One thing to check.....
Did you make estimated payments and forget to enter them?
If you made estimated payments see if they are on line 18. Sometimes they end up line 17 with witholding. If that is the case the IRS will eventually see line 17 is wrong and ask for it back.
Or do you owe the state? At the end Turbo Tax shows you a summary of the net combined federal and state. But that is only for your info. You will still get the full amount and need to pay any tax due separately yourself.
