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 To Catch a Thief Having your identity stolen may result in financial loss plus the cost of trying to restore your good name. Why Regular Rebalancing Makes Sense Without your knowing, your investment portfolio could be off-kilter. Your Changing Definition of Risk in Retirement A change in your mindset during retirement may drive changes to your portfolio.