New York Application For Index Number is an official form used by the New York State Department of Taxation and Finance to apply for an index number. This number is necessary for filing tax returns or other documents with the department. The application requires the taxpayer to provide certain information about themselves, such as name and contact information, business type, and other relevant information related to the business. There are three types of New York Application for Index Number: General Corporation Application, Limited Liability Company Application, and Partnership Application. Each application requires specific information to be provided, such as the names of all officers, directors, and shareholders, the date the business was formed, the address of its principal office, and other relevant information.