Who needs a trade name (DBA) registration in Delaware?

Issued by Delaware Division of Revenue, through One Stop, at step 1 of 6 in the opening sequence: set up the business.

Every kind of business in Delaware

The Delaware table lists this for every kind of business.

Since February 2, 2026 trade names are filed once, statewide, in the Delaware Trade Name Registry on One Stop rather than with each county’s Prothonotary, with no notarization. Needed whenever the business trades under any name other than the owner’s legal name or the LLC’s registered name; a state business license is required to register.

Checked Oct 21, 2026 against the agency’s page.

Step 1 of 6: Set up the business

  1. Set up the business
  2. Register for tax
  3. Approve the space
  4. Get the permits for your kind of business
  5. Alcohol permits
  6. Before the first hire

Issued by Delaware Division of Revenue, through One Stop.

Sources and dates

One Stop trade name pages and FAQ; 6 Del. C. chapter 31 as amended by House Bill 40 and Senate Bill 291. Checked against the agency’s page on the date shown; cities add their own fees.

Questions about opening here.