Can I change filling form from1040ez to 1040?

[stadicstorm]

already have 1040ez in process not complete yet

[KatieB]

The 1040EZ form is the simplest version of the 1040 form. If your tax situation requires a different version of that 1040 form, you can always upgrade to a paid product. In fact, as you go through your return in Federal Free version, the program will recognize if your situation is complex enough to require an upgrade.