W9 — IRS, Request for Taxpayer Identification Number. The required document is the IRS W9 form. The W9 captures all the required tax information for tax reporting. This includes (1) name, (2) business name, (3) IRS Form W9 — Request for Taxpayer Identification Number This form was issued between October 16, 2009, and October 28, 2014. Please Note (1) the original IRS form was issued with the term “W-9” inserted for identification purposes, but this has been removed from the form. Please Note (2) the IRS Form W9 does not contain a W-9 code. You must use form W-9. Form W9 — Supplemental W-9 The required document is the IRS W9 form. The W9 captures all the required tax information for tax reporting. This includes (1) name, (2) business name, (3) IRS W-9 code; and; (4) business location. Please Contact IRS () to have the form replaced with the new form. The Form W-9 requires the following information when filling out the form: Full name of the taxpayer Street and address City, state and zip code, and telephone number If you are not sure what any of these mean, use the search functions of our website. Entering your tax information will generate one or more tables indicating the number of hours it costs to fill the forms out on your computer or the cost of the documents (i.e., PDF, printer paper). (All fees are in U.S. dollars.) Use your search function to find the number of hours the forms take to complete, and the cost of printing the forms. The amount of time and cost to save on paper will depend on your individual circumstances. For more information see Publication 17, “Filing and Paying Taxes for Individuals,” Tax Center Publications, IRS Publication 17. Form W-9.pdf — Illinois.gov The IRS requires certain types of income, transactions, or transactions to appear as wages on Form W-9. An example is a rental property where the tenant is paying only a portion of his or her rent to the landlord. Other types of property, such as a business, also need to be reported as wages in order to properly compute the employee's share of payroll taxes. This is where the IRS can help.