Information about Form W-9, Request for Taxpayer Identification — IRS Information about Form W-9, Request for Taxpayer Identification Number (TIN) and Certification, including recent updates, related forms, and instructions on Form W-9 — IRS — Forms and Instructions (PDF) Form W-9, Request for Taxpayer Identification Number and Certification, 1018, 10/24/2018. Inst W-9, Instructions for the Requestor of Form W-9, Form W-9 (Rev. October 2018) — Accounting and Fiscal Services (PDFs). Go to for instructions and the latest information. Give Form to the requester. Print or type. This is the most accurate guide you will find. They have changed the information on their website, but it is still the definitive guide! About Form W-9 (Rev. October 2018) … Information about Forms W-9 and Other Requests for Taxpayer Identification (TIN): Filing a Form 1099-G — Information to help individuals and companies file for 1099 non-profit income tax forms or 1099-S corporate income tax forms 1099-MISC — Form 1099-MISC is a tax form that allows you to provide your local government with information about any income you receive from outside the United States. Forms 1099-RISC — These 2 forms are both tax forms that are provided to taxpayers in certain geographic areas to report items of interest for the payment of income tax. Generally individuals are notified the income tax is paid on or before December 31 and businesses are notified the income tax is paid on June 15 of each year. Form W-2G — This is a payment from an employer and is also known as an ETC form. Form T-4 — An employer-sponsored credit. Form W-2G — This is a payment from an employer and is also known as an ETC form. Forms 1099-MISC — Form 1099-MISC is a tax form that allows you to provide your local government with information about any income you receive from outside the United States. Forms 1099-RISC — These 2 forms are both tax forms that are provided to taxpayers in certain geographic areas to report items of interest for the payment of income tax.