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 Universal Life Insurance Universal life insurance is permanent insurance with a flexible premium. Here's how it works. Tuning Your Social Security Benefit When should you take your Social Security benefit? Buying Auto Insurance For Teen Drivers Tips on insuring your teen driver.