How to avoid the underpayment tax penalty

I personally don't think there's anything wrong in owing the IRS some money. I prefer this over a refund. Why? Because owing money means you got a ZERO percent interest loan from the IRS versus them getting the interest free loan from you through a refund. The only thing I would want to avoid is the underpayment tax penalty. There are 3 ways to avoid that and I talk about that in the video below.