What Is a DBA? Everything You Need to Know
A DBA (doing business as) is a registration that lets you operate a business under a name different from your legal name or your company's official registered name. DBAs are also called fictitious business names, trade names, or assumed names depending on your state.
Here is a simple example: Your legal name is John Smith, and you want to open a bakery called "Golden Crust Bakery." Without a DBA, you would have to conduct all business under "John Smith." Filing a DBA lets you legally operate, advertise, and accept payments as Golden Crust Bakery.
DBAs are not business entities. They do not create an LLC, corporation, or any legal structure. A DBA is simply a name registration that connects your operating name to your legal name or entity.
Why Would You Need a DBA?
There are several common reasons business owners file for a DBA:
1. Operating Under a Different Name Than Your Legal Entity
If you formed "Smith Holdings LLC" but want to run a retail store called "Main Street Gifts," you need a DBA. The DBA links your trade name to your legal entity so customers, banks, and the government know who is actually behind the business.
2. Opening a Business Bank Account
Most banks require a DBA certificate before they will open a business account in a name that differs from your legal name or entity name. Without one, you cannot deposit checks made out to your business name.
3. Sole Proprietors Who Want a Business Name
If you are a freelancer or sole proprietor, your legal business name is your personal name by default. A DBA lets you market yourself under a professional business name without forming an LLC or corporation.
4. Running Multiple Brands Under One Entity
A single LLC can file multiple DBAs to operate different brands or product lines. For example, "Johnson Ventures LLC" might file DBAs for "Johnson Landscaping," "Johnson Snow Removal," and "Johnson Property Maintenance" to run three service lines under one legal entity.
5. Rebranding Without Restructuring
If your business pivots or you want a new name, a DBA is the fastest and cheapest way to start operating under a new name without dissolving and reforming your business entity.
How to File a DBA: Step-by-Step
The DBA filing process varies by state and sometimes by county, but the general steps are consistent.
Step 1: Choose Your DBA Name
Before filing, make sure your desired name is available:
- Search your state's business name database to check for conflicts with existing entities
- Search the USPTO trademark database (uspto.gov) to avoid trademark infringement
- Check county records if your state requires county-level filing
- Search domain availability if you plan to build a website
Most states require that your DBA name is distinguishable from existing registered business names. You cannot file a DBA that is identical or confusingly similar to an existing business in your jurisdiction.
Step 2: Determine Where to File
DBA filing requirements vary by state:
- Some states require filing with the state (e.g., Oregon, Colorado, Arizona)
- Some states require filing with the county (e.g., New York, California for sole proprietors)
- Some states require both state and county filing (e.g., Florida, New York for LLCs)
- A few states do not require DBA registration at all (e.g., New Mexico, South Carolina)
Check your state's Secretary of State website or county clerk's office to determine the correct filing location.
Step 3: Complete the Registration Form
The filing form is typically straightforward. You will need to provide:
- Your desired DBA name
- Your legal name (or your entity's legal name)
- Your business address
- The type of business you operate
- Your entity type (sole proprietorship, LLC, corporation, etc.)
Step 4: Pay the Filing Fee
DBA filing fees range from $10 to $150 depending on your state and county. Most filings cost between $20 and $75. See the full state-by-state cost breakdown below.
Step 5: Publish a Notice (If Required)
Some states require you to publish your DBA filing in a local newspaper for a set period (usually 4-6 weeks). States that commonly require publication include:
- New York (must publish in two newspapers for 6 consecutive weeks)
- California (publish once per week for 4 consecutive weeks)
- Nebraska
- Pennsylvania (for some counties)
- Arizona (for some counties)
Publication costs can add $50 to $2,000+ to your total filing cost. New York is notoriously expensive due to the two-newspaper requirement, particularly in New York City where publication costs can exceed $1,500.
Step 6: Renew as Required
Most DBAs are not permanent. Renewal periods vary by state:
- 5 years is the most common renewal period (California, Texas, Florida, and many others)
- 10 years in some states
- No expiration in a few states
Mark your renewal date on your calendar. If your DBA lapses, you lose the right to operate under that name, and someone else could register it.
DBA Costs by State
DBA filing fees vary significantly. Here is what you can expect in 2026:
| State | Filing Fee | Filed With | Renewal Period |
|---|---|---|---|
| Alabama | $0 (no filing required for sole proprietors) | County Probate Court | Varies |
| Alaska | $25 | State (Division of Corps) | 5 years |
| Arizona | $10 | County Recorder | Varies |
| Arkansas | $25 | County Clerk | 5 years |
| California | $26-$81 | County Clerk | 5 years |
| Colorado | $20 | State (Secretary of State) | None (no expiration) |
| Connecticut | $10 | Town Clerk | None |
| Delaware | $25 | County Prothonotary | 5 years |
| Florida | $50 | State (Division of Corps) | None (no expiration) |
| Georgia | $0-$100 | County Superior Court Clerk | Varies |
| Hawaii | $25 | State (DCCA) | 5 years |
| Idaho | $25 | County Recorder | None |
| Illinois | $150 | County Clerk | 5 years |
| Indiana | $0 (no requirement) | N/A | N/A |
| Iowa | $5 | County Recorder | 5 years |
| Kansas | $0 (no requirement for sole props) | County Register of Deeds | Varies |
| Kentucky | $20 | County Clerk | None |
| Louisiana | $75 | Parish Clerk of Court | 5 years |
| Maine | $125 | State (Secretary of State) | 5 years |
| Maryland | $25 | State (SDAT) | 5 years |
| Massachusetts | $65 | City/Town Clerk | 4 years |
| Michigan | $10 | County Clerk | 5 years |
| Minnesota | $50 | State (Secretary of State) | 10 years |
| Mississippi | $25 | County Chancery Clerk | None |
| Missouri | $7 | County Recorder | 5 years |
| Montana | $20 | State (Secretary of State) | None |
| Nebraska | $100 | State (Secretary of State) | 5 years |
| Nevada | $25 | County Clerk | 5 years |
| New Hampshire | $50 | City/Town Clerk | None |
| New Jersey | $50 | County Clerk | None |
| New York | $100-$150 | County Clerk | 5 years |
| North Carolina | $26 | County Register of Deeds | 5 years |
| North Dakota | $25 | State (Secretary of State) | 10 years |
| Ohio | $25 | County Recorder | 5 years |
| Oklahoma | $25 | County Clerk | None |
| Oregon | $50 | State (Secretary of State) | 2 years |
| Pennsylvania | $70 | State (Dept of State) | 10 years |
| Rhode Island | $50 | City/Town Clerk | None |
| South Carolina | $0 (no filing required) | N/A | N/A |
| South Dakota | $10 | County Register of Deeds | None |
| Tennessee | $20 | County Clerk | 5 years |
| Texas | $25-$50 | County Clerk | 10 years |
| Utah | $22 | State (Division of Corps) | None |
| Vermont | $50 | State (Secretary of State) | None |
| Virginia | $10 | State (SCC) | 5 years |
| Washington | $5-$90 | State (Secretary of State) | None (no expiration) |
| West Virginia | $25 | County Clerk | None |
| Wisconsin | $15 | State (DFI) | None |
| Wyoming | $100 | State (Secretary of State) | None |
Note: Costs change periodically. Check your state's filing office for current fees. If your state requires newspaper publication, add $50 to $2,000+ depending on your location.
DBA vs LLC: What Is the Difference?
This is one of the most common points of confusion. A DBA and an LLC serve completely different purposes.
| Feature | DBA | LLC |
|---|---|---|
| What it is | A name registration | A legal business entity |
| Liability protection | None | Yes, separates personal and business assets |
| Tax implications | None, does not affect taxes | Affects how your business is taxed |
| Formation cost | $10-$150 (typically) | $50-$500+ depending on state |
| Legal structure | Does not create one | Creates a separate legal entity |
| Bank account | Allows you to open one under business name | Entity itself can hold accounts |
| Credibility | Basic | Higher, signals a formal business |
| Ongoing compliance | Minimal (renewal only) | Annual reports, fees, and filings |
When a DBA Is Enough
A DBA might be all you need if:
- You are testing a business idea and want to keep costs minimal
- Your business has very low risk of lawsuits (e.g., freelance writing, tutoring)
- You want to operate under a business name but do not need liability protection
- You are a low-revenue side hustle with minimal assets at risk
When You Need an LLC Instead
You should form an LLC rather than just filing a DBA if:
- Your business could face lawsuits or liability claims
- You have personal assets you want to protect
- You want separation between personal and business finances
- You plan to hire employees
- Your business generates significant revenue
- You want to build business credit
The key distinction: a DBA does not protect your personal assets. If someone sues your DBA sole proprietorship, your personal savings, home, and other assets are fair game. An LLC creates a legal wall between your business and personal finances.
Many business owners do both. They form an LLC for legal protection and then file a DBA so the LLC can operate under a customer-facing brand name.
Can an LLC Have a DBA?
Yes. In fact, this is one of the most common uses of a DBA.
When you form an LLC, your legal name is whatever you registered with the state (e.g., "Riverstone Holdings LLC"). If you want to do business under a different name, you file a DBA.
Example: You form "Riverstone Holdings LLC" to manage several businesses. You then file DBAs for:
- "Riverstone Coffee" (your coffee shop)
- "Riverstone Catering" (your catering service)
- "River Beans Online" (your e-commerce store)
All three brands operate under the same LLC, sharing the same EIN, bank account (or separate accounts), and liability protection. This is simpler and cheaper than forming three separate LLCs.
When Multiple DBAs Make Sense
- Running related businesses that share resources
- Testing new product lines or brands
- Operating in different markets with different branding
When Separate LLCs Are Better
- The businesses have unrelated risk profiles (e.g., a consulting firm and a construction company)
- You want to isolate liability between ventures
- Each business has different partners or ownership structures
Do You Need a DBA If You Have an LLC?
Not necessarily. If you plan to operate your business under the exact name you registered with the state, you do not need a DBA. A DBA is only required when you want to use a name that is different from your registered legal name.
You need a DBA if: Your LLC is "Smith Enterprises LLC" but you want to operate as "Smith Auto Repair."
You do not need a DBA if: Your LLC is "Smith Auto Repair LLC" and you operate as "Smith Auto Repair."
Some states also have rules about whether you must include "LLC" in your operating name. If your state requires it and you want to drop the "LLC" from your customer-facing name, you may need a DBA.
Common DBA Mistakes to Avoid
1. Thinking a DBA Gives You Legal Protection
A DBA does not create any liability protection. Only a formal entity (LLC, corporation) provides a legal shield between your business and personal assets. A sole proprietor with a DBA is still personally liable for all business debts and obligations.
2. Not Checking for Trademark Conflicts
Filing a DBA does not give you trademark rights. If another business already holds a trademark for your chosen name, they can force you to stop using it regardless of your DBA registration. Always search the USPTO trademark database before filing.
3. Forgetting to Renew
Most DBAs expire after 5 or 10 years. If you forget to renew, you lose the right to use the name, and another business could register it. Set a calendar reminder well before your expiration date.
4. Filing a DBA When You Need an LLC
If your business carries any meaningful risk, a DBA alone is not sufficient. Too many business owners file a $25 DBA thinking they are "official" when they actually need the liability protection of an LLC.
5. Not Filing at All
Some business owners skip the DBA entirely and operate under an unregistered name. This can prevent you from opening a business bank account, accepting payments under your business name, and may violate state law.
6. Ignoring Publication Requirements
In states that require newspaper publication, failing to publish can make your DBA invalid. Check your state's requirements before assuming your filing is complete.
DBA Filing for Different Entity Types
Sole Proprietor DBA
If you are a sole proprietor, filing a DBA is the most common path to operating under a business name. Your filing connects your personal legal name to your trade name. This is the simplest and cheapest option.
Keep in mind: You still file taxes under your personal Social Security Number unless you obtain an EIN. A DBA does not change your tax situation.
LLC DBA
LLCs file DBAs to operate under names different from their registered LLC name. The DBA is filed by the LLC (not by you personally), and the registration links the trade name to the LLC entity.
Corporation DBA
Corporations file DBAs the same way LLCs do. The corporation is the registrant, and the DBA links the trade name to the corporate entity. This is common for large companies operating multiple brands.
Partnership DBA
Partnerships can file DBAs to operate under a name different from the partnership's legal name. All general partners are typically listed on the filing.
How Long Does It Take to Get a DBA?
Processing times vary by location:
- Same-day to 1 week for most county-level filings
- 1 to 3 weeks for most state-level filings
- 6 to 8 weeks if newspaper publication is required (you must wait for the publication period to complete)
Some states and counties offer expedited processing for an additional fee, typically $25 to $100 extra.
Do You Need an EIN If You Have a DBA?
Not always. Here are the rules:
- Sole proprietors with no employees can use their Social Security Number and do not strictly need an EIN. However, getting one is free and keeps your SSN off business documents.
- LLCs and corporations already have (or need) an EIN regardless of whether they file a DBA.
- If you hire employees, you need an EIN regardless of your entity type.
Getting an EIN is free and takes about 5 minutes through the IRS website. There is no reason not to get one.
Frequently Asked Questions
Is a DBA the same as a business license?
No. A DBA registers your business name. A business license gives you permission to operate in a specific jurisdiction. Most businesses need both a DBA (if using a trade name) and the appropriate licenses and permits for their industry and location.
Can I have multiple DBAs?
Yes. A single person or entity can file multiple DBAs. Each filing typically requires its own fee. This is a common strategy for operating multiple brands under one legal entity.
Does a DBA protect my business name?
Only partially. A DBA prevents others from registering the same name in your filing jurisdiction (county or state). But it does not provide nationwide protection like a trademark does. If you want strong name protection, consider filing a federal trademark with the USPTO.
Can I use my DBA in another state?
No. A DBA is only valid in the state (and sometimes the county) where you filed it. If you do business in another state, you need to file a new DBA there.
What happens if I do not renew my DBA?
Your registration expires and you lose the legal right to operate under that name. You may also face penalties in some states. Another person or business could register the name after yours lapses.
The Bottom Line
A DBA is one of the simplest and most affordable business filings you can make. It lets you operate under a professional business name, open a bank account, and build a brand identity.
But a DBA is not a substitute for proper legal structure. If your business carries any meaningful liability risk, form an LLC or corporation first, and then file a DBA if you need to operate under a different name.
For most small business owners, the right approach is:
1. Form an LLC for liability protection and tax flexibility
2. File a DBA if you want to operate under a name different from your LLC's registered name
3. Get an EIN for free from the IRS
4. Open a business bank account under your DBA name
Total cost for all four steps: typically $100 to $500 depending on your state.
This article is for educational purposes only and does not constitute legal or tax advice. Consult a qualified attorney or CPA for guidance specific to your situation.