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 Should You Tap Retirement Savings to Fund College? There are three things to consider before dipping into retirement savings to pay for college. Social Security: Five Facts You Need to Know Here are five facts about Social Security that are important to keep in mind. Jane Bond: Infiltrating the Market Agent Jane Bond is on the case, cracking the code on bonds.