How Do I Search for DBA Names in My County or State?

By Bill Stilwell · Last reviewed October 16, 2026

The short answer

DBA (“doing business as”) names are filed with the state, the county, the city, or more than one of these, depending on where you are. Before you file one or start using a public name, search those records for the same or a similar name. State business entity searches don’t always include county trade names, so a name can look clear at the state level and still be in use down the street.

What this means

The outline asks you to search county or local trade name records where required (8.2.2).

The U.S. Small Business Administration (SBA) says you may need to register a DBA with your state, county, or city, depending on your location. That also tells you where to search. In some places every DBA is in one state database. In others, each county keeps its own list, and you may need to search the county clerk’s site or call the office.

Example: a dog groomer plans to use “Happy Tails Grooming” in her county. (Made up for this page.) The state search shows nothing. The county clerk’s trade name index shows another groomer filed “Happy Tails Pet Grooming” three years ago, 10 miles away. That’s a name to skip.

Why it matters

Local confusion. Customers in the same area are the ones most likely to mix up two similar names.
Reviews and calls going to the wrong place. A same-name business nearby can get your reviews, and you can get their complaints.
Possible legal disputes. A business that used the name first in your area may have rights to it (see 8.3.2 Common-Law Trademark Use).
Filing problems. Some offices won’t accept a DBA that matches one already on file. Rules vary.

Who this applies to

Anyone who plans to use a public name that differs from their legal name, and anyone who wants to be sure their name isn’t already used locally. If your state keeps all DBAs in one statewide database, that one search may cover it.

How to do it

Find out where DBAs are filed in your state. Check your Secretary of State site first. It will usually say whether counties or cities handle them.
Search the state trade name database if there is one.
Search the county clerk or recorder’s trade name records for your county. If you’ll serve nearby counties, search those too.
Check your city’s business license or trade name records if your city keeps them.
Search exact matches, close spellings, and sound-alike versions.
If an office has no online search, call or email and ask how to check.
Save dated screenshots or notes of each search.
If you find a close match in your service area, pick a different name.

What proof to keep

Dated screenshots or written notes of each search, with the office name
A list of the counties and cities you searched

Keep these with your DBA filing and formation records.

Common mistakes

Searching only the state. In many places, county records are where the conflict shows up.
Searching only your home county. If you serve several counties, a business in the next one over is still your problem.
Ignoring expired filings. The business may still operate under that name even if its filing lapsed. Check the web and maps too (see 8.2.5 Map, Listing, and Industry Name Search).
Assuming a filed DBA gives you rights against others. The SBA says a DBA doesn’t give legal protection by itself.

When to get help from a pro

If you find a close match and still want the name, talk to a business or trademark attorney first. Ask:

Does the other business likely have rights to this name in my area?
What risk am I taking if I use a similar name?

Bill’s note

[Bill: add a short story or opinion. For example, a client who found a same-name business in the next county after launching, or how county records worked where SiteSmarty is based.]

How I did this for SiteSmarty

[Date I did this:]
[What I actually did, step by step: which state, county, and city records I searched]
[What it cost and how long it took:]
[What surprised me or what I’d do differently:]
[Screenshot or photo to add, with private info blurred: the trade name search results]
[Result so far:]

Questions people ask

Are DBA records kept by the state or the county? It depends on the state. Some keep them statewide, some leave it to counties or cities, and some use both. Your Secretary of State site usually explains it.

Can two businesses file the same DBA? In some places, yes, because filing offices don’t always check for conflicts. That’s why you should search before you file.

Why does a local DBA search matter if I’m forming an LLC? Your limited liability company (LLC) name is checked at the state level. A local business using a similar trade name may not show up there, and customers can still confuse you.

What if I find a match in another county? If you won’t serve that county and the businesses are different, it may be less of a concern. If you overlap in customers or area, choose another name.

Audit check

Question: Were state, county, and city trade name records searched for the public name in every area the business serves?
Pass looks like: Dated search records from each office that keeps trade names in the service area, with no close matches in the same field.
Fail looks like: Only a state entity search. No county search. A close match nearby that was ignored.
Evidence to collect: Screenshots or notes from each search and the list of offices checked.

Where this fits

Do this first: 8.2.1 State Business Name Search

Do this next: 8.2.4 Social Handle Search

Sources

U.S. Small Business Administration, "Choose your business name" (checked October 16, 2026)

This page explains general rules and Bill's own experience. It is not legal, tax, or insurance advice. Talk to a qualified professional about your situation.