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 Money Draining Food Myths These food myths will really put a drain on your wallet. When Does Your Personal Car Become a Commercial Vehicle? At what point can you call a personal vehicle commercial? Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable.