A printable PDF file of the W-9 form is available from the Internal Revenue Service website. As of 2015, taxpayers can access the form directly from the website's homepage under the Forms & Pubs banner on the left. The link downloads a fillable PDF version of the form.
Alternatively, taxpayers can select the Forms & Pubs navigation at the top of the main page, click the Find All Current Forms & Pubs button, and enter W-9 in the search box. The results provide links to both English and Spanish versions of the form and the corresponding instructions. Form W-9 is used to request a Taxpayer Identification Number and Certification.