Should I Pay Off Debt or Invest? This calculator will help determine whether you should invest funds or pay down debt. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Put It in a Letter A letter of instruction provides additional and more personal information regarding your estate. The Other Sure Thing Though we don't like to think about it, all of us will make an exit sometime. Are you prepared? Earnings for All Seasons Earnings season can move markets. What is it and why is it important?