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 Retiring the 4% Rule A portfolio created with your long-term objectives in mind is crucial as you pursue your dream retirement. Countering Counterfeit Currency Combating counterfeiting remains core to preserving the integrity of the nation’s money. Should I Buy or Lease an Auto? This calculator compares the financial impact of leasing versus buying an automobile.