Comment Re:Precalculated (Score 1) 109
You may want to work on your comprehension.
If you follow all THEIR instructions and make a mistake because you followed their instructions, you will not be held accountable (and duh, of course you have to pay the difference, they just aren't going to charge you for misfiling).
"If you make an honest mistake in trying to follow our information in e-tax 2014 and you owe us money as a result, we will not charge you a penalty. However, we will ask you to pay the money, and we may also charge you interest. If correcting the mistakes means we owe you money, we will pay it to you. We will also pay you any interest you are entitled to." - eTax help guide.