial Application for Registration

Agency Fee:


Is registration mandatory?:

Trade name registration is required for LLCs, corporations, and other entities that desire a "doing business as" name. General partnerships that desire a business name that does not include any surnames of the owners and sole proprietorships that desire a business name that does not include their surname are also required to register a trade name.

County Level Filing:

Not required at the county level.

Does registration prevent others from using the name I choose?:

Trade name registration does not offer name protection.

  • DBAs are filed in the town where business is to be conducted or transacted.
  • Contact your town clerk for forms and instructions on filing.
  • In general, the form will require the desired trade name and the registrar's name and address.
  • You must file the original with the town clerk.
  • Publication of registration is not required in Connecticut.

Renewal Filing

Not required

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