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 Does Your Child Need to File an Income Tax Return? When your child has income, there’s a good chance that he or she will need to report it and pay taxes. What Smart Investors Know Savvy investors take the time to separate emotion from fact. How Much Home Can I Afford? With a few simple inputs you can estimate how much of a mortgage you may be able to obtain.