The New York IRS W9 Form is an official document used by the Internal Revenue Service (IRS) to collect taxpayer information. This form is used by businesses to obtain the taxpayer’s Social Security number or employer identification number (EIN) for tax reporting purposes. It is also used to fund payments made to businesses for services rendered. There are three types of New York IRS W9 Forms: the New York State W-9 Request for Taxpayer Identification Number and Certification Form, the New York City W-9 Request for Taxpayer Identification Number and Certification Form, and the New York State and City Combined W-9 Request for Taxpayer Identification Number and Certification Form. The New York State W-9 is used by businesses to collect taxpayer information from individual taxpayers, while the New York City W-9 is used by businesses to collect taxpayer information from business taxpayers. The New York State and City Combined W-9 is used when both the New York State and New York City W-9 forms are required. All three forms must be completed accurately and submitted to the IRS for processing.