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 Buying Auto Insurance For Teen Drivers Tips on insuring your teen driver. Retirement Plan Detectives A couple become Retirement Plan Detectives, searching records from old employers. The Utility of Sector Investing Successful sector investing is dependent upon an accurate analysis about when to rotate in and out.