To file a DBA, submit a trade name application to the government office that handles business registrations in your area — usually your Secretary of State, county clerk, or city clerk — pay the filing fee, and, if you are in one of the handful of states that require it, publish a notice in a local newspaper after your filing is approved. Fees typically run between $20 and $50, though they range from about $10 to $150 depending on the jurisdiction.1U.S. Small Business Administration. Choose Your Business Name The whole process is one of the simpler business filings, but each step has rules worth getting right the first time.
When You Need to File
You need a DBA whenever your business operates under a name that differs from your legal name. For a sole proprietor, that means any name other than your full personal name. For an LLC or corporation, it means any name other than the one on your formation documents.2Legal Information Institute. Fictitious Business Name Most states require registration if you use a trade name, and operating under an unregistered one can block you from enforcing business contracts in court and cost you any priority if someone else files the same name first.1U.S. Small Business Administration. Choose Your Business Name
One boundary worth knowing before you file: a DBA is a public record linking a trade name to its owner. It does not create a separate legal entity, does not shield your personal assets, and does not give you exclusive rights to the name.3U.S. Small Business Administration. Choose a Business Structure Liability protection comes from forming an LLC or corporation; name ownership comes from a trademark registration. The DBA simply lets you operate, bank, and contract under the trade name.
Where to File
Where you register depends on your state. Some states handle DBA filings at the state level through the Secretary of State. Others require you to file with the county clerk in the county where your business operates, and a handful require city-level registration. A few states require both state and county filings. Roughly a dozen states have no formal DBA filing requirement at all. Check your Secretary of State website or county clerk’s office before you prepare anything, because the right office determines the form, the fee, and whether you will need to publish a notice later.1U.S. Small Business Administration. Choose Your Business Name
Prepare Your Application
Search for Name Availability
Before filing, search your local government’s business name database to confirm the name is not already on file. Many county clerks and Secretaries of State offer free online search tools. Your proposed name needs to be distinguishable from existing registrations. This search does not check federal trademarks, so if national name protection matters to you, search the U.S. Patent and Trademark Office database separately.
Avoid Restricted and Misleading Terms
Your DBA cannot include words that falsely suggest a particular business structure. Terms like “Inc.,” “LLC,” “Corp.,” or “Ltd.” are off-limits unless your business is actually organized as that type of entity. Many jurisdictions also restrict words tied to regulated industries, such as “bank,” “insurance,” “trust,” or “mortgage,” because those terms imply government oversight that a simple DBA does not provide. Using a restricted word without the required regulatory approval will get your application rejected.
Gather the Required Information
A typical application asks for:
- Your full legal name. For individuals, your personal name. For an LLC or corporation, the exact entity name from your formation documents.
- A business address. Most jurisdictions require a physical street address rather than a P.O. box.
- The proposed trade name you want to register.
- Business type: sole proprietor, partnership, LLC, or corporation.
- The date you first started using the trade name, or an indication that you have not yet begun operations.
- Names of all owners. Partnerships must list every partner.
Some jurisdictions require your application to be notarized before submission, especially for county filings submitted by mail. Confirm your local office’s requirements before you sign.
Submit and Pay
You can file online, by mail, or in person. Online portals are the fastest and produce immediate confirmation. Mail filings should include the original signed form plus any required copies. Filing fees range from roughly $10 to $150, with most jurisdictions charging between $20 and $50. Accepted payment methods commonly include credit cards, checks, and money orders.
Processing times vary. In-person filings are often processed on the spot, and the clerk will hand you a stamped or certified copy of your statement. Online and mail filings can take anywhere from one business day to several weeks. When your filing is approved, you receive an official copy that serves as proof of registration. Request multiple certified copies at the time of filing. Banks, licensing boards, and vendors may each need one, and ordering extras later means additional fees and wait times.
Publish the Notice (Only in Some States)
Only about seven states require newspaper publication after a DBA filing: California, Florida, Georgia, Illinois, Minnesota, Nebraska, and Pennsylvania. If your state is not on that list, skip this step.
In the states that do require it, you publish a notice in a newspaper of general circulation in the county where your business operates. The notice typically runs once a week for four consecutive weeks. You choose and pay the newspaper directly, and publication generally costs $30 to $150 depending on the paper and location.
After the final week, the newspaper issues an affidavit confirming the notice ran as required. You then file this affidavit with the same office that processed your original DBA, often within 30 to 45 days of the initial filing date. Missing this deadline can void your registration and force you to start over with a new filing and new fees.
After Your DBA Is Approved
Tax Identification
Filing a DBA does not generate a new tax ID. A sole proprietor with no employees can generally keep using a Social Security number. You need a federal Employer Identification Number (EIN) if you hire employees, operate as a partnership or corporation, file certain excise tax returns, or administer a qualified retirement plan. Many sole proprietors also get an EIN just to avoid giving out their Social Security number. On IRS Form SS-4, your legal name goes on Line 1 and your DBA on Line 2 (the “trade name” field); then pick one and use it consistently on all tax returns, because switching between them causes processing delays.4Internal Revenue Service. Instructions for Form SS-4 (12/2025)
Renewal
DBA registrations expire. In many jurisdictions, the term is five years from the original filing date, though it varies by state. Your approved statement will show the expiration date. If the registration lapses, you lose the right to operate under the name and may have to start the registration from scratch. To renew, file a renewal statement with the same office before your current registration expires. Renewal fees are generally comparable to the original. If nothing has changed — same owner, same address, same business name — the renewal is straightforward, and some jurisdictions do not require republication.
A change in ownership, address, or the nature of the business is different. Most jurisdictions treat these as triggering a brand-new filing, with new fees and, in publication states, a new round of newspaper notices. In many places, a significant change in the facts on your original statement causes it to expire automatically within a set number of days, often 40, so refile promptly.
Closing a DBA You No Longer Use
If you stop using the trade name, formally abandon the registration rather than letting it expire on its own. Most jurisdictions offer a short form, often called a statement of abandonment or certificate of discontinuance, that you file with the same office that holds your DBA. There is usually a small fee. Filing an abandonment removes the name from active records and prevents someone else’s later use of the same name from being linked back to you.