Form W-9-EZ, Request for Employer's Taxpayer Identification Number and Certification, 1217 (Rev. October 2018) — IRS Go to (Form W-9-EZ). This form asks about the employer reporting a Form W-9-PF. The form will not give an employer name, address, or TIN. It will only ask the employer to give the TIN. Form W-9-IIA, Request for Individual Income Tax Return and Certification, 1217 (Rev. October 2018) — IRS Go to . This form is similar to the 1040EZ. It asks for any tax return information the IRS may need in order to prepare a tax return, and also asks for certification of certain income. This form is only for the individual taxpayer. Form W-9-IIO, Authorization to Mail Form W-9, 1217 (Rev. October 2018) — IRS Go to . This form is similar to the 1040EZ. It will return the taxpayer's name, TIN, and address. This form is only for the individual taxpayer. Form W-10, W-9 (rev. May 2018) with a Form 8283, Declaration of Financial Responsibility for a Tax-Exempt Organization, in lieu of an IRS form— IRS If you have a Form 941, 957, or W-8, see IRS Publication 17, Tax Withholding and Estimated Tax. You can obtain forms to replace Form 941, 957, or W-8 from the following webpages:. You can also use a copy of the above forms that you have on record at your IRS Address.