DBA · New York

How to File an Assumed Name for an LLC in New York

By Edmond Hui · Last updated October 6, 2026

Short answer

New York requires an LLC that does business under a name other than its own to register an assumed name. An LLC that uses a division or trade name together with its own real name is treated as using its real name and does not need a certificate for that. The filing fee is $25.00.

New York Assumed Name at a Glance

Requirement: Required
Where to file: Department of State, Division of Corporations
Fee: $25.00
How long it lasts: Does not expire
Newspaper notice: None found
File online: Not confirmed

How an LLC Files

An LLC files the Certificate of Assumed Name with the Department of State, Division of Corporations.

A certified copy of the filed certificate must be displayed at each place where the business operates under the assumed name. An amended certificate is due within 30 days after any of the facts in the certificate change.

Open the filing office's site

Cost and Renewal

The filing fee is $25.00.

The registration does not expire.

Publication

We found no publication step for an LLC's assumed name filing in New York.

Does it protect the name?

Registering does not give the LLC ownership of, or an exclusive right to, the name.

If you skip it

Knowingly doing business under an unfiled assumed name is a misdemeanor. Until the certificate is filed, the business cannot bring a lawsuit on any contract, account or transaction made under a name other than its real name.

Sole proprietors

New York requires a sole proprietor who does business under a name other than their legal name to register an assumed name. A sole proprietor files when trading under any name other than their real name. Every general partnership must file a certificate, whatever name it trades under, unless it has filed a certificate of continued use of a firm name or is a partnership of lawyers practising law.

A sole proprietor files the Assumed Name Certificate with the county clerk in each county where the business operates.

Filing needs acknowledgment before a clerk or notary.

The filing fee is $25.00. The county clerk collects $25 in each county outside New York City and $100 in each of the five New York City counties (Bronx, Kings, New York, Queens and Richmond). A separate certificate and fee are needed in each county where the business operates.

We found no publication step for a sole proprietor's assumed name filing in New York.

Requirement	Required
Where to file	County office (county clerk)
Fee	See Cost and renewal
How long it lasts	Not confirmed
Newspaper notice	None found
File online	Not confirmed

Next steps

Frequently Asked Questions

: New York requires an LLC that does business under a name other than its own to register an assumed name. An LLC that uses a division or trade name together with its own real name is treated as using its real name and does not need a certificate for that.
: An LLC files the Certificate of Assumed Name with the Department of State, Division of Corporations.
: The filing fee is $25.00.
: The registration does not expire.
: We found no publication step for an LLC's assumed name filing in New York.
: Registering does not give the LLC ownership of, or an exclusive right to, the name.
: Knowingly doing business under an unfiled assumed name is a misdemeanor. Until the certificate is filed, the business cannot bring a lawsuit on any contract, account or transaction made under a name other than its real name.
: New York requires a sole proprietor who does business under a name other than their legal name to register an assumed name. A sole proprietor files when trading under any name other than their real name. Every general partnership must file a certificate, whatever name it trades under, unless it has filed a certificate of continued use of a firm name or is a partnership of lawyers practising law. A sole proprietor files the Assumed Name Certificate with the county clerk in each county where the business operates.

This guide is general information, not legal or tax advice, and reading it does not create an attorney-client relationship. It reports what each state's filing office publishes about registering a business name, with the sources this page cites. A filing here does not register a federal trademark, and fees and forms change between our reviews. Confirm with the office named on this page before you file.

Sources

Each entry below is a document recorded in our verified New York sources, and each entry says what the document is. Some statutory text is read from an accurate mirror rather than from the state's own host, and those say so.

nysenate.gov/legislation/laws/GBS/130N.Y. General Business Law §130, Filing of certificates by persons conducting business under assumed name or as partners
nysenate.gov/legislation/laws/CVP/8021N.Y. CPLR 8021, County clerks other than as clerks of court (fees)
dos.ny.gov/certificate-assumed-name-domestic-and-foreign-limited-liability-companies-0New York Department of State, Certificate of Assumed Name for Domestic and Foreign Limited Liability Companies
dos.ny.gov/instructions-completing-certificate-assumed-name-0New York Department of State, Instructions for Completing the Certificate of Assumed Name
businessexpress.ny.gov/app/answers/cms/a_id/1939New York Business Express, Certificate of Assumed Name (DOS-1338-f)
businessexpress.ny.gov/app/answers/cms/a_id/3050New York Business Express, Sole Proprietorship
dos.ny.gov/system/files/documents/2018/10/1338-f.pdfNew York Department of State, Certificate of Assumed Name (DOS-1338-f)
dos.ny.gov/corporation-and-business-entity-search-databaseNew York Department of State, Corporation and Business Entity Search Database
nysenate.gov/legislation/laws/GBS/130N.Y. General Business Law §130(7)

Edmond Hui · Founder, MyStateLLC

Edmond Hui is a software engineer and serial entrepreneur based in New York who has founded multiple online businesses across e-commerce, media, and information publishing. Before transitioning into tech, he spent years as a commercial real estate professional closing deals totaling over 100,000 square feet, giving him firsthand experience with business formation and entity structuring. He built MyStateLLC to provide the free, state-specific LLC guidance he wished existed when forming his own companies.