At a recent dinner party, you met Steph Melick, the controller for Mojave Inc. Steph has worked for Mojave for the past seven years. During your conversation, you complained about having to pay your third-quarter estimated taxes on Monday, September 15. In response, Steph indicated that she always underpays her estimated taxes. That way, she can use her money as long as possible.
Is it appropriate to deliberately underpay your estimated taxes?