Intuit the maker of TurboTax, is offering a free Tax e-Filing service for people who are going to submit a 1040EZ or standard federal tax form (i.e.: 1040 and 1040A).
Although, if you want more advance services you will have to pay $29.95 for their premier service. See the site for more information about your different options.
Note: State tax eFiling is an additional charge.