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 Question Thank you! Oops! Related Content Avoiding Cognitive Decline Try these activities to keep your brain sharp. Estate Management 101 A will may be only one of the documents you need—and one factor to consider—when it comes to managing your estate. Bull and Bear Go To Market Learn about the difference between bulls and bears—markets, that is!