Requests to the New York State Division of State Taxation and Finance may be submitted electronically, and may be accepted with or without attachment of supporting documentation. Requests to the New York State Division of State (TOS) — Taxation and Finance — (Tax) Regulations (Page 6), W-9, Form W-9, and Form 5355 – May be electronically submitted by using the link. A complete copy of this form, and an attached original or certified copy of the original, is required for processing and approval. The online submission button must be clicked in order to view and complete this form. If you need the forms on paper, a special form must be filled out and submitted online. If you are unable to submit this type of form, please do not file this form. Tax Identification Numbers The Forms W-9/W-9-EZ and Form W-8BEN are not acceptable replacements for IRS Forms W-8BEN. Form W-8BEN (for Federal Government) — State-Federal Tax Registration Act (Form 940C) — (PDF) — Go to for instructions and the latest information. Fill out, print. Give to the payer or vendor who must register with the Department of Financial Services (DFS).