Plenty of New York businesses operate under a name that is not their legal name. A corporation formed under a long formal title might trade under a short, memorable one, and an LLC might brand itself with a name entirely different from the one on its formation paperwork. Filings for these trade names are called assumed names, and the everyday shorthand is DBA — “doing business as.”
Where the name is filed depends on the type of business. Corporations, not-for-profit corporations, LLCs, and limited partnerships file a Certificate of Assumed Name with the New York Department of State, and those filings are searchable in the official Corporation and Business Entity Database. Sole proprietorships and general partnerships are a different case entirely: they do not file with the Department of State at all — their DBAs are filed with county clerks. This page covers how to search assumed names in the official database, who files where, and where the filing paperwork lives. Like everything in the database, searching is free and requires no account.
How to Search for a New York Assumed Name
The official search app has two fields built for assumed names. Both sit in the same Search By menu as the regular entity search, and both are free to use.
- Open the official search. Use the button above to reach the Department of State’s Public Inquiry application. It is free, and no login is required.
- Select Assumed Name. In the Search By field, choose Assumed Name. Choose Assumed Name ID instead when an ID from a prior lookup is already in hand.
- Type the assumed name being checked. Use the Contains option when the exact wording is uncertain, so partial matches come back too.
- Filter by entity type — LLC, corporation, limited partnership — when that trims a long list.
- Click Search the Database and open the records that match.
- Read each record with the trade name in view. The filing ties the assumed name to the entity behind it.
- Open the entity’s record for the full entry — legal name, status, county, and filing history.
Entity Name Search vs Assumed Name Search
Note the difference between the two name searches. Searching by Entity Name looks for the entity’s legal name as filed; searching by Assumed Name looks for the names entities do business under. A company can appear under both, which is why the database keeps the two searches separate.
| Search option | What it finds | Best fit |
|---|---|---|
| Entity Name | The entity’s legal name as filed with the Department | Checking a company by its official name |
| DOS ID | One entity, by its nine-digit identifier | Precise lookups when the number is known |
| Assumed Name | The trade names entities do business under | Looking up a brand or trade name |
| Assumed Name ID | One assumed-name filing, by its ID | Exact-match lookups from a prior result |
The two searches complement each other. A trade-name lookup that comes back empty may still find the company under its legal name, and the reverse holds true.
Using the Assumed Name ID Option
An Assumed Name ID search is an exact-match route. The ID points to one filing, so the result lands directly when the number is complete and accurate.
The ID turns up on paperwork from earlier searches and record requests. With the number in hand, the option skips the sorting step entirely.
Who Files Assumed Names — and Where
Assumed-name filings in New York split into two tracks. Entities that file with the Department of State file their certificates with the Department; sole proprietorships and general partnerships file theirs with county clerks.
The Two Filing Tracks
- Domestic and foreign business corporations file a Certificate of Assumed Name with the Department of State
- Not-for-profit corporations file with the Department of State
- Limited liability companies (LLCs) file with the Department of State
- Limited partnerships file with the Department of State
- Sole proprietorships file DBAs with the county clerk — not with the Department of State
- General partnerships file DBAs with the county clerk — not with the Department of State
| Business type | Where the assumed name is filed | Where to search |
|---|---|---|
| Domestic and foreign business corporations | Department of State | Official entity database |
| Not-for-profit corporations | Department of State | Official entity database |
| Limited liability companies (LLCs) | Department of State | Official entity database |
| Limited partnerships | Department of State | Official entity database |
| Sole proprietorships | County clerk | County clerk’s office |
| General partnerships | County clerk | County clerk’s office |
That split matters when searching. The Department of State’s database contains only the entities that file with the Department, so a sole proprietor’s or general partnership’s trade name will not appear there. For those businesses, the county clerk’s office is the place to check.
Why New York Businesses Use Assumed Names
A legal name and a trade name do different jobs. The legal name appears on formation paperwork and state filings; the assumed name is the name customers see on signage, ads, and storefronts.
Corporations often shorten long formal titles. An LLC might brand itself with a name entirely different from the one on its formation paperwork. In each case, a Certificate of Assumed Name records the trade name with the Department.
The filing does not create a new company. The assumed name attaches to the existing entity, and the corporation or LLC behind the brand stays the same legal organization. Banks and counterparties may ask for the filing paperwork before they work with a business under its trade name.
Where the Name Shows Up After Filing
Once a certificate is recorded, the assumed name becomes part of the entity’s record. The database then shows the trade name alongside the legal name, and both are searchable.
That pairing is what a searcher sees in practice: one entity, two names, one record. The entity name search and the assumed name search simply reach the same record from different doors.
Filing a Certificate of Assumed Name
Businesses that want to operate under a name other than their legal one file a Certificate of Assumed Name with the Department of State; filing fees apply. The Department’s Certificate of Assumed Name page sets out the filing for domestic and foreign business corporations.
The filing is separate from the search. Searching the database costs nothing, and the fee attaches to the filing itself. Once the certificate is recorded, the pairing of legal name and assumed name becomes part of the entity’s public record.
DBAs at the County Level
Sole proprietorships and general partnerships do not file with the Department of State at all. Their DBAs are filed with county clerks, so those trade names never enter the state’s entity database.
A county search is the matching step for unincorporated businesses. The clerk’s office holds the DBA filings, and a lookup there answers the question the state database cannot.
A county assumed-name record lists the trade name, the owner’s name and home address, and the date the certificate took effect. County clerks keep these filings on public record, and most offices handle a written request by mail. Fees differ from county to county, and a certified copy of a filing costs a small extra charge.
The record stays on file at the clerk’s office, and the owner files an amended certificate when the details change. A business that closes without a withdrawal leaves its filing in place, so an old record can linger for years. That gap is one more reason the county clerk answers questions the state database cannot.
Keep this in mind: a storefront name can hide the legal name behind it. When a state search comes back empty, check whether the business is a sole proprietorship or a general partnership — then take the lookup to the county clerk.
LLCs: Publication Is a Separate Matter
New York adds one more step for newly formed LLCs: publish notice in two newspapers for six consecutive weeks within 120 days of formation. That duty attaches to the LLC’s formation.
That publication duty is separate from any assumed-name filing, and the database does not display whether the notices ran. The two requirements run on separate tracks.
Assumed Name Search vs Name Availability Check
Searching the database and checking name availability are two different steps. The database shows what has already been filed; the availability check asks whether a proposed name can be used.
A proposed name deserves its own check before paperwork goes in. Identical or deceptively similar names may cause a rejected filing, so the free database search is the natural first pass on any candidate name.
Besides the free search, the Department offers a written-request name search, and the call center can search up to five names per call. The New York Name Availability page walks through that process.
An assumed name search fits a different question: which entities already operate under a trade name, and which entities stand behind those names.
Common Mistakes in an Assumed Name Search
A few missteps come up often in trade-name research. A short list keeps them in view:
- Searching the state database for a sole proprietor’s DBA. Those filings live with county clerks
- Treating a trade name as a separate company. The assumed name attaches to an existing entity
- Skipping the legal-name search. An entity can surface under either name
- Reading the search as a name-availability check. A proposed name needs its own check
- Guessing at the exact wording. The Contains option returns partial matches
- Ignoring the entity type filter. It trims long lists fast
Tips for a Cleaner DBA Search
A few habits sharpen every assumed-name lookup:
- Search both ways. Run the Entity Name search and the Assumed Name search before calling a result final
- Capture the entity’s DOS ID. It ties the trade name to the entity for every later check
- Note entity type and county. Both fields separate look-alike matches
- Go to the county clerk for unincorporated businesses
- Recheck before printing signage or signing contracts — the search is free, so a fresh look costs nothing
Quick tip: the distinctive word does the work. A Contains search on the word that makes the name unique — rather than the full string — usually lands on the filing fastest.
When to Order the Filing Paperwork
The database shows the filing; the paperwork behind it lives with the Division of Corporations. Copies of corporation or business entity documents are requested in writing, as described on the Department’s document copies page.
A copy suits the moments when the filing itself matters — banking paperwork, contracts, or a dispute over who operates under a name. For most research, the free database record carries enough detail.
Related Searches
- New York Business Name Search
- New York Name Availability
- New York Business Entity Search
- New York LLC Search
- New York Corporation Search
New York Department of State — Division of Corporations, State Records and UCC
- Address: One Commerce Plaza, 99 Washington Avenue, Albany, NY 12231-0001
- Phone: (518) 473-2492 (Monday–Friday, 8:45 AM – 4:30 PM ET)
- Email: corporations@dos.ny.gov
- Official website: dos.ny.gov
NewYorkCompanySearch.us is an independent website and is not affiliated with, endorsed by, or sponsored by the New York Department of State or any government agency. All searches are performed on official state databases linked from this page.
Frequently Asked Questions
These answers cover the questions that come up most often in trade-name research. Each one sticks to how the state system works.
Is a DBA the same as an assumed name in New York?
They describe the same idea — operating under a name other than the legal one. State filings use the term “assumed name,” and “DBA” is the common shorthand. Sole proprietorships and general partnerships file DBA certificates with county clerks rather than with the Department of State.
Will the DOS database show a sole proprietor’s DBA?
No. Sole proprietorships and general partnerships do not file with the Department of State, so their trade names are not in the database. Those DBAs are filed with county clerks, and the clerk’s office is the place to look.
Does an assumed name search cost anything?
No. Searching the Corporation and Business Entity Database is free and requires no login. Filing a Certificate of Assumed Name is a separate step, and fees apply to the filing itself.
Does filing an assumed name create a new company?
No. The Certificate of Assumed Name adds a trade name to an existing entity. The corporation or LLC behind the name stays the same legal organization.
What is the difference between an entity name and an assumed name?
The entity name is the legal name on the entity’s filings. The assumed name is a trade name the entity does business under. The database keeps two search options for the two kinds of names.