The IRS 2014 federal tax tables can be found on the official Internal Revenue Service website, as of 2015. The tax tables are used to calculate the amount of tax owed in relation to taxable income. They can vary year to year, depending on federal government regulations.
From the Internal Revenue Service main page, click on “Tax Table” under the Forms and Pubs section of the website. Depending on your web browser settings, the file either opens in a new browser window or a dialog box appears on the screen, in which case viewers can save the file in PDF format.