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 Question Thank you! Oops! Related Content Fallen Tree Damage—Who Pays? Your liability for damages that occur when a tree on your property falls on your neighbor’s property is not clear cut. Should You Invest in Exchange Traded Funds? There are thousands of ETFs available. Should you invest in them? Choosing a Retirement Plan that Fits Your Business To choose a plan, it’s important to ask yourself four key questions.