Filing Guide

Delaware · checked 2026-09-05 · Source-backed guide

Delaware trade name filing guide

All covered entity types

Authority and fee for this entity route. Choose your entity below before filing.

Authority: Delaware Division of RevenueSource: onestop.delaware.gov official record · retrieved
Supporting excerptBeginning February 2, 2026, the Delaware Division of Revenue will manage a statewide Trade Name (DBA) registry through Delaware One Stop.
Official fee: The fee is a one-time $25 charge per trade name.Source: onestop.delaware.gov official record · retrieved
Supporting excerptThe fee is a one-time $25 charge per trade name.

Use the official filing path →Source: onestop.delaware.gov official record · retrieved

Supporting excerptRegistration of new DBAs is now available online and is managed statewide by the DOR rather than by individual county Prothonotary Offices.

What Delaware calls a DBA

The official term documented here is trade name.

Source: onestop.delaware.gov official record · retrieved
Supporting excerptA trade name (often referred to as a "DBA" or "Doing Business As") is a name under which a business operates that is different from its legal registered name.

Delaware moved new trade-name registrations to the Division of Revenue’s statewide One Stop registry on February 2, 2026. The current filing route replaces the individual county Prothonotary offices for new registrations.

Official sources and supporting excerptsSource: onestop.delaware.gov official record · retrieved
  • Beginning February 2, 2026, the Delaware Division of Revenue will manage a statewide Trade Name (DBA) registry through Delaware One Stop.
  • Registration of new DBAs is now available online and is managed statewide by the DOR rather than by individual county Prothonotary Offices.

A trade name is the name used for business when it differs from the legal registered name. Before registering one, confirm that the business has the Division of Revenue license required by the current workflow.

Official sources and supporting excerptsSource: onestop.delaware.gov official record · retrieved
  • A trade name (often referred to as a "DBA" or "Doing Business As") is a name under which a business operates that is different from its legal registered name.
  • To register a trade name in Delaware, your business must be licensed with the Delaware Division of Revenue. You can meet this requirement in one of two ways: - Your business operates in Delaware and already has a valid Delaware Business License issued by the Division of Revenue. - Your business does not operate in or does not have a business licensing requirement in Delaware…a special license for non-income tax filing or out of-state businesses. - This license costs $25/year and must be renewed annually to keep your trade name active. - A single Trade Name–Only License can cover multiple trade names. - If you already have a standard Delaware Business License, you do not need this license.

A name previously recorded with the Superior Court remains recognized without a new filing. Adding it to the Division of Revenue registry is optional and can be free when the original court filing number is supplied; the associated business-license condition still applies.

Official sources and supporting excerptsSource: onestop.delaware.gov official record · retrieved
  • If you previously recorded a Trade Name with the Delaware Superior Court, no new action is required to remain recognized. If you want your trade name to appear in the DOR registry and to obtain a DOR Tradename Certificate, you may optionally re-register it in One Stop at no cost by providing your Superior Court filing number. A valid Delaware business license is still required to register a trade name.

Rules by legal entity type

Jump to the entity that already exists. Each section keeps its own authority, fee, exceptions, and official evidence.

All covered entity types

Required: No universal yes/no answer is confirmed. Read the documented applicability below.
Authority: Delaware Division of RevenueSource: onestop.delaware.gov official record · retrieved
Supporting excerptBeginning February 2, 2026, the Delaware Division of Revenue will manage a statewide Trade Name (DBA) registry through Delaware One Stop.
When this route applies: To register a trade name in Delaware, your business must be licensed with the Delaware Division of Revenue.Source: onestop.delaware.gov official record · retrieved
Supporting excerptTo register a trade name in Delaware, your business must be licensed with the Delaware Division of Revenue. You can meet this requirement in one of two ways: - Your business operates in Delaware and already has a valid Delaware Business License issued by the Division of Revenue. - Your business does not operate in or does not have a business licensing requirement in Delaware…a special license for non-income tax filing or out of-state businesses. - This license costs $25/year and must be renewed annually to keep your trade name active. - A single Trade Name–Only License can cover multiple trade names. - If you already have a standard Delaware Business License, you do not need this license.
Official form: Not confirmed in this guide.
Form destination: Not confirmed in this guide.
Online filing link: https://onestop.delaware.gov/Operate_TradeNamesSource: onestop.delaware.gov official record · retrieved
Supporting excerptRegistration of new DBAs is now available online and is managed statewide by the DOR rather than by individual county Prothonotary Offices.
Official fee: The fee is a one-time $25 charge per trade name.Source: onestop.delaware.gov official record · retrieved
Supporting excerptThe fee is a one-time $25 charge per trade name.
Effective duration: Trade names themselves do not expire or renew.Source: onestop.delaware.gov official record · retrieved
Supporting excerptTrade names themselves do not expire or renew.
Renewal: Trade names themselves do not expire or renew. However, your underlying Delaware business license (or Trade Name–Only License) must remain active to keep your trade name in good standing.Source: onestop.delaware.gov official record · retrieved
Supporting excerptTrade names themselves do not expire or renew. However, your underlying Delaware business license (or Trade Name–Only License) must remain active to keep your trade name in good standing.
Changes or amendments: You can update your trade name details or terminate a trade name directly through Delaware One Stop.Source: onestop.delaware.gov official record · retrieved
Supporting excerptYou can update your trade name details or terminate a trade name directly through Delaware One Stop. Note: One Stop does not offer a direct transfer. To move a trade name to a different TPID, cancel it under the current TPID and re-register it under the new TPID (standard registration fee applies).
Abandonment or cancellation: You can update your trade name details or terminate a trade name directly through Delaware One Stop.Source: onestop.delaware.gov official record · retrieved
Supporting excerptYou can update your trade name details or terminate a trade name directly through Delaware One Stop.
Important exclusions: If you previously recorded a Trade Name with the Delaware Superior Court, no new action is required to remain recognized.Source: onestop.delaware.gov official record · retrieved
Supporting excerptIf you previously recorded a Trade Name with the Delaware Superior Court, no new action is required to remain recognized. If you want your trade name to appear in the DOR registry and to obtain a DOR Tradename Certificate, you may optionally re-register it in One Stop at no cost by providing your Superior Court filing number. A valid Delaware business license is still required to register a trade name.
Mail filing: Not confirmed in this guide.
In-person filing: Not confirmed in this guide.

How to file through the authority

Start at Delaware One Stop’s Register or Modify Trade Names page and select the registration action. New DBA registration is online and statewide, so this guide does not direct new filers to a county-court certificate.

Official sources and supporting excerptsSource: onestop.delaware.gov official record · retrieved
  • Registration of new DBAs is now available online and is managed statewide by the DOR rather than by individual county Prothonotary Offices.

Check the business-license prerequisite before beginning the registration. The trade-name charge is a one-time $25 per name. Keep that charge separate from any business-license obligations.

Official sources and supporting excerptsSource: onestop.delaware.gov official record · retrieved
  • The fee is a one-time $25 charge per trade name.
  • Trade names themselves do not expire or renew. However, your underlying Delaware business license (or Trade Name–Only License) must remain active to keep your trade name in good standing.
  • To register a trade name in Delaware, your business must be licensed with the Delaware Division of Revenue. You can meet this requirement in one of two ways: - Your business operates in Delaware and already has a valid Delaware Business License issued by the Division of Revenue. - Your business does not operate in or does not have a business licensing requirement in Delaware…a special license for non-income tax filing or out of-state businesses. - This license costs $25/year and must be renewed annually to keep your trade name active. - A single Trade Name–Only License can cover multiple trade names. - If you already have a standard Delaware Business License, you do not need this license.

For businesses that do not operate in Delaware or do not otherwise need a Delaware business license, the authority describes a Trade Name–Only License at $25 per year, renewed annually. One such license can cover multiple trade names. Businesses that already hold a standard Delaware business license do not need the additional license.

Official sources and supporting excerptsSource: onestop.delaware.gov official record · retrieved
  • To register a trade name in Delaware, your business must be licensed with the Delaware Division of Revenue. You can meet this requirement in one of two ways: - Your business operates in Delaware and already has a valid Delaware Business License issued by the Division of Revenue. - Your business does not operate in or does not have a business licensing requirement in Delaware…a special license for non-income tax filing or out of-state businesses. - This license costs $25/year and must be renewed annually to keep your trade name active. - A single Trade Name–Only License can cover multiple trade names. - If you already have a standard Delaware Business License, you do not need this license.

This guide does not collect filing information or submit an application for you.

Renewal, amendment, and abandonment

The trade name itself does not expire or have a renewal cycle. Its underlying Delaware business license or Trade Name–Only License must remain active, so a statement that the DBA has no renewal does not eliminate the license obligation.

Official sources and supporting excerptsSource: onestop.delaware.gov official record · retrieved
  • Trade names themselves do not expire or renew. However, your underlying Delaware business license (or Trade Name–Only License) must remain active to keep your trade name in good standing.

Use One Stop to update trade-name details or terminate a name. The authority says there is no direct transfer between taxpayer IDs: the name must be cancelled under the old ID and registered under the new one, with the standard registration fee applying.

Official sources and supporting excerptsSource: onestop.delaware.gov official record · retrieved
  • The fee is a one-time $25 charge per trade name.
  • You can update your trade name details or terminate a trade name directly through Delaware One Stop. Note: One Stop does not offer a direct transfer. To move a trade name to a different TPID, cancel it under the current TPID and re-register it under the new TPID (standard registration fee applies).
  • You can update your trade name details or terminate a trade name directly through Delaware One Stop.

Publication and notice

Publication could not be confirmed for all covered entity types. No requirement or exemption is asserted.

Next steps: self-file first

Choose the workflow that matches the record you actually hold: a new statewide registration, an optional addition of an older court record, or an update or termination of a name managed in One Stop. Confirm the license prerequisite and the relevant registration charge before paying.

Official sources and supporting excerptsSource: onestop.delaware.gov official record · retrieved
  • Registration of new DBAs is now available online and is managed statewide by the DOR rather than by individual county Prothonotary Offices.
  • The fee is a one-time $25 charge per trade name.
  • You can update your trade name details or terminate a trade name directly through Delaware One Stop. Note: One Stop does not offer a direct transfer. To move a trade name to a different TPID, cancel it under the current TPID and re-register it under the new TPID (standard registration fee applies).
  • To register a trade name in Delaware, your business must be licensed with the Delaware Division of Revenue. You can meet this requirement in one of two ways: - Your business operates in Delaware and already has a valid Delaware Business License issued by the Division of Revenue. - Your business does not operate in or does not have a business licensing requirement in Delaware…a special license for non-income tax filing or out of-state businesses. - This license costs $25/year and must be renewed annually to keep your trade name active. - A single Trade Name–Only License can cover multiple trade names. - If you already have a standard Delaware Business License, you do not need this license.
  • If you previously recorded a Trade Name with the Delaware Superior Court, no new action is required to remain recognized. If you want your trade name to appear in the DOR registry and to obtain a DOR Tradename Certificate, you may optionally re-register it in One Stop at no cost by providing your Superior Court filing number. A valid Delaware business license is still required to register a trade name.

Keep the trade-name record and the underlying business license together when checking ongoing status. The DBA’s lack of expiration does not replace the requirement to maintain the associated license.

Official sources and supporting excerptsSource: onestop.delaware.gov official record · retrieved
  • Trade names themselves do not expire or renew. However, your underlying Delaware business license (or Trade Name–Only License) must remain active to keep your trade name in good standing.

This guide cannot confirm a newspaper-publication step from the reviewed workflow. Check the official page before relying on a missing answer.

Paid help, if offered later, is optional. This independent guide does not submit filings or accept government fees.

Official sources

Source dates record retrieval, not a promise that every rule changed that day. How we research, verify, and handle missing information.