Delaware DBA (Doing Business As) Guide (2026)
In Delaware, Trade Name / DBA registration is handled by Delaware One Stop (the Division of Revenue and Division of Corporations) under Title 6, Chapter 31 - NOT the Clerk of the Peace or any county office.
The one thing to knowTrade Name / DBA registration is handled by Delaware One Stop, not the Clerk of the Peace or any county office.
The process
- Go to Delaware One Stop
Trade Name / DBA registration is handled by Delaware One Stop, covering the Division of Revenue and Division of Corporations.
- Register your Trade Name
Register under Title 6, Chapter 31 through onestop.delaware.gov.
- Confirm the fee
Call to confirm the current filing fee.
DBA filing by county — all 3 Delaware counties
Trade Name / DBA registration is handled statewide through Delaware One Stop, not by the Clerk of the Peace or any county office.
| County | Where to file |
|---|---|
| Kent County | Filed with the state (not the county) |
| New Castle County | Filed with the state (not the county) |
| Sussex County | Filed with the state (not the county) |
What to bring
- Your Trade Name / DBA
- Business owner details
- Access to onestop.delaware.gov
- The current fee (call to confirm)
Frequently asked questions
Where do I register a DBA in Delaware?
Trade Name / DBA registration is handled by Delaware One Stop (Division of Revenue and Division of Corporations).
Can I file at the Clerk of the Peace?
No. DBA registration is not handled by the Clerk of the Peace or any county office.
What law governs Trade Names?
Trade Name registration falls under Title 6, Chapter 31.
How much does it cost?
Call to confirm the current filing fee.