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 Timing Your Retirement This short video illustrates the importance of understanding sequence of returns risk. Life and Death of a Twenty Dollar Bill How long does a $20 bill last? Working With A Financial Professional A financial professional is an invaluable resource to help you untangle the complexities of whatever life throws at you.