Turbo Tax not calculating Federal Penalty and Interest

I filed a federal extension with the full tax liability paid. After reviewing I found some additional income that I did not include. This does not affect the state refund. When going to file, Turbo tax is assuming it's an April 15 filing and not correctly putting in the current filing date with a calculation of the penalty and interest.

How can I adjust the filing date so that these items are calculated and paid with the liability?

posted

Don't worry about the date. Let the IRS bill you for any penalty and interest. You can't figure it yourself. Just file now. You can efile until Oct 15. Did you enter the amount paid with the extension?