See a form before filing?

In the Online version you can review the Form 1040 at any time for free (but not other forms), or you can pay in advance and then can view/print all the forms at any time, but you can't directly edit on them.    Only the desktop version has Forms Mode, where one can actually view and edit on the forms.

You can preview the Form 1040 at any time for free.  Here's how:

• With the return open, click on MY ACCOUNT at the top, then TOOLS. 
  
• Then choose "View Tax Summary". 
  
• At the top of the Tax Summary screen there is a tab-link to "Preview Form 1040."

To pay in advance to view/print your Form 1040 and other forms at any time:

• With the return open, click on MY ACCOUNT at the top, then PRINT CENTER.
• Choose "Print/save/preview this year's return."  
• It will then prompt you to pay by credit/debit card.  Once paid, you can view the forms at will.

NOTE:  Be aware that a paid-for online return can no longer be cleared if you later want to start over.

In the desktop version, you can view forms by clicking view in the topmost tool bar, then click Forms.  You can select the form you want to see, and actually edit it here too.