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DBA Filing in Delaware: Cost, Steps & How to File

If you're planning to file a DBA (fictitious business name) in Delaware, the process is more paperwork than it needs to be — but it's paperwork with a predictable pattern. This guide walks through the Delaware steps in plain English, with real fee amounts and the specific state office to file with.

Typical cost

$10–$150

Timeline

1–30 days

Renewal

Every 5 years in most states (California, New York, Texas)

Who needs it

sole proprietors, partnerships, and LLCs operating under a name different from the legal registered name

Steps to file a DBA (fictitious business name) in Delaware

Step 1: Search the county's DBA database to confirm the name isn't already taken
Step 2: File a DBA / fictitious business name (FBN) statement at the county clerk's office
Step 3: Pay the county filing fee
Step 4: In some states (California, Georgia, others), publish the DBA in a local newspaper for 4 consecutive weeks
Step 5: Return the newspaper's proof of publication to the county
Step 6: Use the DBA on all business marketing, receipts, and bank accounts

Required documents

Government-issued ID
Legal business name (if an entity, not sole prop)
Business address

Where to file in Delaware

Business filings: https://corp.delaware.gov
Secretary of State: https://sos.delaware.gov
Tax authority: https://revenue.delaware.gov
Labor/workforce: https://labor.delaware.gov

Heads up: Once you've filed, keep a copy of your dba filing in your business records. Delaware agencies periodically request proof during audits, tax filings, or when you apply for related permits, and reproducing a lost filing costs more than the original.

Related permits in Delaware

LLC Formation in Delaware Business License in Delaware

Frequently asked questions

How much does a dba filing cost in Delaware?

Typical cost ranges from $10–$150. The exact fee depends on your specific business type, city, and any expedited processing you choose.

How long does it take to get a dba filing in Delaware?

Most Delaware applications complete in 1–30 days. Same-day or next-day processing is often available for an added fee at the state level.

Do I need a dba filing if I'm just starting a home business in Delaware?

In most cases, yes — even home-based businesses in Delaware are subject to the same state filing rules. Local rules (city and county) may add a home occupation permit on top.

This page reflects general Delaware filing rules as of 2026. Fees and processing times change; verify the current amounts with the linked state agency before filing.