Inst W-9, Instruction for the Offender of Form W-9, 1020, 10/24/2018. Forms/Enclosures/Formw9.pdf — IRS Form W9-S3, Declaration For Service of the Summons and Certification, 10/23/2018. Form W9, Request for Taxpayer Identification Number and Certification, 10/25/2018. Forms/Enclosures/Formw9/WS3.pdf — IRS Form W-8, Notice of Federal Tax Lien, 10/10/2018. Form W-8, Notice of Federal Tax Lien, 10/6/2017. Forms/Enclosures/Formw8.pdf — IRS Form W9, Application for IRS Individual Taxpayer Identification — 10/9/2018. Forms/Enclosures/Formw9/WS9.pdf — IRS Please keep all documents when mailing in or taking in an application and when filling out an IRS tax return that includes an IRS Form W9, Request for Taxpayer Identification Number (TIN) or Certification. All documents must be originals or certified copies. Please keep all official documentation for all work you do; this includes employment tax or state income tax information, and all documents or orders issued by the state, county, or city. All state, county, or city information is public information. Do not make any personal or confidential information available, including the information you share with the state public office, through this website. This does not include information in your tax account statements or records sent to the IRS. Please note: Information shared over the email, internet, or telephone is the same as if you sent it in paper form to your tax return. If you fill out an IRS form by email, you do not send the documents to the IRS; you send the electronic version to your return preparer. In order to provide tax advice or answer questions about the IRS form, you must send us the documents that are printed on the IRS Form W9, Request for Taxpayer Identification Number by providing us your email address, telephone number, return mailing address, and Social Security number. You cannot print, copy, or email your tax return directly to us, but must receive it via snail mail.