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 Four Really Good Reasons to Invest There are four very good reasons to start investing. Do you know what they are? Social Security: Maximizing Benefits There are other ways to maximize Social Security benefits, in addition to waiting to claim them. Earnings for All Seasons Earnings season can move markets. What is it and why is it important?