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 How the Federal Reserve Works Each day, the Fed is behind the scenes supporting the economy and providing services to the U.S. financial system. Insuring Your Business With a Buy/Sell Agreement It may help your business be better prepared in the event of the death of a principal or key employee. Changing Unhealthy Behaviors Five phases to changing unhealthy behaviors.