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 How Big is Money? Learn a little about worldwide currency in this fun infographic It May Be Time for a Financial Checkup It’s never a bad time to speak with your financial professional about changes in your situation. From Boats to Brokers From the Dutch East India Company to Wall Street, the stock market has a long and storied history.