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Pursuant to Section 130 of the New York State General Business Law, if you are conducting any business in the County of Westchester under a name other than your own, and are not a corporation, limited partnership or limited liability company, you must file a Business Certificate indicating your Westchester County address in our office.

Getting Started

Once you have determined that your desired business name is available, sole proprietors should submit an original of a notarized Business Certificate. Read More.

Changing or Closing A Business

If the information provided in your Business Certificate changes, you must file an Amended Business Certificate with the Office of the Westchester County Clerk.  Read More.

Corporations, Limited Liability Companies and Limited Partnerships

If you wish to set up your business as a corporation, limited partnership, or limited liability company, you should visit the New York State Department of State, Division of Corporations website for more information.

Limited Liability Company (LLC)

The role of the Westchester County Clerk is limited to designating the two publications in which you must publish the required notice of formation.  Read More.

Visiting Our Office?

Enter through the courthouse and proceed to the third floor.

Richard J. Daronco Courthouse
111 Dr. Martin Luther King Jr. Blvd
White Plains, NY 10601

Hours: Mon - Fri, 8am - 5pm
Passport Hours: 8am - 4:30pm
Closed on official holidays.

Calendar of Events

Thursday, August 24

Mobile Passport Outreach
Yonkers
11am - 2pm

Tibbetts Brook Pool
355 Midland Avenue
Yonkers, NY 10704


Wednesday, August 30

Mobile Passport Outreach
Yonkers
11am - 2pm

Sprain Ridge Park
149 Jackson Ave
Yonkers, NY 10706


Wednesday, September 6

Mobile Passport Outreach
Pelham
11am - 2pm

Town Hall
34 Fifth Avenue
Pelham, NY 10803


Full Calendar of Events