Art5, appreciate your fast response and unyielding optimism in TurboTax. but that is the wrong answer. If it is small penalty, then the IRS does not battle you for a penalty on top of a penalty which is the easiest audit reversal. Over paying penalties and estimated taxes (another broken feature of TurboTax, but can be overridden by physical practice) is giving IRS an interest-free loan.
These are our own personal taxes, the form should open the "cell" to $0 the input.
