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 The Lowdown on Those Free Credit Scores What’s the deal with your yearly free credit report? Four Really Good Reasons to Invest There are four very good reasons to start investing. Do you know what they are? Required Reading: The Economic Report of the President The Economic Report of the President can help identify the forces driving — or dragging — the economy.