Where can I find irs tax forms?

In this page you can found all types of IRS tax forms and you can fill it directly and print, is really easy to do that and the URL is http://www.irs.gov/app/picklist/list/formsInstructions.html

Tax forms aren't available in libraries and post offices like they used to be. The simplest way to get the blank form that you need is to log on to irs.gov, on the home page look for "Forms and Publications." Choose the needed form and select "Print"!