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 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 Latte Lie and Other Myths Check out this video to begin separating fact from fiction. Eight Mistakes That Can Upend Your Retirement There are common mistakes you can avoid when saving for retirement.