How to Search for DBAs and Fictitious Names: Complete 50-State Guide

DBA (Doing Business As) registrations—also called fictitious names, assumed names, or trade names—allow businesses to operate under names different from their legal entity names. For lenders, underwriters, and business researchers, searching DBAs is essential for complete entity verification and risk assessment. This comprehensive guide covers how to search DBA registrations across all 50 states.

22 min read
For lenders & researchers
50-state coverage

What is a DBA/Fictitious Name?

A DBA (Doing Business As) registration allows a legally formed business entity to operate under a name different from its official registered name. These registrations are also called fictitious names, assumed names, trade names, or business names, depending on the state.

Example

Legal Entity Name: Smith Holdings, LLC

DBA/Trade Name: Smith's Coffee Shop

The LLC operates a retail coffee business under "Smith's Coffee Shop" while maintaining its legal entity name "Smith Holdings, LLC" for official filings and contracts.

Key Terminology by State

DBA (Doing Business As)

Used in: California, Texas, Florida, Illinois, and many others

Fictitious Name

Used in: Georgia, Pennsylvania, Ohio, Michigan

Assumed Name

Used in: Texas, Minnesota, Tennessee

Trade Name

Used in: New York, New Jersey, Massachusetts

Important Note

While the terminology varies, the concept is the same: a registration that allows a business to operate under a name different from its legal entity name. Always check your specific state's terminology when searching.

Why DBA Searches Matter

DBA searches are critical for complete business verification because they reveal the full scope of a company's operations and business identities. Missing a DBA registration can lead to incomplete due diligence and potential risk exposure.

For Lenders and Underwriters

Complete Entity Verification

A business may operate multiple retail locations or service divisions under different DBAs while maintaining one legal entity. Understanding all operating names provides a complete picture of the business operations.

UCC Lien Identification

Some lenders file UCC-1 financing statements under a business's DBA name rather than the legal entity name. Comprehensive DBA searches ensure you identify all existing liens and security interests.

Revenue Verification

Bank statements and financial records may show transactions under DBA names. Knowing all registered DBAs helps verify revenue sources and business operations match the entity you're evaluating.

Fraud Detection

Undisclosed DBAs can indicate attempts to hide business activities, operate without proper registration, or create confusion about business ownership and operations.

For Business Owners and Researchers

  • Name Availability: Check if your desired business name is already registered as a DBA before filing
  • Competitive Research: Identify competitors and understand market landscape in your industry
  • Ownership Investigation: Discover who owns a business operating under a trade name
  • Compliance Verification: Ensure your own DBAs are current and properly registered

State-by-State DBA Filing Guide

This section provides key details for major states. For complete state-by-state information, use our interactive state map to access each state's official database.

California - County-Level Filing

Filing Location: County Clerk's office in each county where business operates

Terminology: Fictitious Business Name (FBN)

Cost: $10-$50 per county (varies by county)

Renewal: Every 5 years

Search: Each county maintains its own database; must search individual county websites

Publication: Must publish in approved newspaper within 30 days of filing

→ Read our complete California DBA guide

Texas - County-Level Filing

Filing Location: County Clerk's office

Terminology: Assumed Name Certificate (DBA)

Cost: Approximately $25-50 per county

Renewal: Every 10 years

Search: County-by-county search required; some counties offer online databases

Additional: Must also file with Texas Secretary of State for certain entity types

Florida - State-Level Filing

Filing Location: Florida Department of State, Division of Corporations

Terminology: Fictitious Name Registration

Cost: $50

Renewal: Every 5 years

Search: Centralized state database (Sunbiz.org)

Benefit: Statewide protection; searchable in one location

New York - Mixed Filing

Filing Location: Varies by entity type

Corporations: File Certificate of Assumed Name with NY Department of State

Partnerships/Sole Proprietors: File with county clerk

Terminology: Certificate of Assumed Name or DBA

Cost: $25-100 depending on entity type and jurisdiction

Publication: Required in some cases (especially LLCs)

Delaware - State-Level Filing

Filing Location: Delaware Division of Corporations

Terminology: Trade Name Registration

Cost: $25

Renewal: Every 5 years

Search: Searchable through Delaware business entity database

→ Read our Delaware search guide

Illinois - County-Level Filing

Filing Location: County Clerk's office

Terminology: Assumed Business Name

Cost: Approximately $5-25 per county

Renewal: Every 5 years

Search: Must search individual county databases

Publication: Required in local newspaper

Access All 50 State Databases Instantly

Our interactive map provides instant access to official state DBA and business entity databases for all 50 states. Save time searching multiple jurisdictions with one-click access.

Access State Databases

Common DBA Search Challenges and Solutions

Challenge: Multiple County Searches Required

In county-filing states, businesses with multiple locations may have DBAs registered in different counties. There's often no centralized state database.

Solutions:

  • Identify all counties where the business operates based on known addresses
  • Search the business's primary county first, then expand to adjacent counties
  • Use professional tools like our Chrome extension for efficient multi-jurisdiction searches
  • Check bank statements for business locations that might reveal additional operating counties

Challenge: Inconsistent Search Interfaces

Each state and county has different database systems with varying search capabilities and user interfaces.

Solutions:

  • Start with broad searches then narrow down
  • Learn each jurisdiction's specific search syntax (wildcards, exact match, etc.)
  • Try both business name and owner name searches
  • Use advanced search options when available

Challenge: Expired or Abandoned DBAs

DBAs expire after a set period (typically 5 years). Businesses may abandon DBAs without formally canceling them, or continue operating under expired registrations.

Solutions:

  • Always check the expiration date and current status
  • Search for both active and expired registrations
  • Contact the business directly to verify current DBA usage
  • Check business websites, marketing materials, and bank accounts for names actually in use

Challenge: Name Variations and Misspellings

DBAs may be registered with slight variations in spelling, punctuation, or formatting compared to how the business actually operates.

Solutions:

  • Try multiple search variations (with/without apostrophes, hyphens, "&" vs "and")
  • Use partial name searches when available
  • Search phonetically similar names
  • Check common abbreviations and acronyms

Challenge: Limited Historical Data

Some databases only show currently active DBAs and don't maintain historical records of expired or withdrawn registrations.

Solutions:

  • Request historical records directly from the filing office
  • Check archived websites using Internet Archive
  • Review old business licenses and permits
  • Consult public records for business litigation that may reference old DBAs

Challenge: No Online Database Available

Some smaller counties or jurisdictions don't have online searchable databases.

Solutions:

  • Contact the county clerk's office directly by phone or email
  • Submit written records requests
  • Visit the office in person if local
  • Use third-party public records services (verify accuracy)

Red Flags in DBA Searches

When conducting due diligence, certain DBA-related findings should raise concerns and warrant further investigation:

Undisclosed DBAs

The business operates under names not disclosed in loan applications or business documentation.

Why it matters: May indicate hidden business activities, unreported revenue streams, or attempts to obscure business operations. Requires immediate clarification.

Expired DBA Still in Use

Business continues operating under a DBA that has expired and not been renewed.

Why it matters: Indicates poor compliance practices. May void contracts, cause legal disputes, or signal broader operational issues. Some states impose penalties.

Multiple Similar DBAs

Multiple DBAs registered with only slight variations in name or spelling.

Why it matters: Could indicate attempts to confuse creditors, avoid liens, or operate multiple business identities. May be legitimate (rebranding) but requires verification.

DBA Ownership Mismatch

DBA is registered to a different entity or individual than disclosed in business documentation.

Why it matters: May reveal undisclosed owners, partners, or affiliated entities. Could indicate structural changes, asset protection schemes, or ownership disputes.

Frequent DBA Changes

Business frequently registers new DBAs or withdraws old ones over short periods.

Why it matters: May indicate business instability, attempts to avoid negative reviews or reputation, or efforts to distance from past business problems.

No DBA Found Despite Trade Name Use

Business operates under a trade name but no DBA registration can be located.

Why it matters: Violation of state registration requirements. May indicate deliberate non-compliance, poor legal counsel, or unregistered/unlicensed operations.

Best Practice: When red flags appear, document them thoroughly and request written explanations from the business. Consider requiring DBA renewal or registration as a condition of approval for lending transactions.

Professional Tools for Multi-State DBA Research

For professionals conducting regular DBA searches across multiple jurisdictions, efficiency and accuracy are critical. Manual searches across dozens of different county and state websites can be time-consuming and error-prone.

Proof of Good Standing Chrome Extension

Access all 50 state databases—including Secretary of State business entity searches and many state-level DBA databases—with one click. Perfect for lenders, underwriters, and researchers who need fast, reliable access to official records.

Key Benefits:

  • Instant access to 50+ state databases without bookmarking
  • Always-updated links to official government sources
  • Works seamlessly with your existing workflow
  • Search both business entities and UCC filings

Perfect For:

  • Commercial lenders and underwriters
  • Due diligence researchers
  • Legal compliance teams
  • Business verification services
  • Anyone conducting regular multi-state searches

Alternative Research Methods

County Clerk Offices: Direct contact for jurisdictions without online databases; may charge search fees
Third-Party Services: Commercial public records services aggregate data but may not have real-time updates or complete county coverage
Legal Counsel: For complex multi-jurisdictional searches, local attorneys may have better access to county records

Frequently Asked Questions

Is a DBA the same as an LLC or Corporation?

No. A DBA is NOT a legal entity. It's simply a registration that allows an already-formed legal entity (LLC, Corporation, etc.) to operate under a different name.

Example: "Smith Holdings, LLC" (the legal entity) can register a DBA called "Joe's Coffee Shop" to operate a retail business. The LLC still owns everything and has legal liability—the DBA is just a name for customer-facing operations.

Do I need to register a DBA if I use my legal entity name?

Generally no. If you operate exclusively under your legal entity name (e.g., "ABC Services, LLC"), a DBA registration is typically not required.

However, if you want to operate under ANY name different from your legal entity name—even slightly different—most states require a DBA registration. Check your state's specific requirements.

Can two businesses have the same DBA in the same state?

It depends on the jurisdiction:

  • State-level filing: Usually no—DBAs are exclusive within the state
  • County-level filing: Maybe—two businesses in different counties might use the same DBA since there's no statewide database

Even if allowed, using a DBA identical or confusingly similar to another business may create trademark issues or unfair competition claims.

How long does a DBA registration last?

DBA registration periods vary by state:

  • 5 years: Most common (California, Florida, Delaware, Illinois, etc.)
  • 10 years: Texas, Virginia
  • Until withdrawn: Some states have no automatic expiration

Always check the expiration date on the registration and set reminders to renew before it expires. Operating under an expired DBA can void contracts and cause legal issues.

What happens if I operate under a DBA without registering it?

Operating without proper DBA registration can result in:

  • Fines and penalties: Many states impose monetary penalties
  • Contract invalidity: Contracts signed under an unregistered name may be unenforceable
  • Inability to sue: Some states prohibit unregistered businesses from bringing lawsuits
  • Banking problems: Banks require proper DBA documentation to add trade names to accounts
  • Loss of trademark rights: Unregistered use may weaken trademark claims
How do I search for DBAs in multiple counties?

For comprehensive multi-county searches:

  1. Identify all counties where the business operates (check addresses, locations, licenses)
  2. Visit each county clerk's website and search their DBA database individually
  3. Keep detailed notes of which counties you searched and when
  4. Consider using professional tools to streamline access to multiple databases

There's typically no single database that searches all counties in a state, so thoroughness requires searching each jurisdiction separately.

Do sole proprietors need to register DBAs?

Yes, if operating under any name other than the owner's legal name.

Example: John Smith operating as "John Smith" doesn't need a DBA. But "John Smith" operating as "Smith's Plumbing" DOES need a DBA registration.

Some states have exceptions for professionals (doctors, lawyers) using their name with their profession (e.g., "John Smith, Attorney at Law"), but check your specific state requirements.

What's the difference between a DBA and a trademark?

These are completely different legal protections:

  • DBA: State or county registration that allows you to operate under a business name. Provides minimal name protection, mainly administrative.
  • Trademark: Federal (USPTO) or state registration that protects your brand name, logo, or slogan from being used by others in commerce. Provides nationwide protection.

A DBA does NOT protect your name from being used by others. For brand protection, you need a trademark registration.

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