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 Extended Care: A Patchwork of Possibilities What is your plan for health care during retirement? Comparing Mortgage Terms Estimate the total cost in today's dollars of various mortgage alternatives. Pay Yourself First It sounds simple, but paying yourself first can really pay off.