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 Retirement Plan Detectives A couple become Retirement Plan Detectives, searching records from old employers. Surprises Making the most of surprises is a great reason to work with us. Four Really Good Reasons to Invest There are four very good reasons to start investing. Do you know what they are?