Your official filing path

Authority: Delaware Division of RevenueSource: onestop.delaware.gov official record · retrieved 2026-09-05

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Beginning February 2, 2026, the Delaware Division of Revenue will manage a statewide Trade Name (DBA) registry through Delaware One Stop.

Official filing path: https://onestop.delaware.gov/Operate_TradeNamesSource: onestop.delaware.gov official record · retrieved 2026-09-05

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

First-time filing fee: The fee is a one-time $25 charge per trade name.Source: onestop.delaware.gov official record · retrieved 2026-09-05

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The fee is a one-time $25 charge per trade name.

Check existing names first: Search the official Delaware name records → Covers: Whether you are a business owner verifying your name is available, or are searching for a specific business, we invite you to search through the database.Source: revenue.delaware.gov official record · retrieved 2026-09-06

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Welcome to the Trade, Business, and Fictitious Names Search for the State of Delaware.