I guesstimized most of my information knowing I would go back and enter as I received forms. I have always done it this way. Its not letting me revise!

[Summer1]

How can I revise each area like the previous years

[TomYoung]

I've never used online TurboTax but it's always been clear that you should be able to use that program in the same fashion you'd use the desktop versions, i.e., you can keep going back to any area in the income tax return and change information.  At a guess you've encountered a temporary (hopefully) glitch.

[SweetieJean · Accepted solution]

I use Online, and have been able to edit today.

Go to Federal taxes, then (say) Wages and Income. Click the edit button next to the appropriate category.