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 Saving for College 101 Here’s a crash course on saving for college. A Living Trust Primer Living trusts are popular, but their appropriateness will depend upon your individual needs and objectives. Investing with Your Heart For some, the social impact of investing is just as important as the return, perhaps more important.