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 RE: Retirement How does your ideal retirement differ from reality, and what can we do to better align the two? Changing Unhealthy Behaviors Five phases to changing unhealthy behaviors. What Do Your Taxes Pay For? Here's a breakdown of how the federal government spends your tax money.