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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.

Calendar of Events

June 28, 2016


Mobile Passport Outreach - Port Chester
11 am - 2 pm
Village Hall, 220 Grace Church Street, Port Chester


June 30, 2016

FREE NYSCEF Training Online
2-3 pm
Register here and list of classes here

July 4, 2016
Independence Day Holiday
Office Closed.  
Office will reopen, Tuesday, July 5th at 8 am

July 7, 2016

Mobile Passport Outreach -North Salem
11 am - 2 pm
Town Hall, 266 Titicus Road, North Salem

Calendar of Events

Visiting Our Office?

To visit our office, enter through the Richard J. Daronco Courthouse located at 111 Dr. Martin Luther King, Jr. Blvd. in White Plains. Our office is open Monday through Friday from 8 a.m. until 5 p.m., excluding official holidays.