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 Medicare Advantage 101 Overview of Medicare Advantage, what’s in them, special rules, and more. Retirement Plan Detectives A couple become Retirement Plan Detectives, searching records from old employers. A New Way to Look at Your Bucket List Bucket lists don’t have to be for tomorrow.