I answered the questionnaire for the Underpayment Penalty incorrectly, when in fact, I do qualify for the waiver.It won't allow me to edit my response.

[ReginaM]

To edit your response(s) for the underpayment penalty, follow these steps in TurboTax:

1. While in your Tax Home,
2. Select Other Tax Situations from the top menu,
3. Select Show More next to additional tax payments,
4. Select Revisit next to Underpayment Penalties.

[jnedoss]

I am having the same issue.  How do I edit the dollar amounts entered by quarter?  I entered those incorrectly and now I can't figure out how to get back to edit those amounts.  The answer above doesn't really answer the question.