Delaware LLC Name Search

Check if your business name is available in Delaware before you file, then see Delaware's LLC naming rules, fees and filing requirements

Delaware
Filing Fee
$110
Certificate of Formation
Annual Tax
$400
Due by June 1 each year, for the previous year
Name Reservation
$75
Holds a name for 120 days

How Much Does an LLC Cost in Delaware?

Filing your Certificate of Formation in Delaware costs $110. After that, the annual tax costs $400 a year and is due by June 1 each year, for the previous year.

  • Certificate of Formation

    When you file to form the LLC. Source →

    $110

  • Annual Tax

    Due by June 1 each year, for the previous year. Delaware LLCs don’t file an annual report, just this flat tax. It rose from $300 in 2026, and paying late adds a $200 penalty plus interest. Source →

    $400

  • Name reservationOptional

    Holds a name for 120 days. Source →

    $75

  • Trade nameOptional

    Only if you do business under a name other than the LLC’s legal name. Source →

    $25

Checked against official Delaware sources on October 23, 2026. Fees change, so confirm with the state before you file.

LLC Requirements in Delaware

Formation Requirements

Basic Requirements

  • Operating Agreement (required)
  • Federal Tax ID (EIN)
  • Business Licenses (if applicable)

Registered Agent

Delaware requires all LLCs to maintain a registered agent in the state.

Faster Processing

Expedited formation costs $50 for 24 hours, $100 for same day, $500 for 2 hours or $1,000 for 1 hour.

Source →

Contact the Delaware Business Filing Office

Search LLC Name isn’t a government website. For an official answer about a name or a filing, contact the state office directly.

Contact Details

Fax

302-739-3812

Address Information

Mailing Address

PO Box 898, Dover, DE 19903

Physical Address

401 Federal Street – Suite 4, Dover, DE 19901

Official Delaware Resources

Delaware LLC Name Search FAQ

Enter the name in the search at the top of this page to open Delaware’s official business entity search. Search close variations too: Delaware law requires a new LLC name to be distinguishable on the records of the Secretary of State (6 Del. C. § 18-102). A clear search is a good sign, but the state makes the final call when it reviews your filing.

It must include “Limited Liability Company” or an abbreviation such as “LLC” or “L.L.C.”. Delaware law requires a new LLC name to be distinguishable on the records of the Secretary of State (6 Del. C. § 18-102). Words like Bank, Insurance or Trust usually need approval from another agency.

A Delaware name reservation costs $75 and holds the name for 120 days. You can reserve it again for $75.

Filing your Certificate of Formation in Delaware costs $110. After that, the annual tax costs $400 a year and is due by June 1 each year, for the previous year.

Yes, Delaware requires every LLC to keep a registered agent in the state who can receive legal documents for the business.

Delaware requires an annual tax ($400), due by June 1 each year, for the previous year. You also need to keep a registered agent in the state.

Since February 2026, trade names are registered statewide with the Division of Revenue for $25 instead of with the county. You need a Delaware business license to register one.

LLC Name Search in Other States