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 The Anatomy of an Index The S&P 500 represents a large portion of the value of the U.S. equity market, it may be worth understanding. A Decision Not Made Is Still a Decision Investors who put off important investment decisions may face potential consequence to their future financial security. The ABC’s of Auto Insurance What kind of auto insurance should you have? Do you know?